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| 20090170635 | GOLF BALL LAYER HAVING REDUCED SURFACE HARDNESS AND METHOD OF MAKING SAME - A method of making a golf ball comprising the steps of providing an untreated golf ball core comprising a thermoset rubber composition, the untreated golf ball core comprising an untreated outer surface having a hardness; treating the untreated outer surface of the untreated golf ball core with a surface-softening material comprising at least one fatty acid or fatty acid salt composition to form a golf ball core comprising a treated outer surface having a hardness less than the hardness of the untreated outer surface; and forming at least one cover layer about the core to form the golf ball. Also, the untreated core may comprise a geometric center and an untreated outer surface, each having a hardness such that the hardness of the treated outer surface is less than both the hardness of the untreated geometric center and the hardness of the untreated outer surface. A golf ball comprising a core and a cover, wherein the core has an outer surface that is treated with at least one fatty acid such that the outer surface has a hardness ratio (R) of the hardness after treatment (H | 07-02-2009 |
| 20100267468 | GOLF BALL COVERS MADE FROM POLYUREAS BASED ON POLYCAPROLACTONES - A golf ball having a cover material made from a polyurea composition is provided. In one version, the golf ball includes a polybutadiene core and surrounding cover layer made of a polyurea composition. In another version, the golf ball includes a polybutadiene core, an intermediate casing layer made of ionomer resin, and an outer cover layer made of the polyurea composition. The polyurea composition is the reaction product of an isocyanate, amine-terminated polycaprolactone, and amine-terminated curing agent. The resulting cover material has many advantageous properties including improved durability, toughness, abrasion-resistance, and moisture-resistance. | 10-21-2010 |
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| 20090011868 | CASTABLE POLYUREA FORMULATION FOR GOLF BALL COVERS - Golf balls having improved cut and shear resistance that include covers and/or other layers formed from polyurea compositions formed with at least one amine-terminated polytetramethylene ether glycol homopolymer, at least one amine-terminated copolymer of polytetramethylene ether glycol and polyalkylene glycol. The amine-terminated polytetramethylene ether glycol homopolymer or amine-terminated copolymer of polytetramethylene ether glycol and polyalkylene glycol may be used as the isocyanate-reactive in the prepolymer and/or the curing agent. | 01-08-2009 |
| 20090286628 | GOLF BALL HAVING A HARD OUTER SKIN - Golf balls having a hard outer skin produced from a material that includes crosslinks in both the hard and soft segments of the polymer backbone that improve the crosslink density. Compositions formed from polyurethane and/or polyurea prepolymers that are first cured with a curative blend including an isocyanate-reactive component to crosslink the hard segment and then exposed to a free radical initiator and radiation to crosslink the soft segments are used in an outer layer of a golf ball, a unitary golf ball, or other golf ball constructions. | 11-19-2009 |
| 20100144466 | GOLF BALL CORE HAVING MEDIUM POSITIVE HARDNESS GRADIENT AND HIGH SURFACE HARDNESS - A golf ball includes a single solid core having a surface hardness and a geometric center hardness. The core has an outer diameter of about 1.5 to 1.62 inches. An outer cover layer formed from a polyurea or polyurethane has a first hardness, and an inner cover layer, disposed between the core and the outer cover, has a second hardness greater than the first hardness and within 5 Shore C of the core surface hardness. The geometric center hardness is about 64 to 85 Shore C, and the core surface hardness is greater than 85 Shore C and harder than the geometric center hardness by about 5 to 22 Shore C to define a positive hardness gradient. | 06-10-2010 |
| 20100222156 | GOLF BALL HAVING REDUCED SURFACE HARDNESS - The invention is directed to a golf ball comprising a core comprising at least one layer, a cover disposed about the core, the cover comprising at least one cover layer comprising a cover inner surface and a cover outer surface, the cover layer further comprising a treated cover region and an untreated cover region, the treated cover region extending inward from the cover outer surface a depth D | 09-02-2010 |
| 20100227708 | GOLF BALL HAVING REDUCED SURFACE HARDNESS - The invention is directed to golf ball comprising a core and a cover disposed about the core, the cover comprising at least one cover layer comprising an cover outer surface and a cover inner surface, the cover outer surface comprising a fatty acid and/or fatty acid salt composition, the cover outer surface further comprising a hardness α and the cover inner surface comprising a hardness β, wherein the hardness α is different than the hardness β. In another embodiment, the at least one cover layer comprises a treated cover region and an untreated cover region, the treated cover region extending inward from the cover outer surface a depth of about 1% or greater of a distance between the cover outer surface and the cover inner surface, and the untreated cover region being disposed about the cover inner surface and adjacent the treated cover region. In yet another embodiment, the treated cover region extends inward from the cover outer surface a predetermined depth D | 09-09-2010 |
| 20100227709 | GOLF BALL HAVING REDUCED SURFACE HARDNESS - The invention is directed to a method of making a golf ball comprising the steps of: providing a core comprising at least one layer; forming a cover about the core comprising at least one cover layer comprising a cover inner surface and a cover outer surface and having a thickness D; treating the cover outer surface with a fatty acid and/or fatty acid salt composition and forming a treated cover region which extends inward from the cover outer surface a penetration depth D | 09-09-2010 |
| 20120100934 | BLENDS OF LINEAR AND BRANCHED NEODYMIUM-CATALYZED RUBBER FORMULATIONS FOR USE IN GOLF BALLS - The invention relates to golf ball formulations formed from blends of linear and branched polybutadienes catalyzed with neodymium that have improved properties and processing characteristics. Golf ball components may be formed from the blends to provide high coefficient of restitution. | 04-26-2012 |
