Polymerization of chloroprene with xanthates and dithiocarbamates
    3.
    发明授权
    Polymerization of chloroprene with xanthates and dithiocarbamates 失效
    氯丁二烯与二硫代氨基甲酸酯的聚合

    公开(公告)号:US4814401A

    公开(公告)日:1989-03-21

    申请号:US161990

    申请日:1988-02-29

    CPC分类号: C08F36/18

    摘要: An improved process for the preparation of polychloroprene by the emulsion (co)polymerization of chloroprene and optionally other monomers capable of copolymerization with chloroprene, using a peroxo activator, and subsequent working up of the product by stopping the reaction, stabilizing, degassing and isolating the product, characterized in that polymerization is carried out in the presence of dithiocarbamates and/or xanthates and 0 to 0.5% by weight of sodium .beta.-anthraquinone sulphonate.

    摘要翻译: 通过氯丁二烯和任选的其它能够与氯丁二烯共聚合的单体(使用过氧化氢活化剂)的乳液(共)聚合,以及随后通过停止反应,稳定化,脱气和分离来处理产物来改进制备聚氯丁二烯的改进方法 产物,其特征在于聚合在二硫代氨基甲酸盐和/或黄原酸盐和0至0.5重量%的β-蒽醌磺酸钠存在下进行。

    Process employing xanthogen disulphides with functional groups to
produce chloroprene polymer blends
    5.
    发明授权
    Process employing xanthogen disulphides with functional groups to produce chloroprene polymer blends 失效
    使用具有官能团的黄原酸二硫化物来制备氯丁二烯聚合物共混物的方法

    公开(公告)号:US3954916A

    公开(公告)日:1976-05-04

    申请号:US570099

    申请日:1975-04-21

    摘要: This invention relates to xanthogen disulphides of the formula ##EQU1## in which R is the same or different and denotes the following groups: ##EQU2## wherein X = H, alkyl, aryl, aralkyl or halogenn = 1 to 20,A process for preparing them, a process for polymerising dienes and monoethylenically unsaturated copolymerizable monomers in the presence of these particular xanthogen disulphides and to vulcanisable rubber mixtures consisting of an uncross-linked benzene soluble chloroprene homopolymer or copolymer which is prepared in the presence of said xanthogen disulphides.

    摘要翻译: 本发明涉及式ROCSSCOR PARALLEL PARALLEL SS的Xanthogen二硫化物,其中R相同或不同,表示以下基团:O O-CX2 ANGLE X2C ANGLE |或X2CCX2 OC-(CX2)n- || | OC-( CX2)n-X ANGLE | CX | X2其中X = H,烷基,芳基,芳烷基或卤素N = 1〜20,其制备方法,聚合二烯和单乙烯基不饱和可共聚单体在这些特定存在下的方法 XANTHOGEN DISULPHIDES和VULCANISABLE RUBBER MIXTURES涵盖一种未经连接的苯乙烯可溶性氯乙烯共聚物或共聚物,它是在存在的XANTHOGEN DISULPHIDES中制备的。

    Mixtures of chloroprene polymers and the production thereof
    6.
    发明授权
    Mixtures of chloroprene polymers and the production thereof 失效
    氯丁二烯聚合物的混合物及其制备

    公开(公告)号:US4443582A

    公开(公告)日:1984-04-17

    申请号:US379919

    申请日:1982-05-19

    摘要: This invention relates to a polychloroprene elastomer distinguished by good processing properties and high tensile strength in the form of a polychloroprene mixture containing a sol polymer and a gel polymer in a ratio, by weight, of from 1:4 to 9:1, characterized in that both polymers have been produced in the presence of from 2.5 to 4.0 parts, by weight, of the potassium salt of disproportionated abietic acid (expressed as acid), from 0.3 to 1.0 part, by weight, of a condensation product of naphthalene sulphonic acid and formaldehyde and from 0.1 to 1.5 parts, by weight, of potassium hydroxide, based in each case on 100 parts, by weight, of monomer, and in that the gel polymer is a copolymer of chloroprene and from 1.5 to 2.5 mole percent, based on total monomer, of a diester corresponding to the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 represent hydrogen, chlorine or C.sub.1 -C.sub.4 alkyl; andX represents C.sub.2 -C.sub.10 alkylene.

    摘要翻译: 本发明涉及一种聚氯丁二烯弹性体,其特征在于以包含溶胶聚合物和凝胶聚合物的重量比为1:4至9:1的聚氯丁二烯混合物形式的良好加工性能和高拉伸强度,其特征在于 两种聚合物已经在2.5至4.0重量份歧化松香酸钾盐(以酸​​表示)的存在下制备,0.3至1.0重量份的萘磺酸的缩合产物 和甲醛,和0.1至1.5重量份的氢氧化钾,基于每种情况下为100重量份的单体,并且凝胶聚合物是氯丁二烯和基于1.5至2.5摩尔%的基于 对于相应于以下通式的二酯的总单体:其中R 1和R 2表示氢,氯或C 1 -C 4烷基; X表示C2-C10亚烷基。

    Polychloroprene mixtures and the use thereof
    7.
    发明授权
    Polychloroprene mixtures and the use thereof 失效
    聚氯丁二烯混合物及其用途

