公开(公告)号：US20180305526A1

公开(公告)日：2018-10-25

申请号：US15495295

申请日：2017-04-24

Applicant: Fina Technology, Inc.

Inventor： Fabien SALORT ,  Jean-Marc MONSALLIER

IPC: C08L9/06

CPC classification number: C08L9/06 ,  C08L9/00 ,  C08L21/00 ,  C08K3/36 ,  C08K5/01

Abstract: A low molecular weight co-oligomer containing styrene and α-methyl styrene in bound form and having a ring and ball softening point not greater than 50° C. is useful in modifying the properties of a diene elastomer-based curable rubber composition capable of being used to manufacture tire treads.

公开(公告)号：US20180355073A1

公开(公告)日：2018-12-13

申请号：US15616169

申请日：2017-06-07

Applicant: Fina Technology, Inc.

Inventor： Steven K. HENNING ,  Jean-Marc MONSALLIER ,  Nan TIAN

IPC: C08C19/25 ,  C08C19/28 ,  C08K9/06 ,  C08L9/06 ,  C08K3/36 ,  C08F236/10 ,  C08K5/548

CPC classification number: C08C19/25 ,  C08C19/28 ,  C08C19/44 ,  C08F236/10 ,  C08K3/36 ,  C08K5/548 ,  C08K9/06 ,  C08L9/00 ,  C08L9/06 ,  C08L47/00

Abstract: According to an aspect of the invention, a curable rubber composition is provided which includes a high molecular weight diene elastomer; optionally, a carbon black composition; a silica composition; and a farnesene polymer comprising farnesene monomers. The farnesene polymer is modified with at least one silane group, has a number average molecular weight of 1,000 g/mol to 100,000 g/mol, and has a glass transition temperature of equal to or less than −50° C. According to another aspect of the invention, a method for producing a rubber composition for use in a tire is provided. The method includes forming a composition by mixing a farnesene polymer modified with at least one silane group, a silica composition, a high molecular weight diene elastomer, and optionally a carbon black composition, the farnesene polymer comprising farnesene monomers; and curing the composition.