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公开(公告)号：US11084326B2
公开(公告)日：2021-08-10
申请号：US16067091
申请日：2017-04-28
发明人： Yuko Sekine , Makoto Ashiura , Fumito Yatsuyanagi
IPC分类号： B60C1/00 , C08K3/04 , C08K3/36 , C08F236/10 , C08L9/06
摘要： Provided is a rubber composition which contains a diene rubber and a reinforcing filler. The diene rubber contains a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and satisfying: (1) the bonded styrene content is from 5 to 50 wt. %; (2) among components obtained by ozone decomposition, the content of a decomposed component V1 containing one 1,2-bonded butadiene-derived unit out of the total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is not less than 20 mol %; (3) among components obtained by ozone decomposition, the content of a decomposed component S2V1 containing two styrene-derived units and one 1,2-bonded butadiene-derived unit out of the total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is not less than 4 mol %; and (4) the vinyl content of a butadiene moiety is not less than 20% and less than 50%.
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公开(公告)号：US10703828B2
公开(公告)日：2020-07-07
申请号：US15507212
申请日：2015-08-24
发明人： Keisuke Maejima , Masaki Sato , Makoto Ashiura
IPC分类号： C08K3/36 , C08C19/30 , C08K5/5419 , B60C1/00 , C08L15/00 , C08L9/00 , C08L53/02 , C08F297/04 , C08C19/36 , C08C19/38 , C08F8/42
摘要： A rubber composition for tires of the present technology contains a diene rubber, silica, and a predetermined alkyltrialkoxysilane; the diene rubber containing a butadiene rubber and a particular conjugated diene rubber, a content of the butadiene rubber in the diene rubber being 20 mass % or greater and a content of the particular conjugated diene rubber in the diene rubber being from 30 to 80 mass %; an average glass transition temperature of the diene rubber being from −65 to −45° C.; the particular conjugated diene rubber being a conjugated diene rubber produced by a particular production method and having predetermined ranges of aromatic vinyl unit content, vinyl bond content, and weight average molecular weight.
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公开(公告)号：US10669407B2
公开(公告)日：2020-06-02
申请号：US15735925
申请日：2016-06-10
发明人： Yuko Sekine , Makoto Ashiura , Ryosuke Sakai , Fumito Yatsuyanagi
摘要： A rubber composition contains a diene rubber including a styrene-butadiene copolymer component including a styrene-butadiene copolymer and a reinforcing filler. (1) The bonded styrene content is from 5 to 50 wt. %. (2) The total amount of styrene of an ozone decomposed component S1 including one styrene-derived unit and an ozone decomposed component S1V1 including one styrene-derived unit and one 1,2-bonded butadiene-derived unit is less than 80 wt. % of the amount of bonded styrene. The total amount of styrene of the decomposed component S1V1 is not less than 10 wt. % of the amount of bonded styrene. (3) The integrated intensity of an ozone decomposed component S1V2 including one styrene-derived unit and two 1,2-bonded butadiene-derived units is less than 15% of the area intensity of all decomposed components including styrene-derived units. (4) The vinyl content of a butadiene portion is not less than 20% and less than 50%.
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公开(公告)号：US20190002670A1
公开(公告)日：2019-01-03
申请号：US15735915
申请日：2016-06-10
发明人： Yuko Sekine , Makoto Ashiura , Ryosuke Sakai , Fumito Yatsuyanagi
摘要： A rubber composition contains a diene rubber including a styrene-butadiene copolymer component including a styrene-butadiene copolymer and a reinforcing filler. (1) The bonded styrene content is from 5 to 50 wt. %. (2) The total amount of styrene of an ozone decomposed component S1 including one styrene-derived unit and an ozone decomposed component S1V1 including one styrene-derived unit and one 1,2-bonded butadiene-derived unit is less than 80 wt. % of the amount of bonded styrene. The total amount of styrene of the decomposed component S1V1 is less than 10 wt. % of the amount of bonded styrene. (3) The integrated intensity of an ozone decomposed component S1V2 including one styrene-derived unit and two 1,2-bonded butadiene-derived units is less than 15% of the integrated intensity of all decomposed components including styrene-derived units. (4) The vinyl content of a butadiene portion is not less than 20% and less than 50%.
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公开(公告)号：US20180298165A1
公开(公告)日：2018-10-18
申请号：US15735149
申请日：2016-06-10
发明人： Yuko Sekine , Makoto Ashiura , Ryosuke Sakai , Fumito Yatsuyanagi
摘要： Provided is a rubber composition containing a diene rubber including a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and a reinforcing filler. The bonded styrene content is from 5 to 50 wt. %. The total amount of styrene of an ozone decomposed component S1 including one styrene-derived unit and an ozone decomposed component S1V1 including one styrene-derived unit and one 1,2-bonded butadiene-derived unit is less than 80 wt. % of the amount of bonded styrene. The total amount of styrene of the decomposed component S1V1 is not less than 10 wt. % of the amount of bonded styrene. The integrated intensity of an ozone decomposed component S1V2 including one styrene-derived unit and two 1,2-bonded butadiene-derived units is not less than 15% of the integrated intensity of all decomposed components including styrene-derived units. The vinyl content of a butadiene portion is not less than 20% and less than 50%.
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6.发明授权公开(公告)号：US09475924B2
公开(公告)日：2016-10-25
申请号：US13627129
申请日：2012-09-26
发明人： Yoshihiro Kameda , Makoto Ashiura
摘要： A rubber composition for tire tread contains a diene-based rubber including 30 wt % or more of a terminal modifying group-containing conjugated diene-based copolymer, silica, carbon black, and at least one of silane coupling agents represented by specified formulae. The total amount of silica and carbon black in the composition is 35 to 140 parts by weight relative to 100 parts by weight of the diene-based rubber, while the silane coupling agent content is 4 to 18 wt % on the silica content. The copolymer is produced by a specified method such that the aromatic vinyl monomer content in the copolymer is 38 to 48 wt %, the vinyl unit content in all the conjugated diene-based monomers is 20 to 35 mol %, the weight average molecular weight of the copolymer is 600,000 to 1,000,000, and the terminal modifying group in the copolymer contains a functional group which interacts with the silica.
摘要翻译： 轮胎胎面用橡胶组合物含有包含30重量％以上的含末端改性基团的共轭二烯系共聚物，二氧化硅，炭黑和由规定的式表示的硅烷偶联剂中的至少一种的二烯系橡胶。 相对于100重量份二烯类橡胶，组合物中二氧化硅和炭黑的总量为35〜140重量份，硅石偶联剂含量为二氧化硅含量为4〜18重量％。 该共聚物通过规定的方法制造，使共聚物中的芳香族乙烯基单体含量为38〜48重量％，所有共轭二烯系单体中的乙烯基单元含量为20〜35摩尔％，重均分子量 共聚物为60万〜100万，共聚物中的末端改性基团含有与二氧化硅相互作用的官能团。
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公开(公告)号：US10934427B2
公开(公告)日：2021-03-02
申请号：US16067088
申请日：2017-04-28
发明人： Yuko Sekine , Makoto Ashiura , Fumito Yatsuyanagi
摘要： A rubber composition contains a diene rubber component and a reinforcing filler, the diene rubber component containing a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and satisfying: the bonded styrene content is from 5 to 50 wt. %; of components obtained by ozone decomposition, a content of a decomposed component V1 containing one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived unit(s) and/or the 1,2-bonded butadiene-derived unit(s) is not less than 25 mol %; of the components obtained by ozone decomposition, a content of a decomposed component S2V1 containing two of the styrene-derived units and one of the 1,2-bonded butadiene-derived unit out of a total of 100 mol % of the decomposed components containing the styrene-derived unit(s) and/or the 1,2-bonded butadiene-derived unit(s) is not less than 5 mol %; and a vinyl content of a butadiene moiety is not less than 50%.
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公开(公告)号：US10689508B2
公开(公告)日：2020-06-23
申请号：US16067094
申请日：2017-04-28
发明人： Yuko Sekine , Makoto Ashiura , Fumito Yatsuyanagi
摘要： Provided is a rubber composition which contains a diene rubber and a reinforcing filler, and the diene rubber contains a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and satisfying the following requirements: (1) the bonded styrene content is from 5 to 50 wt. %; (2) among components obtained by ozone decomposition, a content of a decomposed component V1 containing one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is not less than 25 mol %; (3) among components obtained by ozone decomposition, a content of a decomposed component S2V1 containing two styrene-derived units and one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is less than 5 mol %; and (4) a vinyl content of a butadiene moiety is not less than 50%.
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公开(公告)号：US20190085158A1
公开(公告)日：2019-03-21
申请号：US16067093
申请日：2017-04-28
发明人： Yuko Sekine , Makoto Ashiura , Fumito Yatsuyanagi
摘要： Provided is a rubber composition which contains a diene rubber and a reinforcing filler, and the diene rubber contains a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and satisfying: (1) the bonded styrene content is from 5 to 50 wt. %; (2) among components obtained by ozone decomposition, a content of a decomposed component V1 containing one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is not less than 20 mol %; (3) among components obtained by ozone decomposition, a content of a decomposed component S2V1 containing two styrene-derived units and one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is less than 4 mol %; and (4) a vinyl content of a butadiene moiety is not less than 20% and less 50%.
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公开(公告)号：US20180072100A1
公开(公告)日：2018-03-15
申请号：US15558177
申请日：2016-03-08
发明人： Yuko Sekine , Makoto Ashiura , Ryosuke Sakai , Fumito Yatsuyanagi
摘要： A rubber composition contains a diene rubber containing a styrene-butadiene copolymer component formed from at least one type of styrene-butadiene copolymer and a reinforcing filler; the styrene-butadiene copolymer satisfying: a bonded styrene content being from 5 to 50 wt. %; a total of styrene content of an ozone-decomposed component S1 having one styrene-derived unit and styrene content of an ozone-decomposed component S1V1 having one styrene-derived unit and one 1,2-bonded butadiene-derived unit being less than 80 wt. % of the bonded styrene content and a total of styrene content of the ozone-decomposed component S1V1 being 10 wt. % or greater of the bonded styrene content; an integrated intensity of an ozone-decomposed component S1V2 having one styrene-derived unit and two 1,2-bonded butadiene-derived units being 15% or greater of an integrated intensity of all ozone-decomposed components containing a styrene-derived unit; and a vinyl content of butadiene moiety being 50% or greater.
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