Containing Metal Patents (Class 473/372)
  • Patent number: 10500444
    Abstract: Golf ball incorporating thermoplastic blend of (i) ionomer(s); (ii) different thermoplastic polymer(s) selected from thermoplastic polyurethane(s), thermoplastic urea(s), and/or thermoplastic urea-urethane hybrid(s); and (iii) polyester elastomer(s) and/or polyamide elastomer(s) (“PEPA”). Ionomer is present in amount of about 45 wt % or greater and PEPA present in amount of from about 2 wt % to about 35 wt %. Thermoplastic polymer(s) 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 %. Ionomer amount may be greater than amount of thermoplastic polymer. Thermoplastic polymer may be a polyurethane present in amount of greater than 20 wt % and to about 40 wt %; while the PEPA is present in amount of from about 5 wt % to about 30 wt %. PEPA is sometimes present in an amount of from about 15 wt % to about 35 wt %.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: December 10, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Michael Michalewich, Mark L. Binette
  • Patent number: 10441851
    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: May 3, 2019
    Date of Patent: October 15, 2019
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 10369419
    Abstract: The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition containing (A) a base rubber, (B) an organic peroxide, and (C) water and/or a metal monocarboxylate, and has a hysteresis loss of 50% or less when compressed at a load cell speed of 500 mm/min and under a constant load of 5,000 N.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: August 6, 2019
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Kae Ilzuka, Tsuyoshi Nakajima, Yuichiro Ozawa
  • Patent number: 10343022
    Abstract: A golf ball 2 includes a core 4, a mid layer 6 positioned outside this core, and a cover 8 positioned outside this mid layer. When a total thickness of the mid layer 6 and the cover 8 is denoted by L (mm), a Shore C hardness at a point A away from a surface of the core 4 toward a central point of the core 4 by 5L (mm) is denoted by Ha, a Shore C hardness at a point B away from the surface of the core 4 toward the central point of the core 4 by 2.5L (mm) is denoted by Hb, and a Shore C hardness at the central point of the core 4 and Shore C hardnesses of the mid layer 6 and the cover 8 are denoted by H0, Hm, and Hc, respectively; the golf ball 2 satisfies Hc?Hb>0, Hm?H0>0, and Ha?Hm>0.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: July 9, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hironori Takihara, Takahiro Sajima
  • Patent number: 10300342
    Abstract: A rubber composition for golf balls includes (A) a base rubber, (B) two different metal salts of ?,?-unsaturated carboxylic acids having 3 to 8 carbon atoms, (C) a metal salt in which at least one bonding site is a fatty acid of 9 or more carbon atoms, and (D) a crosslinking initiator. Letting component (B) include (B-1) an unsaturated metal carboxylate in a high compounding weight and (B-2) an unsaturated metal carboxylate in a low compounding weight, the ratio (B-2)/(B-1) is from 4 to 20 wt % and the ratio (B-2)/(C) is from 20 to 115 wt %. By using this rubber composition in a golf ball core, the golf ball can be endowed with both good spin properties and good durability on impact.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: May 28, 2019
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Tsuyoshi Nakajima
  • Patent number: 10286258
    Abstract: A golf ball 2 includes a core 4, a first mid layer 6, a second mid layer 8, and a cover 12. The core 4 includes a center 18 and an envelope layer 20. The center 18 is formed by crosslinking a first rubber composition, and the envelope layer 20 is formed by crosslinking a second rubber composition. The first rubber composition or the second rubber composition includes a base rubber, a co-crosslinking agent, a crosslinking initiator, and an acid and/or a salt. The co-crosslinking agent is: (1) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms; and/or (2) a metal salt of an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms. A hardness Hm2 of the second mid layer 8 is greater than a hardness Hm1 of the first mid layer 6. The hardness Hm2 is greater than a hardness Hc of the cover 12.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: May 14, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kazuhiko Isogawa, Kosuke Tachibana
