Diverse Layer Between Spherical Core And Cover Patents (Class 473/373)
  • Patent number: 11383137
    Abstract: Golf balls having covers made of thermoplastic polyurethane compositions are provided. Multi-piece golf balls can be made. In one embodiment, the outer cover layer is formed from a composition comprising a thermoplastic polyurethane and multi-functional hydroxyl compound. Mixtures of multi-functional amines and imines, and multi-functional isocyanates, and solvent, can be applied to the outer cover to form at least a partially cross-linked cover. The cover composition can further include catalysts, ultraviolet (UV)-light stabilizers, and other additives. The coating methods have many benefits and the finished balls have good physical properties.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: July 12, 2022
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 11358034
    Abstract: In a multi-piece solid golf ball having a core formed of a rubber composition, an intermediate layer formed of a polyurethane material and a cover, the ball satisfies the following condition: surface hardness of ball?surface hardness of intermediate layer-encased sphere. When the ball is struck with a driver at a head speed of 40 m/s, the sum of the time t1 required from contact initiation between the driver and ball for deformation of the ball to reach a maximum value and the time t2 required from the state of maximum ball deformation for the ball and driver clubface to separate is at least 685 microseconds, and the ratio t2/t1 is at least 1.35, and the core has a specific hardness profile. This ball has an excellent flight performance when hit by low or moderate head-speed golfers, is receptive to spin on approach shots and has a good, soft feel at impact.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: June 14, 2022
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Hideo Watanabe
  • Patent number: 11344771
    Abstract: Golf balls having a single or dual-layered solid core are provided. In one embodiment, the golf ball has dimensions and properties that do not conform to the rules of the United States Golf Association (USGA). For example, the ball weight; ball size; ball spherical symmetry; ball initial velocity; and/or ball overall distance may fall outside of the USGA standards. The dual-layered core can have an inner core comprising a thermoplastic composition and surrounding outer core comprising a thermoset composition. In another embodiment, the dual-layered core has an inner core comprising a thermoplastic composition and outer core comprising a thermoset composition. The thermoplastic composition preferably comprises an ethylene acid copolymer ionomer and plasticizer. The thermoset composition preferably comprises polybutadiene rubber. The ball further includes a cover of at least one layer.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: May 31, 2022
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Derek A. Ladd
  • Patent number: 11318354
    Abstract: A golf ball comprising layers that have from 0.05% to 70% by weight of a radio-opaque filler, and wherein the concentration of the radio-opaque filler is measurably different in each layer is disclosed herein. The radio-opaque filler is preferably a compound based on barium, bismuth, tungsten, iodine, or reduced iron.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: May 3, 2022
    Assignee: Callaway Golf Company
    Inventor: David M. Melanson
  • Patent number: 11202938
    Abstract: In a multi-piece solid golf ball having a core, an envelope layer, an intermediate layer and a cover, the core, an intermediate layer-encased sphere and the ball have surface hardnesses which satisfy a specific relationship, and the envelope layer, the intermediate layer and the cover have thicknesses which satisfy a specific relationship. Also, the core has a hardness profile in which the hardnesses at the core surface, core center, a position 5 mm from the core center, and a position midway between the surface and center of the core satisfy specific relationships. This golf ball, when used by mid- and high-level amateurs, enables the golfer to maintain an adequate distance on shots with a driver and achieve a good distance on iron shots, has a good spin performance on approach shots and has a good feel on impact. In addition, the ball has an excellent scuff resistance when struck with a grooved wedge.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: December 21, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Akira Kimura, Jun Shindo
  • Patent number: 11185741
    Abstract: A golf ball comprising layers that have from 0.05% to 70% by weight of a radio-opaque filler, and wherein the concentration of the radio-opaque filler is measurably different in each layer is disclosed herein. The radio-opaque filler is preferably a compound based on barium, bismuth, tungsten, iodine, or reduced iron.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: November 30, 2021
    Assignee: Callaway Golf Company
    Inventor: David M. Melanson
  • Patent number: 11167178
    Abstract: A golf ball comprising: (a) a core; (b) at least one mantle layer adjacent to the core; (c) an inner cover layer adjacent to the mantle layer; and (d) an outer cover layer adjacent to the inner cover layer, wherein the inner cover layer has a material Shore D hardness that is at least 3 less than the material Shore D hardness of the outer cover layer, and the inner cover layer has a thickness of less than 0.050 in.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: November 9, 2021
