Description:FIELD OF THE INVENTION
This invention relates to a composition of sport ball and process for preparation thereof. Particularly, the invention relates to a composition of sport ball and process for manufacturing sport ball for enhancing player safety while maintaining high performance of ball, making it suitable for players of all ages and professional players.
BACKGROUND OF THE INVENTION
Sports balls are essential equipment used in various sports, both for casual play and professional competitions. Players rely on these balls. Players play casual matches, practice, and improve their skills for high-level games. Traditionally, sports balls are made from materials like leather, rubber, and plastic. These materials are chosen for their ability to withstand the heavy and regular use while providing a certain level of performance, such as bounce, grip, and durability. However, despite their intended durability, balls made from these materials often face issues over time. As these balls are used more frequently, they begin to lose their shape, which can directly affect their bounce and overall effectiveness. There’s also a lack of consistency in how well the balls perform with some variations in their bounce and durability from one ball to another. These undesirable bounces of the ball could lead to injury to a player. These issues can affect the performance of players and overall experience during play. Thus, the composition of the new sports ball and manufacturing techniques ensures enhanced durability and performance of the ball.
US patent application no. US20070105669A1, discloses about an inflatable sports ball comprising: a cover defining a circumference and a seam configuration including a plurality of non-crossing seams extending across at least a portion of the cover and each seam extending a distance across the cover that is at least 50% of one-half of the circumference, wherein at least one seam of the plurality of seams includes a first seam segment exhibiting a curvature about a first center point on a first side of the seam and a second seam segment exhibiting a curvature about a second center point on a second side of the seam segment, opposite the first side.
US patent application no. US20160144243A1, discloses about a sports ball, comprising: an outer shell comprising cross-linked closed-cell foam, said outer shell being a hollow and substantially spherical body that surrounds and defines an interior cavity; and an inner core having a substantially spherical shape, said inner core being housed within the interior cavity of said outer shell.
US patent application no. US20160144243A1, discloses about a sports ball comprising: a ball cover, and, disposed within the ball cover, a reinforced inflatable carcass comprising (a) an inflatable bladder of resilient material; (b); a web layer of thread disposed about an outer surface of said bladder; and; (c) an outer layer of resilient material adhered upon said web layer.
US patent application no. US20160144243A1, discloses about in a game ball comprised of a polyurethane foam sphere, the improvement comprising using as the polyurethane foam sphere a foam manufactured from a formulation comprising a liquid diene polymer having a molecular weight of about 500 to 5000 and 1.8 to 3 hydroxyl groups per molecule; a polyfunctional isocyanate containing 2 to 2.7 isocyanate groups per molecule; water; a first catalyst selected from dialkyl stannic diester, stannous diesters and mixtures of these; a second catalyst selected from tertiary amines; a first surfactant which is a non-hydrolyzable silicone-polyether copolymer and a second surfactant comprising at least one dialkylpolysiloxane.
There are disadvantages associated with the known sports ball. One of the disadvantages is that conventional balls are not resistant to moisture and water.
Another disadvantage associated with the prior art is that the known sports balls are less durable and very expensive.
Yet another disadvantage associated with the prior art is that the known sports balls have hard surfaces which causes serious injuries.
OBJECTS OF THE INVENTION
Therefore, an object of the present invention is to provide a composition of sports ball and a process to manufacturing thereof which obviates the disadvantages associated with the prior art.
Another object of the present invention is to provide a composition of sport ball and a process for preparation thereof which is resistant to water and moisture.
Yet another object of the present invention is to provide a composition of sport ball and a process for preparation thereof which have soft surface which prevent players from injuries.
Still another object of the present invention is to provide a composition of sport ball and a process for preparation thereof which is more durable.
Still object of the present invention is to provide a composition of sport ball and a process for preparation thereof which is cost-effective.
SUMMARY OF THE INVENTION
According to the invention, there is provided a composition of sport ball comprising 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU).
