 The present disclosure relates to the field of optical fibre cables and,
in particular, relates to a thermal resistant water blocking tape.
5
BACKGROUND
 Optical fibre cables have secured an important position in building
optical network of modern communication systems across the world. In
10 addition, internal components of the optical fibre cables are made up of nonfire retardant or combustible materials. For example, internal components of
the optical fibre cables include water blocking tapes, buffer tubes and the like.
Further, use of the non-fire retardant materials in the internal components of
the optical fibre cables impact fire performance of the optical fibre cables in
15 event of fire. Conventionally, outer jacket of the optical fibre cables are
manufactured using fire retardant material to provide fire resistance to the
optical fibre cables. However, use of the fire resistant materials in outer jacket
of the optical fibre cables resist fire for limited amount of time. Moreover, use
of the fire resistant materials in outer jacket of the optical fibre cables reduce
20 other properties of the optical fibre cables such as mechanical and thermal
properties. Also, the fire resistant material is used for jacketing and buffering
to make the optical fibre cables fire resistant. However, mechanical properties
of the optical fibre cables are reduced due to high filer loading in polymer
materials of the optical fibre cables. Also, the fire resistant material reacts
25 with fire easily and increases fire propagation. Also, the fire resistant material
increases heat release and toxic gases evaluation in event of fire.
 In light of the above stated drawbacks, there is a need for an
improved fire retardant material.
30
3/19
OBJECT OF THE DISCLOSURE
 A primary object of the present disclosure is to provide an optical
fibre cable.
5
SUMMARY
 In an aspect, the present disclosure provides a thermal resistant water
10 blocking tape for use in an optical fibre cable. The thermal resistant water
blocking tape includes a water blocking tape. The water blocking tape is
resistant to water penetration. The water blocking tape is defined by a top
surface and a bottom surface. In addition, the water blocking tape has an
intumescent material that reduces transmission of thermal radiations across the
15 thermal resistant water blocking tape at elevated temperature.
 The intumescent material may be coated on the water blocking tape.
 The intumescent material may produce insulating carbonaceous foam
20 at elevated temperature. The insulating carbonaceous foam may reduce
transmission of thermal radiations across the thermal resistant water blocking
tape at the elevated temperature.
 The elevated temperature may be in range of 80
o C to 600o C.
25
 The intumescent material, when exposed to the elevated temperature,
may swell from a first thickness to a second thickness producing the insulating
carbonaceous foam. The first thickness is greater than equal to the second
thickness.
30
4/19
 The intumescent material may react at the elevated temperature
forming a char layer on the surface of the water blocking tape.
 The intumescent material is coated on the water blocking tape such
5 that the coating may be in range of 100 microns to 300 microns. The
intumescent material may be coated on a non-woven cloth that has a thickness
in a range of 300 microns to 500 microns.
 The water blocking tape may be made of one or more of a non-woven
10 fabric and a glass based fabric.
 The intumescent material may be water based intumescent paint. The
water based intumescent paint may have water content between 50-60% and
remaining solid content.
15
 The intumescent material may made of one or more of a compound
selected from a group. The group consists of pentaerythritol (PER) or
dipentaerythritol, (DIPER), Ammonium polyphosphate, Aluminium tri
hydroxide (ATH), Magnesium hydroxide, Nano materials (clay nanoparticles),
20 Tio2, and one or more Coupling agents, Binders, Dispersing agent and
Melamine.
 The water blocking tape may include a top layer, a bottom layer and
super absorbent powder. The super absorbent powder is sandwiched between
25 the top layer and the bottom layer.
 The intumescent material may be coated on at least one of the top
surface and the bottom surface of the water blocking tape.
30 STATEMENT OF THE DISCLOSURE
5/19
 The present disclosure provides a thermal resistant water blocking
tape for use in an optical fibre cable. The thermal resistant water blocking
tape includes a water blocking tape. The water blocking tape is resistant to
water penetration. The water blocking tape is defined by a top surface and a
5 bottom surface. In addition, the water blocking tape has an intumescent
material that reduces transmission of thermal radiations across the thermal
resistant water blocking tape at elevated temperature.
BRIEF DESCRIPTION OF FIGURES
10
 Having thus described the disclosure in general terms, reference will
now be made to the accompanying figures, wherein:
 FIG. 1 illustrates a cross sectional view of a thermal resistant water
15 blocking tape; and
 FIG. 2 illustrates a cross sectional view of a fire resistant optical fibre
cable.
