Abstract: A golf ball having a cover material made from a polyurethane or polyurethane/urea hybrid composition is provided. The polyurethane or polyurethane/urea composition is produced by the reaction of an isocyanate blend having an average NCO functionality in the range of 2.05 to 2.35, a polyamine compound, and amine or hydroxyl chain-extender. The resulting cover material has many advantages including improved thermal-stability, durability, toughness, and cut/tear-resistance. The preferred isocyanates in the blend include isophorone diisocyanate (“IPDI”); 1,6-hexamethylene diisocyanate (“HDI”); 4,4?-dicyclohexylmethane diisocyanate (“H12MDI”); 4,4?-diphenylmethane diisocyanate (4,4?MDI); toluene diisocyanate (“TDI”); and homopolymers and copolymers thereof.

Abstract: Methods for making multi-layered golf balls having at least one layer or coating made from a thiol-ene composition and the resultant golf balls are provided. A polymerizable composition comprising multifunctional thiol and -ene compounds is used to form the layer or coating. In one embodiment, the outer cover layer is made from the thiol-ene material. In another embodiment, a thiol-ene composition is applied as a protective coating over the outer cover layer. The thiol-ene layer or coating helps provide the ball with good impact durability and, toughness.

Abstract: A golf ball having a cover material made from a polyurea or polyurea/urethane hybrid composition is provided. The polyurea or polyurea/urethane composition is produced by the reaction of an isocyanate blend having an average NCO functionality in the range of 2.05 to 2.35, a polyamine compound, and amine or hydroxyl curing agent. The resulting cover material has many advantages including improved thermal-stability, durability, toughness, and cut/tear-resistance. The preferred isocyanates in the blend include isophorone diisocyanate (“IPDI”); 1,6-hexamethylene diisocyanate (“HDI”); 4,4?-dicyclohexylmethane diisocyanate (“H12 MDI”); 4,4?-diphenylmethane diisocyanate (4,4?-MDI); toluene diisocyanate (“TDI”); and homopolymers and copolymers thereof.

Abstract: A golf ball having a cover material made from a polyurethane or polyurethane/urea hybrid composition is provided. The polyurethane or polyurethane/urea composition is produced by the reaction of an isocyanate blend having an average NCO functionality in the range of 2.05 to 2.35, a polyamine compound, and amine or hydroxyl chain-extender. The resulting cover material has many advantages including improved thermal-stability, durability, toughness, and cut/tear-resistance. The preferred isocyanates in the blend include isophorone diisocyanate (“IPDI”); 1,6-hexamethylene diisocyanate (“HDI”); 4,4?-dicyclohexylmethane diisocyanate (“H12 MDI”); 4,4?-diphenylmethane diisocyanate (4,4?MDI); toluene diisocyanate (“TDI”); and homopolymers and copolymers thereof.

Abstract: A golf ball having a cover material made from a polyurea or polyurea/urethane hybrid composition is provided. The polyurea or polyurea/urethane composition is produced by the reaction of an isocyanate blend having an average NCO functionality in the range of 2.05 to 2.35, a polyamine compound, and amine or hydroxyl curing agent. The resulting cover material has many advantages including improved thermal-stability, durability, toughness, and cut/tear-resistance. The preferred isocyanates in the blend include isophorone diisocyanate (“IPDI”); 1,6-hexamethylene diisocyanate (“HDI”); 4,4?-dicyclohexylmethane diisocyanate (“H12 MDI”); 4,4?-diphenylmethane diisocyanate (4,4?-MDI); toluene diisocyanate (“TDI”); and homopolymers and copolymers thereof.

Abstract: Multi-piece, solid golf balls having a cover material made from a polyurethane/urea hybrid composition are provided. The balls include an inner core preferably made of polybutadiene and may include at least one intermediate layer disposed between the core and outer cover. The cover materials are prepared by first forming a polyurethane prepolymer which undergoes two curing steps. In the first step, the prepolymer is chemically-cured by reacting it with hydroxyl curing agents, amine curing agents, or mixtures thereof. In the second step, the composition is moisture-cured. The cured material may be used to make a golf ball cover having improved durability, cut/tear resistance, and impact strength.

Abstract: Multi-piece, solid golf balls having a cover material made from a polyurea or polyurea/urethane hybrid composition are provided. The cover materials are prepared by first forming a polyurea prepolymer which undergoes two curing steps. In the first step, the prepolymer is chemically-cured by reacting it with hydroxyl curing agents, amine curing agents, or mixtures thereof. In the second step, the composition is moisture-cured. The cured material may be used to make a golf ball cover having improved durability, cut/tear resistance, and impact strength.

Abstract: Multi-piece, solid golf balls having a cover material made from a polyurea or polyurea/urethane hybrid composition are provided. In one version of the method, the cover materials are prepared by forming a polyurea prepolymer which undergoes two curing steps. In the first step, the prepolymer is partially-cured by reacting it with hydroxyl curing agents, amine curing agents, or mixtures thereof. In the second step, the composition is moisture-cured using environmental controls such as humidity chambers or hot water baths. In another version, a polyurea prepolymer is prepared and then treated with an aqueous curative blend comprising an amine curing agent. The cured materials may be used to make a golf ball cover having improved durability, cut/tear resistance, and impact strength.

Abstract: The present invention provides an improved process for mixing castable polyurethanes and polyureas and for prolonging the dispensing time for dispensing them into a golf ball mold for application to a golf ball sub-assembly. A nozzle framework includes support housing heaters and heater adaptors for each dispensing port to delay the onset of drool and improve cut off in the dispensing tubes. The combination of fluorinated dispensing ports, the heating of the polyureas or polyurethanes, and inclusion of a capillary orifice in each dispensing port significantly prolongs the time before the advent of drool is detected.

Abstract: The present invention provides an improved process for mixing castable polyurethanes and polyureas and for prolonging the dispensing time for dispensing them into a golf ball mold for application to a golf ball sub-assembly. A nozzle framework includes support housing heaters and heater adaptors for each dispensing port to delay the onset of drool and improve cut off in the dispensing tubes. The combination of fluorinated dispensing ports, the heating of the polyureas or polyurethanes, and inclusion of a capillary orifice in each dispensing port significantly prolongs the time before the advent of drool is detected.

Abstract: The present invention provides an improved apparatus and system for mixing castable polyurethanes and polyureas and for prolonging the dispensing time for dispensing them into a golf ball mold for application to a golf ball sub-assembly. A nozzle framework includes support housing heaters and heater adaptors for each dispensing port to delay the onset of drool and improve cut off in the dispensing tubes. The combination of fluorinated dispensing ports, the heating of the polyureas or polyurethanes, and inclusion of a capillary orifice in each dispensing port significantly prolongs the time before the advent of drool is detected.