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:
Apr. 19, 2005
Filed:
Mar. 21, 2003
Fu Lin, Kaohsiung, TW;
Chih-kuang Tsai, Kaohsiung, TW;
Shun-an Liu, Kaohsiung, TW;
TSRC Corporation, Kaohsiung, TW;
Abstract
A process for hydrogenation of a conjugated diene polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (I) a titanium compound; (II) a compound represented by formula (II):wherein L is a Group IVB element, R is C-Calkyl or C-Ccycloalkyl, X can be the same or different and is C-Calkyl, C-Calkoxy, C-Ccycloalkoxy, halogen, or carbonyl; and (III) a trialkylaluminum compound.