20  It should be noted that the accompanying figures are intended to
present illustrations of few exemplary embodiments of the present disclosure.
These figures are not intended to limit the scope of the present disclosure. It
should also be noted that accompanying figures are not necessarily drawn to
scale.
25
DETAILED DESCRIPTION
 Reference will now be made in detail to selected embodiments of the
present disclosure in conjunction with accompanying figures. The
30 embodiments described herein are not intended to limit the scope of the
6/19
disclosure, and the present disclosure should not be construed as limited to the
embodiments described. This disclosure may be embodied in different forms
without departing from the scope and spirit of the disclosure. It should be
understood that the accompanying figures are intended and provided to
5 illustrate embodiments of the disclosure described below and are not
necessarily drawn to scale. In the drawings, like numbers refer to like
elements throughout, and thicknesses and dimensions of some components
may be exaggerated for providing better clarity and ease of understanding.
10  It should be noted that the terms "first", "second", and the like, herein
do not denote any order, ranking, quantity, or importance, but rather are used
to distinguish one element from another. Further, the terms "a" and "an"
herein do not denote a limitation of quantity, but rather denote the presence of
at least one of the referenced item.
15
 FIG. 1 illustrates a cross sectional view of a thermal resistant water
blocking tape 100. The thermal resistant water blocking tape 100 is a fire
resistant water blocking tape. The thermal resistant water blocking tape 100
shows resistance against fire and possesses water blocking capabilities. The
20 thermal resistant water blocking tape 100 includes a water blocking tape 102.
In addition, the thermal resistant water blocking tape 100 includes an
intumescent material 110 on the water blocking tape 102. The water blocking
tape 102 is resistant to water penetration.
25  The water blocking tape 102 is defined by a top surface and a bottom
surface. The top surface may be towards a sheath of a cable and the bottom
surface is towards a core of the cable. The water blocking tape 102 may
include a top layer 104, a bottom layer 106 and super absorbent powder 108.
The super absorbent powder 108 is sandwiched between the top layer 104 and
30 the bottom layer 106. The top layer 104 and the bottom layer 106 correspond
to two layers of tapes of the water blocking tape 102. The structure of the
7/19
water blocking tape 102 may include any currently available water blocking
tape over which the intumescent material 110 can be applied. The
intumescent material 110 may be coated on at least one of the top surface and
the bottom surface of the water blocking tape 102.The top layer 104 and the
5 bottom layer 106 may enclose the super absorbent powder 108.
 The super absorbent powder 108 may have capability to absorb and
retain extremely high volume of liquids. In an example, liquids include water.
The top layer 104 and the bottom layer 106 may have one or more properties.
10 The one or more properties include stretch, absorbency, cushioning and as a
barrier.
 Each of the top layer 104 and the bottom layer 106 may have a first
side and a second side. The top layer 104 has the first side and the second
15 side. In addition, the bottom layer 106 has the first side and the second side.
Further, the first side of the top layer 104 is outer side of the top layer 104.
Furthermore, the second side of the top layer 104 is inner side of the top layer
104. Moreover, the first side of the bottom layer 106 is outer side of the
bottom layer 106. Also, the second side of the bottom layer 106 is inner side
20 of the bottom layer 106.
 In addition, the first side of the top layer 104 or the bottom layer 106
may be coated with the intumescent material 110. The first side of the top
layer 104 may be coated with the intumescent material 110. The first side of
25 the bottom layer 106 may be coated with the intumescent material 110.
 The first side of the top layer 104 is applied with the intumescent
material 110. In addition, the second side of the top layer 104 may face the
super absorbent powder 108. The first side of the bottom layer 106 may be
30 applied with the intumescent material 110. Further, the second side of the
8/19
bottom layer 106 may face the super absorbent powder 108. The water
blocking tape 102 may be made of one or more of a non-woven fabric and a
glass based fabric.
5  The thermal resistant water blocking tape 100 may be positioned
inside a plurality of buffer tubes. In addition, buffer tube is an encasement
tube used to encapsulate number of optical fibres or an optical fibre ribbon
stack. In addition, buffer tube is used in an optical fibre cable to provide
mechanical isolation and protection from physical damages. The plurality of
10 buffer tubes may include the optical fibre ribbon stack or a plurality of optical
fibres.
