Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Bulpett; David A.
Address:
Boston, MA
No. of patents:
63
Patents:


1 2


Patent Number Title Of Patent Date Issued
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
7361711 Compositions for use in golf balls April 22, 2008
A golf ball including a core and at least one layer disposed about the core, wherein the core or the layer is formed from a composition including a base polymer, a crosslink initiator, and an additive, wherein the additive is both an inorganic-sulfur compound and a sulfuric acid amid
7358309 Compositions for use in golf balls April 15, 2008
A golf ball including a core and at least one layer disposed about the core, wherein the core or the layer includes a composition formed from a base polymer, a crosslink initiator, and at least one additive. The additive has at least one C--O--B linkage, the carbon in the linkage bei
7358308 Compositions for use in golf balls April 15, 2008
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 presently disclosed. At least one layer of the golf ball is formed from a composition comprising a base polymer, a crosslink initiator, and a
7351165 Rubber compositions comprising high levels of oily substance and the use thereof in golf balls April 1, 2008
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
7331878 Multi-layer golf ball having velocity gradient from slower center to faster cover February 19, 2008
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 center, the at least one intermediate layer and the cover are constructed to have different initial velocities and
7300364 Multi-layer golf ball having velocity gradient from faster center to slower cover November 27, 2007
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
7285058 Pre-vulcanized or pre-crosslinked materials for golf balls October 23, 2007
The present invention relates to golf ball components and golf balls comprising high levels of pre-vulcanized or pre-crosslinked materials, as well as methods of making same. The pre-vulcanized or pre-crosslinked materials are typically thermoset materials that are fragmented or ground
7271222 Thin-layer-covered golf ball with improved velocity September 18, 2007
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
7262235 Urethane elastomers with improved color stability August 28, 2007
A golf ball comprising a center, an inner cover layer, and an outer cover layer, wherein the outer cover layer has a color lightness, L*, of 87 or greater following exposure to UV light at an irradiance power of 1.00 W/m.sup.2/nm for a period of about 1 hour to about 4 hours, and the cov
7175545 Golf balls containing interpenetrating polymer networks February 13, 2007
The present invention is directed to a method of forming a golf ball that contains an interpenetrating polymer network, or IPN, which includes at least two polymeric components, in one or more of the layers. In one preferred embodiment, the present invention is directed to a method of
7160954 Golf ball compositions neutralized with ammonium-based and amine-based compounds January 9, 2007
The present invention is directed to a golf ball and to a process for forming a golf ball having at least one layer, where the layer is formed of an ionomer composition having greater than about 70 percent of the acid groups neutralized by a neutralizing component including ammonium
7148278 Urethane elastomers with improved color stability December 12, 2006
A golf ball including a center, a cover, and, optionally, at least one intermediate layer disposed between the center and the cover, wherein the cover is formed from a polyurethane composition, or a reaction product thereof, including at least one polyol; at least one polyisocyanate; at
7141196 Method of manufacturing a golf ball having one or more layers November 28, 2006
The present invention relates to golf ball components and golf balls comprising high levels of pre-vulcanized or pre-crosslinked materials, as well as methods of making same. The pre-vulcanized or pre-crosslinked materials are typically thermoset materials that are fragmented or ground
7127933 High speed resiliometer October 31, 2006
An apparatus and method for testing the physical properties of a material is disclosed. Preferably, the physical properties that may be tested include, but are not limited to, the COR of a material. Accordingly, the apparatus includes a projectile that may be capable of being propelled
7119127 Golf balls containing cis-to-trans converted polybutadiene and methods for making same October 10, 2006
A golf ball having at least a core and a cover, wherein at least a portion of the ball is formed from a material resulting from the isomerization of an amount of polybutadiene in solution to create a resulting polybutadiene having an increased content of trans-polybutadiene, is discl
7105610 Thin-layer-covered golf ball with improved velocity September 12, 2006
