FORM 2
THE PATENTS ACT, 1970 (39 of 1970) & THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10, rule 13) 1. Title of the invention: AN AQUEOUS CLEANING COMPOSITION
2. Applicant(s)
NAME NATIONALITY ADDRESS
JYOTHY LABORATORIES Indian JYOTHY LABORATORIES
LIMITED LIMITED, Ujala House,
RamaKrishna Mandir Road, Kondivita, Andheri East, Mumbai-400059, Maharashtra, India
3. Preamble to the description
COMPLETE SPECIFICATION
The following specification particularly describes the invention and the manner in which it
is to be performed.

FIELD OF INVENTION
[001] The present disclosure relates in general to cleaning compositions, more particularly to a cleaning composition for cleaning hard surfaces. It also relates to a process for the preparation of the said composition.
BACKGROUND OF THE INVENTION
[002] Toilets are typically breeding grounds for several potent microorganisms. Diseases such as urinary tract infections are primarily caused via contaminated toilets. The microbicidal action of toilet disinfectants and cleaning agents can prevent such pathogens from causing infections in humans.
[003] Commercial toilet cleaners can be classified into three categories: (a) mineral acid based; (b) bleaching agent based; and (c) weak acid based. Mineral acid, in particular hydrochloric acid, based cleaners are most common and effective. Majority of toilet cleaners available in the market are mineral acid based. The reason for their prevalence is, as mentioned above, their cleaning efficiency. However, mineral acid based toilet cleaners come with certain drawbacks. The most commonly used mineral acid in such cleaners is hydrochloric acid (HCl). HCl is known to gradually scrape away the ceramic surfaces and HCl fumes are also considered to be toxic. Normally, toilet cleaners contain HCl in a concentration of 9.5% or more (EP2539424), and when used for cleaning purposes HCl fumes are easily detectable by their characteristic odour. These fumes affect the mucous membrane, and can cause inter alia coughing, hoarseness, shortness of breath, and larynx spasms. In case of spillage and accidental contact with human skin, it can be extremely corrosive. Additionally, as toilet cleaning inherently involves draining off the toilet cleaner with water, after it has been in contact with the surface to be cleaned for a sufficient period of time, the process leads to pollution of water bodies where these water streams eventually reach. HCl is not biodegradable and causes harm to aquatic life. Further, as mentioned above HCl is also known to erode the ceramic material that makes up the toilet bowl. This erosion leaves minute dents on the otherwise plain surface. When impurities like water, salts from hard water, and iron enter these dents, they create permanent, indelible stains. Another challenge associated with HCl based toilet cleaners is the incompatibility of HCl with perfumes, thereby leaving very little scope to enhance the product aesthetically. Thus, despite the advantages they offer with regards cleaning efficiency, the above-mentioned drawbacks have left the consumers wanting for better alternatives.

[004] Alternative cleaning agents utilizing sodium hypochlorite (bleaching agent) are also available, but they too are toxic and less effective when compared with strong acids in scale removal. The third category comprises toilet cleaners made of weak acids such as citric acid or glycolic acid (US6153572). Although they are low on toxicity and environmental impact, their cleaning ability is poor, which is something they are primarily used for.
[005] Thus, in view of the problems associated with available toilet/ceramic surface cleaners, a cleaning composition providing equally good or better cleaning and at the same time not posing health and environmental hazards and other problems as stated above, will address existing consumer needs in a big way.
SUMMARY OF THE INVENTION
[006] In an aspect of the present disclosure, there is provided a composition comprising: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope; and (f) water.
[007] In another aspect of the present disclosure, there is provided a process for preparation of a composition comprising: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope; and (f) water, said process comprising: (a) obtaining at least one organic acid; (b) obtaining at least one shine polymer; (c) obtaining at least one thickener; (d) obtaining at least one surfactant; (e) obtaining at least one hydrotrope; (f) obtaining water; and (g) contacting the at least one organic acid, the at least one shine polymer, the at least one thickener, the at least one surfactant, the at least one hydrotrope, and water to obtain the composition.
[008] These and other features, aspects, and advantages of the present subject matter will be better understood with reference to the following description and appended claims. This summary is provided to introduce a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
DETAILED DESCRIPTION OF THE INVENTION
[009] Those skilled in the art will be aware that the present disclosure is subject to variations
and modifications other than those specifically described. It is to be understood that the present

