Denture fixative composition containing partially neutralized copolymers of maleic acid or anhydride and alkyl vinyl ethers which are optionally partially crosslinked
AssigneeBlock Drug Company, Inc.
InventorsTiang-Shing Chang, Lucy J. Zientek
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Abstract
Denture fixative compositions contain denture fixative excipients and as the denture fixative, a water soluble partially neutralized alkyl vinyl ether-maleic acid or anhydride copolymer, optionally partly crosslinked, and at least one hydrophilic polymer, preferably sodium carboxymethylcellulose, polyethylene oxide or hydroxypropyl guar.
Claims17
A denture fixative composition comprising a denture fixative excipient and an effective denture fixative amount of a mixture of a water soluble partially neutralized and partially crosslinked lower alkyl vinyl ether-maleic acid or anhydride copolymer, a 1% aqueous solution of which has a pH of at least about 4.5 and said copolymer containing at least about 30% unreacted initial carboxyl groups, and at least one hydrophilic polymer, said composition developing when contacted with saliva a high degree of tack and viscous musilage and which spreads over the denture-mucosa interface to fill the gaps so as to provide a suction-type seal.
Dependencies are inferred from the claim text.