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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Bulpett; David A.
Address:
Boston, MA
No. of patents:
96
Patents:


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Patent Number Title Of Patent Date Issued
8298098 Multilayer core golf ball having hardness gradient within and between each core layer October 30, 2012
The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next.
8298097 Multilayer core golf ball having hardness gradient within and between each core layer October 30, 2012
A multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient in addition to an overall specific hardness gradient from one core layer to the next. The inner core layer comprises a plurality of hardnesses of from about 50 Shore C to about 90 Shore C,
8282508 Golf ball incorporating ionomeric component having property gradients October 9, 2012
A method of making a golf ball comprising: providing a core, optionally forming at least one intermediate layer about the core, forming a cover layer about the core or the at least one intermediate layer, wherein at least one of the core, the at least one intermediate layer, and the cove
8262972 Thermoplastic core having a hardness gradient formed from a gradient-initiating solution September 11, 2012
A golf ball including a thermoplastic core having an outer diameter of 1.51 inches to 1.59 inches; an outer cover layer; and an inner cover layer between the core and the outer cover layer. The thermoplastic core has been exposed to a gradient-initiating solution comprising a solvent,
8262510 Golf ball with an ionomeric inner cover, stiff TPU intermediate cover, and cast thermoset outer September 11, 2012
A golf ball includes a core and a cover disposed adjacent the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 and 60 Shore D; an outer cover layer having a hardness between 55 and 60 Shore D; and a non-ionomeric thermoplastic polyurethane or po
8202176 Golf ball with a non-ionomeric inner cover, stiff TPU intermediate cover, and cast thermoset out June 19, 2012
A golf ball including a core and a cover disposed about the core. The cover includes a thermoplastic inner cover layer having a hardness between 55 and 60 Shore D; an outer cover layer having a hardness between 55 and 60 Shore D; and a stiff intermediate cover layer disposed between
8197359 Golf ball with single layer core having specific regions of varying hardness June 12, 2012
A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface wherein an inner core region is disposed about the
8157675 Golf ball with negative hardness gradient core April 17, 2012
A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, the single layer core further comprising an inner
8119712 Golf balls having layers made from rubber compositions containing nucleating agents February 21, 2012
Golf balls containing at least one layer made from a rubber composition comprising a benzenetrisamide nucleating agent are provided. The rubber composition preferably contains a free-radical initiator agent, cross-linking agent, and fillers along with the base rubber and nucleating a
8093337 Thin-layer-covered golf ball with improved velocity January 10, 2012
Golf balls including cores formed from polybutadiene reaction products having a percent change in dynamic stiffness from 0.degree. C. to -50.degree. C. of less than 130 percent where the reaction products include a resilient polymer component, a crosslinking material, a cis-to-trans
8034863 Golf ball compositions October 11, 2011
Golf balls consisting of a core and a cover are disclosed. The core is a solid, single-layer core formed from a rubber composition comprising a resorcinol. The core has a positive hardness gradient such that the difference between the core's surface hardness and the core's center har
8034862 Golf ball compositions October 11, 2011
Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber and a resorcinol. The core layer formed from such rubber composition has a positive hardness gradie
8034861 Golf ball compositions October 11, 2011
Golf balls consisting of a core and a cover are disclosed. The core is a solid, single-layer core formed from a rubber composition comprising a catechol. The core has a positive hardness gradient such that the difference between the core's surface hardness and the core's center hardn
8030387 Golf ball compositions October 4, 2011
Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber and a benzoquinone. The core layer formed from such rubber composition has a positive hardness grad
8030386 Golf ball compositions October 4, 2011
Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber, a free radical initiator, and a hydroquinone. A ratio of the amount of the hydroquinone present in
8030385 Golf ball compositions October 4, 2011
Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber and a catechol. The core layer formed from such rubber composition has a positive hardness gradient
8030384 Golf ball compositions October 4, 2011
Golf balls consisting of a core and a cover are disclosed. The core is a solid, single-layer core formed from a rubber composition comprising a base rubber and a quinhydrone. The core has a positive hardness gradient such that the difference between the core's surface hardness and the
8030383 Golf ball compositions October 4, 2011
Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber and a quinhydrone. The core layer formed from such rubber composition has a positive hardness gradi