disclosure includes all such variations and modifications. The disclosure also includes all such steps, features, compositions, and compounds referred to or indicated in this specification, individually or collectively, and any and all combinations of any or more of such steps or features.
Definitions
[0010] For convenience, before further description of the present disclosure, certain terms
employed in the specification, and examples are collected here. These definitions should be read
in the light of the remainder of the disclosure and understood as by a person of skill in the art.
The terms used herein have the meanings recognized and known to those of skill in the art,
however, for convenience and completeness, particular terms and their meanings are set forth
below.
[0011] The articles “a”, “an” and “the” are used to refer to one or to more than one (i.e., to at
least one) of the grammatical object of the article.
[0012] The terms “comprise” and “comprising” are used in the inclusive, open sense, meaning
that additional elements may be included. It is not intended to be construed as “consists of only”.
[0013] Throughout this specification, unless the context requires otherwise the word “comprise”,
and variations such as “comprises” and “comprising”, will be understood to imply the inclusion
of a stated element or step or group of element or steps but not the exclusion of any other
element or step or group of element or steps.
[0014] The term “including” is used to mean “including but not limited to”. “Including” and
“including but not limited to” are used interchangeably.
[0015] The term “at least one” is used to mean one or more and thus includes individual
components as well as mixtures/combinations.
[0016] The term “cps” in context of present invention refers the unit of viscosity “centipoise”.
[0017] The term ‘organically modified layered silicate’ refers to layered silicates that are about
1nm thick, but have large surface area and have moderate surface charge. Organically modified
layered silicates are generally made by a cation exchange reaction between the silicate cations
and an alkylammonium or phosphonium salt.
[0018] Ratios, concentrations, amounts, and other numerical data may be presented herein in a
range format. It is to be understood that such range format is used merely for convenience and
brevity and should be interpreted flexibly to include not only the numerical values explicitly

recited as the limits of the range, but also to include all the individual numerical values or sub¬ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a temperature ranges of about 15-35 °C should be interpreted to include not only the explicitly recited limits of about 15 °C to about 35 °C, but also to include sub-ranges, such as 15-20 °C, 18-28 °C, and so forth, as well as individual amounts, including fractional amounts, within the specified ranges, such as 15.2 °C, and 28.5 °C, for example. [0019] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the disclosure, the preferred methods, and materials are now described. All publications mentioned herein are incorporated herein by reference. [0020] The present disclosure is not to be limited in scope by the specific implementations described herein, which are intended for the purposes of exemplification only. Functionally-equivalent products, compositions, and methods are clearly within the scope of the disclosure, as described herein.
[0021] As discussed above, available toilet cleaning formulations suffer from drawbacks of either toxicity or ineffective cleaning. The popular hydrochloric acid based cleaners perform well as far as cleaning capacity is concerned, but the vapours evolving from these cleaners are hazardous to both humans and the environment. Organic acids are known to be milder, in that many of them do not give rise to toxic fumes and quite a few of them are biodegradable. Table 1 below depicts comparative data of how HCl, sodium hypochlorite, and organic acids perform with regards properties like corrosivity, fuming behavior, and other similar properties relevant from safety perspective.

Characteristics Hydrochloric acid Sodium hypochlorite Organic acids
Corrosion (Rate) High; 0.9 mg/sq.cm/yr. (12% Silicon composite ceramic exposed to 25% HCl) Low;
(Only at
decomposition
temperature) Very low

Fumes Harmful;
2-10 ppm of
10-15% HCl fumes
(commercial product conc.)
is a respiratory toxin;
*PEL = 5 ppm and
Threshold = 2 ppm;
Occupational exposure
(concentrated soln.) = 100
ppm No fumes;
(Chlorine gas if
liberated has *PEL =
0.5 ppm) No fumes even at high temperatures
Odour Strong pungent; Threshold = 0.3 ppm Chlorine gas; Threshold = 0.1 ppm Mild, not offensive
Biodegradability Non-Biodegradable Non-Biodegradable Biodegradable
Storage and handling High risk
(Spillage, corroding or
fuming) High risk Less risk
[0022] The data in Table 1 clearly illustrate superiority of organic acids over HCl and sodium
hypochlorite. Accordingly, the present disclosure provides an organic acid-based composition
that combines the desirable characteristics of low toxicity, and low pH to provide effective
cleaning of hard surfaces, whilst being environmentally benign.
[0023] The composition according to the present disclosure comprises: (a) at least one organic
acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at
least one hydrotrope, and (f) water.
[0024] In one non-limiting example of the present disclosure, there is provided a composition as
described herein, wherein the composition has a pH in the range of 0-3. In another non-limiting
example, the composition has a pH in the range of 1-3. In yet another non-limiting example, the
composition has a pH of 1.2.
[0025] In one non-limiting example of the present disclosure, there is provided a composition as
described herein, wherein the composition has a viscosity in the range of 1000-1400 cps. In
another non-limiting example, the composition has a viscosity in the range of 1100-1300 cps. In
yet another non-limiting example, the composition has a viscosity of 1200 cps.

[0026] The composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the composition has a pH in the range of 0-3. [0027] The composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the composition has a viscosity in the range of 1000-1400 cps.
[0028] The composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the composition has a pH in the range of 0-3 and viscosity in the range of 1000-1400 cps.
[0029] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water. [0030] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer selected from the group consisting of acrylic copolymers, aqueous solutions of polymers having a pH in the range of 4.0 to 7.0, their salts, and combinations thereof; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water.
[0031] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the at least one shine polymer includes polyacrylates selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof.
[0032] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener selected from the group consisting of oleyl amine ethoxylate, xanthan gum, organically modified layered silicates, and combinations thereof; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water. In another non-limiting example, the at least one thickener is oleyl amine ethoxylate.

[0033] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and combinations thereof; (e) at least one hydrotrope, and (f) water. In another non-limiting example, the at least one surfactant is lauryl alcohol ethoxylate.
[0034] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope selected from the group consisting of sodium cumene sulfonate, sodium xylene sulfonate, sodium toluene sulfonate, and combinations thereof, and (f) water. In another non-limiting example, the at least one hydrotrope is sodium cumene sulfonate.
[0035] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof; (b) at least one shine polymer selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof; (c) at least one thickener selected from the group consisting of oleyl amine ethoxylate, xanthan gum, organically modified layered silicates, and combinations thereof; (d) at least one surfactant selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and combinations thereof; (e) at least one hydrotrope selected from the group consisting of sodium cumene sulfonate, sodium xylene sulfonate, sodium toluene sulfonate, and combinations thereof, and (f) water. [0036] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid organic acid having the weight percentage in the range of 4.0 – 15 % with respect to the composition; (b) at least one shine polymer having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%.

[0037] The composition according to the present disclosure comprises: (a) at least one organic acid organic acid having the weight percentage in the range of 4.0 – 15 % with respect to the composition; (b) at least one shine polymer having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%, wherein the composition has a pH in the range of 0-3. [0038] The composition according to the present disclosure comprises: (a) at least one organic acid organic acid having the weight percentage in the range of 4.0 – 15 % with respect to the composition; (b) at least one shine polymer having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%, wherein the composition has a viscosity in the range of 1000-1400 cps. [0039] The composition according to the present disclosure comprises: (a) at least one organic acid organic acid having the weight percentage in the range of 4.0 – 15 % with respect to the composition; (b) at least one shine polymer having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%, wherein the composition has a pH in the range of 0-3 and viscosity in the range of 1000-1400 cps.
[0040] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof having the weight percentage in the range of

4.0 – 15 % with respect to the composition; (b) at least one shine polymer selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener selected from the group consisting of oleyl amine ethoxylate, xanthan gum, and combinations thereof having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and combinations thereof having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate and combinations thereof having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%.
[0041] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof having the weight percentage in the range of 4.0 – 15 % with respect to the composition; (b) at least one shine polymer selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener selected from the group consisting of oleyl amine ethoxylate, xanthan gum, and combinations thereof having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and combinations thereof having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate and combinations thereof having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%%, wherein the composition has a pH in the range of 0-3.
[0042] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof having the weight percentage in the range of

4.0 – 15 % with respect to the composition; (b) at least one shine polymer selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener selected from the group consisting of oleyl amine ethoxylate, xanthan gum, and combinations thereof having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and combinations thereof having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate and combinations thereof having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%%, wherein the composition has a viscosity in the range of 1000-1400 cps.
[0043] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof having the weight percentage in the range of 4.0 – 15 % with respect to the composition; (b) at least one shine polymer selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener selected from the group consisting of oleyl amine ethoxylate, xanthan gum, and combinations thereof having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and combinations thereof having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate and combinations thereof having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition, and (f) water having weight percentage as much as is required to make the composition 100%%, wherein the composition has a pH in the range of 0-3 and viscosity in the range of 1000-1400 cps.
[0044] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener;