Further, according to the invention, there is provided a process for preparation of sport ball comprising, mixing 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU) with each other with the help of a mixer at 1500 – 3000 RPM for 10 – 30 minutes; blowing the mixture in a pressure-controlled chamber or an autoclave for 22 – 26 hours to obtain a synergetic material; injecting the synergetic material into a mould to form a ball; cooking the mould in water steam at 160 – 200 oC for 3 – 5 minutes and subsequently in cold water at (-5) – (-20) oC to obtain a durable sport ball to play in various format of sports.
BRIEF DESCRIPTION OF THE DRAWINGS
A composition of sport ball and process for preparation thereof, according to a preferred embodiment of the present invention, is herein described and illustrated in the accompanying drawings, wherein:
Figure 1 – illustrates multiple view of a prepared ball,
DETAILED DESCRIPTION OF THE INVENTION
A composition of sport ball and process for preparation thereof is herein described with numerous specific details so as to provide a complete understanding of the invention. However these specific details are exemplary details and should not be treated as the limitation to the scope of the invention. Throughout this specification the word “comprise” or variations such as “comprises or comprising”, will be understood to imply the inclusions of a stated element, integer or step, or group of elements, integers or steps, but not the exclusions of any other element, integer or step or group of elements, integers or steps.
A composition of sport ball comprises 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU).
In one embodiment, the polyurethane (PU) is, for example, 30-60 kg m/3 Rigid PU grades and the expanded thermoplastic polyurethane (ETPU) is of, for example, 100 – 140 grades of the expanded thermoplastic polyurethane (ETPU).
A process for preparation of sport ball comprises as following process steps. 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU) are mixed with each other with the help of a mixer, at 15000 – 3000 RPM for 15 – 30 minutes. The said mixture is blown in a pressure-controlled chamber or an autoclave for 22 – 26 hours to obtain a synergetic material. Then the obtained material is injected into mould of ball with the help of sucking pump. After that, the injected materials along with mould is cooked in a hot steam water at 160 – 200 oC for 3 - 5 minutes and in a cold water at (-5) – (-20) oC to obtain a durable, and suitable sport ball to play in various format of sports.
In one embodiment, the cooking process is performed in a 2 – 4 bars air pressure so as to mold the ball in a perfect shape.
The present invented sport balls were manufactured in multiple weight configurations such as 45 – 55 grams for children, 70 – 90 grams for youth, 90 – 110 grams for women, 110 – 130 grams for men, and 130 – 155 grams for professional athletes/players.
EXAMPLE – 1
14-gram polyurethane (PU), and 86 gram expanded thermoplastic polyurethane (ETPU) were used to prepare a 100 grams sport ball suitable for the women.
14 gram polyurethane (PU), and 86 gram expanded thermoplastic polyurethane (ETPU) were mixed with each other with the help of a mechanical mixer at 2000 RPM for 18 minutes. The said mixture was blown in a pressure-controlled chamber for 24 hours to obtain a synergetic material. Then the obtained material was injected into mould of ball with the help of sucking pump. After that, the injected materials along with mould was cooked in a hot steam water at 180 oC for 4 minutes and in a cold water at (-10) oC to obtain a durable, and suitable sport ball for the women.
EXAMPLE – 2
20-gram polyurethane (PU), and 100 gram expanded thermoplastic polyurethane (ETPU) are used to prepare a 120 grams sport ball suitable for the men.
EXAMPLE – 3
25-gram polyurethane (PU), and 115 gram expanded thermoplastic polyurethane (ETPU) are used to prepare a 140 grams sport ball suitable for the professional athletes/players.
In one embodiment, the ball’s design enables it to exhibit aerodynamic properties that allow for a curved flight path, enhancing its usability in various sports scenarios.
The sports ball designed to provide a safer alternative to traditional sports balls which made from a durable composition. The used material is tear-resistant, the ball offers multiple weight options suitable for different age groups and skill levels. The ball’s ourter surface is soft that minimizes the risk of injury while maintaining performance characteristics comparable to traditional balls.
Certain features of the invention have been described with reference to the example embodiments. However, the description is not intended to be construed in a limiting sense. Various modifications of the example embodiments as well as other embodiments of the invention, which are apparent to the persons skilled in the art to which the invention pertains, are deemed to lie within the spirit and scope of the invention.
