| 摘要 |
PCT No. PCT/EP95/04312 Sec. 371 Date May 12, 1997 Sec. 102(e) Date May 12, 1997 PCT Filed Nov. 3, 1995 PCT Pub. No. WO96/15102 PCT Pub. Date May 23, 1996Novel 2-cyanoacrylic esters I <IMAGE> I where the radicals have the following meanings: R1 and R2 are each hydrogen or a radical having an iso- or heterocyclic ring system with at least one iso- or heteroaromatic nucleus, and at least one of the radicals R1 or R2 must be different from hydrogen, n is from 2 to 10, and X is, when n=2, a radical of the formula II <IMAGE> II where m is from 2 to 8, and X is, when n>2, the radical of an n-hydric aliphatic or cycloaliphatic polyol having 3-20 carbon atoms, it also being possible for a cycloaliphatic radical to contain 1 or 2 hetero atoms, and for an aliphatic radical to be interrupted by up to 8 non-adjacent oxygen atoms, sulfur atoms, imino or C1-C4-alkylimino groups, are used as light stabilizers.
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