(d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the at least one organic acid to the at least one shine polymer weight ratio is in the range of 1:0.006 – 1:0.25. In another non-limiting example, the at least one organic acid to the at least one shine polymer weight ratio is in the range of 1:0.007 – 1:0.24. In another non-limiting example, the at least one organic acid to the at least one shine polymer weight ratio is 1:0.02.
[0045] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the at least one organic acid to the at least one thickener weight ratio is in the range of 1:0.13 – 1:1.25. In another non-limiting example, the at least one organic acid to the at least one thickener weight ratio is in the range of 1:0.14 – 1:1.24. In another non-limiting example, the at least one organic acid to the at least one thickener weight ratio is 1:0.3.
[0046] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the at least one organic acid to the at least one surfactant weight ratio is in the range of 1:0.006 – 1:0.125. In another non-limiting example, the at least one organic acid to the at least one surfactant weight ratio is in the range of 1:0.007 – 1:0.124. In another non-limiting example, the at least one organic acid to the at least one surfactant weight ratio is 1:0.02.
[0047] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope, and (f) water, wherein the at least one organic acid to the at least one hydrotrope weight ratio is in the range of 1:0.06 – 1:0.5. In another non-limiting example, the at least one organic acid to the at least one hydrotrope weight ratio is in the range of 1:0.07 – 1:0.4. In another non-limiting example, the at least one organic acid to the at least one hydrotrope weight ratio is 1:0.2.
[0048] In one non-limiting example of the present disclosure, there is provided a composition as described herein, wherein the composition further comprises at least one excipient selected from the group consisting of colorant, fragrance, antioxidant, and combinations thereof. The fragrance may be selected from synthetic or natural fragrances known in the art.

[0049] In one non-limiting example of the present disclosure, there is provided a composition as described herein, wherein: (a) the colorant has a weight percentage in the range of 0.004 – 0.07 % with respect to the composition, and the colorant is selected from the group consisting of acid blue 80, quinoline yellow, and combinations thereof; (b) the fragrance has a weight percentage in the range of 0.06 – 0.12 % with respect to the composition, and the fragrance is selected from the perfume groups consisting of floral fragrances, elengi fragrances, and combinations thereof, and (c) the antioxidant has a weight percentage in the range of 0.02 – 0.05 % with respect to the composition, and the antioxidant is selected from the group consisting of butylated hydroxy toluene (BHT), butylated hydroxy anisole, and combinations thereof. In another non-limiting example of the present disclosure, the fragrance is a floral fragrance. In yet another non-limiting example of the present disclosure, the anti-oxidant is butylated hydroxy toluene. [0050] In one non-limiting example of the present disclosure, there is provided a composition as described herein, wherein: (a) the colorant has a weight percentage in the range of 0.004 – 0.07 % with respect to the composition, and the colorant is selected from the group consisting of acid blue 80, quinoline yellow, and combinations thereof; (b) the fragrance has a weight percentage in the range of 0.06 – 0.12 % with respect to the composition, and the fragrance is selected from the perfume groups consisting of floral as well as elengi fragrances like perfume flora fresh 067 IMPD, perfume floral boost VIS MOD 1, perfume Elengi mod C 9018 and combinations thereof, and (c) the antioxidant has a weight percentage in the range of 0.02 – 0.05 % with respect to the composition, and the antioxidant is selected from the group consisting of butylated hydroxy toluene (BHT), butylated hydroxy anisole, and combinations thereof.
[0051] In one non-limiting example, the composition according to the present disclosure comprises: (a) at least one organic acid selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof having the weight percentage in the range of 4.0 – 15 % with respect to the composition; (b) at least one shine polymer selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition; (c) at least one thickener selected from the group consisting of oleyl amine ethoxylate, xanthan gum, and combinations thereof having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition; (d) at least one surfactant selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and

