Diverse Layer Between Spherical Core And Cover Patents (Class 473/374)
  • Patent number: 11376476
    Abstract: An object of the present invention is to provide a golf ball having an excellent flight performance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover covering the spherical core, wherein a hardness difference D1 (H75?H0) between a hardness H75 at a point radially located at a distance of 75% from a center of the spherical core and a center hardness H0 of the spherical core is 10 or more and 27 or less in Shore C hardness, and a hardness difference D2 (Hs?H75) between a surface hardness Hs of the spherical core and the hardness H75 at the point radially located at the distance of 75% from the center of the spherical core is 0 or more and 6.5 or less in Shore C hardness.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: July 5, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Chiemi Mikura, Kazuyoshi Shiga, Hikaru Nagakura, Ryota Sakamine
  • Patent number: 11358032
    Abstract: A golf ball 2 includes a main body 4 and a paint layer 6 positioned outside the main body 4. The main body 4 includes a spherical core 8, a mid layer 10 positioned outside the core 8, and a cover 12 positioned outside the mid layer 10. An indentation depth, measured when the paint layer 6 in a cross-section along a plane passing through a central point of the golf ball 2 is pressed by a force of 30 mgf in a direction perpendicular to the cross-section, is not less than 300 nm and not greater than 3000 nm. The paint layer 6 preferably has a thickness of not less than 5 ?m and not greater than 50 ?m.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: June 14, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kazuya Kamino, Hidetaka Inoue, Toshiyuki Tarao
  • Patent number: 11291887
    Abstract: In a golf ball having a core, an intermediate layer and a cover, the core is formed primarily of a base rubber and has a diameter set in a specific range, and the intermediate layer and cover are each formed of resin materials. The core has an internal hardness such that, regarding the hardness at the core center, the hardnesses at positions located at 2 mm intervals from the core center outward up to 16 mm and the core surface hardness, the hardness differences therebetween are set within a specific range. The ball surface hardness is set so as to be higher than the surface hardness of the intermediate layer-encased sphere. This ball achieves a satisfactory distance on full shots not only with a driver, but also with a long iron or a middle iron, in addition to which it has an excellent durability to repeated impact.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: April 5, 2022
    Assignee: Bridgestone Snorts Co., Ltd.
    Inventors: Hideo Watanabe, Atsushi Komatsu
  • Patent number: 11173349
    Abstract: An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots, having enhanced controllability on approach shots under a wet condition, and being excellent in stain resistance and shot feeling. The present invention provides a golf ball comprising a golf ball body having a cover, and a paint film covering the golf ball body, wherein a 10% elastic modulus of the paint film is 75 kgf/cm2 or less, a storage modulus (E?150) at 150° C. of the paint film obtained by measuring dynamic viscoelasticity of the paint film is 1.0×107 Pa or more, an indentation depth of the paint film measured with a nanoindenter in a state that the paint film is formed on the surface of the golf ball body is 1250 nm or more, and a material hardness of the cover is 50 or more in Shore D hardness.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 16, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiyuki Tarao, Mami Tanaka, Hidetaka Inoue
  • Patent number: 11173348
    Abstract: An object of the present invention is to provide a golf ball having enhanced controllability on approach shots from the rough and excellent stain resistance and shot feeling. The present invention provides a golf ball comprising a golf ball body having a cover, and a paint film covering the golf ball body, wherein a 10% elastic modulus of the paint film is 75 kgf/cm2 or less, a storage modulus (E?150) at 150° C. of the paint film obtained by measuring dynamic viscoelasticity of the paint film is 1.0×107 Pa or more, an indentation depth of the paint film measured under a specific measuring condition in a state that the paint film is formed on the surface of the golf ball body is 1250 nm or more, and a material hardness of the cover is less than 50 in Shore D hardness.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 16, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiyuki Tarao, Mami Tanaka, Hidetaka Inoue
  • Patent number: 11148010
    Abstract: A golf ball with a cover layer composed of a blend of non- or partially neutralized copolymeric or terpolymeric ionomer(s), hydroxyl-functionalized styrenic block copolymer and silane coupling agent (SCA). The amount of SCA is preferably between 0.01 and 2.0 weight percent based on the total weight of the polymer composition. The cover layer preferably has a Shore A hardness less than 90.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: October 19, 2021
    Assignee: Callaway Golf Company
    Inventors: Hong G. Jeon, Vijay Chavan
  • Patent number: 10967227
