The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2017
Filed:
Jul. 15, 2014
Exxonmobil Chemical Patents Inc.;
Edward J. Blok, Huffman, TX (US);
Andy H. Tsou, Houston, TX (US);
Shuji Luo, Basking Ridge, NJ (US);
Elizabeth L. Walker, Stockertown, PA (US);
Jingwen Zhang, Houston, TX (US);
Yong Yang, Kingwood, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
A polyolefin-polybutadiene block-copolymer and a tire tread composition comprising the polyolefin-polybutadiene block-copolymer, the composition comprising, by weight of the composition, within the range from 15 to 60 wt % of a styrenic copolymer, processing oil, filler, a curative agent, and from 4 to 20 wt % of a polyolefin-polybutadiene block-copolymer, wherein the polyolefin-polybutadiene block-copolymer is a block copolymer having the general formula PO-XL-fPB; where 'PO' is a polyolefin block having a weight average molecular weight within the range from 1000 to 150,000 g/mole, the 'fPB' is a functionalized polar polybutadiene block having a weight average molecular weight within the range from 500 to 30,000 g/mole, and “XL” is a cross-linking moiety that covalently links the PO and fPB blocks; and wherein the maximum Energy Loss (Tangent Delta) of the immiscible polyolefin domain is a temperature within the range from −30° C. to 10° C.