초록

wherein x+y is an integer from 1 to 20, and preferably from 2 to 7, together with a methacrylate oligomer and an optional diluent monomer. The composition is suitable for use for dental fillers adhesives, and the like, and has improved water sorption and excellent wear resistance.

대표청구항 ▼

[ What is claimed is:] [1.] A curable dental resin composition comprising(a) from about 10 to about 30 weight percent of a methacrylate oligomer;(b) from 65 to about 90 weight percent of an ethoxylated bisphenol A dimethacrylate having the formula EQU CH.sub.2 .dbd.C(CH.sub.3)CO.sub.2 (C.sub.2 H.sub

[ What is claimed is:] [1.] A curable dental resin composition comprising(a) from about 10 to about 30 weight percent of a methacrylate oligomer;(b) from 65 to about 90 weight percent of an ethoxylated bisphenol A dimethacrylate having the formula EQU CH.sub.2 .dbd.C(CH.sub.3)CO.sub.2 (C.sub.2 H.sub.4 O) .sub.x C.sub.6 H.sub.4 C(CH.sub.3).sub.2 C.sub.6 H.sub.4 (OC.sub.2 H.sub.4).sub.y O.sub.2 CC(CH.sub.3).dbd.CH.sub.2 rein x+y is 10; and(c) from about 0 to about 40 weight percent of a diluent monomer for decreasing the viscosity of the dental resin composition, wherein each of the components (a), (b), and (c) is a different monomer and such that the specific amounts with the ranges yield a 100% by weight polymerization system.