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    • 6. 发明授权
    • Stabilized polyamides
    • 稳定聚酰胺
    • US4426475A
    • 1984-01-17
    • US446943
    • 1982-12-06
    • Bert BrassatHans-Josef BuyschHeinrich HauptKarl H. Hermann
    • Bert BrassatHans-Josef BuyschHeinrich HauptKarl H. Hermann
    • C08L77/00C08K5/18C08K5/36
    • C08K5/18
    • Stabilized polyamides containing from 0.02 to 5%, by weight of a diphenylamine compound corresponding to the following general formula: ##STR1## wherein R.sup.1 and R.sup.3, which may be the same or different, represent hydrogen, a CH.sub.3 --, C.sub.2 H.sub.5 -- or isopropyl group and R.sup.3 is in the o-, m- or p-position to the N-atom substitution;R.sup.2 represents hydrogen, a C.sub.4 -C.sub.12 alkyl, C.sub.7 -C.sub.12 aralkyl or C.sub.5 -C.sub.12 cycloalkyl group and is in the o-, or p-position to the N-atom substitution;n represents an integer of from 1 to 29; andY is a divalent, non-mono-olefinically unsaturated radical having the same meaning as R.sup.2 and, in addition, may represent (in a proportion of up to 50 mole percent) --S--, --CH.sub.2 --S--CH.sub.2 --, --CH.sub.2 --O--CH-- or >CH--R.sup.4, wherein R.sup.4 represents H, C.sub.1 -C.sub.6 alkyl or C.sub.5 or C.sub.6 cycloalkyl, and may be in the o- or p-position to the N-atom substitution.
    • 含有0.02至5%(重量)对应于以下通式的二苯胺化合物的稳定化聚酰胺:其中R 1和R 3可以相同或不同,表示氢,CH 3 - ,C 2 H 5 - 或异丙基,并且R 3与N原子取代的邻,间或对位; R 2表示氢,C 4 -C 12烷基,C 7 -C 12芳烷基或C 5 -C 12环烷基,并且位于与N-取代基的邻位或对位; n表示1〜29的整数, 并且Y是具有与R 2相同含义的二价,非单烯属不饱和基团,并且另外可以表示(以高达50摩尔%的比例)-S - , - CH 2 -S-CH 2 + 13, -CH 2 -O-CH-或> CH-R 4,其中R 4表示H,C 1 -C 6烷基或C 5或C 6环烷基,并且可以在与N-取代基的邻位或对位。