  • Patent number: 10279219
    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: August 3, 2018
    Date of Patent: May 7, 2019
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 10272296
    Abstract: A golf ball 2 includes a core 4, amid layer 6, a reinforcing layer 8, and a cover 10. The core 4 includes a center 12 and an envelope layer 14. The envelope layer 14 is formed by a rubber composition being crosslinked. The rubber composition includes a base rubber (a), a co-crosslinking agent (b), a crosslinking initiator (c), and an acid and/or a salt (d). The co-crosslinking agent (b) is: (b1) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms; or (b2) a metal salt of an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 30, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kazuhiko Isogawa, Kosuke Tachibana
  • Patent number: 10213655
    Abstract: An object of the present invention is to provide a golf ball having an excellent initial velocity when being hit at a head speed of 50 m/sec and an improved initial velocity when being hit at a head speed of 40 m/sec. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a rebound equivalence energy ratio (R40) ranging from 65.50% to 99.0% at a deformation amount of 7%, and a rebound equivalence energy ratio (R50) ranging from 20.0% to 70.0% at a deformation amount of 19%, in a compression test (measurement temperature: ?70° C., compression speed: 30 mm/min) applying a load to the golf ball along a radial direction of the golf ball.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 26, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hikaru Nagakura, Kazuyoshi Shiga, Ryota Sakamine, Takahiro Shigemitsu
  • Patent number: 10168289
    Abstract: A method for evaluating the crosslink concentration in a crosslinked rubber is provided. The present invention relates to a method for evaluating the crosslink concentration in a crosslinked rubber by small-angle X-ray scattering or small-angle neutron scattering using measurement samples prepared by swelling the crosslinked rubber to different degrees of swelling.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: January 1, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tomomi Masui, Hiroyuki Kishimoto
  • Patent number: 10150867
    Abstract: A cold shrink article made from a composition comprising (A) a silicone rubber; (B) an ethylene/?-olefin interpolymer; (C) a filler; and (D) an ?,?-unsaturated carboxylic acid. The composition may optionally include additives selected from the group consisting of plasticizer, peroxide curing agent, antioxidant, process additives, flame retardant and combinations thereof.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 11, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav Sengupta, Jeffrey Cogen
  • Patent number: 10092795
    Abstract: The present invention relates to golf balls having at least one layer formed from a very neutralized polymer composition. In particular, the compositions of the invention include at least one acid copolymer and a sufficient amount of cation source to neutralize about 70 percent to about 80 percent of the acid moieties. The invention also relates to methods of making the compositions and golf ball constructions that incorporate the compositions of the invention in at least a portion thereof.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: October 9, 2018
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Robert Blink, David A. Bulpett, Brian Comeau
  • Patent number: 10080924
    Abstract: An object of the present invention is to provide a golf ball having a novel core structure and traveling a great flight distance on driver shots. The present invention provides a golf ball comprising a core composed of a spherical center and an envelope layer and at least one cover layer disposed outside the core, wherein the spherical center has an internal hardness difference between a maximum hardness and a minimum hardness of less than 5 in JIS-C hardness, the envelope layer is formed from an envelope 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, (c) an crosslinking initiator and (d) an acid and/or a salt thereof, and the outermost cover layer has a highest hardness among the constituent members of the golf ball.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: September 25, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takahiro Sajima
