Process for the production of copolymers containing acrylic acid amides
    3.
    发明授权
    Process for the production of copolymers containing acrylic acid amides 失效
    制备含有丙烯酸酰胺的共聚物的方法

    公开(公告)号:US3897404A

    公开(公告)日:1975-07-29

    申请号:US34997073

    申请日:1973-04-11

    Applicant: BAYER AG

    CPC classification number: C08F8/00 C08F20/12

    Abstract: The invention provides a process for the production of ternary and quaternary copolymers containing N,N-disubstituted acrylic acid amides which comprises reacting polyacrylic acid-C1-C4-alkyl ester with secondary alkyl or cycloalkyl monoamines in aprotic solvents at temperatures of from 100* to 250*C and under pressure of from 0 to 100 atms. The reaction products according to the invention are particularly suitable for use as thickeners for printing pastes and as gloss stabilisers for modacrylic filaments and films.

    Abstract translation: 本发明提供一种生产含有N,N-二取代的丙烯酸酰胺的三元和四元共聚物的方法,其包括在非质子传递溶剂中将聚丙烯酸-C 1 -C 4 - 烷基酯与仲烷基或环烷基单胺反应,其温度为100℃至 250℃,压力为0至100atms。 根据本发明的反应产物特别适合用作印刷浆料的增稠剂和用作改性聚丙烯腈丝和薄膜的光泽稳定剂。

    Process for the production of methallyl sulphonic acid and salts thereof
    4.
    发明授权
    Process for the production of methallyl sulphonic acid and salts thereof 失效
    生产甲基磺酸及其盐的方法

    公开(公告)号:US3694493A

    公开(公告)日:1972-09-26

    申请号:US3694493D

    申请日:1969-10-17

    Applicant: BAYER AG

    CPC classification number: C07C309/00

    Abstract: Process for the production of methallyl sulfonic acid and salts thereof by reaction of isobutylene and a complex of sulfur trioxide and an N,N-dialkyl substituted amide of an aliphatic carboxylic acid or a N-alkyl substituted lactam wherein at least 1 mol of isobutylene is used for 1 mol of sulfur trioxide. The methallyl sulfonic acid and their salts are comonomers in the polymerization of olefinic compounds.

    Abstract translation: 通过异丁烯和三氧化硫与N,N-二烷基取代的酰胺的脂族羧酸或N-烷基取代的内酰胺的反应制备甲代烯丙基磺酸及其盐的方法,其中至少1摩尔异丁烯为 用于1mol三氧化硫。 甲烯基磺酸及其盐是烯烃化合物聚合中的共聚单体。

    Process for the production of high molecular weight polybenzoxazinones
    5.
    发明授权
    Process for the production of high molecular weight polybenzoxazinones 失效
    用于生产高分子量聚苯并恶嗪酮的方法

    公开(公告)号:US3669928A

    公开(公告)日:1972-06-13

    申请号:US3669928D

    申请日:1970-06-26

    Applicant: BAYER AG

    CPC classification number: C08G73/06

    Abstract: Improvement in the production of high molecular weight polybenzoxazinones from bis-anthranilic acid derivatives and dicarboxylic acid dihalides followed by ring closure of the polyamidocarboxylic acid obtained, wherein ring closure is effected by a liquid or dissolved dehydrating agent in an organic solvent.

    Abstract translation: 改进了由双 - 邻氨基苯甲酸衍生物和二羧酸二卤化物生产高分子量聚苯并恶嗪酮,然后闭环获得的聚酰胺羧酸,其中通过液体或溶解的脱水剂在有机溶剂中进行闭环。

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