Polyamides contg additives - prepd in two step process from lactams

    公开(公告)号:FR2110661A5

    公开(公告)日:1972-06-02

    申请号:FR7038555

    申请日:1970-10-26

    Abstract: Flexible, opaque polyamides with good resistance to ageing contg. plasticisers, pigments, flame proofing agents, stabilisers, lubricants or mould release agents, are obtained without the use of mixers and special extruders by polymerising lactams with >=6C in the ring pref. 10C in two steps. The first step consisting of ring opening and partial polymerisation is carried out above 270 degrees C pref. 280-320 degrees C. The temp. is reduced to below 270 degrees C and the mentioned additives added and polymerisation completed as the 2nd step below 270 degrees C. Polymerisation is carried out in presence of mineral or organic acids.

    99.
    发明专利
    未知

    公开(公告)号:FR2102542A5

    公开(公告)日:1972-04-07

    申请号:FR7029213

    申请日:1970-08-07

    Abstract: 1361847 Polymers containing benzothiazole groups AQUITAINE TOTAL ORGANICO 6 Aug 1971 [7 Aug 1970] 37074/71 Heading C3R Polymers of formula or of formula where n is an integer and J and J 1 are direct links or divalent atoms or groups, are obtained by reacting a compound of formula or of formula with a biphenol of formula In examples polymers are obtained by reacting 6,6 1 -bi-(2-chloro-benzothiazolyl)sulphone with 4,4 1 -dihydroxy diphenyl sulphone, with 4,41- dihydroxy-2,2-diphenyl propane and with 4,4 1 - dihydroxy biphenyl, by reacting 5,51-bi-(2- chlorobenzothiazolyl)sulphone with 4,4 1 -dihydroxy biphenyl and with 4,4 1 -dihydroxy diphenyl sulphone, and by reacting 6,61-bi-(2- chlorobenzothiazolyl) with 4,4 1 -dihydroxy biphenyl. Uses.-Films and varnishes.

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