    Abstract: Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: April 6, 2021
    Assignee: Acushnet Company
    Inventor: Michael J. Sullivan
  • Patent number: 10894191
    Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a ratio (t2/t1) of a time (t2) to a time (t1) of 1.05 or more in a hitting test using a driver (at a head speed of 40 m/sec), wherein the time (t1) is a time taken from a moment that the driver begins to contact with the golf ball to a moment that the golf ball reaches a maximum deformation amount, and the time (t2) is a time taken from the moment that the golf ball reaches the maximum deformation amount to a moment that the golf ball leaves the driver.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: January 19, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryota Sakamine, Kazuyoshi Shiga, Hikaru Nagakura, Takahiro Shigemitsu
  • Patent number: 10799767
    Abstract: Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: October 13, 2020
    Assignee: Acushnet Company
    Inventor: Michael J. Sullivan
  • Patent number: 10773130
    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: September 30, 2019
    Date of Patent: September 15, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Akira Kimura, Jun Shindo
  • Patent number: 10722756
    Abstract: In a golf ball having a core and a cover of at least one layer, the outermost layer of the cover is formed of a resin composition that includes (A) 100 parts by weight of a thermoplastic resin, and (B) 1 to 30 parts by weight of a compound having a fluorene skeleton, or a derivative thereof, and the resin composition has a melt flow rate of at least 3.0 g/10 min. This resin composition for golf balls has an improved injection-moldability and thus enables the ball to achieve both a reduced spin rate and a good durability (scuff resistance).
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: July 28, 2020
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Takanori Tago, Atsushi Nanba
  • Patent number: 10668329
    Abstract: Golf balls comprising a core having at least one layer and a cover having at least one layer are provided. At least one of the layers is made from a thermoplastic composition preferably comprising a telechelic ionomer derived from alkyl-cis-cyclooctene and cis-cyclooctene. The telechelic ionomer composition also may be used to form intermediate layers. Blends of telechelic ionomers and polybutadiene rubbers or ethylene acid copolymers can be prepared. The telechelic ionomer compositions can be used to make a cover layer having good impact durability and shear resistance and that also helps provide the ball with high resiliency.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 2, 2020
    Assignee: Acushnet Company
    Inventors: Erin C. McDermott, Brian Comeau, Michael J. Sullivan, Mark L. Binette
  • Patent number: 10668334
    Abstract: Golf balls and golf ball components made using three-dimensional (3D) additive manufacturing systems are provided. The golf ball includes at least one three-dimensional piece. Preferably, a continuous liquid interface printing method is used to make the three-dimensional structure. Ultraviolet (UV)-light polymerizable materials are used in the method. The method may be used to make single-piece or multi-piece balls. For example, the ball may include an inner core produced by the liquid interface printing method. An outer core layer may be disposed about the inner core, and a cover comprising inner and outer cover layers may encapsulate the core assembly to form the finished golf ball. The outer core and cover layers may be made using conventional molding technologies or the methods of this invention.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: June 2, 2020
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Edmund A. Hebert, Nicholas M. Nardacci, Brian Comeau
  • Patent number: 10486030
    Abstract: Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 26, 2019
    Assignee: Acushnet Company
    Inventor: Michael J. Sullivan
  • Patent number: 10434373
    Abstract: Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: October 8, 2019
    Assignee: Acushnet Company
    Inventor: Michael J. Sullivan
  • Patent number: 10427004
    Abstract: Golf ball comprising thermoplastic blend of (i) ionomer(s); (ii) different thermoplastic polymer(s); (iii) reactive crosslinker(s) consisting of maleic group-modified polymer(s), and/or glycidyl (meth)acrylate-modified polymer(s) (“PGM”); and (iv) catalyst(s); ionomer present in amount of about 45 wt % or greater, and PGM present in amount of from about 2 wt % to about 35 wt %. Thermoplastic polymer may be present in amount of from about 8 wt % to about 50 wt %; or from about 25 wt % to about 45 wt %; or from about 35 wt % to about 50 wt %. Amount of ionomer may be greater than amount of thermoplastic polymer. Thermoplastic polymer may be a polyurethane present in amount of greater than 20 wt % and up to about 40 wt %; and the PGM is present in amount of from about 5 wt % to about 30 wt %. In some embodiments, PGM is present in an amount of from about 15 wt % to about 35 wt %.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: October 1, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Michael Michalewich
  • Patent number: 10328314