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
7041743 Thin-layer-covered golf ball with improved velocity May 9, 2006
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
7041006 Golf balls including solution blended polymeric composite and method of making same May 9, 2006
Golf balls having a portion or layer formed from a polymeric composite that preferably includes at least two polymers with distinct microstructures. In particular, the balls can include a polybutadiene having at least about 80 percent cis-isomer polybutadiene blended with a polybutad
7030192 Golf ball cores comprising a halogenated organosulfur compound April 18, 2006
A golf ball comprising a core having a diameter of between about 1.54 inches and about 1.57 inches, a compression of between about 70 and 80, and comprising a polybutadiene rubber composition comprising a magnesium salt of pentachlorothiophenol; a cover having a thickness of about 0.04
7009005 Thin-layer-covered golf ball with improved velocity March 7, 2006
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
7001954 Thin-layer-covered golf ball with improved velocity February 21, 2006
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
6998445 Low compression, resilient golf balls with rubber core February 14, 2006
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
6995214 Thin-layer-covered golf ball with improved velocity February 7, 2006
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
6992142 Thin-layer-covered golf ball with improved velocity January 31, 2006
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
6982301 Golf ball cores comprising blends of polybutadiene rubbers January 3, 2006
A golf ball comprising a solid core and a cover disposed about the core, wherein the core is formed from a polybutadiene blend comprising a) a first polybutadiene having a first Mooney viscosity between about 50 and about 150, and b) a second polybutadiene having a second Mooney viscosit
6964621 Water resistant polyurea elastomers for golf equipment November 15, 2005
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
6958379 Polyurea and polyurethane compositions for golf equipment October 25, 2005
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
6835779 Golf balls containing a halogenated organosulfur compound and resilient regrind December 28, 2004
A golf ball consisting of a core and a cover. The core has a diameter of between about 1.54 and about 1.58 inches and a compression of between about 22 and about 50. Additionally, the core includes a polybutadiene rubber having a Mooney viscosity of less than about 50 and a halogenated
6818724 Thin-layer-covered golf ball with inproved velocity November 16, 2004
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
6818705 Thin-layer-covered golf ball with improved velocity November 16, 2004
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unre
6790147 Low modulus golf ball compositions and methods for making same September 14, 2004
Golf balls having a core including a material formed from a controlled-isomer polybutadiene, a crosslinking agent, and a free-radical initiator, or a reaction product thereof, and a cover having a plurality of dimples disposed about the core, wherein the controlled-isomer polybutadie
6774187 Golf ball cores comprising blends of polybutadiene rubbers August 10, 2004
A golf ball comprising a solid core and a cover disposed about the core, wherein the core is formed from a polybutadiene blend comprising a) a first polybutadiene having a first Mooney viscosity between about 50 and about 150, and b) a second polybutadiene having a second Mooney viscosit
6767940 Golf ball compositions comprising stable free radicals July 27, 2004
A golf ball comprising a core, a cover, and optionally an intermediate layer between the core and the cover, wherein a stable free radical is incorporated into at least one portion of the core, the cover, and the optional intermediate layer.
1 2


 
 
  Recently Added Patents
Hair straightener
Traction device for dual wheels
Soybean variety D4470236
Optical microscopy with phototransformable optical labels
Resist pattern thickening material, resist pattern and process for forming the same, and semiconductor device and process for manufacturing the same
Bucket cleaning apparatus
Laser apparatus and method for harmonic beam generation
  Randomly Featured Patents
Specific eatable taste modifiers
Snowboard carrier for attachment to a vehicle roof rack
Swivel nut
Magnetic recording media
Process for preparing waterless printing masters
Arylcycloalkyl derivatives, their production and their use
Pen
Splicing head for adding conductors to an electrical connector
Method for updating a file
Electromagnetic speaker with bucking parallel high and low frequency coils drives sounding board and second diaphragm or external apparatus via magnetic coupling and having adjustable air gap