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Dean A. Snell, Eric Michael Loper
  • Patent number: 11148012
    Abstract: A method for forming a golf ball with a graphene core disclosed herein. The method includes mixing a graphene masterbatch material with a polybutadiene material to form a core mixture, wherein the graphene masterbatch material comprises graphene in an amount from 0.1 to 80.0 weight percent of the graphene masterbatch material mixed with a carrier polymer in an amount from 99.9 to 20 weight percent of the graphene masterbatch material.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: October 19, 2021
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 11117022
    Abstract: Multi-layered golf balls having at least one layer made of a foamed silicone composition are provided. Multi-layered golf balls having at least one layer made of non-foamed silicone elastomer composition also are provided. For example, three-piece, four-piece, and five-piece golf balls containing different core and cover structures can be made. The foamed silicones have good thermal stability and durability without sacrificing resiliency. The non-foamed silicone elastomers have high elongation, tensile strength, chemical/fluid-resistance, and weatherability properties. These compositions can be used to form any layer, for example, core, intermediate, or cover, in the golf ball.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: September 14, 2021
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Brian Comeau
  • Patent number: 11103753
    Abstract: In a golf ball having a core, an intermediate layer and a cover, the core is formed primarily of a base rubber, has a diameter set in a specific range and has a specially designed internal hardness profile, the intermediate layer and the cover are each formed of resin materials, and the surface hardness of the ball is higher than the surface hardness of the intermediate layer-encased sphere. This ball achieves a satisfactory distance on full shots with a driver and with long and middle irons, provides a good spin performance on approach shots, and has a durability to repeated impact and a scuff resistance that are both excellent.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: August 31, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Atsushi Komatsu
  • Patent number: 11027174
    Abstract: In a multi-piece solid golf ball having a core, an envelope layer, an intermediate layer and a cover, the core is formed primarily of a base rubber and has a diameter set in a specific range, the envelope layer, intermediate layer and cover are each formed of resin materials, and the envelope layer is formed into two layers—an inner layer and an outer layer. The center and surface hardnesses of the core, the surface hardness of the inner envelope layer-encased sphere, the surface hardness of the outer envelope layer-encased sphere, the surface hardness of the intermediate layer-encased sphere and the surface hardness of the ball together satisfy a specific relationship. This ball achieves a satisfactory distance on full shots both with a driver and with irons, in addition to which it is superior in the short game and has a good feel at impact and an excellent scuff resistance.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: June 8, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Hideo Watanabe
  • Patent number: 11013962
    Abstract: A golf ball comprising: (a) a core; (b) an inner mantle layer; (c) an intermediate mantle layer; (d) an outer mantle layer; and (e) at least one cover layer; wherein the core has a PGA compression of less than 70, and the core/inner mantle layer/intermediate mantle layer combined construct has a PGA compression of at least 30.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 25, 2021
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Eric M. Loper, Dean A. Snell
  • Patent number: 10953285
    Abstract: Golf balls having covers made of thermoplastic polyurethane compositions are provided. Multi-piece golf balls can be made. In one embodiment, the outer cover layer is formed from a composition comprising a thermoplastic polyurethane and multi-functional hydroxyl compound. Mixtures of multi-functional amines and imines, and multi-functional isocyanates, and solvent, can be applied to the outer cover to form at least a partially cross-linked cover. The cover composition can further include catalysts, ultraviolet (UV)-light stabilizers, and other additives. The coating methods have many benefits and the finished balls have good physical properties.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: March 23, 2021
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 10946251