combinations thereof having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition; (e) at least one hydrotrope selected from the group consisting of sodium xylene sulfonate, sodium cumene sulfonate and combinations thereof having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition; (f) at least one colorant selected from the group consisting of acid blue 80, quinoline yellow, and combinations thereof has a weight percentage in the range of 0.004 – 0.07 % with respect to the composition; (g) at least one the fragrance has a weight percentage in the range of 0.06 – 0.12 % with respect to the composition, and the fragrance is selected from the perfume groups consisting of floral as well as elengi fragrances like perfume flora fresh 067 IMPD, perfume floral boost VIS MOD 1, perfume Elengi mod C 9018, and combinations thereof has a weight percentage in the range of 0.06 – 0.12 % with respect to the composition; (h) at least one antioxidant is selected from the group consisting of butylated hydroxy toluene, butylated hydroxy anisole, and combinations thereof has a weight percentage in the range of 0.02 – 0.05 % with respect to the composition, and (i) water having weight percentage as much as is required to make the composition 100%, wherein the at least one organic acid to the at least one shine polymer weight ratio is in the range of 1:0.006 – 1:0.25, the at least one organic acid to the at least one thickener weight ratio is in the range of 1:0.13 – 1:1.25, the at least one organic acid to the at least one surfactant weight ratio is in the range of 1:0.006 – 1:0.125, the at least one organic acid to the at least one hydrotrope weight ratio is in the range of 1:0.06 – 1:0.5.
[0052] In one non-limiting example, the composition according to the present disclosure comprises: (a) methane sulfonic acid having the weight percentage of 8.6 % with respect to the composition; (b) Polyquart PRO having the weight percentage of 0.2 % with respect to the composition; (c) oleyl amine ethoxylate having the weight percentage of 3.0 % with respect to the composition; (d) lauryl alcohol ethoxylate having the weight percentage of 0.2 % with respect to the composition; (e) sodium cumene sulfonate having the weight percentage in the range of 1.4 % with respect to the composition; (f) acid blue 80 having a weight percentage of 0.012 % with respect to the composition; (g) perfume flora fresh 067 IMPD having a weight percentage of 0.07 % with respect to the composition; (h) BHT having a weight percentage in the range of 0.03 % with respect to the composition, and (i) water having weight percentage as much as is required to make the composition 100%.

[0053] In one non-limiting example of the present disclosure, there is provided a process for preparing a composition comprising: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope; and (f) water, said process comprising: (a) obtaining at least one organic acid; (b) obtaining at least one shine polymer; (c) obtaining at least one thickener; (d) obtaining at least one surfactant; (e) obtaining at least one hydrotrope; (f) obtaining water, and (g) contacting the at least one organic acid, the at least one shine polymer, the at least one thickener, the at least one surfactant, the at least one hydrotrope, and water to obtain the composition.
[0054] In one non-limiting example of the present disclosure, there is provided a process for preparing a composition comprising: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope; (f) at least one colorant; (g) at least one fragrance; (h) at least one antioxidant, and (i) water, said process comprising: (a) contacting the at least one shine polymer with water to obtain a first mixture; (b) contacting the first mixture with the at least one hydrotrope to obtain a second mixture; (c) contacting the second mixture with the at least one surfactant to obtain a third mixture; (d) contacting the third mixture with the at least one thickener to obtain a fourth mixture; (e) contacting the fourth mixture with the at least one colorant to obtain a fifth mixture; (f) contacting the fifth mixture with at least one organic acid to obtain a sixth mixture; (g) contacting the at least one fragrance with the at least one antioxidant to obtain a seventh mixture, and (h) contacting the sixth mixture with the seventh mixture to obtain the composition. [0055] In one non-limiting example of the present disclosure, there is provided a process for preparing a composition comprising: (a) at least one organic acid; (b) at least one shine polymer; (c) at least one thickener; (d) at least one surfactant; (e) at least one hydrotrope; (f) at least one colorant; (g) at least one fragrance; (h) at least one antioxidant, and (i) water, said process comprising: (a) contacting the at least one shine polymer with water to obtain a first mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 0.5 - 3.0 minutes at a stirring speed in the range of 100 - 200 rpm; (b) contacting the first mixture with the at least one hydrotrope to obtain a second mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 0.5 - 3.0 minutes at a stirring speed in the range of 100 -200 rpm; (c) contacting the second mixture with the at least one surfactant to obtain a third mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 0.5 -

3.0 minutes at a stirring speed in the range of 100 - 200 rpm; (d) contacting the third mixture with the at least one thickener to obtain a fourth mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 8.0 - 13.0 minutes at a stirring speed in the range of 100 - 300 rpm; (e) contacting the fourth mixture with the at least one colorant to obtain a fifth mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 0.5 -3.0 minutes at a stirring speed in the range of 100 - 200 rpm; (f) contacting the fifth mixture with at least one organic acid to obtain a sixth mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 8.0 - 13.0 minutes at a stirring speed in the range of 100 -300 rpm; (g) contacting the at least one fragrance and the at least one antioxidant to obtain a seventh mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 0.5 - 3.0 minutes at a stirring speed in the range of 100 - 200 rpm, and (h) contacting the sixth mixture with the seventh mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 3.0 - 10.0 minutes at a stirring speed in the range of 100 - 300 rpm to obtain the composition.
[0056] In one non-limiting example of the present disclosure, there is provided a composition as described herein, wherein the composition is used as a cleaning agent for hard surfaces selected from the group consisting of ceramic surfaces. The composition can be used on well known ceramic surfaces such as porcelain or vitreous china.
[0057] In one non-limiting example of the present disclosure, there is provided a method for use of the composition as described herein, for cleaning hard surfaces selected from the group consisting of ceramics, wherein the method involves the steps of: a) contacting the hard surface with the composition as described herein for a prescribed period of time, and b) rinsing the hard surface with adequate quantity of water to obtain a cleaned surface.
[0058] Although the subject matter has been described in considerable detail with reference to certain preferred implementation thereof, other implementations are possible.
EXAMPLES
[0059] The disclosure will now be illustrated with working examples, which is intended to illustrate the working of disclosure and not intended to take restrictively to imply any limitations on the scope of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the

