Poly 1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylesters useful as
thermal stabilizers for synthetic polymers
    1.
    发明授权
    Poly 1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylesters useful as thermal stabilizers for synthetic polymers 失效
    可用作合成聚合物的热稳定剂的聚1,4-二氢-2,6-二甲基吡啶-3,5-二羧酸酯

    公开(公告)号:US4908398A

    公开(公告)日:1990-03-13

    申请号:US174864

    申请日:1988-03-29

    摘要: Poly-dihydro-2,6-dimethylpyridine-3,5-dicarboxylesters of general formula (I) ##STR1## in which A, B, m, n, k, j, R, R.sup.1 and R.sup.2 have the meanings defined in the text, useful as thermal stabilizers for synthetic polymers, in particular for polyvinylchloride-based masses.The compounds of formula (I) are preferably used in combination with the usual stabilizers based on organic metal derivatives. They can also be used combined with agents which exert a synergic action in maintaining a low color of manufactured articles subjected to heating, and in particular with betadicarbonyl compounds of formula (II):R.sup.3 --CO--CH.sub.2 --CO--R.sup.4 (II)in which R.sup.3 and R.sup.4 have the meanings defined in the text, in masses containing organic calcium and zinc salts as basic stabilizers.

    摘要翻译: 其中A,B,m,n,k,j,R,R 1和R 2的通式(I)的聚二氢-2,6-二甲基吡啶-3,5-二羧酸酯 R2具有本文定义的含义,可用作合成聚合物的热稳定剂,特别是用于聚氯乙烯基质量的热稳定剂。 式(I)的化合物优选与基于有机金属衍生物的通常的稳定剂组合使用。 它们还可以与在保持加热的制品的低颜色,特别是与式(II)的二羧基化合物:R3-CO-CH2-CO-R4(II))中发挥协同作用的试剂结合使用 其中R3和R4具有本文定义的含义,含有有机钙盐和锌盐作为基本稳定剂。