    Abstract: In a multi-piece solid golf ball having a core, a cover and an intermediate layer therebetween, the core, an intermediate layer-encased sphere and the ball have surface hardnesses which satisfy a specific relationship, and the intermediate layer and the cover have thicknesses which satisfy a specific relationship. Also, the core has a hardness profile in which the hardnesses at the core surface, core center, a position 5 mm from the core center, and a position midway between the surface and center of the core satisfy specific relationships. This golf ball, when used by mid- and high-level amateurs, enables the golfer to maintain an adequate distance on shots with a driver and achieve a good distance on iron shots, has a good spin performance on approach shots and has a good feel on impact. In addition, the ball has an excellent scuff resistance when struck with a grooved wedge.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 16, 2021
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Akira Kimura, Jun Shindo
  • Patent number: 10933285
    Abstract: Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center, an intermediate core layer, and an outer core layer. At least one layer of the multi-layer core is a high specific gravity layer.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 2, 2021
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 10898762
    Abstract: A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: January 26, 2021
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 10888739
    Abstract: A golf ball with improved durability is disclosed herein. The golf ball has a core comprising a polybutadiene material and methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 0.5 to 5 weight percent of the core.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: January 12, 2021
    Assignee: Callaway Golf Company
    Inventors: Armando Becerra, Carl Brown, David Bartels, Vijay Chavan
  • Patent number: 10870039
    Abstract: A golf ball with a center core comprising 1,4 polybutadiene with a cis content more than 50% and containing a metal salt of acrylate, wherein the 1,4 polybutadiene has 5 to 60 weight percent of a metal salt of acrylate, is disclosed herein. The metal salt of acrylate is preferably selected from zinc, magnesium, sodium, and calcium.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: December 22, 2020
    Assignee: Callaway Golf Company
    Inventor: Hong G. Jeon
  • Patent number: 10814184
    Abstract: The present invention is directed to multi-layer golf balls including a layer formed from a relatively soft or low modulus HNP composition and a layer formed from a relatively hard or high modulus HNP composition. Optionally, the soft (or low modulus) HNP composition and/or the hard (or high modulus) HNP composition is plasticized or is replaced with a different plasticized acid copolymer composition.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 27, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, David A. Bulpett, Robert Blink, Mark L. Binette, Brian Comeau
  • Patent number: 10780322
    Abstract: Multi-layered golf balls having at least one layer made from silicone (polysiloxane) elastomers; silicone (polysiloxane) elastomer/polyurethane blends; polycarbonate-polysiloxane blends and copolymers; and polycarbonate-polysiloxane/polyurethane blends are provided. For example, three-piece, four-piece, and five-piece golf balls containing different core and cover structures can be made. The polysiloxane compositions have good thermal stability and durability without sacrificing resiliency. The polysiloxane compositions also have high elongation, tensile strength, chemical/fluid-resistance, and weatherability properties. These compositions can be used to form any layer, for example, core, intermediate, or cover, in the golf ball.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 22, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Mark L. Binette, Michael Michalewich, Shawn Ricci
  • Patent number: 10758786
    Abstract: In a golf ball having a two-layer core consisting of an inner core layer and an outer core layer, one or more intermediate layer, and a cover serving as an outermost layer, the inner core layer and outer core layer are each formed primarily of a base rubber, the inner core layer has a diameter of at least 21 mm, the intermediate layer and the cover are each formed primarily of a resin material, and the overall core has a specific hardness profile. The golf ball has a high initial velocity while holding down the spin rate on full shots with a driver or long iron, thus enabling a good distance to be achieved. The ball also has a high controllability in the short game.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: September 1, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Akira Kimura, Masanobu Kuwahara
  • Patent number: 10744376
    Abstract: Multi-layered golf balls having a core made of a foamed composition, preferably polyurethane foam, are provided. The ball includes a dual-layered core having a foam inner core (center) and surrounding outer core layer. The outer core layer may be made from a non-foamed thermoset material such as polybutadiene rubber. The ball further includes an inner cover, preferably made from an ionomer composition comprising an O/X-type acid copolymer, wherein O is ?-olefin, and X is a C3-C8 ?,?-ethylenically unsaturated carboxylic acid. The outer cover may be made from a non-foamed thermoset or thermoplastic material such as polyurethane. Preferably, the specific gravity of the inner cover is greater than the specific gravity of the outer core, which is greater than the specific gravity of the inner core. The finished ball has good distance and low-spin properties.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: August 18, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Douglas S. Goguen, Shawn Ricci, Mark L. Binette, Michael Michalewich
