Mixtures of chloroprene polymers and the production thereof
    1.
    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。

    Process for the production of storable 2-chloro-1,3-butadiene/sulfur
copolymers
    3.
    发明授权
    Process for the production of storable 2-chloro-1,3-butadiene/sulfur copolymers 失效
    用于生产可存储的2-氯-1,3-丁二烯/硫共聚物的方法

    公开(公告)号:US4303765A

    公开(公告)日:1981-12-01

    申请号:US159770

    申请日:1980-06-06

    CPC分类号: C08F36/18 C08C19/08

    摘要: A process for the production of storable 2-chloro-1,3-butadiene/sulphur copolymers by peptization using sulphur containing petizing agents, wherein a compound corresponding to the following general formula:R.sub.1 --S.sub.n --R.sub.1whereinn represents an integer having a value of from 2 to 10, preferably from 3 to 8 and, more particularly, from 4 to 6; and R.sub.1 represents a C.sub.6 -C.sub.14 aryl radical, a C.sub.6 -C.sub.14 aryl-C.sub.1 -C.sub.3 alkyl radical or a heterocycle containing from 1 to 3 hereto atoms, such as N, which may be the same or different and which may optionally be substituted;optionally in combination with a nucleophilic substance, is added to the latex and peptized at from 5.degree. to 100.degree. C. and at pH of from 14 to 3.

    摘要翻译: 一种通过使用含硫化合物的胶溶而制备可存储的2-氯-1,3-丁二烯/硫共聚物的方法,其中对应于以下通式的化合物:R1-Sn-R1其中n表示具有值的整数 为2至10,优选3至8,更特别为4至6; 并且R 1表示C 6 -C 14芳基,C 6 -C 14芳基-C 1 -C 3烷基或含有1至3个原子的杂环,例如N,其可以相同或不同,并且可任选被取代; 任选地与亲核物质组合,加入到胶乳中并在5℃至100℃,pH为14至3下胶溶。

    Polychloroprene mixtures and the use thereof
    4.
    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
    5.
    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
    6.
    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。

    Continuous polymerization of chloroprene
    7.
    发明授权
    Continuous polymerization of chloroprene 失效
    氯丁二烯的连续聚合

    公开(公告)号:US4521576A

    公开(公告)日:1985-06-04

    申请号:US556580

    申请日:1983-11-30

    CPC分类号: C08F36/18

    摘要: A process for the production of storable polychloroprene having reduced tackiness on mixing rolls by the continuous polymerization of chloroprene and, optionally, up to 50%, by weight, of a monomer copolymerizable with chloroprene in aqueous alkaline emulsion in the presence of emulsifiers and radical initiators at temperatures of from 0.degree. to 70.degree. C., followed by isolation, characterized in that from 90 to 150 parts, by weight, of water, from 2.5 to 4.0 parts, by weight of a potassium salt of disproportionated abietic acid (based on acid), from 0.3 to 1.0 parts, by weight, of a condensation product of naphthalene sulphonic acid and formaldehyde and from 0.2 to 1.5 parts, by weight, of potassium hydroxide, all the quantities being based on 100 parts, by weight, of monomer, are used for the polymerization reaction.

    摘要翻译: 在乳化剂和自由基引发剂的存在下,通过连续聚合氯丁二烯和任选地至多50重量%的可与氯丁二烯共聚的单体在水性碱性乳液中连续聚合制备具有降低的混合辊粘性的方法 在0℃至70℃的温度下,然后分离,其特征在于,90至150重量份的水,2.5至4.0重量份歧化松香酸钾盐(基于 酸),0.3至1.0重量份的萘磺酸和甲醛的缩合产物和0.2至1.5重量份的氢氧化钾,所有量基于100重量份的单体 ,用于聚合反应。