 The optical fibre ribbon stack is a bundle of a plurality of optical fibre
ribbons arranged together. The optical fibre ribbon may include a number of
15 optical fibres arranged together within a matrix material. In addition, multiple
individual optical fibre ribbons are stacked into bundle to form the optical
fibre ribbon stack. Further, optical fibre refers to a medium associated with
transmission of information over long distances in the form of light pulses.
Furthermore, optical fibre uses light to transmit voice and data
20 communications over long distances.
 The thermal resistant water blocking tape 100 may surround the
optical fibre ribbon stack. The thermal resistant water blocking tape 100 may
surround the plurality of optical fibres. The optical fibre ribbon stack or the
25 plurality of optical fibres is placed inside a buffer tube. The intumescent
material 110 may be applied on a non-woven cloth. The intumescent material
110 may be applied on a glass cloth.
 The intumescent material 110 may reduce transmission of thermal
30 radiations across the thermal resistant water blocking tape 100 at elevated
9/19
temperature. The intumescent material 110 may produce insulating
carbonaceous foam at the elevated temperature. The intumescent material 110
is coated on the water blocking tape 102. The insulating carbonaceous foam
may reduce transmission of thermal radiations across the thermal resistant
5 water blocking tape 100 at the elevated temperature. The elevated
temperature may be in the range of 80
o C to 600o C. The insulating
carbonaceous foam may reduce transmission of thermal radiations across the
thermal resistant water blocking tape 100. The intumescent material 110 may
have a first thickness. The first thickness corresponds to a thickness before
10 the intumescent material 110 comes in contact with fire. The intumescent
material 110 when exposed to the elevated temperature, may swell from the
first thickness to a second thickness to produce the insulating carbonaceous
foam. The first thickness may be greater than equal to the second thickness.
The intumescent material 110 with the first thickness may react under
15 influence of fire and swells in a controlled manner on the water blocking tape
102. The first thickness of the intumescent material 110 may change to the
second thickness after swelling. The intumescent material 110 may produce
insulating carbonaceous foam layer around the cable after reacting and
swelling. The insulating carbonaceous foam may protect a substrate from
20 effects of the fire to enter inside an optical fibre cable.
 The intumescent material 110 may react at the elevated temperature
to form a char layer on the surface of the water blocking tape 102. The
intumescent material 110 may react under the influence of fire and forms the
25 char layer on the surface of the water blocking tape 102. The char layer may
produce an insulating carbonaceous char that protects a substrate from
penetration of fire inside the optical fibre cable. The intumescent material 110
may produce char which is a poor conductor of heat and retards heat transfer.
The insulating carbonaceous foam may be microporous carbonaceous foam
30 formed by a chemical reaction between multiple compounds used for the
intumescent material 110. The intumescent material 110 may be made of at
10/19
least one compound selected from a group. The group consists of
pentaerythritol (PER) or dipentaerythritol, (DIPER), Ammonium
polyphosphate, Aluminium tri hydroxide (ATH), Magnesium hydroxide, Nano
materials (clay nanoparticles), Tio2, and one or more Coupling agents,
5 Binders, Dispersing agent and Melamine.
 The intumescent material 110 may be coated on the water blocking
tape 102 such that the coating has a thickness of 100 microns to 300 microns.
The thickness of the intumescent material 110 on the water blocking tape 102
10 may vary. The intumescent material 110 may have a larger thickness which
will provide more fire protection. However, the larger thickness of the
intumescent material 110 may lead to degradation in water blocking
properties. The intumescent material 110 may be applied on a non-woven
cloth. The intumescent material 110 coated on the non-woven cloth may have
15 a thickness in a range of about 300 microns to 500 microns to provide better
fire resistance. The thickness of the intumescent material 110 on the nonwoven cloth may vary.
 The intumescent material 110 may be water based intumescent paint.
20 The water based intumescent paint may have water content between 50 -60%
and remaining solid content between. The intumescent material 110 applied
on the water blocking tape 102 may be in an outward direction towards sheath
of an optical fibre cable and a layer of the water blocking tape 102 without the
intumescent material 110 may be in an inward direction towards core of the
25 optical fibre cable.
