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:
Aug. 06, 1991
Filed:
Jul. 25, 1990
Applicant:
Inventors:
Mohammed Tazi, Wayne, NJ (US);
Robert B Login, Oakland, NJ (US);
Yoon T Kwak, Brooklyn, NY (US);
Balgopal Gangadharan, Caldwell, NJ (US);
Rama K Haldar, Randolph, NJ (US);
Assignee:
GAF Chemicals Corporation, Wayne, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08L / ; C08K / ;
U.S. Cl.
CPC ...
526272 ; 526332 ; 5263487 ; 323118 ; 524400 ;
Abstract
According to this invention, there is provided a denture adhesive which is a mixed partial salt of a terpolymer of maleic anhydride, (MA) a C.sub.1 -C.sub.4 alkyl vinyl ether (AVE) and isobutylene (IB) vinyl ether, having a weight average molecular weight of about 30,000 to 400,000, preferably about 50,000 to 350,000. The terpolymer has its components in the molar ratio of MA:AVE:IB of about 1:0.4-0.9:0.1-0.6, preferably about 1:0.5-0.8-0.2-0.5.