  • Patent number: 10737144
    Abstract: Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof dispersed in a thermoset polymeric matrix. The intermediate core layer is preferably formed from a first thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a second thermoplastic composition. The resulting ball has high resiliency and good spin control.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 11, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 10709938
    Abstract: Multi-piece golf balls containing a dual-layered core and dual-layered cover are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer. The core layers may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and combinations and alloys thereof preferably dispersed in a thermoplastic polymeric matrix. The outer core layer is preferably formed from a thermoset composition such as polybutadiene. The multi-layered cores and covers have selective specific gravity relationships between the different layers. This helps provide the ball with good flight distance and spin control. The resulting balls have good resiliency and other playing performance properties.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: July 14, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Derek A. Ladd
  • Patent number: 10695617
    Abstract: The present invention provides a novel golf ball construction including a layer having a design based on a minimal surface. The layer is defined by an envelope shape having an outer boundary and an inner boundary, and consists of a minimal surface and an interstitial space, the minimal surface and interstitial space being bounded by the envelope shape. The minimal surface is a single continuous surface which does not intersect itself and has zero mean curvature.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: June 30, 2020
    Assignee: Achushnet Company
    Inventor: Michael R. Madson
  • Patent number: 10682553
    Abstract: Golf ball comprising layer(s) consisting of a mixture consisting of: i) ethylene acid copolymer(s) and/or ionomer(s); ii) polyethylene(s); iii) polymeric epoxy crosslinker(s); and iv) compatibilizing polymer(s). The ethylene acid copolymer(s)/ionomer(s) and the polyethylene(s) may be included in a blend in a wt % ratio of from about 85:15 to 55:45; the at least one polymeric epoxy crosslinker and compatibilizing polymer may be included in amounts, based on 100 parts of the blend, of from about 2.0 to about 10.0 parts; and from about 1.0 to about 10.0 parts, respectively. The polyethylene may be polyethylene butene; polyethylene hexene; polyethylene octene; and combinations thereof. Each ethylene acid copolymer, polyethylene, polymeric epoxy crosslinker, and compatibilizing polymer has a density less than 1.0 g/cm3. The mixture is moldable and meanwhile possesses similar desirable CoR, DCM compression, Shore D hardness, and Shore C hardness as a mixture consisting of ingredients i), ii) and iv).
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: June 16, 2020
    Assignee: Acushnet Company
    Inventors: Brian Comeau, David A. Bulpett, Robert Blink
  • Patent number: 10675510
    Abstract: A golf ball comprising: (a) a core; (b) at least one mantle layer adjacent to the core; (c) an inner cover layer adjacent to the mantle layer; and (d) an outer cover layer adjacent to the inner cover layer, wherein the inner cover layer has a material Shore D hardness that is at least 3 less than the material Shore D hardness of the outer cover layer, and the inner cover layer has a thickness of less than 0.050 in.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 9, 2020
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Dean A. Snell, Eric Michael Loper
  • Patent number: 10675511
    Abstract: Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. In one preferred embodiment, each core layer has a positive hardness gradient. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof. The intermediate core layer is preferably formed from a first thermoset composition such as polybutadiene rubber, and the outer core layer is preferably formed from a second thermoset composition. The resulting ball has high resiliency and good spin control.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: June 9, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 10653922
    Abstract: In a multi-piece solid golf ball having a core, a cover and an intermediate layer therebetween, the core, an intermediate layer-encased sphere and the ball have surface hardnesses which satisfy a specific relationship, and the intermediate layer and the cover have thicknesses which satisfy a specific relationship. Also, the core has a hardness profile in which the hardnesses at the core surface, core center, a position 5 mm from the core center, and a position midway between the surface and center of the core satisfy specific relationships. This golf ball, when used by mid- and high-level amateurs, enables the golfer to maintain an adequate distance on shots with a driver and achieve a good distance on iron shots, has a good spin performance on approach shots and has a good feel on impact. In addition, the ball has an excellent scuff resistance when struck with a grooved wedge.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: May 19, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Akira Kimura, Jun Shindo