art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice of the disclosed methods and compositions, the exemplary methods, devices and materials are described herein. It is to be understood that this disclosure is not limited to particular methods, and experimental conditions described, as such methods and conditions may vary. The present disclosure is focused on obtaining a composition for an effective and eco-friendly toilet cleaning formulation with several suitable qualities such as high viscosity and low pH for enhanced cleaning.
[0060] The experiments were designed to study the effect of varying the weight percentages of various ingredients. Accordingly, multiple compositions were prepared which contained ingredients in varying weight percentages. The resulting compositions were tested for their viscosity, homogeneity and judged based on their cleaning ability. Table 2 (Examples 1 – 6) depicts results for some of these compositions.

Table 2
Ingredients Category Example 1
(% w/w) Example 2
(% w/w) Example Example Example Example 3 4 56
(% w/w) (% w/w) (% w/w) (% w/w)
Methane sulfonic acid organic acid 3.0 16.0 6.0 6.0 12.0 6.0
Sodium
cumene
sulfonate
40%
solution hydrotrope 1.4 1.4 1.4 1.4 1.4 1.4
Oleyl amine ethoxylate thickener 2.5 3.5 4.5 5.5 3.5 4.0
Acid blue 80 colorant 0.012 0.012 0.012 0.012 0.012 0.012
Quinoline yellow 70 colorant 0.008 0.008 0.008 0.008 0.008 0.008

Perfume flora fresh 067 IMPD fragrance 0.07 0.07 0.07 0.07 0.07 0.07
Polyquart PRO shine polymer 0.2 0.2 0.2 0.2 0.2 0.2
BHT antioxidant 0.03 0.03 0.03 0.03 0.03 0.03
Lauryl
alcohol
ethoxylate surfactant 0.2 0.2 0.2 0.2 0.2 0.2
Water q.s. to 100 q.s. to 100 q.s. to 100 q.s. to 100 q.s. to 100 q.s. to 100
Results
Viscosity* 560 640 1600 NA 600 360
Phase separation Nil Nil Nil Separated Nil Nil
Observations Inferior Difficult to thicken Inferior Inferior Difficult
to thicken Inferior
[0061] As previously described, mineral acids are toxic and their replacement with organic acids is preferred. Methane sulfonic acid was used in mentioned quantities, while ensuring the pH of the composition was in the range of 0-3. Furthermore, the usage of combination of two colorants provided a pleasant green color to the formulation. Following paragraphs discuss the results in detail.
[0062] Toilet bowls are made of ceramics and are often moist with water, hence the composition viscosity and surface tension are important parameters while studying toilet cleaning compositions. Based on the comparison of examples 1, 5 and 6, compositions with viscosity of

600 cps or less were found to have inferior cleaning ability. The use of hydrotrope (sodium cumene sulfonate) or organic acid beyond the ideal range was found to contribute to this thinning effect. High viscosity is important in ensuring the adhesion of cleaning composition to a surface for the time period required to ensure effective cleaning. However, excessively high viscosity can lead to lumpiness and phase separation, as seen in case of examples 3 and 4. Examples 7, 8, and 9 were found to show ideal range of viscosity and performance. Viscosity in the range of 1000 – 1400 cps was found to be highly effective for the above-mentioned purpose of cleaning toilet bowls. Data provided in Table 2 serve to prove that when compositions contained constituents in weight percentages outside ranges specified in the detailed description above, compositions did not perform well. The addition of oleyl amine ethoxylate (surfactant) beyond a certain limit led to structural disintegration of the composition. This is evident from the inability of example 4 to form a single-phase composition.
[0063] Table 3 lists the compositions that performed admirably as a cleaning formulation. Similar to the Table 2, the effect of variation of ingredient concentrations on parameters such as viscosity, homogeneity and cleaning ability were considered for the tabulation. The viscosity and homogeneity of examples was found to be acceptable in these cases.

