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:
Mar. 03, 2009
Filed:
Apr. 10, 2003
Takaaki Matsuda, Fujisawa, JP;
Shigeki Takayama, Tokyo, JP;
Toshinori Shiraki, Yamato, JP;
Shigeo Nakajima, Fujisawa, JP;
Yasuhiro Kusanose, Yokosuka, JP;
Takaaki Matsuda, Fujisawa, JP;
Shigeki Takayama, Tokyo, JP;
Toshinori Shiraki, Yamato, JP;
Shigeo Nakajima, Fujisawa, JP;
Yasuhiro Kusanose, Yokosuka, JP;
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Abstract
A first-order modified, hydrogenated polymer comprising (1) a hydrogenated polymer obtained by hydrogenating at least one unhydrogenated polymer selected from the group consisting of a polymer comprising conjugated diene monomer units and a copolymer comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units, and (2) a functional group-containing first-order modifier group bonded to the hydrogenated polymer (), wherein the content of the vinyl aromatic hydrocarbon monomer units, vinyl aromatic hydrocarbon block ratio, weight average molecular weight, and hydrogenation ratio (as measured with respect to the double bonds in the conjugated diene monomer units) of the first-order modified, hydrogenated polymer are, respectively, within specific ranges. A second-order modified polymer obtained by reacting a second-order modifier with a first-order modified polymer comprising (β) a base polymer and (γ) a functional group-containing first-order modifier group bonded to the base polymer (β). A composition comprising the above-mentioned first-order modified, hydrogenated polymer or second-order modified polymer and at least one functional component other than the modified polymer.