, Claims:FIELD OF THE INVENTION
This invention relates to a composition of sport ball and process for preparation thereof. Particularly, the invention relates to a composition of sport ball and process for manufacturing sport ball for enhancing player safety while maintaining high performance of ball, making it suitable for players of all ages and professional players.
BACKGROUND OF THE INVENTION
Sports balls are essential equipment used in various sports, both for casual play and professional competitions. Players rely on these balls. Players play casual matches, practice, and improve their skills for high-level games. Traditionally, sports balls are made from materials like leather, rubber, and plastic. These materials are chosen for their ability to withstand the heavy and regular use while providing a certain level of performance, such as bounce, grip, and durability. However, despite their intended durability, balls made from these materials often face issues over time. As these balls are used more frequently, they begin to lose their shape, which can directly affect their bounce and overall effectiveness. There’s also a lack of consistency in how well the balls perform with some variations in their bounce and durability from one ball to another. These undesirable bounces of the ball could lead to injury to a player. These issues can affect the performance of players and overall experience during play. Thus, the composition of the new sports ball and manufacturing techniques ensures enhanced durability and performance of the ball.
US patent application no. US20070105669A1, discloses about an inflatable sports ball comprising: a cover defining a circumference and a seam configuration including a plurality of non-crossing seams extending across at least a portion of the cover and each seam extending a distance across the cover that is at least 50% of one-half of the circumference, wherein at least one seam of the plurality of seams includes a first seam segment exhibiting a curvature about a first center point on a first side of the seam and a second seam segment exhibiting a curvature about a second center point on a second side of the seam segment, opposite the first side.
US patent application no. US20160144243A1, discloses about a sports ball, comprising: an outer shell comprising cross-linked closed-cell foam, said outer shell being a hollow and substantially spherical body that surrounds and defines an interior cavity; and an inner core having a substantially spherical shape, said inner core being housed within the interior cavity of said outer shell.
US patent application no. US20160144243A1, discloses about a sports ball comprising: a ball cover, and, disposed within the ball cover, a reinforced inflatable carcass comprising (a) an inflatable bladder of resilient material; (b); a web layer of thread disposed about an outer surface of said bladder; and; (c) an outer layer of resilient material adhered upon said web layer.
US patent application no. US20160144243A1, discloses about in a game ball comprised of a polyurethane foam sphere, the improvement comprising using as the polyurethane foam sphere a foam manufactured from a formulation comprising a liquid diene polymer having a molecular weight of about 500 to 5000 and 1.8 to 3 hydroxyl groups per molecule; a polyfunctional isocyanate containing 2 to 2.7 isocyanate groups per molecule; water; a first catalyst selected from dialkyl stannic diester, stannous diesters and mixtures of these; a second catalyst selected from tertiary amines; a first surfactant which is a non-hydrolyzable silicone-polyether copolymer and a second surfactant comprising at least one dialkylpolysiloxane.
There are disadvantages associated with the known sports ball. One of the disadvantages is that conventional balls are not resistant to moisture and water.
Another disadvantage associated with the prior art is that the known sports balls are less durable and very expensive.
Yet another disadvantage associated with the prior art is that the known sports balls have hard surfaces which causes serious injuries.
OBJECTS OF THE INVENTION
Therefore, an object of the present invention is to provide a composition of sports ball and a process to manufacturing thereof which obviates the disadvantages associated with the prior art.
Another object of the present invention is to provide a composition of sport ball and a process for preparation thereof which is resistant to water and moisture.
Yet another object of the present invention is to provide a composition of sport ball and a process for preparation thereof which have soft surface which prevent players from injuries.
Still another object of the present invention is to provide a composition of sport ball and a process for preparation thereof which is more durable.
Still object of the present invention is to provide a composition of sport ball and a process for preparation thereof which is cost-effective.
SUMMARY OF THE INVENTION
According to the invention, there is provided a composition of sport ball comprising 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU).
Further, according to the invention, there is provided a process for preparation of sport ball comprising, mixing 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU) with each other with the help of a mixer at 1500 – 3000 RPM for 10 – 30 minutes; blowing the mixture in a pressure-controlled chamber or an autoclave for 22 – 26 hours to obtain a synergetic material; injecting the synergetic material into a mould to form a ball; cooking the mould in water steam at 160 – 200 oC for 3 – 5 minutes and subsequently in cold water at (-5) – (-20) oC to obtain a durable sport ball to play in various format of sports.