Ingredients Category Example 7
(% w/w) Example 8
(% w/w) Example 9
(% w/w)
Methane sulfonic acid organic acid 4.0 6.0 8.6
Sodium cumene sulfonate hydrotrope 1.4 1.4 1.4
Oleyl amine ethoxylate thickener 2.5 2.8 3.0
Acid blue 80 colorant 0.012 0.012 0.012
Quinoline yellow 70 colorant 0.008 0.008 0.008

Perfume flora fresh 067 IMPD fragrance 0.07 0.07 0.07
Polyquart PRO shine polymer 0.2 0.2 0.2
BHT antioxidant 0.03 0.03 0.03
Lauryl alcohol ethoxylate surfactant 0.2 0.2 0.2
Water q.s. to 100 q.s. to 100 q.s. to 100
Results
Viscosity* 1000 1300 1300
Phase separation Nil Nil Nil
Observations Good Good Good
[0064] As can be seen from Tables 2 and 3, excellent results were achieved when ingredients were used within the range as specified in the detailed description. All three examples listed were highly viscous and did not show any phase separation. Furthermore, the cleaning ability of these compositions were found to be good.
Process for preparing the composition
[0065] The composition as mentioned in Tables 2 and 3, were prepared by a convenient method comprising: a) polyquart PRO (at least one shine polymer) was dissolved in water at room temperature (15 - 35 °C) over a period of 0.5 - 3 minutes under a stirring rate of 100 - 200 rpm to obtain a first mixture; b) the first mixture was mixed with sodium cumene sulfonate (at least one hydrotrope) at room temperature over a period of 0.5 - 3 minutes under a stirring rate of 100 - 200 rpm to obtain a second mixture; c) the second mixture was mixed with lauryl alcohol ethoxylate (at least one surfactant) at room temperature over a period of 0.5 - 3 minutes under a stirring rate of 100 - 200 rpm to obtain a third mixture; d) the third mixture was mixed with oleyl amine ethoxylate (at least one thickener) at room temperature over a period of 8 - 13 minutes under a stirring rate of 100 - 300 rpm to obtain a fourth mixture; e) the fourth mixture was mixed with colorants (acid blue 80 and quinoline yellow 70) at room temperature over a period of 0.5 -

3 minutes under a stirring rate of 100 – 200 rpm to obtain a fifth mixture; f) the fifth mixture was mixed with methane sulfonic acid (at least one organic acid) at room temperature over a period of 8 – 13 minutes under a stirring rate of 100 –300 rpm to obtain a sixth mixture; g) the fragrance (flora fresh) and antioxidant (butylated hydroxy toluene) at room temperature over a period of 0.5 – 3 minutes under a stirring rate of 100 – 200 rpm to obtain a seventh mixture, and h) finally the sixth and seventh mixtures were mixed at room temperature over a period of 3 – 10 minutes under a stirring rate of 100 – 300 rpm to obtain the composition.
[0066] Although the subject matter has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the subject matter, will become apparent to persons skilled in the art upon reference to the description of the subject matter. It is therefore contemplated that such modifications can be made without departing from the present subject matter as defined.
Advantages of the present disclosure
[0067] The present disclosure reveals a composition comprising organic acid for cleaning hard surfaces such as toilet bowls. The absence of strong acids such as hydrochloric acid makes the composition non-corrosive to ceramic surfaces and also relatively non-toxic. The ingredients used are also relatively inexpensive and a convenient process for obtaining the composition has also been provided as part of the disclosure.

I/We Claim:
1. A composition comprising:
a) at least one organic acid;
b) at least one shine polymer;
c) at least one thickener;
d) at least one surfactant;
e) at least one hydrotrope, and
f) water.

2. The composition as claimed in claim 1, wherein the composition has a pH in the range of 0-3.
3. The composition as claimed in claim 1, wherein the composition has a viscosity in the range of 1000-1400 cps.
4. The composition as claimed in claim 1, said composition comprises: a) the at least one organic acid is selected from the group consisting of methane sulfonic acid, ethane sulfonic acid, and combinations thereof; b) the at least one shine polymer is selected from the group consisting of Polyquart PRO, Mirapol surf S500, their salts, and combinations thereof; c) the at least one thickener is selected from the group consisting of oleyl amine ethoxylate, xanthan gum, organically modified layered silicates, and combinations thereof; d) the at least one surfactant is selected from the group consisting of lauryl alcohol ethoxylate, nonyl phenol ethoxylate, octyl phenol ethoxylate, secondary alcohol ethoxylate, and combinations thereof; e) the at least one hydrotrope is selected from the group consisting of sodium cumene sulfonate, sodium xylene sulfonate, sodium toluene sulfonate, and combinations thereof; and f) water.
5. The composition as claimed in claim 1, said composition comprises:

a) at least one organic acid having the weight percentage in the range of 4.0 – 15 % with respect to the composition,
b) at least one shine polymer having the weight percentage in the range of 0.1 – 1.0 % with respect to the composition,
c) at least one thickener having the weight percentage in the range of 2.0 – 5.0 % with respect to the composition,

d) at least one surfactant having the weight percentage in the range of 0.1 – 0.5 % with respect to the composition,
e) at least one hydrotrope having the weight percentage in the range of 1.0 – 2.0 % with respect to the composition,
f) water having weight percentage as much as is required to make the composition 100%.

