Denture adhesive
AssigneeGAF Chemicals Corporation
InventorsMohammed Tazi, Robert B. Login, Yoon T. Kwak, Balgopal Gangadharan, Rama K. Haldar
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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.
Claims18
A denture adhesive which comprises a mixed, partial calcium/sodium salt of a terpolymer of maleic anhydride, a C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene, said terpolymer having a weight average molecular weight of about 30,000 to 400,000, and being in the molar ratio of about 1:0.4-0.9:0.1-0.6, respectively.
Dependencies are inferred from the claim text.