公开(公告)号：US3833518A

公开(公告)日：1974-09-03

申请号：US24381672

申请日：1972-04-13

Applicant: WARNER LAMBERT CO

Inventor： GIDWANI R ,  RUBIN H ,  KEEGAN J

IPC: A61K6/00 ,  C09J105/00 ,  C09J133/26 ,  C08B21/08 ,  C08F37/16

CPC classification number: C09J105/00 ,  C08L2666/02 ,  C09J133/26 ,  A61K6/0026 ,  C08L1/282 ,  C08L33/26 ,  C08L5/06 ,  C08L1/16 ,  C08L1/286 ,  C08L5/04 ,  C08L35/08

Abstract: AN IMPROVED ANHYDROUS DENTURE ADHESIVE IS PREPARED TO CONTAIN A MIXTURE OF A CATIONIC POLYMERIC MATERIAL AND A NATURAL OR SYNTHETIC ANIONIC POLYMERIC MATERIAL AND HESIVE INGREDIENT. THE MIXTURE MAY BE FORMULATED AS A POWDER OR ANHYDROUS PASTE, WHICH, WHEN APPLIED TO DENTURES AND EXPOSED TO MOISTURE, DEVELOPS SUPERIOR ADHESIVE PROPERTIES. SUITABLE CATIONIC MATERIALS INCLUDE AT LEAST ONE OF THE FOLLOWING: COPOLYMER OF SUBSTITUTED OR UNSUBSTITUTED ACRYLAMIDE WITH VINYL QUATERNARY AMMONIUM SALTS; COPOLYMERS OF SUBSTITUTED, OR UNSUBSTITUTED ACRYLAMIDE WITH VINYL AND ALKYL SUBSTITUTED VINYL PYRIDINIUM SALTS; AND AN O-LOWER ALKYL-TRIMETHYLAMMONIUM CHLORIDE-SUBSITUTED-ANHYDROGLUCOSE POLYMER. AS THE ANIONIC COMPONENT THERE MAY BE USED AT LEAST ONE NATURAL GUM, SUCH AS GUM KARAYA, GUM ARABIC, GUM SHIRAZ, GUM TRAGACANTH, PECTIN, PECTINATES, ALGIN, AND ALGINATES; OR AT LEAST ONE SYNTHETIC GUM INCLUDING COPOLYMERS OF MALEIC ANHYDRIDE WITH VINYL-LOWER ALKYL-ETHERS, CARBOXYMETHYL CELLULOSES, AND CELLULOSE SULFATES.