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. 06, 2007
Filed:
Mar. 23, 2005
Fu Lin, Kaohsiung, TW;
Jing-cherng Tsai, Kaohsiung, TW;
Chih-kuang Tsai, Kaohsiung, TW;
Shun-an Liu, Kaohsiung, TW;
Fu Lin, Kaohsiung, TW;
Jing-Cherng Tsai, Kaohsiung, TW;
Chih-Kuang Tsai, Kaohsiung, TW;
Shun-An Liu, Kaohsiung, TW;
TSRC Corporation, Taipei, TW;
Abstract
A process for hydrogenation of an unsaturated 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: (a) a titanium compound; (b) a compound represented by formula (II) or formula (III): wherein Lis a Group IVA element, Lis a Group IVA element, Ris C–Calkyl or C–Ccycloalkyl, Ris C–Calkyl or C–Ccycloalkyl, and X, X, and Xcan be the same or different and are C–Calkyl, C–Calkoxy, C–Ccycloalkoxy, phenyl, or phenoxy; and (c) a trialkylaluminum compound.