    Abstract: Multi-layered golf balls containing a two-layered core assembly are provided. Preferably, at least one of the core layers is formed from a thermoplastic composition that comprises: a) thermoplastic non-acid polymer, and b) plasticizer. In one preferred embodiment, the inner core is made of a first thermoplastic composition comprising the non-acid polymer and plasticizer; and the outer core layer is made of a second thermoplastic composition. For example, an ethylene acid copolymer may be used to form the outer core layer. 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 core assembly has a relatively high resiliency at given compressions.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 25, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Robert Blink, David A. Bulpett, Mark L. Binette, Brian Comeau
  • Patent number: 10315077
    Abstract: A golf ball includes: a radio frequency identification (RFID) tag including an IC chip and an antenna; a protection layer surrounding the outer periphery of the RFID tag; a relaxation layer surrounding the outer periphery of the protection layer; a core surrounding the outer periphery of the relaxation layer; and a cover surrounding the outer periphery of the core. The curing temperature of the protection layer is 60° C. or less, and the protection layer is formed with a material having a hardness of Shore D 60 or more. The relaxation layer is formed with a thermoplastic elastomer-based material having a hardness with a difference from a hardness of a surface of the core on a side contacting the relaxation layer of Shore D 20 or less.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 11, 2019
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Atsushi Komatsu
  • Patent number: 10293216
    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: October 11, 2016
    Date of Patent: May 21, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Brian Comeau
  • Patent number: 10232224
    Abstract: An object of the present invention is to provide a golf ball having excellent resilience performance. The present invention provides a golf ball having a spherical core and at least one cover layer, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) a crosslinking initiator, provided that the rubber composition further contains (d) a metal compound in the case of containing only (b) the ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent, wherein (c) the crosslinking initiator includes a peroxy ketal represented by the formula (1), and substituents represented by R1 and R2 have a bond dissociation energy of 435 KJ/mol or more.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: March 19, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ayaka Shindo, Hiroshi Tadaoka, Chiemi Mikura, Kazuyoshi Shiga
  • Patent number: 10226670
    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. At least one core layer has a plurality of projections disposed thereon.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: March 12, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Derek A. Ladd, Brian Comeau, Douglas S. Goguen
  • Patent number: 10220262
    Abstract: Low compression multi-piece golf balls having a solid core comprising at least one layer made of a plasticized thermoplastic composition are provided. Preferably, the ball has a compression of less than 60 and more preferably less than 50. The ball includes a cover in addition to the core sub-assembly. For example, two-piece and three-piece golf balls may be made. The plasticized thermoplastic composition preferably comprises: a) ethylene acid copolymer, b) plasticizer, and c) cation source. Preferably, a fatty acid ester such as butyl oleate is used as the plasticizer. In two-layered core constructions, the outer core layer is preferably formed from a thermoset composition such as polybutadiene rubber. The core layers may have different hardness levels. The core structure and resulting ball have relatively good resiliency at given compressions.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 5, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Robert Blink, David A. Bulpett, Brian Comeau, John D. Farrell, Douglas S. Goguen
  • Patent number: 10207156
    Abstract: A golf ball with a center core comprising polybutadiene and a clay material in an amount ranging from 0.4 to 2.5 weight percent of the center core is disclosed herein. Alternatively, the golf ball has a mantle layer with a blend of ionomer materials and a clay material in an amount ranging from 0.4 to 2.5 weight percent of the mantle layer.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: February 19, 2019
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 10155137
    Abstract: A golf ball core for use in a multi-piece golf ball includes a solid sphere and between 100 and 300 spaced polygonal protrusions extending from the solid sphere in a radially outward direction. The sphere is substantially formed from an ionomeric material, and has a diameter (D) of between 24 mm and 32 mm. The polygonal protrusions extend from the sphere by a maximum distance of between 0.15 mm and 1.0 mm.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: December 18, 2018
    Assignee: Feng Tay Enterprises Co., LTD
    Inventors: Hideyuki Ishii, Aaron Bender, Nicholas A. Leech, Nicholas Yontz, Jun Ichinose, Chen-Hsin Chou, Chen-Tai Liu, Shih-Kai Lin