  • Patent number: 10639523
    Abstract: In a golf ball having a two-layer core consisting of an inner core layer and an outer core layer, an intermediate layer and a cover, the core is formed primarily of a base rubber, the diameter of the inner core layer is at least 21 mm, the intermediate layer and cover are each formed primarily of a resin material, the overall core has a specific hardness profile, the inner core layer has a higher specific gravity than the outer core layer, and the sphere consisting of the core encased by the intermediate layer has a higher surface hardness than the ball. This golf ball has a high initial velocity at impact while holding down the spin rate on full shots with a driver or long iron, enabling a good distance to be achieved. The ball also has a good controllability in the short game.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: May 5, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Akira Kimura, Masanobu Kuwahara
  • Patent number: 10610741
    Abstract: In a golf ball having a core, an intermediate layer and a cover, the intermediate layer-encased sphere has a higher surface hardness than the ball. The core hardness profile in the ball is designed such that the core surface has a Shore C hardness value which is at least 28 higher than the Shore C hardness value at the core center, and the surface areas A to F calculated from hardness differences between positions located at specific distances in the core and differences between the specific distances satisfy a specific formula. This golf ball has an excellent flight performance when struck by skilled amateur golfers and professionals, and also has a good controllability on shots with an iron.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: April 7, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Masanobu Kuwahara
  • Patent number: 10596419
    Abstract: Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center, an intermediate core layer, and an outer core layer. At least one layer of the multi-layer core is a high specific gravity layer.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 24, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 10543403
    Abstract: Multi-layered golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The outer core layer is preferably formed from a non-foamed thermoset composition such as polybutadiene rubber. The core layers have different hardness and specific gravity levels. The specific gravity (density) of the foam inner core is preferably less than the density of the outer core layer. The core assembly preferably has a positive hardness gradient extending across the entire assembly. The core structure and resulting ball have relatively good resiliency.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: January 28, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Brian Comeau, Douglas S. Goguen, Michael Michalewich, Shawn Ricci
  • Patent number: 10543400
    Abstract: Multi-piece golf balls having a solid core and cover are provided. The ball contains a small, heavy inner core and surrounding outer core layer. The inner core preferably contains metal powder such as copper, steel, brass, tungsten, titanium, nickel, iron, tin, and bronze particles dispersed in a thermoset or thermoplastic polymeric matrix. For example, a polybutadiene rubber matrix may be used. In one preferred embodiment, the inner core contains elemental iron powder. Preferably, the particles have a weight average size in the range of about 10 ?m to about 450 ?m. In one embodiment, the outer surface of the inner core has a structure with projecting members. For example, the outer surface may contain multiple projecting ribs with gaps located between the ribs. The ball includes a cover surrounding the core structure. The cover may be multi-layered.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: January 28, 2020
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 10532253
    Abstract: A polyurethane-ionomer hybrid resin composition for a golf ball cover having excellent elastic reaction force and backspin performance comprises 100 parts by weight of a modified ionomer having a number average molecular weight in a range of 1,000 to 2,400, provided as a reaction product generated by a reaction among a polyol including hydroxyl groups on opposing ends of the polyol, a monomer of acrylic acid or methacrylic acid having 2 to 3 functional groups, and zirconia, and modified in such a manner that a polyester oligomer in a zirconia complex state and a zirconia filled state is added to an ionomer resin to be reacted, and a portion of unsaturated carboxylic acid of an ionomer is neutralized to be zirconium and additionally polymerized to be the polyester oligomer; 20 to 40 parts by weight of a block polyurethane prepolymer with respect to 100 parts by weight of the modified ionomer; 70 to 100 parts by weight of the ionomer with respect to 100 parts by weight of the modified ionomer; and 1 to 10 parts
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: January 14, 2020
    Assignee: VOLVIK INC.