  • Patent number: 10035045
    Abstract: Disclosed herein are heterogeneous golf ball compositions comprising a matrix formed from a thermosetting polymer composition and discrete particles of crosslinked rubber dispersed within the matrix.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: July 31, 2018
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Brian Comeau, Michael J. Sullivan, Mark L. Binette, Robert Blink
  • Patent number: 9975008
    Abstract: In a golf ball having a core and a cover of one or more layers, letting the core diameter be D (mm), the cover thickness be T (mm) and the core and ball deflections when compressed under a final load of 1,275 N (130 kgf) from an initial load state of 98 N (10 kgf) be 5 (mm) and B (mm), the following conditions are satisfied: (1) 30?D/T?24, (2) 3.9?E/T?3.0, and (3) 1.18?E/B?1.09. This golf ball provides an excellent flight performance and a soft feel at impact when used by golfers whose head speed is not very fast, such as senior golfers and women golfers. The ball also has a high durability to cracking on repeated impact.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: May 22, 2018
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Hideo Watanabe
  • Patent number: 9956456
    Abstract: Provided is a golf ball comprising a spherical core including an inner layer and an outer layer, an intermediate layer and a cover, wherein a difference (HX+1?HX?1) is 0 or more in Shore C hardness, a surface hardness (HX+Y) of the spherical core is more than 70 in Shore C hardness, an angle ? of a hardness gradient of the inner layer is 0° or more, a difference (???) between the angle ? and an angle ? of a hardness gradient of the outer layer is 0° or more, the intermediate layer has a material hardness (Hm) ranging from 65 to 80 in Shore D hardness, and the intermediate layer has a highest hardness among the constituent members of the golf ball.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 1, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuya Kamino, Kosuke Tachibana
  • Patent number: 9855467
    Abstract: An object of the present invention is to provide a golf ball showing a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein when JIS-C hardness of the spherical core is measured at points located at distances of 0% (core center), 37.5%, 75.0% and 100% (core surface) from the core center of the spherical core, a hardness difference (Hs?Ho) between a surface hardness (Hs) thereof and a center hardness (Ho) thereof is 20 or more, a ratio ((H37.5?Ho)/(H75.0?Ho)) of a hardness difference (H37.5?Ho) to a hardness difference (H75.0?Ho) is 0.6 or less, and a compression deformation amount (D (mm)) of the spherical core and the 37.5% point hardness (H37.5) satisfy a relation of H37.5??9×D+95.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: January 2, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Ayaka Shindo, Chiemi Mikura, Ryota Sakamine, Sho Goji
  • Patent number: 9757620
    Abstract: A cured elastomer golf ball component is made by heating an elastomer compound containing an ethylenically unsaturated elastomer, an ethylenically unsaturated monomer, and first and second free radical initiators to a first crosslinking temperature T1 in a compression mold and partially crosslinking the elastomer, then heating to a second crosslinking temperature T2 and curing the elastomer component of the golf ball. Either: (i) the first initiator has a half-life of about 0.2-5 minutes at T1, the second initiator has a half-life of about 0.2-5 minutes at T2, and T2 is higher T1 by at least about 30° C.; or (ii) the second initiator's one-minute half-life temperature is at least about 30° C. higher than the first initiator's one-minute half-life temperature, T1 is within about 20° C. of the first initiator's one-minute half-life temperature, and T2 is within about 20° C. of the second initiator's one-minute half-life temperature.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: September 12, 2017
    Assignee: Feng Tay Enterprises Co., Ltd.
