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1.发明授权公开(公告)号：US10961374B2
公开(公告)日：2021-03-30
申请号：US16472671
申请日：2017-12-21
摘要： A rubber composition based on at least an elastomer matrix is provided. The elastomer matrix comprises a first diene elastomer having a number-average molecular weight, Mn, of greater than or equal to 100 000 g/mol; a functionalized second diene elastomer bearing at the chain end a function capable of reacting with the surface of silica, said functionalized diene elastomer having a number-average molecular weight, Mn, of less than or equal to 80 000 g/mol: and a reinforcing inorganic filler, in an amount ranging from 55 phr to 200 phr. The elastomeric matrix allows good dispersion of the reinforcing inorganic filler. A finished or semi-finished article comprising such a composition, tire tread comprising such a composition, and a tire or semi-finished product comprising such a composition is also provided.
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公开(公告)号：US10723814B2
公开(公告)日：2020-07-28
申请号：US16064451
申请日：2016-12-22
摘要： A tire comprising a rubber composition comprising a substituted diene elastomer is provided. The substituted diene elastomer comprises units bearing an A-B radical, in which: A represents an aliphatic C3-C35 radical which can be interrupted by one or more heteroatom(s), and B represents a linear, branched or cyclic C1-C6 hydrocarbon radical. A and B are such that the melting point of the analogue, H-A-B, is less than 70° C., and the substituted diene elastomer comprises from 10% to 40% by weight of the A-B radical, with respect to the total weight of the elastomer. A tread comprising such a rubber composition is also provided.A rubber composition comprising such a substituted diene elastomer and at least one of the following constituents: a second diene elastomer; a reinforcing filler and, if appropriate, a coupling agent is also provided.
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公开(公告)号：US10513150B2
公开(公告)日：2019-12-24
申请号：US15735531
申请日：2016-06-16
发明人： Séverin Dronet , Julien Thuilliez
IPC分类号： B60C1/00 , C08F236/06 , C08F236/08 , C08G8/02 , C08L9/00 , C08G81/02 , C08C19/25
摘要： The present invention relates to comb block copolymers, combining an elastomeric backbone and rigid pendent blocks and thus having thermoplastic elastomer properties. The invention targets in particular comb block copolymers which may be used as a material as is.According to the invention, the comb block copolymer is a diene/polypropylene thermoplastic elastomer copolymer, characterized in that it consists of a backbone, said backbone being derived from a diene elastomer, and in that it comprises from 5% to 50% by weight, relative to the total weight of the copolymer, of pendent semicrystalline polypropylene groups distributed along the backbone.Another subject of the invention is the process for preparing same, and the compositions comprising same.Finally, a subject of the invention is a tire, one of the constituent elements of which comprises such a composition.
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