    公开(公告)号:US4485216A

    公开(公告)日:1984-11-27

    申请号:US529389

    申请日:1983-09-06

    CPC分类号: C08L11/00 C08L2205/02

    摘要: Solid polychloroprene mixtures consisting of sol and gel polymer, wherein the sol component consists of a copolymer of chloroprene and from 0.75 to 0.32% by weight of sulphur, based on the total quantity of unsaturated compounds of the sol polychloroprene, and the gel component consists of a copolymer of chloroprene, from 0.4 to 1.0% by weight of sulphur, based on the total quantity of unsaturated compounds of the gel polychloroprene and from 7.5.times.10.sup.-3 to 3.0.times.10.sup.-2 mols, based on 100 g of the total quantity of monomer of the gel polychloroprene, of a compound corresponding to the general formula ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or C.sub.1 -C.sub.4 alkyl group, and X represents a C.sub.2 -C.sub.10 alkylene group,are suitable for the production by extrusion and by calandering of rubber articles which may be subjected to high strains.

    摘要翻译: 由溶胶和凝胶聚合物组成的固体聚氯丁二烯混合物,其中溶胶组分由氯丁二烯和0.75至0.32重量%硫的共聚物组成,基于溶胶聚氯丁二烯的不饱和化合物的总量,凝胶组分由 基于凝胶聚氯丁二烯的不饱和化合物的总量和基于100g单体总量的7.5×10 -3至3.0×10 -2摩尔的氯丁二烯共聚物,为0.4至1.0重量%的硫 的凝胶聚氯丁二烯,其通式为:其中R1和R2各自表示氢原子或C1-C4烷基,X代表C2-C10亚烷基,适用于通过挤出和 通过压缩可能经受高应变的橡胶制品。

    Production of sulfur-modified solid chloroprene rubbers
    8.
    发明授权
    Production of sulfur-modified solid chloroprene rubbers 失效
    生产硫改性固体氯丁橡胶

    公开(公告)号:US4482676A

    公开(公告)日:1984-11-13

    申请号:US473697

    申请日:1983-03-09

    摘要: Vulcanizable, elastomeric chloroprene/sulfur copolymers having viscosities of from 60 to 35 ME, strengths of greater than 20 MPa and sulfur contents of from about 0.3 to 0.45% by weight are obtained by polymerizing chloroprene in the presence of from 0.05 to 0.40% by weight of sulfur to form a latex I, polymerizing chloroprene in the presence of from 0.5 to 1.5% by weight of sulfur to form a latex II, mixing latices I and II, optionally together with other sulfur-modified polychloroprene latices, in a ratio of from 4:1 to 1:4 (based in each case on solids) and peptizing the mixture, followed by working up to form the solid rubber, the percentages quoted being based on the quantity of monomer.

    摘要翻译: 通过在0.05至0.40重量%的存在下聚合氯丁二烯,可获得粘度为60至35MW,强度大于20MPa,硫含量为约0.3至0.45重量%的可硫化的弹性体氯丁二烯/硫共聚物 的硫以形成胶乳I,在0.5至1.5重量%的硫存在下聚合氯丁二烯以形成胶乳II,任选地将胶乳I和II与其它硫改性的聚氯丁二烯胶乳混合,其比例为 4:1至1:4(基于每种情况下为固体)和胶体化混合物,然后加工形成固体橡胶,所引用的百分比基于单体的量。

    Process for the production of sulphur-modified solid chloroprene rubbers
    9.
    发明授权
    Process for the production of sulphur-modified solid chloroprene rubbers 失效
    生产硫改性固体氯丁橡胶的方法

    公开(公告)号:US4452947A

    公开(公告)日:1984-06-05

    申请号:US496413

    申请日:1983-05-20

    摘要: Vulcanisable, elastomeric chloroprene-sulphur copolymers having viscosities of from 60 to 35 MU, strengths of >20 MPa and sulphur contents of from about 0.5 to 0.7%, by weight, in the batch are obtained by polymerising chloroprene in the presence of from 0.10 to 0.35%, by weight, of sulphur to form a latex I, polymerising chloroprene in the presence of from 0.50 to 1.00% by weight, of sulphur to form a latex II, mixing latices I and II in a ratio of from 4:1 to 1:4 (based in each case on solids), optionally together with other sulphur-modified polychloroprene latices, the mixture is peptised and worked-up to form the solid rubber, the percentages quoted being based on the quantity of monomer.

    摘要翻译: 通过将氯丁二烯在0.10〜0.1重量%的存在下聚合,得到批次中粘度为60〜35MW,强度> 20MPa,硫含量为约0.5〜0.7%的可硫化弹性体氯丁二烯 - 硫共聚物 0.35重量%的硫以形成胶乳I,在0.50至1.00重量%的硫存在下聚合氯丁二烯以形成胶乳II,将胶乳I和II以4:1至4:1的比例混合 1:4(基于固体的每种情况),任选地与其它硫改性的聚氯丁二烯胶乳一起,对混合物进行胶溶和后处理以形成固体橡胶,所引用的百分比是基于单体的量。