  • Patent number: 10150861
    Abstract: The present invention relates to the use of a mono (meth)acrylate ester in a golf ball layer. The mono (meth)acrylate ester may be added to one or more portions of a golf ball including a core, intermediate, or cover layer. For example, in one embodiment, the mono (meth)acrylate ester may be blended with a polybutadiene rubber material. In another embodiment, the mono (meth)acrylate ester of the present invention may be blended with an ionomer. In some embodiments, the mono (meth)acrylate ester may be blended with a formulation including both a polybutadiene rubber component and an ionomer.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: December 11, 2018
    Assignee: Acushnet Company
    Inventors: Brian Comeau, Michael J. Sullivan, Mark L. Binette
  • Patent number: 10137333
    Abstract: Multi-layered golf balls containing a two or three-layered core assembly are provided. In one embodiment, the core assembly includes an inner core (center) comprising a thermoset composition, an intermediate core layer; and surrounding outer core layer. Preferably, the thermoplastic composition comprises: a) ethylene acid copolymer, b) plasticizer, and c) cation source. A fatty acid ester such as ethyl oleate is preferably used as the plasticizer. A second thermoset composition such as polybutadiene rubber may be used to form the outer core layer. The core layers have different hardness levels. In another embodiment, a two-layered core structure is provided. For example, the inner core and/or outer core layer may be made of the plasticized thermoplastic composition. The core structure and resulting ball have relatively good resiliency at given compressions.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: November 27, 2018
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, David A. Bulpett, Brian Comeau
  • Patent number: 10092796
    Abstract: A golf ball includes an inner core layer having a first surface hardness and a geometric center hardness. The center hardness is less than the first surface hardness to define a first positive hardness gradient of about 1 to 12 Shore C. An outer core layer has a second surface hardness. A cover layer is formed over the outer core layer. The second outer surface hardness is greater than the geometric center hardness to define a second positive hardness gradient of about 12 to 22 Shore C.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: October 9, 2018
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Dennis Britton
  • Patent number: 10062027
    Abstract: A golf ball includes an RFID tag provided with an IC chip and an antenna. A protective layer surrounds the outer periphery of the RFID tag. A core surrounds the outer periphery of the protective layer. A cover surrounds the outer periphery of the core. The protective layer is formed by a material having a hardness equal to or more than 30 in Shore D. Further, the diameter of the protective layer is 3 to 30 millimeters, and the outer shape of the protective layer has an approximately spherical shape.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: August 28, 2018
    Assignee: BRIDGESTONE SPORTS CO., LTD.
    Inventor: Atsushi Komatsu
  • Patent number: 10029150
    Abstract: A golf ball includes a core having an outer surface, a geometric center, and a soft transition region adjacent to the outer surface. The soft transition region has a thickness of about 4 mm or less and includes about 2 to 10 percent of a trans-polybutadiene isomer. An outer cover layer has a hardness of about 50 Shore M or greater. The core outer surface hardness is greater than the hardness at the geometric center to define a positive hardness gradient of about 10 to 48 Shore C. The core has a secondary gradient quotient, GQ?, of 1.5 to 7.25, GQ? being defined by the equation: G ? + T 10 × COR where G? is the positive hardness gradient in Shore C, T is the percent trans-polybutadiene isomer at the core outer surface, and COR is the coefficient of restitution of the core measured at an incoming velocity of 125 ft/s.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 24, 2018
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Mark L. Binette
  • Patent number: 10016661
    Abstract: Methods for making golf balls and golf ball components using three-dimensional (3D) additive manufacturing systems are provided. The golf ball includes at least one three-dimensional piece. Preferably, a continuous liquid interface printing method is used to make the three-dimensional structure. Ultraviolet (UV)-light polymerizable materials are used in the method. The method may be used to make single-piece or multi-piece balls. For example, the ball may include an inner core produced by the liquid interface printing method. An outer core layer may be disposed about the inner core, and a cover comprising inner and outer cover layers may encapsulate the core assembly to form the finished golf ball. The outer core and cover layers may be made using conventional molding technologies or methods of this invention.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: July 10, 2018
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Edmund A. Hebert, Nicholas M. Nardacci, Brian Comeau
  • Patent number: 10010762
