Stabilization of crosslinkable polymers
    1.
    发明授权
    Stabilization of crosslinkable polymers 失效
    可交联聚合物的稳定化

    公开(公告)号:US4145500A

    公开(公告)日:1979-03-20

    申请号:US819162

    申请日:1977-07-26

    CPC分类号: C08F220/44

    摘要: The invention relates to a process for the production of a stabilized crosslinkable copolymer of acrylonitrile which comprises copolymerizing at least 65% by weight of acrylonitrile with from 0.1 to 3% by weight of an N-methylol acyl ester of an ethylenically unsaturated carboxylic acid amide, optionally from 0.5 to 5% by weight of an N-methylol alkyl ether of an ethylenically unsaturated carboxylic acid amide and, optionally, at least one other copolymerizable comonomer in an aqueous medium in the presence of a redox catalyst and in the presence of at least one water-soluble compound containing a carboxylic acid amide group.

    摘要翻译: 本发明涉及一种制备丙烯腈稳定的可交联共聚物的方法,该方法包括将至少65重量%的丙烯腈与0.1-3重量%的烯键式不饱和羧酸酰胺的N-羟甲基酰基酯, 任选的0.5至5重量%的烯键式不饱和羧酸酰胺的N-羟甲基烷基醚和任选的至少一种其它共聚单体在水性介质中,在氧化还原催化剂存在下和至少存在 一种含有羧酸酰胺基团的水溶性化合物。

    Process for the production of polymers containing acrylonitrile
    6.
    发明授权
    Process for the production of polymers containing acrylonitrile 失效
    生产含丙烯腈的聚合物的方法

    公开(公告)号:US4384091A

    公开(公告)日:1983-05-17

    申请号:US310575

    申请日:1981-10-09

    CPC分类号: C08F20/44

    摘要: Acrylonitrile polymers and copolymers with good affinity for basic dyes without sulfonic acid groups containing comonomers are obtained by polymerizing at a temperature of from 0.degree. to 60.degree. C. in an aliphatic hydrocarbon having a boiling point of from -10.degree. to 80.degree. C. or in a mixture of aliphatic hydrocarbons having boiling points in the range from -10.degree. to 80.degree. C. using an initiator system comprising from 0.1 to 8.0 mole percent of sulfur dioxide, from 0.1 to 2.0 mole percent of a hydroperoxide which is soluble in the reaction medium and from 0.01 to 1.0 mole percent of an acid which is soluble in the reaction system in that polymerization is carried out continuously and in that an average residence time of from 10 minutes to 2 hours is maintained.

    摘要翻译: 通过在0〜60℃的温度下在沸点为-10〜80℃的脂肪族烃中进行聚合,得到丙烯腈聚合物和对具有不含磺酸基团的共聚单体的碱性染料具有良好亲和性的共聚物。 或者在沸点为-10℃至80℃的脂族烃的混合物中,使用引发剂体系,其包含0.1至8.0摩尔%的二氧化硫,0.1至2.0摩尔%的可溶于 在该聚合反应中可以连续进行反应介质和0.01〜1.0摩尔%的可溶于反应体系的酸,维持10分钟〜2小时的平均停留时间。

    Polymers containing sulphonyl and carboxylic ester groups
    7.
    发明授权
    Polymers containing sulphonyl and carboxylic ester groups 失效
    含有磺酰基和羧酸酯基团的聚合物

    公开(公告)号:US4535139A

    公开(公告)日:1985-08-13

    申请号:US491682

    申请日:1983-05-05

    CPC分类号: C08F228/02

    摘要: Polymers obtained by radical polymerization and containing(A) from 0.1 to 80 mole percent of polymerized units corresponding to the following formula ##STR1## in which R.sub.1 represents hydrogen or methyl,R.sub.2 represents alkyl, particularly primary or secondary alkyl containing from 1 to 4 carbon atoms, andR.sub.3 represents hydrogen or alkyl, particularly primary or secondary alkyl containing from 1 to 4 carbon atoms, and in which the sulphonic acid group may be present in the form of a salt, and(B) from 20 to 99.9 mole percent of polymerized units of one or more ethylenically unsaturated monomers, are particularly suitable for the production of filaments, fibres and films having a high absorption capacity for basic dyes.

    摘要翻译: 通过自由基聚合获得的聚合物,其含有(A)0.1至80摩尔%的对应于下式的成像单元(IMAGE),其中R 1表示氢或甲基,R 2表示烷基,特别是含有1至4个碳原子的伯或仲烷基 原子,R 3表示氢或烷基,特别是含有1至4个碳原子的伯或仲烷基,其中磺酸基团可以盐形式存在,(B)20-99.9摩尔% 一种或多种烯键式不饱和单体的聚合单元特别适用于生产碱性染料具有高吸收能力的长丝,纤维和薄膜。

    Acrylonitrile polymerization with organic solvent
    9.
    发明授权
    Acrylonitrile polymerization with organic solvent 失效
    丙烯腈与有机溶剂聚合

    公开(公告)号:US4326051A

    公开(公告)日:1982-04-20

    申请号:US170376

    申请日:1980-07-21

    IPC分类号: C08F20/44 C08F2/06 C08F22/30

    CPC分类号: C08F20/44

    摘要: The invention relates to a homopolymer or copolymer of acrylonitrile which comprises from 0 to 30% by weight, incorporated by polymerization, of comonomer units which are free from ionic groups, said polymers having a K-value of from 50 to 100, a dye absorption capacity for cationic dyes of at least 0.5% by weight, a conductivity, measured in dimethylformamide solution, of at least 10.mu. Siemens, and from 0.2 to 1.5% by weight of sulphur fixed to said polymer as well as to a process for the production thereof.

    摘要翻译: 本发明涉及丙烯腈的均聚物或共聚物,其包含0-30重量%,通过聚合引入,不含离子基团的共聚单体单元,所述聚合物的K值为50至100,染料吸收 阳离子染料的能力为至少0.5重量%,在二甲基甲酰胺溶液中测量的至少10微米西门子的电导率和0.2至1.5重量%的固定在所述聚合物上的硫以及生产方法 其中。

    Acrylonitrile polymerization in fluorinated hydrocarbons
    10.
    发明授权
    Acrylonitrile polymerization in fluorinated hydrocarbons 失效
    氟化烃中的丙烯腈聚合

    公开(公告)号:US4255546A

    公开(公告)日:1981-03-10

    申请号:US077460

    申请日:1979-09-20

    CPC分类号: C08F20/44

    摘要: The invention relates to a process for the production of polyacrylonitrile or acrylonitrile copolymers, the polymerization being carried out at a temperature of from -40.degree. to +60.degree. C. optionally under pressure in an aliphatic chlorofluorine or fluorine substituted hydrocarbon containing up to 8 carbon atoms and having a boiling point of from -60.degree. to +50.degree. C. or in mixtures thereof having boiling ranges of from -60.degree. to +50.degree. C. and using a starter system comprising a hydroperoxide sulphur dioxide and an acid. The system may also contain aliphatic hydrocarbons in such quantities that a non-inflammable mixture is formed.

    摘要翻译: 本发明涉及一种生产聚丙烯腈或丙烯腈共聚物的方法,该聚合反应在-40℃至+ 60℃的温度下进行,任选在压力下进行,在含有最多8个碳原子的脂族氯氟氟或氟取代烃中 原子,沸点为-60℃至+ 50℃,或其沸点范围为-60至+50℃的混合物,并使用包含氢过氧化物二氧化硫和酸的起始系统。 该系统还可以含有以不可燃混合物形成的量的脂族烃。