8026334 Polyurea and polyurethane compositions for golf equipment September 27, 2011
Golf equipment having improved cut and shear resistance that includes a polyurea composition, preferably saturated and/or water resistant, formed of a polyurea prepolymer and a curing agent, wherein the polyurea prepolymer includes an isocyanate and an amine-terminated compound, and
8025594 Golf ball with single layer core having specific regions of varying hardness September 27, 2011
A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface wherein an inner core region is disposed about the
8021248 Multilayer core golf ball having hardness gradient within and between each core layer September 20, 2011
The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. In one embodiment
7998002 Golf ball with negative hardness gradient core August 16, 2011
A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, the single layer core further comprising an inner
7963863 Golf ball with negative hardness gradient core June 21, 2011
A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, the single layer core further comprising an inner core re
7927526 Silane-based gradient-initiating solution for thermoplastic core having a positive hardness grad April 19, 2011
A golf ball comprising a thermoplastic core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer; wherein the
7888417 Compositions for use in golf balls February 15, 2011
A golf ball comprising a core, an outer cover layer, and, optionally, an intermediate layer disposed between the core and the outer cover layer is provided. The core, intermediate layer, or cover layer includes a composition formed from a base polymer blend, a crosslink initiator, and
7857715 Negative hardness gradient inner core for dual core golf ball December 28, 2010
A golf ball includes an inner core having a first outer surface and a center formed from a homogenous composition such that the inner core has a hardness of 40 to 80 Shore C; an outer core layer disposed about the inner core having a second outer surface and an inner surface, formed
7857714 Negative hardness gradient inner core for dual core golf ball December 28, 2010
A golf ball includes an inner core having a first outer surface and a geometric center and being formed from a first substantially homogenous composition such that the inner core has a hardness of about 60 Shore C to about 90 Shore C; an intermediate layer disposed about the inner core
7803069 Negative hardness gradient inner core for dual core golf ball September 28, 2010
A golf ball includes an inner core having an outer surface and a geometric center and being formed from a first substantially homogenous composition such that the inner core has a hardness of 45 Shore C to 65 Shore C. An intermediate layer is disposed about the inner core and has an oute
7786243 Polyurea and polyurethane compositions for golf equipment August 31, 2010
Golf equipment having improved cut and shear resistance that includes a polyurea composition, preferably saturated and/or water resistant, formed of a polyurea prepolymer and a curing agent, wherein the polyurea prepolymer includes an isocyanate and an amine-terminated compound, and
7749107 Thermoplastic core having a hardness gradient formed from a gradient-initiating solution July 6, 2010
A golf ball including a thermoplastic core having an outer diameter of 1.51 inches to 1.59 inches; an outer cover layer; and an inner cover layer between the core and the outer cover layer. The thermoplastic core has been exposed to a gradient-initiating solution comprising a solvent,
7741407 Catalyst compositions comprising chain shuttling agents and the use thereof to produce golf ball June 22, 2010
The present invention is directed to golf balls having at least one layer which comprises a polymer produced by a process wherein one or more monomers are contacted with a composition comprising the admixture or reaction product resulting from combining (A) a first olefin polymerizat
7655732 Low compression, resilient golf balls with rubber core February 2, 2010
A low compression, resilient golf ball having a center including a material formed from the conversion reaction of sufficient amounts of polybutadiene, a free radical source, and a cis-to-trans catalyst to convert a portion of cis-isomer to trans-isomer in the polybutadiene, wherein
7635312 Multi-layer golf ball having velocity gradient from faster center to slower cover December 22, 2009
The present invention is directed to multi-layer golf balls having a center, a cover layer, and at least one intermediate layer between the core and the cover layer. The core, the at least one intermediate layer and the cover are constructed to have different initial velocities and C
7621825 Thermoplastic core having a negative hardness gradient formed from a plasticizer-based gradient- November 24, 2009
A golf ball comprising a thermoplastic core, the core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer;
7582027 Negative hardness gradient inner core for dual core golf ball September 1, 2009
A golf ball includes an inner core having a first outer surface and a geometric center and is formed from a first substantially homogenous formulation throughout such that the inner core has a hardness of 30 Shore C to 45 Shore C. An outer core layer is formed around the inner core a