    Abstract: An object of the present invention is to provide a golf ball showing an increased spin rate on approach shots under a wet condition while maintaining a spin rate on approach shots under a dry condition. 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 has a multi-layered construction composed of two or more layers, and a difference (Min?Mout) between a 10% elastic modulus (Min) of an innermost layer of the paint film and a 10% elastic modulus (Mout) of an outermost layer of the paint film is 25 kgf/cm2 or more.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: July 3, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiyuki Tarao, Hidetaka Inoue, Kazuya Kamino, Kosuke Tachibana
  • Patent number: 9975006
    Abstract: Multi-layered golf balls having at least one layer made of a polyamide composition containing a transparent polyamide polymer and fatty acid salt are provided. In one preferred version, the polyamide composition consists essentially of a blend of 40 to 99% by weight transparent polyamide and 1 to 60% by weight fatty acid salt. The golf ball includes a core having at least one layer and a cover having at least one layer. The polyamide composition may be used to form any core, cover, or other layer in the golf ball. The polyamide compositions have a good combination of properties including Coefficient of Restitution (COR) and compression.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 22, 2018
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Robert Blink, Michael J. Sullivan, Mark L. Binette, Brian Comeau
  • Patent number: 9925425
    Abstract: Golf ball having at least three layers comprising an ionomeric and/or HNP composition, wherein for each two adjacent layers, a relationship is established between a ratio of the volumes of the two adjacent layers and a ratio of the percent neutralizations of those two layers such that the volumes and % neutralizations of all layers are interrelated and interdependent to produce unique and desirable playing characteristics. In one embodiment, each of T layers, wherein T?3, has a different volume “V” and comprises an ionomeric/HNP composition having a different % neutralization “N”; and wherein each of n inner layers of the T layers (n<T) has an adjacent surrounding layer n+1 such that a volume Vn and a % neutralization Nn of each inner layer and a volume V(n+1) and % neutralization N(n+1) of each adjacent surrounding layer n+1 satisfy the relationship (V(n+1)?Vn)/V(n+1)?(N(n+1)?Nn)/Nn.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: March 27, 2018
    Assignee: Acushnet Company
    Inventors: Derek A. Ladd, Edmund A. Hebert, Douglas E. Jones, Donald A. Serino
  • Patent number: 9839814
    Abstract: Multi-layer golf balls comprising a single- or dual-layer core, an intermediate layer, and an outer cover layer are disclosed. The intermediate layer is formed from a thermoplastic elastomer composition and has a surface hardness which is greater than the center hardness of the core and less than the outer surface hardness of the core. The outer surface hardness of the outer cover layer is greater than the outer surface hardness of the core.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: December 12, 2017
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Robert Blink, David A. Bulpett
  • Patent number: 9839812
    Abstract: A golf ball of one aspect of the present invention includes a spherical core, one or more cover members to cover the core, and a coating layer to coat a cover member configuring an outermost layer of the one or more cover members. A plurality of dimples is formed in the cover member of the outermost layer. Roughness is produced on a surface of the coating layer after applying a coat over the cover member of the outermost layer. An average value Fa (mm) of maximum depths of the plurality of dimples and arithmetic average roughness Ra (?m) on the surface of the coating layer, satisfy a relational expression: ?1.5×Fa+0.8?Ra??1.5×Fa+1.8.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: December 12, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventor: Takahiro Sajima
  • Patent number: 9789369
    Abstract: An object of the present invention is to provide a golf ball traveling a great distance on driver shots and on iron shots.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 17, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Hironori Takihara, Kosuke Tachibana, Takahiro Sajima, Kohei Mimura
  • Patent number: 9782633
    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: August 6, 2015
    Date of Patent: October 10, 2017
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Derek A. Ladd, Edmund A. Hebert, Douglas E. Jones
  • Patent number: 9764195
    Abstract: Low compression multi-piece golf balls having a solid core comprising at least one layer made of a plasticized thermoplastic composition are provided. Preferably, the ball has a compression of less than 60 and more preferably less than 50. The ball includes a cover in addition to the core sub-assembly. For example, two-piece and three-piece golf balls may be made. The plasticized thermoplastic composition preferably comprises: a) ethylene acid copolymer, b) plasticizer, and c) cation source. Preferably, a fatty acid ester such as butyl oleate is used as the plasticizer. In two-layered core constructions, the outer core layer is preferably formed from a thermoset composition such as polybutadiene rubber. The core layers may have different hardness levels. The core structure and resulting ball have relatively good resiliency at given compressions.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: September 19, 2017
