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Piperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materials
Piperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materials
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机译:高级二三元和多元脂族羧酸的哌啶酯作为聚合物材料的稳定剂
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摘要
Piperidyl esters of the formula ##STR1## wherein R.sub.1 is hydrogen or lower alkyl, R.sub.2 is hydrogen, oxyl alkyl, alkenyl, alkinyl, alkoxy- alkyl, aralkyl or lower acyl and n is 2 or 3, and when n is 2, R.sub.3 is a diacyl of 36 carbons and when n is 3, R.sub.3 is a triacyl of 37 to 54 carbons. These compounds are useful as light stabilizers of polymeric materials.
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