Homopolymers and copolymers of vinyl ethers of polyalkylpiperidinols and their use as stabilizers for plastics
AssigneeCiba-Geigy Corporation
InventorErwin Nikles
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Abstract
Homopolymers and copolymers of vinyl ethers of the formula I ##STR1## in which R is hydrogen or methyl and R.sup.1 is hydrogen C.sub.1 -C.sub.8 -alkyl, benzyl, allyl or C.sub.1 -C.sub.2 -acyl, are effective stabilizers for plastics, especially to protect them against photochemical degradation. The monomeric vinyl ethers of the formula I are novel compounds, which can be prepared from the corresponding piperidinols by vinylation by means of acetylene or by transvinylation by means of vinyl ethers or vinyl esters.
Claims1
A vinyl ether of the formula I ##STR3## in which R is hydrogen or CH.sub.3 and R.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl, benzyl, allyl, formyl or acetyl.
Dependencies are inferred from the claim text.