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公开(公告)号：US20220032127A1
公开(公告)日：2022-02-03
申请号：US17506181
申请日：2021-10-20
IPC分类号： A63B37/00 , C08L75/04 , C08G18/32 , C08G18/73 , C09D175/08 , C08G18/66 , C08G18/10 , C08K7/26 , C08G18/48
摘要： An object of the present invention is to provide a golf ball having excellent spin performance on approach shots under a wet condition and excellent spin performance on approach shots under a condition that there is grass between the golf ball and the dub face. The present invention provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body, wherein an outermost layer of the paint film located at the outermost layer of the golf ball contains a base resin and a porous filler, the base resin contains a polyurethane obtained by a reaction between (A) a polyisocyanate composition and (B) a polyol composition containing a urethane polyol as a polyol component, the porous filler contains SiO2 in an amount of 50 mass % or more as a constituent component, and a loss tangent (tan δ) of the outermost layer of the paint film measured with a dynamic viscoelasticity measuring apparatus under following conditions has a peak temperature in a range of from −43° C. to 40° C.
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公开(公告)号：US10065092B2
公开(公告)日：2018-09-04
申请号：US15159933
申请日：2016-05-20
发明人： Sho Goji , Chiemi Mikura , Kazuyoshi Shiga , Kuniyasu Horiuchi , Toshiyuki Tarao , Hidetaka Inoue , Hitoshi Oyama , Hiroshi Hasegawa
摘要： An object of the present invention is to provide a golf club grip having excellent adhesion between the grip body and the grip end thereof, and excellent durability. The present invention provides a golf club grip comprising a cylindrical grip body having a cylindrical inner layer and a cylindrical outer layer covering the cylindrical inner layer, and a grip end provided on an butt side end of the cylindrical grip body, wherein the cylindrical outer layer is interposed in at least a part of a space between a butt side end edge of the cylindrical inner layer and the grip end.
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公开(公告)号：US11872451B2
公开(公告)日：2024-01-16
申请号：US17506181
申请日：2021-10-20
IPC分类号： A63B37/00 , C09D175/08 , C08K3/36 , C08L75/04 , C08G18/32 , C08G18/73 , C08G18/66 , C08G18/10 , C08K7/26 , C08G18/48 , C09D7/61 , C08G18/75 , C08G18/12 , C08K3/34
CPC分类号： A63B37/0037 , A63B37/003 , A63B37/0041 , A63B37/0047 , A63B37/0075 , A63B37/0096 , A63B37/00221 , A63B37/00222 , C08G18/10 , C08G18/3203 , C08G18/4854 , C08G18/6677 , C08G18/73 , C08K7/26 , C08L75/04 , C09D7/61 , C09D175/08 , C08G18/12 , C08G18/755 , C08K3/34 , C08K3/36 , C09D175/08 , C08K3/36 , C08G18/10 , C08G18/792 , C08G18/10 , C08G18/7831 , C08G18/10 , C08G18/8025
摘要： An object of the present invention is to provide a golf ball having excellent spin performance on approach shots under a wet condition and excellent spin performance on approach shots under a condition that there is grass between the golf ball and the dub face. The present invention provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body, wherein an outermost layer of the paint film located at the outermost layer of the golf ball contains a base resin and a porous filler, the base resin contains a polyurethane obtained by a reaction between (A) a polyisocyanate composition and (B) a polyol composition containing a urethane polyol as a polyol component, the porous filler contains SiO2 in an amount of 50 mass % or more as a constituent component, and a loss tangent (tan δ) of the outermost layer of the paint film measured with a dynamic viscoelasticity measuring apparatus under following conditions has a peak temperature in a range of from −43° C. to 40° C.
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公开(公告)号：US11358032B2
公开(公告)日：2022-06-14
申请号：US16549182
申请日：2019-08-23
发明人： Kazuya Kamino , Hidetaka Inoue , Toshiyuki Tarao
摘要： 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 μm and not greater than 50 μm.
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公开(公告)号：US10894190B2
公开(公告)日：2021-01-19
申请号：US16436539
申请日：2019-06-10
发明人： Mami Tanaka , Toshiyuki Tarao
摘要： An object of the present invention is to provide a golf ball exhibiting good shot feeling and excellent resilience. The present invention provides a golf ball comprising a spherical core and one or more cover layers disposed outside the spherical core, wherein at least one layer of the cover layers contains: (A) a base resin containing (a-1) an ionomer resin and having a material hardness of 59 or more in Shore D hardness; and (B) a polyrotaxane having a cyclodextrin with at least a part of hydroxyl groups of the cyclodextrin being modified with a caprolactone chain having a carboxyl group at a terminal of the caprolactone chain, a linear molecule piercing through a cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin.
