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公开(公告)号：US20240390738A1
公开(公告)日：2024-11-28
申请号：US18633839
申请日：2024-04-12
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yasuo NAITO , Masayuki ONISHI , Kazuyoshi SHIGA , Hiroaki TANAKA , Takehiko HYODO
IPC: A63B37/00 , C09D175/08
Abstract: An object of the present disclosure is to provide a novel golf ball having excellent spin performance on approach shots. The present disclosure 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 at least one layer of the paint film contains a polyurethane as a resin component, the polyurethane is obtained by a reaction between a polyol composition containing a polyol and a polyisocyanate composition containing a polyisocyanate, and the polyol composition contains, as a polyol component, a urethane polyol having a structural unit derived from a polyether polycarbonate diol.
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公开(公告)号：US20220314080A1
公开(公告)日：2022-10-06
申请号：US17711416
申请日：2022-04-01
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yasuo NAITO , Kazuya KAMINO , Kazuyoshi SHIGA , Mariko HASHINOKUCHI , Hidetaka INOUE , Sho GOJI
IPC: A63B37/00 , C08G18/48 , C08G18/32 , C08G18/75 , C08G18/42 , C08G18/62 , C08G18/64 , C08G18/66 , C09D175/10
Abstract: An object of the present disclosure is to provide a golf ball from which stains are easily removed. The present disclosure 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 contains, as a base resin, a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition, and the outermost layer of the paint film has tackiness of less than 0.294 N measured with a friction tester.
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公开(公告)号：US20180022911A1
公开(公告)日：2018-01-25
申请号：US15549914
申请日：2015-10-27
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Yasuo NAITO , Shintaro TOMITA , Daisuke KUDO
Abstract: According to a tire comprising a CFRP comprising a matrix resin and a carbon fiber, in which the matrix resin comprises a resin component comprising 20 to 80% by mass of an epoxy resin and 20 to 80% by mass of a functional group-modified acrylonitrile butadiene copolymer, it is possible to provide a tire which is lightened while maintaining the strength of a tire with a steel cord and/or a bead wire.
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公开(公告)号：US20220355164A1
公开(公告)日：2022-11-10
申请号：US17733528
申请日：2022-04-29
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Masayuki ONISHI , Yasuo NAITO , Kazuyoshi SHIGA
IPC: A63B37/00 , C09D175/04 , C09D129/02
Abstract: An object of the present disclosure is to provide a novel golf ball having excellent spin performance on approach shots. The present disclosure provides a golf ball comprising a paint film, wherein a base resin constituting an outermost layer of the paint film is a polyurethane obtained by a reaction between (A) a polyol composition containing a polyol having a side chain and (B) a polyisocyanate composition, a loss modulus (E″) at a temperature of −50° C. is 2.0×108 Pa or more, and a loss tangent (tan δ) has a peak with a peak height of 0.1 or more and 0.5 or less in a temperature range of −60° C. or more and −20° C. or less, wherein the loss modulus (E″) and the loss tangent (tan δ) are obtained by measuring a dynamic viscoelasticity of the polyurethane under specific conditions.
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Patent Agency Ranking
公开(公告)号：US20220314079A1
公开(公告)日：2022-10-06
申请号：US17711353
申请日：2022-04-01
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yasuo NAITO , Kazuya KAMINO , Kazuyoshi SHIGA , Mariko HASHINOKUCHI , Hidetaka INOUE , Sho GOJI
Abstract: An object of the present disclosure is to provide a golf ball having excellent spin performance on approach shots. The present disclosure 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 contains, as a base resin, a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition, and the outermost layer of the paint film has tackiness of 0.294 N or more measured with a friction tester.
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公开(公告)号：US20220111260A1
公开(公告)日：2022-04-14
申请号：US17497213
申请日：2021-10-08
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yasuo NAITO , Masayuki ONISHI , Kazuyoshi SHIGA , Takahiro SHIGEMITSU
IPC: A63B37/00
Abstract: An object of the present invention is to provide a novel golf ball having excellent spin performance on approach shots. 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 and composed of at least one layer, wherein a base resin constituting an outermost layer of the paint film includes a polyurethane, and the polyurethane has a loss elastic modulus (E″) of 0.2×108 Pa or more at −50° C. and a loss tangent (tan δ) having a peak temperature of 0° C. or less, obtained by measuring dynamic viscoelasticity of the polyurethane under specific conditions.
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公开(公告)号：US20210275875A1
公开(公告)日：2021-09-09
申请号：US17191257
申请日：2021-03-03
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yasuo NAITO , Yuko OKA , Toshiyuki TARAO , Kazuyoshi SHIGA , Hidetaka INOUE , Kazuya KAMINO
IPC: A63B37/00 , C09D175/04 , C08G18/32 , C08G18/73
Abstract: An object of the present invention is to provide a golf ball having excellent spin performance on approach shots from the rough (under a condition that there is grass between the golf ball and the club face) and excellent stain resistance. 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 at least one layer of the paint film includes, as a base resin, a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition, and the polyol composition contains, as a polyol component, a polyrotaxane having at least two hydroxyl groups and a urethane polyol.
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公开(公告)号：US20240390739A1
公开(公告)日：2024-11-28
申请号：US18634169
申请日：2024-04-12
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yasuo NAITO , Masayuki ONISHI , Kazuyoshi SHIGA , Hiroaki TANAKA , Takehiko HYODO
IPC: A63B37/00 , C09D175/08
Abstract: An object of the present disclosure is to provide a golf ball from which stain such as mud or grass juice can be wiped off when the stain is adhered to the golf ball while the spin performance of the golf ball on approach shots is not substantially lowered. The present disclosure 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 at least one layer of the paint film contains a polyurethane as a resin component, and the polyurethane has a structural unit derived from a polyether polycarbonate diol.
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公开(公告)号：US20230310944A1
公开(公告)日：2023-10-05
申请号：US18128668
申请日：2023-03-30
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Takashi KAJIKAWA , Mami TANAKA , Yasuo NAITO , Hidetaka INOUE , Kazuyoshi SHIGA , Toshiyuki TARAO
CPC classification number: A63B37/00221 , A63B47/008 , C09D175/06 , C08G18/44 , C08G18/10 , C08G18/6484 , C08G18/755 , A63B2209/00
Abstract: An object of the present disclosure is to provide a golf ball which has excellent spin performance on approach shots and from which stain such as mud or grass juice can be wiped off when the golf ball has the stain adhered thereto. The present disclosure 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 includes, as a base resin, a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition, the polyol composition contains, as a polyol component, a polyrotaxane having at least two hydroxyl groups and a urethane polyol, and the outermost layer of the paint film has a tackiness of 0.294 N or more measured with a friction tester under specific conditions:
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