    Inventor: John C. Chen
  • Patent number: 9682284
    Abstract: A golf ball 2 includes a core 4, a first mid layer 10, a second mid layer 12, a third mid layer 14, and a cover 8. A volume Vinm and a Shore D hardness Hinm of the first mid layer, a volume Vm and a Shore D hardness Hm of the second mid layer, a volume Voum and a Shore D hardness Houm of the third mid layer, a volume Vc and a Shore D hardness Hc of the cover, and a volume V of an entirety of the ball meet: (a) Hinm<Hm>Houm>Hc, (b) Vinm<Vm>Voum>Vc, (c) Hm?Hc>25, (d) (Vinm+Vm+Voum+Vc)/V<0.40, (e) Vm/Vc>1.50, and (f) (Vm*Hm)/(Vc*Hc)>3.0.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 20, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuhiko Isogawa, Kosuke Tachibana
  • Patent number: 9675845
    Abstract: Golf ball having a core and a cover of one or more layers, the core being formed of a material molded under heat from a rubber composition including a base rubber, an organic peroxide, and water and/or a metal monocarboxylate. Defining the tan ? slope as (tan ?10?tan ?1)/(10%?1%), where tan ?1 and tan ?10 are the loss tangents at dynamic strains of, respectively, 1% and 10% when the loss tangents of the core center and the core surface are measured at ?12° C. and 15 Hz, the difference between the tan ? slopes at the core surface and the core center is larger than 0.002. Because a core material which undergoes little decrease in resilience over time and experiences little energy loss can be obtained, the golf ball maintains a good rebound, has a reduced spin rate and thus is able to achieve an increased distance.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: June 13, 2017
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Tsuyoshi Nakajima, Yuichiro Ozawa
  • Patent number: 9675846
    Abstract: A golf ball comprising an inner core layer including a thermoplastic material and having a geometric center hardness less than the surface hardness to define a positive hardness gradient. An outer core layer is formed over the inner core. The outer core includes a thermoset rubber composition and has an inner surface hardness less than an outer surface hardness to define a positive hardness gradient. A cover layer is formed over the outer core layer. The cover layer includes an inner cover layer and an outer cover layer. The thermoplastic material of the core includes an acid copolymer of ethylene and an ?,?-unsaturated carboxylic acid, optionally a softening monomer comprising alkyl acrylate or methacrylate; a plasticizer; an organic acid or salt thereof; and a cation source present in an amount sufficient to neutralize from about 70 to about 100% of all acid groups present in the material.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 13, 2017
    Inventors: Michael J. Sullivan, Mark L. Binette, Robert Blink, David Bulpett, Brian Comeau
  • Patent number: 9607525
    Abstract: Golf performance and equipment characteristics may be determined by analyzing the impact between a golf ball and an impacting surface. In some examples, the impacting surface may be a golf club face. The impact between the golf ball and the surface may be measured based on sound and/or motion sensors (e.g., gyroscopes, accelerometers, etc.). Based on motion and/or sound data, various equipment-related information including golf ball compression, club head speed and impact location may be derived. Such information and/or other types of data may be conveyed to a user to help improve performance, aid in selecting golf equipment and/or to insure quality of golfing products.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 28, 2017
    Assignee: NIKE, Inc.
    Inventors: Nicholas A. Leech, Arthur Molinari
  • Patent number: 9573021
    Abstract: An object of the present invention is to provide a golf ball excellent in shot feeling, flight distance and durability. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a core rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (x) a crosslinked rubber powder; (x) the crosslinked rubber powder contains (x1) soft particles with a hardness difference (Hs?Hp)between a particle hardness (Hp) of the soft particles and a surface hardness (Hs) of the spherical core being 20 or more in JIS-C hardness, and a hardness difference (Hs5?Hp) between the particle hardness (Hp) of the soft particles and a hardness (Hs5) at 5 mm point inside the surface of the spherical core being 15 or more in JIS-C hardness; and the core rubber composition contains (x1) the soft particles in an amount of 1.0 mass % or more.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: February 21, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Ryota Sakamine, Katsumi Terakawa
  • Patent number: 9566475
    Abstract: A golf ball has an inner core layer including a thermoplastic highly-neutralized ionomer and having a geometric center hardness less than a surface hardness to define a first positive hardness gradient. An outer core layer is formed about the inner core and includes a homogenous thermoset composition. The outer core has an interior hardness less than an outer surface hardness to define a second positive hardness gradient. An inner and outer cover layers are disposed about outer core layer. The first and second hardness gradients each have a slope and the slope of the second hardness gradient is less than the slope of the first hardness gradient such that a ratio of the first and second slopes is 0.8 to 0.85.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: February 14, 2017
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau
  • Patent number: 9566476
    Abstract: An object of the present invention is to provide a golf ball excellent in flying performance, in particular, to provide a golf ball traveling a great flight distance. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, 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, (c) a crosslinking initiator, and (d) a carboxylic acid, provided that the rubber composition further contains (e) 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.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: February 14, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Chiemi Mikura, Kazuhisa Fushihara, Mikio Yamada, Shun Kurihara, Ayaka Shindo
  • Patent number: 9498681
    Abstract: An object of the present invention is to provide a golf ball comprising a core formed from a rubber composition containing (d) a carboxylic acid and/or a salt thereof and traveling a great flight distance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, 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, (c) a crosslinking initiator, (d) a carboxylic acid and/or a salt thereof and two or more kinds of (e) organic sulfur compounds, provided that the rubber composition further contains (f) a metal compound in case of containing only (b) the ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 22, 2016
    Assignee: DUNLOP SPORTS CO., LTD.