 FIG. 2 illustrates a cross sectional view of a fire resistant optical fibre
cable 200. The fire resistant optical fibre cable 200 is a fire retardant optical
fibre cable. The fire resistant optical fibre cable 200 may include one or more
30 layer of buffer tubes. In addition, the fire resistant optical fibre cable 200
includes the thermal resistant water blocking tape 100 (as shown in FIG. 1),
11/19
an optical fibre ribbon stack 204, one or more water swellable yarns 206, a
mica tape 208, and a sheath 210.
 The one or more layer of buffer tubes may be positioned inside a core
5 of the fire resistant optical fibre cable 200. In addition, buffer tube is an
encasement tube used to encapsulate a plurality of optical fibres or the optical
fibre ribbon stack 204. Further, the buffer tube is used in the fire resistant
optical fibre cable 200 to provide mechanical isolation and protection from
physical damages. The plurality of buffer tubes 202 may be used in any type
10 of optical fibre cable with any structure. Furthermore, each of the plurality of
buffer tubes 202 may include the optical fibre ribbon stack 204.
 In addition, the optical fibre ribbon stack 204 may include the
plurality of optical fibre ribbons. Number of the plurality of optical fibre
15 ribbons in the optical fibre ribbon stack 204 is 12. Number of the plurality of
optical fibre ribbons in the optical fibre ribbon stack 204 may vary. Further,
each of the plurality of optical fibre ribbons may include the plurality of
optical fibres in the range of 8 to 24.
20  The optical fibre ribbon stack 204 is a bundle of a plurality of optical
fibre ribbons arranged together. The optical fibre ribbon includes a number of
optical fibres arranged together within a matrix material. In addition, multiple
individual optical fibre ribbons may be stacked into bundle to form the optical
fibre ribbon stack 204. Each of the plurality of optical fibre ribbons may
25 include the plurality of optical fibres.
 The fire resistant optical fibre cable 200 includes one or more layer of
buffer tubes. The one or more layer of buffer tubes may include a first layer
of buffer tubes and a second layer of buffer tubes (as shown in FIG. 2). The
30 first layer of buffer tubes and the second layer of buffer tubes may include a
12/19
plurality of buffer tubes 202. The one or more layer of buffer tubes may be
arranged concentrically inside the core of the fire resistant optical fibre cable
200. The second layer of buffer tubes may surround the first layer of buffer
tubes. The first layer of buffer tubes and the second layer of buffer tubes
5 include the plurality of buffer tubes 202.
 The first layer of buffer tubes is inner layer of the one or more layer
of buffer tubes. In addition, the second layer of buffer tubes is outer layer of
the one or more layer of buffer tubes. Each buffer tube in the first layer of
10 buffer tubes and the second layer of buffer tubes is circular in shape. Each
buffer tube in the first layer of buffer tubes and the second layer of buffer
tubes is of any suitable shape. Each of the plurality of buffer tubes 202 is
made up of fire retardant material. Each of the plurality of buffer tubes 202 is
made up of LSZH material. Each of the plurality of buffer tubes 202 is made
15 up of any suitable material of the like.
 Number of the plurality of buffer tubes 202 inside the fire resistant
optical fibre cable 200 may be 12. Number of the plurality of buffer tubes 202
inside the fire resistant optical fibre cable 200 may vary. Number of the
20 plurality of optical fibre ribbons inside each of the plurality of buffer tubes
202 may be 12. Number of the plurality of optical fibre ribbons inside each of
the plurality of buffer tubes 202 may vary.
 Number of the plurality of buffer tubes 202 in the first layer of buffer
25 tubes may be 3. Number of the plurality of buffer tubes 202 in the first layer
of buffer tubes may vary. Number of the plurality of buffer tubes 202 in the
second layer of buffer tubes may be 9. Number of the plurality of buffer tubes
202 in the second layer of buffer tubes may vary.
13/19
 The fire resistant optical fibre cable 200 includes the thermal resistant
water blocking tape 100. The thermal resistant water blocking tape 100 shows
resistance against fire and possesses water blocking capabilities. The thermal
resistant water blocking tape 100 includes the water blocking tape 102. In
5 addition, the thermal resistant water blocking tape 100 includes the
intumescent material 110 on the water blocking tape 102. The water blocking
tape 102 is resistant to water penetration. The water blocking tape 102 is
defined by the top surface and the bottom surface. The top surface may be
towards a sheath of a cable and the bottom surface is towards a core of the
10 cable. The water blocking tape 102 may include the top layer 104, the bottom
layer 106 and the super absorbent powder 108. The super absorbent powder
108 may be sandwiched between the top layer 104 and the bottom layer 106.