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公开(公告)号：US10806969B2
公开(公告)日：2020-10-20
申请号：US16206659
申请日：2018-11-30
IPC分类号： A63B37/00 , C09D175/08 , C09D105/16 , C08G83/00 , C08G18/48 , C08G18/62 , C08G18/79 , C08G18/24 , C08G18/40 , C08G18/42 , C08G18/00
摘要： An object of the present invention is to provide a golf ball showing increased controllability on approach shots for less than 40 yards and showing excellent shot feeling. In the inventive golf ball, the paint film is formed from a curing type paint composition including: a base material containing a polyrotaxane, and a curing agent containing a polyisocyanate, and wherein the polyrotaxane has a cyclodextrin, a linear molecule included in a cyclic structure of the cyclodextrin in a manner of piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both ends of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.
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公开(公告)号：US10751576B2
公开(公告)日：2020-08-25
申请号：US16653105
申请日：2019-10-15
发明人： Toshiyuki Tarao , Mami Tanaka
摘要： An object of the present invention is to provide a golf ball having excellent shot feeling and durability. The present invention provides a golf ball comprising a constituent member containing a crosslinked rubber component and resin fine particles, wherein the resin fine particles contain a polyrotaxane component having a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, wherein at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via a —O—C3H6—O— group.
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公开(公告)号：US10525310B2
公开(公告)日：2020-01-07
申请号：US16155522
申请日：2018-10-09
发明人： Mami Tanaka , Toshiyuki Tarao , Hidetaka Inoue
IPC分类号： A63B37/12 , A63B37/00 , A63B102/32
摘要： A golf ball 2 includes a main body 4 and a paint layer 6 positioned outside the main body 4. The paint layer 6 includes an inner layer 14 and an outer layer 16 positioned outside the inner layer 14. When an indentation depth (nm) is measured on a cross-section along a plane passing through a central point of the golf ball 2 when a force of 30 mgf is applied to the cross-section in a direction perpendicular to the cross-section, an indentation depth Di on a cross-section of the inner layer 14 is smaller than an indentation depth Do on a cross-section of the outer layer 16. A thickness To of the outer layer 16 is smaller than a thickness Ti of the inner layer 14.
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公开(公告)号：US10201731B2
公开(公告)日：2019-02-12
申请号：US15812714
申请日：2017-11-14
发明人： Kohei Mimura , Toshiyuki Tarao , Hidetaka Inoue
IPC分类号： A63B37/00 , A63B37/14 , C08J7/04 , B32B25/04 , B32B25/14 , B29C45/14 , B29K9/00 , B29L31/54 , B29K75/00
摘要： A golf ball 2 includes a core 4, a cover 8 positioned outside the core 4, and a paint film 10 positioned outside the cover 8. The paint film 10 includes an inner layer 12 and an outer layer 14 positioned outside the inner layer 12. A 10% modulus Mo of the outer layer 14 is lower than a 10% modulus Mi of the inner layer 12. A difference (Mi-Mo) between the modulus Mi and the modulus Mo is not less than 25.0 kgf/cm2. The cover 8 has a Shore D hardness Hc of not less than 50 and not greater than 65. The cover 8 has a thickness Tc of not less than 0.80 mm and not greater than 1.80 mm.
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公开(公告)号：US11975242B2
公开(公告)日：2024-05-07
申请号：US18077562
申请日：2022-12-08
CPC分类号： A63B37/0039 , A63B37/0012 , A63B37/0031 , A63B37/0076 , A63B37/0024
摘要： An object of the present disclosure is to provide a golf ball having good shot feeling and excellent durability and not having lowered resilience even if a hard cover material is used. The present disclosure provides a golf ball comprising a spherical core, and a cover disposed outside the spherical core and composed of one or more layers, wherein at least one cover layer contains (A) a base resin, and (B) at least one member selected from the group consisting of a polyrotaxane, a polyethylene oxide, a polypropylene oxide, a polycaprolactone and a liquid polymer, and Sa×Spc≥100 wherein Sa (μm) is an arithmetic mean roughness of a surface of a cut plane of the cover, and Spc (mm−1) is an arithmetic mean curvature of a summit of the surface of the cut plane of the cover.
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