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公开(公告)号：US20220251347A1
公开(公告)日：2022-08-11
申请号：US17617375
申请日：2020-05-29
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Yoshihiko KOMORI , Tatsuya MIYAZAKI
Abstract: Provided is a tire which provides improved overall performance in terms of wet grip performance and abrasion resistance. Included is a tire including a tread containing a rubber composition, the rubber composition containing at least one rubber component and at least one silane coupling agent having a sulfur content of 10% by mass or higher, the rubber composition having an ash content of 36% by mass or higher, the rubber composition having a sulfur content of 1.0% by mass or lower when measured after acetone extraction.
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公开(公告)号：US20160046790A1
公开(公告)日：2016-02-18
申请号：US14826330
申请日：2015-08-14
Applicant: SUMITOMO RUBBER INDUSTRIES LTD.
Inventor： Yoshihiko KOMORI
CPC classification number: C08K5/378 , B60C1/00 , B60C1/0025 , B60C2001/005 , B60C2001/0066 , C08K3/04 , C08K3/22 , C08K2003/2296 , C08K2201/006 , C08L7/00 , C08L9/00
Abstract: An unvulcanized tire includes an inner member including a rubber composition. The composition includes rubber component, carbon black and sulfide compound. The rubber component includes isoprene-based rubber, the sulfide compound of formula (I), where R1 represents a hydrogen atom, a linear or branched alkyl or alkenyl group, or a cyclic alkyl or alkenyl group, A represents O, S, NH or NR2, R2 represents a linear or branched alkyl or alkenyl group, or a cyclic alkyl or alkenyl group, n represents a whole number of 1 to 6, and x represents a whole number of 1 to 4, the carbon black includes carbon black A having nitrogen adsorption specific surface area of less than 50 m2/g in content of from 5 to 55 parts by mass and carbon black B having nitrogen adsorption specific surface area of 50 m2/g or greater in content of from 0 to 30 parts by mass.
Abstract translation: 未硫化轮胎包括包含橡胶组合物的内部构件。 该组合物包括橡胶组分，炭黑和硫化物。 橡胶组分包括异戊二烯基橡胶，式（I）的硫化物化合物，其中R 1表示氢原子，直链或支链烷基或烯基或环状烷基或烯基，A表示O，S，NH或 NR2，R2表示直链或支链烷基或烯基或环状烷基或烯基，n表示1〜6的整数，x表示1〜4的整数，碳黑包括具有 氮吸附比表面积小于50m 2 / g，含量为5〜55质量份，碳黑B的氮吸附比表面积为50m 2 / g以上，含量为0〜30质量份。
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公开(公告)号：US20210162268A1
公开(公告)日：2021-06-03
申请号：US17105802
申请日：2020-11-27
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Kai HAYASHI , Takahiro SHIGEMITSU , Kazuyoshi SHIGA , Yoshihiko KOMORI , Toshiyuki TARAO , Masatoshi YOKOTA
Abstract: An object of the present invention is to provide a golf ball having excellent color development stability. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a resin composition containing a first base resin and a fluorescent pigment, and the fluorescent pigment has a number-based cumulative median size of 2.5 μm or more.
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公开(公告)号：US20240255477A1
公开(公告)日：2024-08-01
申请号：US18413722
申请日：2024-01-16
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Yuko IWASAKI , Yoshihiko KOMORI , Yumi KITAURA , Hiroaki YAMADA
CPC classification number: G01N30/8634 , G01N30/8682 , G01N33/445 , G01N2030/025
Abstract: A method for estimating a state of wax in a rubber compound according to a first aspect includes the following: acquiring a chromatogram of an extracted component, by separating components thereof, in which the wax is extracted from the rubber compound including the wax; and deriving a distribution of normal hydrocarbons in the wax based on the chromatogram.
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