Denture adhesive

Details Denture adhesive Denture adhesive

1996-10-11

1998-06-09

Jagannathan, Vasu

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

523120, 523118, C08F22206, C08F21612

Patent

active

057635544

ABSTRACT:
This invention relates to an improved denture adhesive composition having extended holding power accompanied by adhesion building properties during use and having increased gel adhesion, which composition consists essentially of (a) from about 10 to about 35 wt. % lower alkyl vinyl ether-maleic acid copolymer wherein from 0 to about 90 wt. % of the copolymer carboxyl units are converted to a mixture of salts selected from the group of calcium, sodium, strontium, aluminum, zinc, magnesium and potassium; (b) 10-35 wt. % of a crosslinked terpolymer of alkyl vinyl ether, maleic anhydride and a C.sub.16 -C.sub.20 alkyl acrylate or methacrylate, or vinyl ether; crosslinked with a C.sub.6 -C.sub.14 diene, e.g. 9-decadiene, and their salts; (c) 10-35 wt. % of a cohesive agent; in a weight ratio of between about 2:1 and about 1:2 with respect to the copolymer; and (d) from about 30 to about 70 wt. % of an oil base as a carrier.

REFERENCES:
patent: 4373036 (1983-02-01), Chang et al.
patent: 5567787 (1996-10-01), Kwak et al.

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