6. The composition as claimed in claim 1, wherein the at least one organic acid to the at least one shine polymer weight ratio is in the range of 1:0.006 – 1:0.25, the at least one organic acid to the at least one thickener weight ratio is in the range of 1:0.13 – 1:1.25, the at least one organic acid to the at least one surfactant weight ratio is in the range of 1:0.006 – 1:0.125 and the at least one organic acid to the at least one hydrotrope weight ratio is in the range of 1:0.06 – 1:0.5.
7. The composition as claimed in any one of the claims 1-6, further comprising at least one excipient selected from the group consisting of colorant, fragrance, antioxidant, and combinations thereof.
8. A process for the preparing the composition as claimed in claim 1, said process comprising: (a) obtaining at least one organic acid; (b) obtaining at least one shine polymer; (c) obtaining at least one thickener; (d) obtaining at least one surfactant; (e) obtaining at least one hydrotrope; (f) obtaining water, and (g) contacting the at least one organic acid, the at least one shine polymer, the at least one thickener, the at least one surfactant, the at least one hydrotrope, and the water to obtain the composition.
9. A process for the preparing the composition as claimed in claim 7, said process comprising: (a) contacting the at least one shine polymer with water to obtain a first mixture;

(b) contacting the first mixture with the at least one hydrotrope to obtain a second mixture;
(c) contacting the second mixture with the at least one surfactant to obtain a third mixture; (d) contacting the third mixture with the at least one thickener to obtain a fourth mixture; (e) contacting the fourth mixture with the at least one colorant to obtain a fifth mixture; (f) contacting the fifth mixture with at least one organic acid to obtain a sixth mixture; (g) contacting the at least one fragrance with the at least one antioxidant to obtain a seventh mixture, and (h) contacting the sixth mixture with the seventh mixture to obtain the composition.

10. The process as claimed in claim 9, wherein the: (a) contacting the at least one shine
polymer with water to obtain a first mixture is carried out at a temperature in the range of 15
- 35 °C for a period in the range of 0.5 - 3.0 minutes at a stirring speed in the range of 100 -
200 rpm; (b) contacting the first mixture with the at least one hydrotrope to obtain a second
mixture is carried out at a temperature in the range of 15 - 35 °C for a period in the range of
0.5-3.0 minutes at a stirring speed in the range of 100 - 200 rpm; (c) contacting the second
mixture with the at least one surfactant to obtain a third mixture is carried out at a
temperature in the range of 15 - 35 °C for a period in the range of 0.5 - 3.0 minutes at a
stirring speed in the range of 100 - 200 rpm; (d) contacting the third mixture with the at least
one thickener to obtain a fourth mixture is carried out at a temperature in the range of 15 - 35
°C for a period in the range of 8.0 - 13.0 minutes at a stirring speed in the range of 100 - 300
rpm; (e) contacting the fourth mixture with the at least one colorant to obtain a fifth mixture
is carried out at a temperature in the range of 15 - 35 °C for a period in the range of 0.5 - 3.0
minutes at a stirring speed in the range of 100 - 200 rpm; (f) contacting the fifth mixture with
at least one organic acid to obtain a sixth mixture is carried out at a temperature in the range
of 15 - 35 °Cfor a period in the range of 8.0 - 13.0 minutes at a stirring speed in the range of
100 - 300 rpm; (g) contacting the at least one fragrance and the at least one antioxidant to
obtain a seventh mixture is carried out at a temperature in the range of 15 - 35 °C for a period
in the range of 0.5 - 3.0 minutes at a stirring speed in the range of 100 - 200 rpm, and (h)
contacting the sixth mixture with the seventh mixture is carried out at a temperature in the
range of 15 - 35 °C for a period in the range of 3.0 - 10.0 minutes at a stirring speed in the
range of 100 - 300 rpm to obtain the composition.
11. The composition as claimed in any one of the claims 1-7, wherein the composition is
used as a cleaning agent for hard surfaces selected from the group consisting of ceramic
surfaces.