    Inventors: Chul Ho Song, In Hong Hwang, Kyung Ahn Moon
  • Patent number: 10512823
    Abstract: In a multi-piece solid golf ball made up of, successively, a core, an intermediate layer and a cover having numerous dimples on the surface thereof, the intermediate layer is formed of a resin material and the cover is formed of a urethane resin material, each having a specific respective Shore D hardness. The ball has a specific (intermediate layer thickness)/(core diameter) value and a specific (cover thickness)/(core diameter) value, and the core has a specific deflection. The sphere consisting of the core encased by the intermediate layer has an initial velocity A and the core has an initial velocity B which together satisfy the condition A?B?0 m/s. This golf ball provides an increased distance and has both a soft feel when played and a high durability to repeated impact.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: December 24, 2019
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Katsunori Sato, Masanobu Kuwahara
  • Patent number: 10507362
    Abstract: A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 17, 2019
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 10500446
    Abstract: A method for forming a golf ball with a graphene core disclosed herein. The method includes mixing a graphene masterbatch material with a polybutadiene material to form a core mixture, wherein the graphene masterbatch material comprises graphene in an amount from 0.1 to 80.0 weight percent of the graphene masterbatch material mixed with a carrier polymer in an amount from 99.9 to 20 weight percent of the graphene masterbatch material.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: December 10, 2019
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 10486029
    Abstract: Golf ball comprising first layer of first polymeric composition, and second layer adjacent to first layer and comprising second polymeric composition different than first polymeric composition and comprising throughout: (i) passivated TiO2 particulates amount of from about 1 wt. %-10 wt. % based on total weight of second polymeric composition; and (ii) silane-containing adhesion promoter(s), for example, organosilanes and/or organosiloxanes, such that a given amount thereof within the range of from about 0.1 wt. % to about 5.0 wt. % has a first required amount of free functional groups to bond the second layer and the first layer at an interface in addition to a second required amount of functional groups bonding and/or crosslinking ingredients within the second polymeric composition of the second layer. Neither layer is surface treated with at least one silane-containing adhesion promoter, nor is a tie layer disposed there between.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: November 26, 2019
    Assignee: Acushnet Company
    Inventors: Brian Comeau, Shawn Ricci, Michael Michalewich, Mark L. Binette
  • Patent number: 10456629
    Abstract: A golf ball comprising an inner core comprising polybutadiene, and an outer core comprising a polybutadiene material, a graphene material and a carbon nanotube material (CNT) is disclosed herein. Improved durability of the core by using a mixture of graphene and CNT can result in higher mean time to fail (MTTF) upon repeated impact in a high speed testing device, or with a golf club in normal play.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 29, 2019
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 10456628
    Abstract: An object of the present invention is to provide a golf ball having good spin performance on approach shots and good shot feeling as well as excellent stain resistance by precisely controlling physical properties of a paint film actually formed on a surface of a golf ball body. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film is such that a linear approximation curve obtained by a least square method has a slope in an absolute value ranging from 0.0001 to 0.0020 when a loss tangent tan ? thereof measured by a nanoindentation method is plotted as a vertical axis against a measuring frequency (Hz) as a horizontal axis, and that an elastic modulus thereof measured by a nanoindentation method ranges from 0.040 GPa to 0.600 GPa.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: October 29, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiyuki Tarao, Kazuya Kamino, Mami Tanaka, Hidetaka Inoue
  • Patent number: 10449420
    Abstract: Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least three layers, including at least one thermoset layer and at least one thermoplastic layer. The innermost core layer is relatively small, having a diameter of from 0.50 inches to 1.30 inches.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: October 22, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Derek A. Ladd
  • Patent number: 10441852