BRIEF DESCRIPTION OF THE DRAWINGS
A composition of sport ball and process for preparation thereof, according to a preferred embodiment of the present invention, is herein described and illustrated in the accompanying drawings, wherein:
Figure 1 – illustrates multiple view of a prepared ball,
DETAILED DESCRIPTION OF THE INVENTION
A composition of sport ball and process for preparation thereof is herein described with numerous specific details so as to provide a complete understanding of the invention. However these specific details are exemplary details and should not be treated as the limitation to the scope of the invention. Throughout this specification the word “comprise” or variations such as “comprises or comprising”, will be understood to imply the inclusions of a stated element, integer or step, or group of elements, integers or steps, but not the exclusions of any other element, integer or step or group of elements, integers or steps.
A composition of sport ball comprises 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU).
In one embodiment, the polyurethane (PU) is, for example, 30-60 kg m/3 Rigid PU grades and the expanded thermoplastic polyurethane (ETPU) is of, for example, 100 – 140 grades of the expanded thermoplastic polyurethane (ETPU).
A process for preparation of sport ball comprises as following process steps. 10 – 20 % weight polyurethane (PU), and 80 – 90 % weight expanded thermoplastic polyurethane (ETPU) are mixed with each other with the help of a mixer, at 15000 – 3000 RPM for 15 – 30 minutes. The said mixture is blown in a pressure-controlled chamber or an autoclave for 22 – 26 hours to obtain a synergetic material. Then the obtained material is injected into mould of ball with the help of sucking pump. After that, the injected materials along with mould is cooked in a hot steam water at 160 – 200 oC for 3 - 5 minutes and in a cold water at (-5) – (-20) oC to obtain a durable, and suitable sport ball to play in various format of sports.
In one embodiment, the cooking process is performed in a 2 – 4 bars air pressure so as to mold the ball in a perfect shape.
The present invented sport balls were manufactured in multiple weight configurations such as 45 – 55 grams for children, 70 – 90 grams for youth, 90 – 110 grams for women, 110 – 130 grams for men, and 130 – 155 grams for professional athletes/players.
EXAMPLE – 1
14-gram polyurethane (PU), and 86 gram expanded thermoplastic polyurethane (ETPU) were used to prepare a 100 grams sport ball suitable for the women.
14 gram polyurethane (PU), and 86 gram expanded thermoplastic polyurethane (ETPU) were mixed with each other with the help of a mechanical mixer at 2000 RPM for 18 minutes. The said mixture was blown in a pressure-controlled chamber for 24 hours to obtain a synergetic material. Then the obtained material was injected into mould of ball with the help of sucking pump. After that, the injected materials along with mould was cooked in a hot steam water at 180 oC for 4 minutes and in a cold water at (-10) oC to obtain a durable, and suitable sport ball for the women.
EXAMPLE – 2
20-gram polyurethane (PU), and 100 gram expanded thermoplastic polyurethane (ETPU) are used to prepare a 120 grams sport ball suitable for the men.
EXAMPLE – 3
25-gram polyurethane (PU), and 115 gram expanded thermoplastic polyurethane (ETPU) are used to prepare a 140 grams sport ball suitable for the professional athletes/players.
In one embodiment, the ball’s design enables it to exhibit aerodynamic properties that allow for a curved flight path, enhancing its usability in various sports scenarios.
The sports ball designed to provide a safer alternative to traditional sports balls which made from a durable composition. The used material is tear-resistant, the ball offers multiple weight options suitable for different age groups and skill levels. The ball’s ourter surface is soft that minimizes the risk of injury while maintaining performance characteristics comparable to traditional balls.
Certain features of the invention have been described with reference to the example embodiments. However, the description is not intended to be construed in a limiting sense. Various modifications of the example embodiments as well as other embodiments of the invention, which are apparent to the persons skilled in the art to which the invention pertains, are deemed to lie within the spirit and scope of the invention.