DENTURE ADHESIVE COMPOSITIONS

摘要

The present invention relates to a denture adhesive composition comprising mixed salts of an alkyl vinyl ether-maleic acid or anhydride copolymer and/o r terpolymer with isobutylene wherein the mixed salt contains a cationic salt function comprising at least about 22.5 % calcium cations, from about 15 % t o about 25 % of zinc cations, of the total initial carboxyl groups reacted, th e mixed salt containing from about 36 % to about 50 % free acid component. In addition the present invention relates to denture adhesive compositions comprising the above composition and at least one non-adhesive self-supporti ng layer. The present invention further relates to a method of increasing the adhesion of dentures to the oral cavity by applying the above compositions t o dentures, directly to the oral cavity, palate or ridge of the oral cavity, o r applying it to both, and thereafter securing the denture to the ridge or palate of the oral cavity.