    Inventors: Satoko Okabe, Masatoshi Yokota, Koichi Fujisawa, Yusuke Tanigawa
  • Patent number: 9486673
    Abstract: An object of the present invention is to provide a golf ball having a low spin rate on driver shots and excellent in flight distance performance. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, 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, (c) a crosslinking initiator, and (d) a salt of a carboxylic acid, provided that the rubber composition further contains (e) 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.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: November 8, 2016
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Chiemi Mikura, Kazuhisa Fushihara, Mikio Yamada, Shun Kurihara, Ayaka Shindo
  • Patent number: 9433829
    Abstract: A golf ball includes a thermoplastic inner core and a thermoset outer core layer. The inner core has a surface hardness of about 40 to 80 Shore C and a center hardness of about 30 to 75 Shore C, the center hardness being less than the surface hardness to define a first positive hardness gradient. The cover includes an inner cover layer and an outer cover layer. The thermoplastic inner core comprises a highly-neutralized ionomer including an acid copolymer of ethylene and an ?,?-unsaturated carboxylic acid; a plasticizer; an organic acid or salt thereof; and a cation source present in an amount sufficient to neutralize from about 70 to 100% of the acid groups present. The outer core layer includes a polybutadiene rubber and has a surface hardness greater than an interior hardness to define a positive hardness gradient of less than about 25 Shore C.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: September 6, 2016
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, Robert Blink, David A. Bulpett
  • Patent number: 9409059
    Abstract: A golf ball has a core, core center, or core layer containing a thermoset elastomer and a polyurethane prepared by combining a thermosetting elastomer and an isocyanate-functional polyurethane, which may be an elastomeric polyurethane, then curing the thermosetting elastomer.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: August 9, 2016
    Assignee: NIKE, Inc.
    Inventors: Yasushi Ichikawa, Thomas J. Kennedy, III
  • Patent number: 9399337
    Abstract: An injection molded product formed from an inner layer, or substrate, to which an aesthetic IMD layer is bonded during a first injection molding process, leaving a portion of the substrate exposed about the perimeter(s) of the substrate. A transparent outer layer, or overmold, is then injection molded over the top of the IMD layer and substrate, bonding substantially to the IMD layer and to the substrate where it remains exposed following the first injection molding. The process of forming a product through the disclosed two-step injection molding process creates a customizable, aesthetic product with an aesthetic IMD layer completely encapsulated between the substrate and a clear overmold in such a way to protect the IMD layer from the environment in which the product is used.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: July 26, 2016
    Inventor: Timonthy P. Curnutt
  • Patent number: 9371436
    Abstract: The present invention provides a resin composition for golf balls that is excellent in resilience, flexibility, and fluidity. The present invention also provides a golf ball excellent in resilience, shot feeling, and productivity. The present invention includes a resin composition for golf balls including: (A) at least one selected from the group consisting of (a-1) a bipolymer of an olefin and a C3-C8 ?,?-unsaturated carboxylic acid, (a-2) a metal ion-neutralized product of a bipolymer of an olefin and a C3-C8 ?,?-unsaturated carboxylic acid, (a-3) a terpolymer of an olefin, a C3-C8 ?,?-unsaturated carboxylic acid, and an ?,?-unsaturated carboxylic acid ester, and (a-4) a metal ion-neutralized product of a terpolymer of an olefin, a C3-C8 ?,?-unsaturated carboxylic acid, and an ?,?-unsaturated carboxylic acid ester; (B) a compound containing an unsaturated hydrocarbon chain, a cationic moiety, and an anionic moiety in its molecule; and (C) an unsaturated fatty acid.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: June 21, 2016
