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公开(公告)号：US20160122944A1
公开(公告)日：2016-05-05
申请号：US14894079
申请日：2014-05-28
Applicant: BRIDGESTONE CORPORATION
Inventor： Shinichi MUSHA , Yoshihiko KANATOMI , Junichi YAMAGISHI
CPC classification number: D07B1/162 , B05D3/102 , B60C9/0007 , B60C2009/0021 , C25D5/48 , C25D7/0607 , D07B1/0666 , D07B2205/2075 , D07B2205/3089 , D07B2801/18
Abstract: Provide are a rubber composition which is excellent in an initial adhesive property and a hygrothermal adhesive property with metals, a rubber-metal composite suited to rubber articles such as tires for automobiles, industrial belts and the like to which a strength is required, and a production method for the same. The metal cord-rubber composite of the present invention is prepared by coating a metal cord with a rubber composition, wherein an N atom on a surface of the metal cord accounts for 2 atomic % or more and 60 atomic % or less, and a Cu/Zn ratio is 1 or more and 4 or less.
Abstract translation: 提供一种橡胶组合物，其具有优异的初始粘合性和与金属的湿热粘合性，适用于需要强度的汽车用轮胎，工业皮带等的橡胶制品的橡胶 - 金属复合材料，以及 生产方法相同。 本发明的金属帘线 - 橡胶复合材料通过用橡胶组合物涂覆金属帘线来制备，其中金属帘线表面上的N原子占2原子％以上且60原子％以下，Cu / Zn比为1以上且4以下。
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公开(公告)号：US20180345737A1
公开(公告)日：2018-12-06
申请号：US15779602
申请日：2016-12-02
Applicant: BRIDGESTONE CORPORATION
Inventor： Seiichi TAHARA , Shinichi MUSHA , Tomohiro URATA , Tatsuya NOMOTO
CPC classification number: B29D30/72 , B29D2030/726 , B60C1/00 , B60C1/0025 , B60C13/00
Abstract: Provided is a tire on which cracks on sidewall portion outer surfaces are unlikely to progress. The tire comprises a depthwise part I from a point on a sidewall portion outer surface to 0.5 mm on at least a part of a sidewall portion, wherein: the depthwise part I satisfies the following requirement: the depthwise part I: comprising a natural rubber, a butadiene rubber, and a thermoplastic elastomer; a peak temperature T1 (° C.) of tan δ is −20° C. or more and −5° C. or less; and when tan δ at the peak temperature T1 (° C.) is α1 and a storage modulus at the peak temperature T1 (° C.) is E′1 (MPa), α1≤0.90 and E′1≥MPa.
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公开(公告)号：US20170101736A1
公开(公告)日：2017-04-13
申请号：US15128544
申请日：2015-04-06
Applicant: BRIDGESTONE CORPORATION
Inventor： Shinichi MUSHA , Junichi YAMAGISHI
IPC: D07B1/06
CPC classification number: D07B1/0666 , B60C9/0007 , B60C2009/0014 , B65G15/56 , C22C9/04 , D07B2205/3089 , F16L11/08 , D07B2801/18
Abstract: This disclosure is to provide a brass-plated steel wire for reinforcing a rubber article, which is capable of improving overvulcanization adhesiveness. This disclosure is a brass-plated steel wire for reinforcing a rubber article, wherein: when measured with XPS (X-ray photoelectron spectroscopy), an outermost surface contains zinc at an amount of 4.93 to 14 atom %, and contains oxygen at an amount of 50 atom % or less; and in the outermost surface, an atomic ratio of copper to zinc is more than 2.33 and 6 or less.
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公开(公告)号：US20200307133A1
公开(公告)日：2020-10-01
申请号：US15779597
申请日：2016-12-02
Applicant: BRIDGESTONE CORPORATION
Inventor： Seiichi TAHARA , Shinichi MUSHA , Tomohiro URATA , Tatsuya NOMOTO
Abstract: Provided is a tire on which cracks on sidewall portion outer surfaces are unlikely to progress. The tire comprises a depthwise structure on at least a part of a sidewall portion, the depthwise structure comprising, in a depth direction from a point on a sidewall portion outer surface, a depthwise part from the sidewall portion outer surface to 0.5 mm and a depthwise part II from 0.5 mm to 1.0 mm, wherein: the depthwise part I and the depthwise part II satisfy: the depthwise part I: peak temperature T1 of tan δ is −20° C. or more and −5° C. or less, and when tang at the peak temperature T1 is α1 and storage modulus at the peak temperature T1 is E′1, α1≤0.90 and E′1≥5 MPa; and the depthwise part II: when tan δ at peak temperature T1 is α2, and storage modulus at peak temperature T1 is E′2, α2
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Patent Agency Ranking
公开(公告)号：US20170121904A1
公开(公告)日：2017-05-04
申请号：US15301581
申请日：2015-04-06
Applicant: BRIDGESTONE CORPORATION
Inventor： Shinichi MUSHA , Yoshihiko KANATOMI , Junichi YAMAGISHI
Abstract: This disclosure is to provide a brass-plated steel wire for reinforcing a rubber article, which is capable of improving the initial adhesiveness, heat-resistant adhesiveness and initial adhesion rate. This disclosure is a brass-plated steel wire for reinforcing a rubber article, wherein: when measured with XPS (X-ray photoelectron spectroscopy), an outermost surface contains zinc at an amount of 4.8 atom % or less, phosphorus at an amount of 0.5 atom % or more, and oxygen at an amount of 50 atom % or less; and in the outermost surface, an atomic ratio of copper to zinc is 1 to 6.
