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:
Jan. 14, 1992
Filed:
Oct. 29, 1990
Applicant:
Inventors:
Thomas K Dougherty, Playa Del Rey, CA (US);
Thomas W Giants, Santa Monica, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 33 ; 427387 ; 528 26 ; 528 34 ; 528 15 ; 528 21 ; 528 41 ; 528 43 ; 528 40 ;
Abstract
Polymers of silanol-terminated aromatic imide compounds of Formula I ##STR1## where R.sub.3 and R.sub.4 are each selected from the group consisting of a C.sub.1 to C.sub.6 alkyl group, an unsubstituted aryl group and a substituted aryl group, Z is a divalent radical. A preferred copolymer in accordance with the present invention is formed by polymerizing the compound of Formula I with a silicon compound having the formula ##STR2## where R.sub.3 and R.sub.4 are as defined above, X=halogen, OH, OR, NRR, or ureido,