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuyoshi Shiga, Yasuo Kubota, Takahiro Shigemitsu
  • Patent number: 9364721
    Abstract: The invention provides a golf ball having a core and a cover of at least one layer. The core has a cross-sectional hardness which, letting (H?14) be a JIS-C hardness at a position 14 mm in from a surface toward a center of the core, (H?8) be a JIS-C hardness at a position 8 mm in from the surface toward the center of the core, (H?6) be a JIS-C hardness at a position 6 mm in from the surface toward the center of the core, and (H?4) be a JIS-C hardness at a position 4 mm in from the surface toward the center of the core, satisfies the formulas (1) H?14<70, (2) H?8<72, (3) H?6<75, and (3) H?4?H?8>8.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: June 14, 2016
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Tsuyoshi Nakajima, Kazufumi Tabata, Yuichiro Ozawa, Takashi Ohira, Hiroshi Higuchi
  • Patent number: 9345934
    Abstract: A golf ball 2 includes a spherical core 4 and a cover 6 covering the core 4 and including an inner cover 8 and an outer cover 10 positioned outside the inner cover 8. The core 4 is obtained by crosslinking a rubber composition. The rubber composition includes a base rubber (a), a co-crosslinking agent (b), a crosslinking initiator (c), and a carboxylate (d). The co-crosslinking agent (b) is: (b1) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms; or (b2) a metal salt of an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms. The amount of the carboxylate (d) is equal to or greater than 1 parts by weight but less than 40 parts by weight per 100 parts by weight of the base rubber (a). A hardness of an innermost layer of the cover is equal to or less than a surface hardness of the core.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: May 24, 2016
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Takahiro Sajima, Hirotaka Nakamura
  • Patent number: 9314671
    Abstract: An object of the present invention is to provide a golf ball polyurethane composition excellent in resilience. Another object of the present invention is to provide a golf ball excellent in a shot feeling and resilience. The present invention provides a golf ball polyurethane composition comprising, as a resin component, a polyurethane elastomer including a polyisocyanate with at least two alicyclic hydrocarbon structures having 3 or more carbon atoms as a constituting component, and having a spin-lattice relaxation time (T1) of 13C nucleus of 7.3 seconds or less measured by a High resolution solid state nuclear magnetic resonance (NMR) method.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: April 19, 2016
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuyoshi Shiga, Ryo Murakami, Toshiyuki Tarao, Takahiro Shigemitsu
  • Patent number: 9309350
    Abstract: An object of the present invention is to provide a golf ball polyurethane composition excellent in resilience. Another object of the present invention is to provide a golf ball excellent in a shot feeling and resilience. The present invention provides a golf ball polyurethane composition comprising, as a resin component, a polyurethane elastomer including a polyisocyanate with at least two alicyclic hydrocarbon structures having 3 or more carbon atoms as a constituting component, and having a storage modulus E? (Pa) and a loss modulus E? (Pa) satisfying a following expression; log(E?/E?2)??6.08 when measured in a tensile mode using a dynamic viscoelasticity measuring apparatus.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: April 12, 2016
    Assignee: DUNLOP SPORTS CO., LTD.
