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. 30, 1991
Filed:
Jun. 13, 1990
Applicant:
Inventors:
Roberto Bortolin, Barry, IT;
Bhukandas Parbhoo, Midland, MI (US);
Assignee:
Dow Corning Limited, Barry, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556431 ;
Abstract
Organosilbutadiyne polymers having the general formula R'-[(R).sub.2 Si--C.tbd.C--C.tbd.C].sub.n -(R).sub.2 SiR' wherein R is a hydrogen atom, a hydrocarbon group or a substituted hydrocarbon group, R' is hydroxyl, halogen or R and n is an integer, are made by (A) reacting HC.tbd.C--C.dbd.CH--OZ with alkyllithium in a molar ratio of 1:3 wherein Z denotes an alkyl group having up to 6 carbon atoms followed by (B), further reacting the product of (A) with one or more dihalosilanes.
Bortolin, Roberto. (1991). Method of making organosilbutadiyne polymers (U.S. Patent No. 5011961). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5011961
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile