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公开(公告)号：EP4122981A2
公开(公告)日：2023-01-25
申请号：EP22180520.3
申请日：2022-06-22
摘要： A sulfur curable rubber composition is disclosed comprising, based on 100 parts by weight of elastomer (phr): at least two diene elastomers, wherein a pair of the at least two diene elastomers has a greater than 30% difference in styrene content by weight; and from 60 to 180 phr of a silica filler, preferably a precipitated silica filler. At least one of the diene elastomers is functionalized to react with the silica. Also, a tire compising such a rubber composition is disclosed.
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公开(公告)号：EP4122981A3
公开(公告)日：2023-02-08
申请号：EP22180520.3
申请日：2022-06-22
摘要： A sulfur curable rubber composition is disclosed comprising, based on 100 parts by weight of elastomer (phr): at least two diene elastomers, wherein a pair of the at least two diene elastomers has a greater than 30% difference in styrene content by weight; and from 60 to 180 phr of a silica filler, preferably a precipitated silica filler. At least one of the diene elastomers is functionalized to react with the silica. Also, a tire compising such a rubber composition is disclosed.
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公开(公告)号：EP3838983A1
公开(公告)日：2021-06-23
申请号：EP20213238.7
申请日：2020-12-10
发明人： MARTTER, Teresa Diane , ISITMAN, Nihat Ali , RICKMAN, Becky Gerette , RAMIC, Anthony Joseph , ANYFANTAKI, Karmena Izabela , MURRAY, Aaron Patrick , ENGELDINGER, Eric , WEYDERT, Marc
摘要： A vulcanizable rubber composition and its use in a tire or an article of manufacture is disclosed. The vulcanizable rubber composition comprises: from 30 to 90 phr of a first functionalized styrene-butadiene rubber having a glass transition temperature Tg1 ranging from -70 to -50 °C; and from 10 to 50 phr of a second functionalized styrene-butadiene rubber having a glass transition temperature Tg2 ranging from - 110 to -70°C. Tg2 minus Tg1 is at least 10 °C. It further comprises from 0 to 40 phr of at least one additional elastomer; from 50 to 150 phr of silica; from 0 to 50 phr of a hydrocarbon resin; and from 10 to 50 phr of an oil.
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公开(公告)号：EP3628702A1
公开(公告)日：2020-04-01
申请号：EP19198824.5
申请日：2019-09-21
摘要： A rubber composition for use in a tire tread is disclosed. The rubber composition comprises, based on parts by weight per 100 parts by weight elastomer (phr):
(A) 100 phr of conjugated diene-based elastomers comprising:
(1) 20 to 80 phr of a first functionalized vinyl polybutadiene rubber having a Tg in a range of from -40°C to -10°C and an isomeric vinyl 1,2-content in a range of from 65 to 85 percent, wherein the first functionalized vinyl polybutadiene rubber contains functional groups reactive with hydroxyl groups on a silica reinforcement of the rubber composition;
(2) 80 to 20 phr of a second functionalized vinyl polybutadiene rubber having a Tg in a range of from -108°C to -90°C and an isomeric vinyl 1,2-content in a range of from 0 to 15 percent, wherein the second functionalized low vinyl polybutadiene rubber contains functional groups reactive with hydroxyl groups on a silica reinforcement of the rubber composition;
wherein the weight ratio of the second functionalized vinyl polybutadiene rubber to the first functionalized vinyl polybutadiene rubber is at least 1/1 or at least 1.5/1; and
(B) 60 to 200 phr of a rubber reinforcing filler comprising a combination of silica, preferably precipitated silica or amorphous synthetic precipitated silica, and carbon black in a weight ratio of silica to carbon black of at least 9/1, together with a silica coupling agent having a moiety reactive with hydroxyl groups on the silica and another different moiety interactive with the diene-based elastomers.-
5.发明公开
公开(公告)号：EP3628692A1
公开(公告)日：2020-04-01
申请号：EP19198823.7
申请日：2019-09-21
发明人： PAPAKONSTANTOPOULOS, George Jim , MURRAY, Aaron Patrick , HAHN, Bruce Raymond , MARTTER, Teresa Diane
IPC分类号： C08C19/20 , C08C19/25 , C08C19/44 , C08F136/06 , B60C1/00 , C08L15/00 , C08K3/04 , C08K3/36 , C08K5/548
摘要： A rubber composition is disclosed comprising:
(A) at least one conjugated diene-based elastomer, and
(B) a filler reinforcement for said rubber composition comprising a combination of silica and carbon black,
wherein at least one of said conjugated diene-based elastomers is an end-chain multi-functionalized elastomer comprising a diene-based elastomer end-chain functionalized with at least one multi-functional group comprising at least one of:
(1) alkoxyorganosilane polysulfide of the general formula (I):
(I) (R 1 O) 3 -Si-R 2 -S x -R 2 -Si-(OR 1 ) 3
wherein R 1 represents the same or different aliphatic hydrocarbon radicals containing from 1 to 12 carbon atoms, R 2 represents an aliphatic hydrocarbon containing from 1 to 8 carbon atoms and x represents a value of from 1 to and including 8; and
(2) alkoxyorganosilane of the general formula (II):
(II) (R 1 O) 3 -Si-R 3
wherein R 1 represents the same or different aliphatic hydrocarbon radicals containing from 1 to 12 carbon atoms, and R 3 represents an unsaturated hydrocarbon containing from 2 to 100 carbon atoms; and
wherein said multi-functional groups are exclusive of alkoxyorganomercaptosilanes and alkoxyaminosilanes.-
公开(公告)号：EP3339364B1
公开(公告)日：2020-01-29
申请号：EP17207213.4
申请日：2017-12-14
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公开(公告)号：EP3339364A1
公开(公告)日：2018-06-27
申请号：EP17207213.4
申请日：2017-12-14
发明人： JIANG, Yingying , KLINKENBERG, Maurice Peter Catharina Jozef , FORCINITI, Leandro , BUSCH, Warren James , SANDSTROM, Paul Harry , MARTTER, Teresa Diane
摘要： A vulcanizable rubber composition is disclosed comprising a diene based elastomer; from 10 to 60 parts by weight, per 100 parts by weight of elastomer (phr), of an oxidized carbon black comprising on its surface at least one functional group selected carboxylic acid (-COOH) and hydroxide (-OH); and from 0.1 to 0.5 phr of a polymeric amine comprising a primary amine functionality. The rubber composition may be used in a pneumatic tire.
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