Patent ID: 7419619

Claim:
A mixture for the production of transparent plastics, comprising: a) a prepolymer, produced from compounds of the formula (I) and (II) wherein R 1 each independently of one another mean hydrogen or a methyl residue, R 2 each independently of one another mean a linear or branched, aliphatic or cycloaliphatic residue or a substituted or unsubstituted aromatic or heteroaromatic residue and m and n each independently of one another mean a whole number greater than 0 with m+n>0, and alkylthiols or polythiols, HS—R 3 —SH (III) wherein R 3 can similarly or differently from R 2 have the meaning stated in R 2 , and b) at least one radical polymerizable monomer (A) with at least two methyl acrylate groups; and c) aromatic vinyl compounds, d) optionally, a radical polymerizable monomer with at least two terminal olefinic groups, which differ in reactivity, e) optionally, at least one ethylenically unsaturated monomer (B); f) or optionally, a mixture of d) and e); and g) an asymmetric crosslinker which is a radical polymerizable monomer with at least two terminal olefinic groups which differ in reactivity, which is (i) a compound of the formula (XIVa) wherein s and t are greater than or equal to zero and the sum s+t is in the range from 1 to 20; or (ii) a mixture of a compound of formula (XIII) and the compound of the formula (XIVa) wherein, in formula (XIII), the residues R 23 and R 24 each independently of each other are a hydrogen or a methyl residue, and the residue R 25 designates a linear or branched, aliphatic or cycloaliphatic divalent residue or a substituted or unsubstituted aromatic or heteroaromatic divalent residue, and wherein, in formula (XIVa) s and t are greater than or equal to zero and the sum s+t is in the range from 1 to 20.