초록 ▼

Inherently highly abrasion-resistant cast articles are prepared by polymerizing a composition comprising (I) as a first component from 0 to 100 parts of urethane polyacrylic ester and (II) as a second component, correspondingly from 100 to 0 parts of a composition containing (A) 30 to 60% by weight

Inherently highly abrasion-resistant cast articles are prepared by polymerizing a composition comprising (I) as a first component from 0 to 100 parts of urethane polyacrylic ester and (II) as a second component, correspondingly from 100 to 0 parts of a composition containing (A) 30 to 60% by weight of a polyacrylic ester having 4 to 10 acryloyloxy groups, (B) 20 to 70% by weight of a polymerization shrinkage modifier, and (C) 0 to 30% of a diluent monomer. A source of free-radicals may be added to the composition.

대표청구항 ▼

An article having an inherent abrasion resistance to 000 steel wool of at least 140 kPa comprising a polymerization product of (a) from 45 to 60 percent by weight of a polyacrylic ester; and (b) from 20 to 55 percent by weight of a polymerization shrinkage modifier comprising a polymerizable carbami

An article having an inherent abrasion resistance to 000 steel wool of at least 140 kPa comprising a polymerization product of (a) from 45 to 60 percent by weight of a polyacrylic ester; and (b) from 20 to 55 percent by weight of a polymerization shrinkage modifier comprising a polymerizable carbamic compound having at least two groups selected from [Figure] and at least two acrylic groups per 168 to 2000 of molecular weight and a molecular weight of 168 to 5000 which is an acryloyloxyalkyisocyanurate of the formula [Figure] FORMULA III in which: R7 is polyvalent aliphatic group selected from R6 and [Figure] in which R6 is an alkylene group having 1 to 6 carbon atoms or a 5- or 6-membered cycloalkylene group having 5 to 10 carbon atoms and R11 has a valence of g+1 and is a polyvalent aliphatic group having 4 to 10 carbon atoms and, optionally, one caternary oxygen atom; g is an integer of 1 to 3; and (c) from 0 to 30 percent by weight of a diluent monomer; and (d) a source of free radicals.