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. 15, 2005
Filed:
May. 21, 2002
Applicants:
Bob R. Maughon, Midland, MI (US);
Takeharu Morita, Osaka, JP;
Robert H. Grubbs, South Pasadena, CA (US);
Inventors:
Bob R. Maughon, Midland, MI (US);
Takeharu Morita, Osaka, JP;
Robert H. Grubbs, South Pasadena, CA (US);
Assignee:
California Institute of Technology, Pasadena, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F012/26 ; C08F020/68 ; C08F020/70 ; C08F004/44 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to telechelic polymers having crosslinkable end groups of the formulaand methods for preparing the same wherein n is an integer;is an alkadienyl group; Y is an alkyl group; and Z is crosslinkable end group. In general, the inventive synthesis involves reacting a functionalized chain transfer agent having crosslinkable ends with a cycloalkene in the presence of a ruthenium or osmium catalyst of the formulawherein: