Propane-1,3-dione derivatives and their use as stabilizers for polymers
containing chlorine
    6.
    发明授权
    Propane-1,3-dione derivatives and their use as stabilizers for polymers containing chlorine 失效
    丙-1,3-二酮衍生物及其作为含有氯的聚合物的稳定剂

    公开(公告)号:US5071898A

    公开(公告)日:1991-12-10

    申请号:US360801

    申请日:1989-06-02

    Abstract: Composition containing a) a polymer containing chlorine and b) at least one compound of the formula I ##STR1## in which R.sub.1 is C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 hydroxyalkyl, phenyl, hydroxyphenyl, C.sub.7 -C.sub.10 phenylalkyl or C.sub.7 -C.sub.10 phenylalkyl which is substituted on the phenyl ring by an OH group, and R.sub.2 is C.sub.2 -C.sub.10 hydroxyalkyl, hydroxyphenyl or C.sub.7 -C.sub.10 phenylalkyl which is substituted on the phenyl ring by an OH group, subject to the condition that R.sub.2 is other than hydroxyphenyl if R.sub.1 is phenyl or hydroxyphenyl, and/or at least one compound of the formula I in which the OH groups present in the radicals R.sub.1 and R.sub.2 have been replaced by C.sub.2 -C.sub.12 alkanoyloxy.The compounds of the formula IA ##STR2## in which R is C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 hydroxyalkyl, phenyl, hydroxyphenyl, C.sub.7 -C.sub.10 phenylalkyl or C.sub.7 -C.sub.10 phenylalkyl which is substituted on the phenyl ring by an OH group, are novel.

    Abstract translation: 含有a)含氯的聚合物和b)至少一种式I的化合物其中R 1是C 1 -C 10烷基,C 2 -C 10羟烷基,苯基,羟基苯基,C 7 -C 10苯基烷基或C 7 -C 10苯基烷基,其是 在苯基环上被OH基取代,R2是在苯环上被OH基取代的C2-C10羟烷基,羟基苯基或C7-C10苯基烷基,条件是如果R1是苯基或羟基苯基,则R2不是羟基苯基 ,和/或至少一种其中存在于基团R 1和R 2中的OH基团被C 2 -C 12烷酰氧基取代的式I化合物。 其中R是在OH基上在苯环上取代的C 1 -C 10烷基,C 2 -C 10羟基烷基,苯基,羟基苯基,C 7 -C 10苯基烷基或C 7 -C 10苯基烷基的式IA(IA)化合物。

    Chemical process
    10.
    发明授权
    Chemical process 失效
    化学工艺

    公开(公告)号:US4532356A

    公开(公告)日:1985-07-30

    申请号:US552284

    申请日:1983-11-16

    CPC classification number: C07C49/245 C07C45/68

    Abstract: Novel bis(3',5'-mono or dihydrocarbyl-4'-hydroxybenzyl)-1,3-diketones are prepared by reacting a (3',5'-mono or dihydrocarbyl-4'-hydroxybenzyl)-1,3-diketone with an N,N-dihydrocarbyl-2,6-mono or dihydrocarbyl-4-aminomethylphenol and an alkyl halide in the presence of an alkaline earth metal halide. The products are useful as antioxidants.

    Abstract translation: 通过使(3',5'-单或二烃基-4'-羟基苄基)-1,3-二酮反应,制备新的双(3',5'-单或二烃基-4'-羟基苄基)-1,3-二酮 在碱土金属卤化物存在下与N,N-二烃基-2,6-单或二烃基-4-氨基甲基苯酚和烷基卤二酮进行反应。 该产品可用作抗氧化剂。

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