The top layer 104 and the bottom layer 106 correspond to the two layers of
tapes of the water blocking tape 102. The structure of the water blocking tape
15 102 may include any currently available water blocking tape over which the
intumescent material 110 can be applied. The intumescent material 110 may
be coated on at least one of the top surface and the bottom surface of the water
blocking tape 102. The top layer 104 and the bottom layer 106 may enclose
the super absorbent powder 108.
20
 Each of the top layer 104 and the bottom layer 106 may have the first
side and the second side. The top layer 104 has the first side and the second
side. In addition, the bottom layer 106 has the first side and the second side.
Further, the first side of the top layer 104 is outer side of the top layer 104.
25 Furthermore, the second side of the top layer 104 is inner side of the top layer
104. Moreover, the first side of the bottom layer 106 is outer side of the
bottom layer 106. Also, the second side of the bottom layer 106 is inner side
of the bottom layer 106 (as explained above in the detailed description of FIG.
1).
30
14/19
 The thermal resistant water blocking tape 100 facilitates in low fire
propagation through the fire resistant optical fibre cable 200. In addition, the
thermal resistant water blocking tape 100 may facilitate low release of smoke
and increases performance of the fire resistant optical fibre cables 200 in event
5 of fire. Further, the thermal resistant water blocking tape 100 may not allow
fire to penetrate into internal components (such as the plurality of buffer tubes
202) of the fire resistant optical fibre cable 200 in event of fire. The thermal
resistant water blocking tape 100 creates a layer when any surface of any
element is affected by fire which does not let the fire to penetrate to other
10 layers. Furthermore, the thermal resistant water blocking tape 100 is designed
to prevent water ingression inside the fire resistant optical fibre cable 200.
Moreover, the thermal resistant water blocking tape 100 is used to prevent
ingression of water in the plurality of buffer tubes 202. The intumescent
material 110 applied on the water blocking tape 102 may be in an outward
15 direction towards the sheath 210 of the optical fibre cable 200 and a layer of
the water blocking tape 102 without the intumescent material 110 is in an
inward direction towards core of the optical fibre cable 200.
 The fire resistant optical fibre cable 200 includes the one or more
20 water swellable yarns 206. The one or more water swellable yarns 206 is
positioned inside the core of the fire resistant optical fibre cable 200. In
addition, the one or more water swellable yarns 206 are positioned around the
plurality of buffer tubes 202 of the first layer of buffer tubes and the second
layer of buffer tubes. Number of the one or more water swellable yarns 206 is
25 12. Number of the one or more water swellable yarns 206 in the first layer of
buffer tubes 204 is 6. Number of the one or more water swellable yarns 206
in the first layer of buffer tubes may vary.
 Number of the one or more water swellable yarns 206 in the second
30 layer of buffer tubes is 18. Number of the one or more water swellable yarns
206 in the second layer of buffer tubes 206 may vary. The fire resistant
15/19
optical fibre cable 200 may include the mica tape 208. The mica tape 208
may surround the one or more layer of buffer tubes. The mica tape 208 acts as
fire barrier.
5  The fire resistant optical fibre cable 200 includes the sheath 210. In
addition, the sheath 210 may be used to provide inherent ability to the fire
resistant optical fibre cable 200 to resist crushes, kinks and tensile stress. The
sheath 210 is fire retardant. The sheath 210 may be made up of fire retardant
material. The sheath 210 may be made up of LSZH (low smoke zero halogen)
10 material. The sheath 210 may be made up of any suitable material of the like.
The first side of the top layer 104 or the bottom layer 106 with the
intumescent material 110 may face the sheath 210 of the fire resistant optical
fibre cable 200. The second side of the top layer 104 or the bottom layer 106
of the thermal resistant water blocking tape 100 without the intumescent
15 material 110 may face the core of the fire resistant optical fibre cable 200.
 The fire resistant optical fibre cable 200 includes the one or more
ripcords 212. A ripcord is a parallel cord that is positioned under jacket of
optical fibre cable for purpose of facilitating jacket removal. Number of the
20 one or more ripcords 212 in the fire resistant optical fibre cable 200 is two.