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Robert Blink, David A. Bulpett, Brian Comeau, John D. Farrell, Douglas S. Goguen
  • Patent number: 9731167
    Abstract: An object of the present invention is to provide a golf ball striking a good balance between flight distance on driver shots and spin rate on approach shots, and excellent in stain resistance and shot feeling. The present invention provides a golf ball comprising a paint film, wherein a base resin of the paint film contains a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition containing a urethane polyol having a polyether diol with a number average molecular weight in a range from 800 to 3,000 as a constituent component, and the following requirements are satisfied: Mp?200×X?75 Mp?100 Minm?Moum>40 Moum?Mc<5 Tinm?Toum>Tc>Tp (Tinm×Minm)/(Toum×Moum)>2.0 (Toum×Moum)/(Tc×Mc)<3.0 (Tc×Mc)/(Tp×Mp)>10.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: August 15, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kosuke Tachibana, Kazuhiko Isogawa, Toshiyuki Tarao
  • Patent number: 9669264
    Abstract: Multi-layer golf balls having a hard, high compression center, a relatively soft intermediate layer, and a stiff outer cover layer, are provided. The outer surface hardness of the intermediate layer is less than that of both the center and the outer cover layer.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: June 6, 2017
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Edmund A. Hebert, Derek A. Ladd, Douglas E. Jones
  • Patent number: 9669267
    Abstract: A golf ball includes an inner core layer having a first surface hardness and a geometric center hardness. The center hardness is less than the first surface hardness to define a first positive hardness gradient of about 1 to 12 Shore C. An outer core layer has a second surface hardness. A cover layer is formed over the outer core layer. The second outer surface hardness is greater than the geometric center hardness to define a second positive hardness gradient of about 12 to 22 Shore C.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: June 6, 2017
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Dennis Britton
  • Patent number: 9610477
    Abstract: Golf ball comprising at least one layer having a Shore D material hardness of from about 10 to about 55 and consisting of a millable polyurethane rubber composition comprising rubber consisting of: at least one polyether-based millable polyurethane rubber; at least one polyester-based millable polyurethane rubber; at least one polycaprolactone-based millable polyurethane rubber; or combinations thereof; wherein the millable polyurethane rubber composition is vulcanized. The rubber may be mixed/compounded with additional non-rubber ingredients such as at least one cross linking agent, peroxide initiator, filler, antioxidant, processing agent, light stabilizer, colorant, adhesion promotor, isocyanate and/or polyol, or combinations thereof. The at least one layer may be a cover layer, with a second layer, formed from at least one of a thermoset urethane or a thermoplastic material, being adjacent to an inner surface of the cover layer and meanwhile disposed about a polybutadiene-containing core.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 4, 2017
    Assignee: Acushnet Company
    Inventors: Mark L. Binette, Shawn Ricci, Michael Michalewich, Douglas S. Goguen, Brian Comeau
  • Patent number: 9583326
    Abstract: A focusing ionization device includes a ball having a surface with a plurality of dimples and a metal needle located at one side of the ball and capable of generating corona discharge. The focusing ionization device is adapted for being disposed in a mass spectrometer in a way that the ball is located at a spray path of gaseous analytes and the metal needle is located adjacent to a sample inlet of a mass analyzer. When the gaseous analytes pass through the ball, the gaseous analytes can be gathered around the metal needle, which in turn are ionized to produce analyte ions to be transmitted into the mass analyzer by a potential difference. Therefore, the focusing ionization device of the present disclosure can effectively enhance the amount of the analyte ions entering into the mass analyzer, thereby improving ion transmission efficiency.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: February 28, 2017
    Assignee: NATIONAL CHUNG HSING UNIVERSITY
    Inventors: Maw-Rong Lee, Yen-Hsien Li
  • Patent number: 9474941
    Abstract: An object of the present invention is to provide a golf ball with improved durability and/or resilience by improving the adhesion between a constituent member comprising an ionomer resin and a constituent member comprising a polyurethane. The present invention provides a golf ball material composed of a multi-block copolymer having a block A that has an acid functional group neutralized with a metal ion and a block B that has lower polarity than the block A.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: October 25, 2016
    Assignee: DUNLOP SPORTS CO., LTD.