7582025 Thermoplastic core having a negative hardness gradient formed from a plasticizer-based gradient- September 1, 2009
A golf ball comprising a thermoplastic core, the core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer;
7544730 Rubber composition comprising catechols and/or resorcinols and the use thereof in golf balls June 9, 2009
The present invention is directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, a free radical initiator, and a catechol. The present invention is also directed to a golf ball having at least one layer formed from a rubber composition
7537530 Golf ball with negative hardness gradient core May 26, 2009
A golf ball including an inner core having a first outer surface and a geometric center, the inner core having a hardness of 35 to 55 Shore C; an outer core layer adjacent the inner core having a second outer surface and an inner surface, the outer core layer having a hardness of 55 to 9
7537529 Golf ball with negative hardness gradient core May 26, 2009
A golf ball comprising a core having an outer surface and a geometric center and being formed from a substantially homogenous formulation throughout; intermediate layer; and a cover layer; wherein the surface and center have a hardness, the hardness of the surface being substantially
7534174 Rubber compositions comprising high levels of oily substance and the use thereof in golf balls May 19, 2009
The present invention is directed to golf balls having at least one layer formed from a rubber composition comprising a base rubber and from 10 parts to 120 parts of an oily substance, by weight per 100 parts of the base rubber. The base rubber is a polybutadiene having a Mooney viscosit
7531603 Thin-layer-covered golf ball with improved velocity May 12, 2009
Golf balls including centers formed from polybutadiene reaction products having a percent change in dynamic stiffness from 0.degree. C. to -50.degree. C. of less than 130 percent where the reaction products include a resilient polymer component, a crosslinking material, a cis-to-tran
7530908 Multi-layer golf ball having velocity gradient from faster center to slower cover May 12, 2009
The present invention is directed to multi-layer golf balls having a center, a cover layer, and at least one intermediate layer between the core and the cover layer. The core, the at least one intermediate layer and the cover are constructed to have different initial velocities and C
7491787 Polyurea and polyurethane compositions for golf equipment February 17, 2009
Golf equipment having improved cut and shear resistance that includes a polyurea composition, preferably saturated and/or water resistant, formed of a polyurea prepolymer and a curing agent, wherein the polyurea prepolymer includes an isocyanate and an amine-terminated compound, and
7452942 Rubber compositions comprising quinhydrones and the use thereof in golf balls November 18, 2008
The present invention is directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, a free radical initiator, and a quinhydrone. The free radical initiator is generally present in the rubber composition in an amount of at least 0.05 parts
7446150 Low compression, resilient golf balls with rubber core November 4, 2008
A low compression, resilient golf ball having a center including a material formed from the conversion reaction of sufficient amounts of polybutadiene, a free radical source, and a cis-to-trans catalyst to convert a portion of cis-isomer to trans-isomer in the polybutadiene, wherein
7429221 Negative hardness gradient outer core layer for dual core golf ball September 30, 2008
A golf ball including an inner core having a first outer surface and a geometric center is formed from a substantially homogenous formulation such that the inner core generally has a hardness of 35 Shore C to 85 Shore C. An outer core layer is formed around the inner core and has a s
7429220 Golf balls containing interpenetrating polymer networks September 30, 2008
The present invention is directed to a golf ball that contains an interpenetrating polymer network, or IPN, including at least two polymeric components. These IPNs may be present in any golf ball layer, although in an intermediate or cover layer in one preferred embodiment. The prese
7427242 Thermoplastic core having a negative hardness gradient formed from a plasticizer-based gradient- September 23, 2008
A golf ball comprising a thermoplastic core, the core having an outer diameter of 1.51 inches to 1.59 inches and having an outer surface and a geometric center, each having a hardness; an outer cover layer; and an inner cover layer disposed between the core and the outer cover layer;
7410429 Negative hardness gradient inner core for dual core golf ball August 12, 2008
A golf ball having an inner core having a first outer surface and a geometric center and being formed from a substantially homogenous formulation such that the inner core has a hardness of 45 Shore C to 65 Shore C; an outer core layer disposed about the inner core having a second out
7375153 Zinc stearate-cis-to-trans catalyst blends for improved golf ball core compositions May 20, 2008
A golf ball including a solid core formed from a composition comprising a diene rubber, a metallic fatty acid salt present in an amount of from 6.3 parts to 7.5 parts, a cis-to-trans catalyst present in an amount of 2.35 parts or greater, and an organic peroxide present in an amount of 0
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