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公开(公告)号：US20230331880A1
公开(公告)日：2023-10-19
申请号：US18028612
申请日：2021-10-01
Applicant: BRIDGESTONE CORPORATION
Inventor： Aya SAIKI , Shinichi MUSHA
IPC: C08F36/08 , C08K5/47 , C08K5/521 , C08K5/098 , C08K3/04 , C08L7/00 , C08K3/22 , C08K3/06 , B60C9/00 , B65G15/34
CPC classification number: C08F36/08 , C08K5/47 , C08K5/521 , C08K5/098 , C08K3/04 , C08L7/00 , C08K3/22 , C08K3/06 , B60C9/0007 , B65G15/34 , B60C2009/0021 , C08K2003/2296
Abstract: A rubber composition contains a rubber component, an organic phosphoric acid compound having at least one alkyl chain, a vulcanizing agent, and a vulcanization accelerator. A content of a cobalt-containing compound is 0.00 parts by mass or more and less than 0.01 parts by mass as converted to a cobalt amount per 100 parts by mass of the rubber component. A content of N,N-dicyclohexyl-2-benzothiazolylsulfenamide is 0.00 parts by mass or more and less than 0.08 parts by mass per 100 parts by mass of the rubber component. The rubber composition can be used to produce a rubber-metal composite excellent in heat-resistant adhesion between a vulcanized rubber and a metal.
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公开(公告)号：US20200148860A1
公开(公告)日：2020-05-14
申请号：US16739360
申请日：2020-01-10
Applicant: BRIDGESTONE CORPORATION
Inventor： Yoshihiko KANATOMI , Shinichi MUSHA , Satoshi HAMATANI
Abstract: Provided is a rubber composition capable of providing a vulcanized rubber excellent in fracture resistance, crack resistance, and low heat generation property. The rubber composition comprises a rubber component (A), a carbon black (B) having a CTAB specific surface area of 30-110 m2/g and a silica (C) having a CTAB specific surface area of 200 m2/g or larger. The total amount of the amount (b) of the carbon black (B) and the amount (c) of the silica (C) is 30-80 parts by mass relative to 100 parts by mass of the rubber component (A), and (b):(c)=(70-85):(30-15).
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公开(公告)号：US20180371291A1
公开(公告)日：2018-12-27
申请号：US16064278
申请日：2016-12-15
Applicant: BRIDGESTONE CORPORATION
Inventor： Tomohiro URATA , Shinichi MUSHA , Kotaro HAYAKAWA , Tatsuya FUNAKI , Akihide OOSAKU
Abstract: An object of the present invention is to provide a coating composition that is capable of providing a cured film excellent in adhesion to a base material and flexural fatigue resistance. Another object of the present invention is to provide a cured film obtained from the coating composition, and a laminate and a tire each having the cured film formed thereon. The coating composition of the present invention contains a polythiol compound (A), a polyurethane having an ethylenically unsaturated group (B), and a radical generator (C).
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公开(公告)号：US20170233557A1
公开(公告)日：2017-08-17
申请号：US15514620
申请日：2015-09-28
Applicant: BRIDGESTONE CORPORATION
Inventor： Junichi YAMAGISHI , Shinichi MUSHA , Yoshihiko KANATOMI
CPC classification number: C08L7/00 , B60C1/00 , C08G8/22 , C08K3/04 , C08K3/22 , C08K2003/2296 , C08K2201/006 , C08K2201/014 , C08L9/00 , C08L21/00 , C08L61/12
Abstract: The rubber composition of the present invention is prepared by mixing a rubber component (A), zinc oxide (B), and a co-condensate (C) having a softening point of 150° C. or lower and containing a p-tert-butylphenol-derived constituent unit represented by the following formula (1), an o-phenylphenol-derived constituent unit represented by the following formula (2) and a resorcinol-derived constituent unit represented by the following formula (3), wherein the nitrogen adsorption specific surface area (N2SA) of the zinc oxide (B) measured according to the BET method is 6 m2/g or more and 110 m2/g or less, the mixing amount of the zinc oxide (B) is 5 parts by mass or more and 13 parts by mass or less based on 100 parts by mass of the rubber component (A), and the mixing amount of the co-condensate (C) is 0.1 parts by mass or more and 10 parts by mass or less based on 100 parts by mass of the rubber component (A). The co-condensate (C) is usable as a replacement for p-tert-octylphenol and p-nonylphenol, has a softening point lower than the maximum temperature in a rubber processing step, and has excellent dispersibility in rubber.
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