Patent ID: 6417244
Filing Date: 2002-07-09
Classification: A61K,A61Q,B01J,B82Y,C01B,C01G,C01P,C08F

Abstract:
A composition photopolymerizable into transparent or translucent solids comprising:a matrix comprising monomers selected from the group consisting of bisacrylate, bis-methacrylate, and a combination thereof; particles comprising an amphoteric metal oxide, said particles selected from the group consisting of amphoteric metal oxide particles and amphoteric metal oxide-silica particles, said particles having a diameter in nanometers of about 50 to 100; wherein said particles comprise a surface comprising acid sites complexed with or bound to a functionality selected from the group consisting of a phosphate group, a phosphonate group, and a heterocyclic basic atom of an alkene substituted polymerizable, biocompatible, monomeric, heterocyclic base.