    Inventors: Toshiyuki Tarao, Kuniyasu Horiuchi
  • Patent number: 9468814
    Abstract: A multi-layer golf ball includes a core, and intermediate layer, and a cover. The core has an outer surface that includes a plurality of depressions extending from a spherical land portion. Each depression has a maximum depth relative to the spherical land portion of between 0.15 mm and 2.0 mm. The intermediate layer surrounds the core and has a radially inward surface that is flush with the outer surface of the core. The cover layer surrounds the intermediate layer and defines an outermost portion of ball.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: October 18, 2016
    Assignee: NIKE, Inc.
    Inventors: Hideyuki Ishii, Aaron Bender, Nicholas Yontz, Jun Ichinose, Chien-Hsin Chou, Chen-Tai Liu
  • Patent number: 9427629
    Abstract: Golf ball comprising a first layer having a first spherical outer surface; a thin moisture vapor barrier layer disposed concentrically about the first spherical outer surface and having a thickness of less than about 0.010 inches; and a second layer disposed concentrically about a second spherical outer surface of the thin moisture vapor barrier layer. The thin moisture vapor barrier layer is formed from an ionomer composition consisting of a 1-50 percent aqueous mono-valent high acid ionomer dispersion, with the ionomer: having an acid level greater than 18%; having more than 45% of acid groups that are neutralized with a monovalent cation; and being formed from an acid copolymer having a starting melt index of greater than 180 g/10 min.@190° C. with a 2160 g load. The moisture vapor barrier layer has a moisture vapor transmission rate that is lower than that of at least one of the first layer and/or the second layer.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: August 30, 2016
    Assignee: Acushnet Company
    Inventors: Mark L. Binette, John D. Farrell
  • Patent number: 9409060
    Abstract: A multilayer solid golf ball may include a core formed from a highly neutralized polymer and a cover surrounding the core. The ball may also include an enclosing layer disposed between the core and the cover, the enclosing layer having a thermal conductivity of 0.12 W/m-K or less.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: August 9, 2016
    Assignee: NIKE, Inc.
    Inventors: Hideyuki Ishii, Yutaka Kabeshita, Hsin Cheng, Chien-Hsin Chou, Chen-Tai Liu
  • Patent number: 9409057
    Abstract: Multi-layered golf balls having at least one layer made of polyamide/acid anhydride-modified polyolefin blended compositions are provided. Preferably, a transparent polyamide is used. In one version, the composition comprises a blend of polyamide, acid anhydride-modified polyolefin, and plasticizer. The golf ball includes a core having at least one layer and a cover having at least one layer. The polyamide/acid anhydride-modified polyolefin composition may be used to form any core, cover, or other layer in the golf ball. In one version, the polyamide/acid anhydride-modified polyolefin composition is used to form the outer core layer, and a rubber composition is used to form the inner core.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: August 9, 2016
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, David A. Bulpett, Robert Blink, Mark L. Binette, Brian Comeau
  • Patent number: 9403064
    Abstract: A golf ball is provided that may include one or more structural layers, including an outermost structural layer having an outer surface. The ball may also include a primer coating applied to the entire outer surface of the outermost structural layer. In addition, the ball may include indicia applied on the primer coating in a localized area. Further, the ball may include an intermediate coating applied in the localized area over the indicia, wherein the intermediate coating is formulated to prevent alteration of the indicia by the application of the intermediate coating. A top coating may be applied over the entire ball, including the primer coating and the localized area including the intermediate coating.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 2, 2016
    Assignee: NIKE, Inc.
    Inventor: Arthur P. Molinari
  • Patent number: 9387365
    Abstract: Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. At least one of the layers is formed from a thermoplastic polyamide composition, comprising a blend of about 40 to about 99% by weight polyamide and about 1 to about 60% by weight fatty acid amide. Preferably, the ball has a dual core construction. A rubber composition is preferably used to form the outer core layer and the polyamide composition is preferably used to form the inner core. The flex modulus of the polyamide composition is preferably at least 15% greater than the flex modulus of the rubber composition.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: July 12, 2016
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, David A. Bulpett, Brian Comeau, Mark L. Binette, Robert Blink