Patent ID: 8329789

Claim:
A stabilizer composition for halogen-containing polymers comprising titanium dioxide and at least one nitrogen-containing compound, wherein the titanium dioxide has a photo-electromotive force (photo-EMK) in the μs-range >−15 mV and a photo-electromotive force in the ms-range >+5 mV, wherein the nitrogen-containing compound is selected from the group consisting of a heterocyclic compound, an amine and an aminocrotonic acid ester, wherein the heterocyclic compound is selected from the group consisting of substituted or unsubstituted uracil, pyrimidone and indole and wherein the aminocrotonic acid ester has the general formula (III) wherein R 5 is H, C 1 -C 18 alkyl, C 2 -C 6 alkenyl, C 1 -C 4 alkoxy, C 5 -C 8 cycloalkyl or C 5 -C 10 aryl, or wherein R 5 is selected in such a way that a symmetrical aminocrotonic acid ester is formed.