Number of the one or more ripcords 212 in the optical fibre cable 200 may
vary.
 The thermal resistant water blocking tape 100 may be positioned
25 inside the plurality of buffer tubes 202. The thermal resistant water blocking
tape 100 may surround the optical fibre ribbon stack 204 or the plurality of
optical fibres. The intumescent material 110 may be applied on inner side of
the sheath 210 of the fire resistant optical fibre cable 200. The intumescent
material 110 is applied on the plurality of buffer tubes 202 of the fire resistant
30 optical fibre cable 200. The intumescent material 110 may be applied on inner
16/19
side of the plurality of buffer tubes 202 of the fire resistant optical fibre cable
200. The intumescent material 110 may be filled in available space between
the plurality of buffer tubes 202 and the sheath 210 of the fire resistant optical
fibre cable 200.
5
 The intumescent material 110 may be made up of water based nontoxic material. The intumescent material 110 may be made up of low volatile
intumescent coating. The intumescent material 110 may be made up of fire
retardant coating. The intumescent material 110 may be made up of any other
10 suitable material of the like.
 The intumescent material 110 may be applied on internal components
of the fire resistant optical fibre cable 200. The intumescent material 110 may
be sprayed on internal components of the fire resistant optical fibre cable 200.
15 The intumescent material 110 may be coated on internal components of the
fire resistant optical fibre cable 200.
 The foregoing descriptions of pre-defined embodiments of the present
technology have been presented for purposes of illustration and description.
20 They are not intended to be exhaustive or to limit the present technology to the
precise forms disclosed, and obviously many modifications and variations are
possible in light of the above teaching. The embodiments were chosen and
described in order to best explain the principles of the present technology and
its practical application, to thereby enable others skilled in the art to best
25 utilize the present technology and various embodiments with various
modifications as are suited to the particular use contemplated. It is understood
that various omissions and substitutions of equivalents are contemplated as
circumstance may suggest or render expedient, but such are intended to cover
the application or implementation.

We claim:

A thermal resistant water blocking tape (100) for use in an optical fibre
cable, the thermal resistant water blocking tape (100) comprising:
a water blocking tape (102) that is resistant to water penetration, wherein
the water blocking tape (102) is defined by a top surface and a bottom surface,
10 wherein the water blocking tape (102) has an intumescent material (110) that
reduces transmission of thermal radiations across the thermal resistant water
blocking tape (100) at elevated temperature.
2. The thermal resistant water blocking tape (100) as claimed in claim 1, the
15 intumescent material (110) is coated on the water blocking tape (102).
3. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the intumescent material (110) produces insulating carbonaceous foam at
elevated temperature, wherein the insulating carbonaceous foam reduces
20 transmission of thermal radiations across the thermal resistant water blocking tape
(100) at elevated temperature.
4. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the elevated temperature is in the range of 80
o C to 600o C.
25
5. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the intumescent material (110), when exposed to the elevated
temperature, swells from a first thickness to a second thickness producing the
insulating carbonaceous foam, wherein the first thickness is greater than equal to
30 the second thickness.
18/19
6. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the intumescent material (110) is coated on the water blocking tape (102)
such that the coating has a thickness of 100 microns to 300 microns, wherein the
intumescent material (110) is coated on a non-woven cloth has a thickness in a
5 range of 300 microns to 500 microns.
7. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the water blocking tape (102) is made of one or more of a non-woven
fabric and a glass based fabric.
10
8. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the intumescent material (110) is a water based intumescent paint,
wherein the water based intumescent paint has water content between 50-60% and
remaining solid content.
15
9. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the intumescent material (110) is made of one or more of a compound
selected from a group consisting of pentaerythritol (PER) or dipentaerythritol,
(DIPER), Ammonium polyphosphate, Aluminium tri hydroxide (ATH),
20 Magnesium hydroxide, Nano materials (clay nanoparticles), Tio2, and one or
more Coupling agents, Binders, Dispersing agent and Melamine.
10. The thermal resistant water blocking tape (100) as claimed in claim 1,
wherein the water blocking tape (102) comprising:
25 a. a top layer (104);
b. a bottom layer (106); and
c. super absorbent powder (108) sandwiched between the top layer
(104) and the bottom layer (106).