    Abstract: A golf ball comprising: (a) a core; (b) an inner mantle layer; (c) an intermediate mantle layer; (d) an outer mantle layer; and (e) at least one cover layer; wherein the core has a PGA compression of less than 70, and the core/inner mantle layer/intermediate mantle layer combined construct has a PGA compression of at least 30.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 15, 2019
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Eric Michael Loper, Dean A. Snell
  • Patent number: 10413783
    Abstract: Multi-layered golf balls containing a three-layered cover assembly are provided. For example, a cover assembly having an inner cover, intermediate cover, and outer cover layer may be prepared. At least one of the cover layers is formed from a thermoplastic composition that preferably comprises: a) thermoplastic non-acid polymer, and b) plasticizer. A fatty acid ester such as ethyl oleate is preferably used as the plasticizer. Suitable non-acid polymers include, for example, polyesters, polyamides, polyolefins, and polyurethanes. The cover assembly has good impact durability and helps provide the ball with relatively high resiliency at given compressions.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 17, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Robert Blink, Mark L. Binette, David A. Bulpett, Brian Comeau
  • Patent number: 10406403
    Abstract: Provided is a bismuth golf ball with improved carry distance and fracture strength by adding a nano bismuth reformed by using plasma or a nano bismuth alloy manufactured by using the nano bismuth to a resin composition as a base material as compared with a bismuth golf ball in the related art. Since the nano bismuth golf ball has a more densified internal structure due to a higher content of bismuth as compared with the bismuth golf ball, the resilient elasticity is improved, and thus, the carry distance is increased.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 10, 2019
    Assignee: VOLVIK INC.
    Inventors: Yoo Seok Hong, In Hong Hwang, Kyung Ahn Moon
  • Patent number: 10398943
    Abstract: Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof dispersed in a thermoset polymeric matrix. The intermediate core layer is preferably formed from a first thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a second thermoplastic composition. The resulting ball has high resiliency and good spin control.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: September 3, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 10376743
    Abstract: A golf ball with a core comprising polybutadiene and graphene, and a soft cover is disclosed herein. The golf ball has a dual core with an outer core comprising polybutadiene and graphene. The soft cover is preferably composed of a highly neutralized polymer, a first ionomer, a second ionomer, and a paraloid impact modifier.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 13, 2019
    Assignee: Callaway Golf Company
    Inventors: Petra Petrich, David Bartels, Hong G. Jeon, Carl Brown
  • Patent number: 10376744
    Abstract: A golf ball with a core comprising polybutadiene and graphene, and a soft cover is disclosed herein. The golf ball has a dual core with an outer core comprising polybutadiene and graphene. The soft cover is preferably composed of a highly neutralized polymer, a first ionomer, a second ionomer, and a paraloid impact modifier.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 13, 2019
    Assignee: Callaway Golf Company
    Inventors: Petra Petrich, David Bartels, Hong G. Jeon, Carl Brown
  • Patent number: 10363461
    Abstract: In a multi-piece solid golf ball having a core, a cover and an intermediate layer therebetween, the core, an intermediate layer-encased sphere and the ball have surface hardnesses which satisfy a specific relationship, and the intermediate layer and the cover have thicknesses which satisfy a specific relationship. Also, the core has a hardness profile in which the hardnesses at the core surface, core center, a position 5 mm from the core center, and a position midway between the surface and center of the core satisfy specific relationships. This golf ball, when used by mid- and high-level amateurs, enables the golfer to maintain an adequate distance on shots with a driver and achieve a good distance on iron shots, has a good spin performance on approach shots and has a good feel on impact. In addition, the ball has an excellent scuff resistance when struck with a grooved wedge.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 30, 2019
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Akira Kimura
  • Patent number: 10350459
    Abstract: An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball having a low hardness part having a hardness in a range from 5 to 40 in Shore D hardness or a lowest hardness point in a core hardness distribution in a region located at a distance from 36.0% to 65.0% of a radius of the golf ball from a center point of the golf ball.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: July 16, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takahiro Shigemitsu, Hidetaka Inoue