    Inventors: Kazuyoshi Shiga, Ryo Murakami, Toshiyuki Tarao, Takahiro Shigemitsu
  • Patent number: 9283441
    Abstract: A golf ball 2 includes a spherical core 4 and a cover 6 covering the core 4. The cover 6 includes an inner cover 8 and an outer cover 10 positioned outside the inner cover 8. The core 4 is obtained by a rubber composition being crosslinked. The rubber composition includes a base rubber (a), a co-crosslinking agent (b), a crosslinking initiator (c), and a carboxylate (d). The co-crosslinking agent (b) is: (b1) an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms; or (b2) a metal salt of an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms. The amount of the carboxylate (d) is equal to or greater than 1 parts by weight but less than 40 parts by weight per 100 parts by weight of the base rubber (a). A hardness of an innermost layer of the cover is greater than a surface hardness of the core.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: March 15, 2016
    Assignee: SRI SPORTS LIMITED
    Inventors: Takahiro Sajima, Hirotaka Nakamura
  • Patent number: 9220946
    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 materials such as copper, steel, brass, tungsten, titanium, nickel, iron, tin, and bronze particles. The outer surface of the inner core preferably has a non-uniform structure and includes 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: February 3, 2014
    Date of Patent: December 29, 2015
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette
  • Patent number: 9205309
    Abstract: A golf ball 2 includes a core 4, a mid layer 6 positioned outside the core 4, a reinforcing layer 8 positioned outside the mid layer 6, and a cover 10 positioned outside the reinforcing layer 8. The core 4 is obtained by a rubber composition being crosslinked. The rubber composition includes a base rubber, a co-crosslinking agent, a crosslinking initiator, and a carboxylate. The co-crosslinking agent is: (1) an ?, ?-unsaturated carboxylic acid having 3 to 8 carbon atoms; and/or (2) a metal salt of an ?, ?-unsaturated carboxylic acid having 3 to 8 carbon atoms. The amount of the carboxylate is equal to or greater than 1.0 parts by weight but less than 40 parts by weight per 100 parts by weight of the base rubber. A hardness of the mid layer 6 is greater than a hardness of the cover 10.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: December 8, 2015
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuhiko Isogawa, Yoshiko Matsuyama, Kosuke Tachibana
  • Patent number: 9205303
    Abstract: The present invention is directed to a golf ball comprising a core, a cover and optionally an intermediate layer disposed between the core and the cover, wherein at least one of the core, the at least one intermediate layer, and the cover comprises at least one of an ionomer and an acid copolymer and has at least one treated region that is treated with and comprises a reaction product of an organometallic composition and the at least one ionomer and/or acid copolymer, such that: the at least one treated region has an internal property gradient; or at least two treated regions, in tandem, have an external property gradient; or the at least one treated region and an untreated region, in tandem, have an external property gradient.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: December 8, 2015
    Assignee: Acushnet Company
    Inventors: Robert Blink, David A. Bulpett
  • Patent number: 9199130
    Abstract: An object of the present invention is to provide a golf ball traveling a greater distance by improving the properties of the spherical core. The present invention provides a golf ball comprising a spherical core, and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing a base rubber, a co-crosslinking agent, a crosslinking initiator, a filler and a polynuclear aromatic organic sulfur compound or a derivative thereof, and the spherical core has a specific hardness distribution without decreasing hardness from a central point toward a surface of the spherical core in JIS-C hardness.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: December 1, 2015
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuhisa Fushihara, Kazuhiko Isogawa
  • Patent number: 9181408
    Abstract: A method of forming a golf ball includes forming a pair of thermoplastic hemispherical shells from an elastomer compound including an elastomer and first, second, and third free radical initiators, with the elastomer being pre-crosslinked to a first crosslinking density, then positioning a spherical component between the hemispherical shells and compression molding and curing the hemispherical shells to a second crosslinking density around the spherical component. The method uses three different crosslinking temperatures.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: November 10, 2015
    Assignee: NIKE, Inc.
    Inventor: John C. Chen
  • Patent number: 9180346
    Abstract: Multi-piece golf balls having a solid core made of a foamed composition and a cover are provided. Preferably, the core is dual-layered having has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer. Preferably, a polyurethane foam composition containing mineral filler particulate, for example, nanoclay particles, is used to form the foam center. The surrounding outer core layer may be made from non-foamed or foamed compositions. For example, polybutadiene rubber or highly neutralized olefin acid copolymers may be used in the outer core layer. The core layers have different hardness gradients and specific gravity values.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: November 10, 2015
    Assignee: Acushnet Company
    Inventors: Mark L. Binette, Brian Comeau, Michael Michalewich, Shawn Ricci, Michael J. Sullivan, Douglas S. Goguen
  • Patent number: 9095749
    Abstract: Disclosed herein are heterogeneous golf ball compositions comprising a thermoplastic polymer matrix and discrete particles of thermoplastic polymer dispersed within the matrix.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: August 4, 2015
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Michael J. Sullivan, Mark L. Binette, Brian Comeau, Robert Blink
  • Patent number: 9072943
    Abstract: Disclosed herein are heterogeneous golf ball compositions comprising a thermosetting polymer matrix and discrete particles of thermoplastic polymer dispersed within the matrix.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: July 7, 2015
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Michael J. Sullivan, Mark L. Binette, Brian Comeau, Robert Blink
  • Patent number: 9061181
    Abstract: An object of the present invention is to provide a golf ball having a spherical core with an outer-hard inner-soft structure formed from a rubber composition excellent in kneading workability. Another object of the present invention is to provide a golf ball traveling a great flight distance on driver shots. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, 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, (c) a crosslinking initiator, and (d) a basic metal salt of a fatty acid.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: June 23, 2015
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventor: Satoko Okabe
  • Patent number: 9044644
    Abstract: The invention provides a solid golf ball which has a core of at least one layer and a cover of at least one layer. At least one layer of the core is formed primarily of polybutadiene and includes at least 0.05 part by weight each of (I) a rubber powder obtained by granulating a rubber material containing acrylic acid or a metal salt of acrylic acid and (II) a polyurethane resin powder per 100 parts by weight of rubber component. At least one layer of the cover is formed primarily of polyurethane.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: June 2, 2015
    Assignee: BRIDGESTONE SPORTS CO., LTD.
    Inventor: Hirotaka Shinohara
  • Patent number: 9033823
    Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of highly neutralized polymer, and may include a blend of different highly neutralized polymers. The cover is a two layer cover, with a hard inner cover and a thermoplastic polyurethane outer cover. The ball as a whole has properties to maximize performance and aesthetic properties, such as feel and sound.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: May 19, 2015
    Assignee: NIKE, Inc.
    Inventors: Hideyuki Ishii, Yasushi Ichikawa, Arthur Molinari, Chen-Tai Liu
  • Publication number: 20150133235
    Abstract: Golf balls having one or more structural components that include a highly neutralized acid polymer with a high acid content and a uniformly increased density. The core of the golf ball may be made up of the highly neutralized acid polymer. The highly neutralized acid polymer may have desired hardness and flexural modulus values. The highly neutralized acid polymer enables the golf ball to provide consistent play characteristics.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 14, 2015
    Applicant: NIKE, INC.
    Inventors: Yasushi Ichikawa, Thomas J. Kennedy, III
  • Patent number: 9018294
    Abstract: Golf balls that have at least one layer formed from a cationic polyurea material. In particular, the compositions of the invention, which include a polymer backbone including urea linkages with cationic groups, may be formed from an isocyanate-containing component and an isocyanate-reactive component, at least one of which includes precursor cationic groups, in the presence of an alkylating, quaternizing, or ternarizing agent.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: April 28, 2015
    Assignee: Acushnet Company
    Inventors: Murali Rajagopalan, Shawn Ricci, Michael J. Sullivan, Kevin M. Harris, Pamela V. Arnold
  • Patent number: 9018295
    Abstract: Golf balls that have at least one layer formed from a cationic polyurea material. In particular, the compositions of the invention, which include a polymer backbone including urea linkages with cationic groups, may be formed from an isocyanate-containing component and an isocyanate-reactive component, at least one of which includes precursor cationic groups, in the presence of an alkylating, quaternizing, or ternarizing agent.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: April 28, 2015
    Assignee: Acushnet Company
    Inventors: Murali Rajagopalan, Shawn Ricci, Michael J. Sullivan, Kevin M. Harris, Pamela V. Arnold