Process for the production of vulcanizable mercaptan-and/or xanthogen
disulfide-regulated polychloroprene rubbers with minimal mold fouling
    2.
    发明授权
    Process for the production of vulcanizable mercaptan-and/or xanthogen disulfide-regulated polychloroprene rubbers with minimal mold fouling 失效
    生产可硫化硫醇和/或黄原二硫键调节聚氯丁二烯橡胶的方法,具有最小的模具污染

    公开(公告)号:US5298580A

    公开(公告)日:1994-03-29

    申请号:US946655

    申请日:1992-09-18

    CPC分类号: C08F36/18

    摘要: Vulcanizable, mercaptan- and/or xanthogen-disulfide-regulated polychloroprene rubber are produced by emulsion polymerization of chloroprene and, based on polymerizable monomer used, 0 to 30 parts by weight ethylenically unsaturated, other monomers copolymerizable with chloroprene in an alkaline medium by a process in which(1) 0.1 to 10 parts by weight of a tricyclic diterpene carboxylic acid containing at least two conjugated C.dbd.C double bonds per molecule, based on the polymerizable monomer used, and optionally(2) 0.1 to 5 parts by weight, based on polymerizable monomer used, fatty acid estersare used for their production.The polychloroprene produced in accordance with the invention may be used for the production of vulcanized rubber articles. The polychloroprene rubbers produced by the process according to the invention have a minimal tendency to foul metal molds. The pollution of wastewaters by the process according to the invention is minimal. The well-known favorable properties of polychloroprene remain unaffected.

    摘要翻译: 通过氯丁二烯的乳液聚合制备可硫化,硫醇和/或黄原二硫化物调节的聚氯丁二烯橡胶,并且基于所使用的可聚合单体,0至30重量份烯键式不饱和,可通过工艺在碱性介质中与氯丁二烯共聚的其它单体 其中(1)基于所使用的可聚合单体,每分子含有至少两个共轭C = C双键的三环二萜羧酸0.1至10重量份,和任选地(2)0.1至5重量份的基于 在使用的可聚合单体上,使用脂肪酸酯来制造。 根据本发明生产的聚氯丁二烯可用于硫化橡胶制品的生产。 通过根据本发明的方法生产的聚氯丁二烯橡胶具有污染金属模具的最小趋势。 通过根据本发明的方法对废水的污染是最小的。 聚氯丁二烯的众所周知的有利特性保持不变。

    Polymerization of chloroprene
    7.
    发明授权
    Polymerization of chloroprene 失效
    氯丁二烯的聚合

    公开(公告)号:US4786698A

    公开(公告)日:1988-11-22

    申请号:US132975

    申请日:1987-12-15

    CPC分类号: C08F36/18

    摘要: Gel-free polychloroprene is obtained, at high monomer conversions, using a polymerization initiator comprising sodium dithionite or a mixture of sodium dithionite with formamidinesulphinic acid or with potassium peroxydisulphate or with formamidinesulphinic acid and potassium peroxodisulphate or with potassium peroxodisulphate and sodium anthraquinon-.beta.-sulphonate or with formamidinesulphinic acid and potassium peroxodisulphate and sodium anthraquinone-.beta.-sulphonate, and in the presence of oxygen and a chain transfer agent when 30 to 90% of the initiator is present at the commencement of polymerization and the remainder is added in portions during the polymerization, only further sodium dithionite being added at a conversion >60% in the case of an initiator combination, and when 20 to 80% by weight of the total amount of chain transfer agents is present before or at the commencement of polymerization and the remaining amount is added in one or more parts at monomer conversions of greater than 20%.

    摘要翻译: 使用包含连二亚硫酸钠或连二亚硫酸钠与甲酰胺亚磺酸钠或与过氧二硫酸钾或与甲脒亚磺酸和过氧二硫酸钾或与过氧二硫酸钾和蒽醌-β-磺酸钠的混合物的聚合引发剂,以高单体转化率获得无凝胶的聚氯丁二烯 或与甲酰胺亚磺酸和过二硫酸钾和蒽醌-β-磺酸钠反应,并且在氧和链转移剂存在下,当聚合开始时存在30至90%的引发剂,其余部分在 在引发剂组合的情况下,只有进一步的连二亚硫酸钠以60%的转化率加入,并且当在聚合开始之前或在聚合开始时存在20至80重量%的链转移剂的总量 在单体转化时,一个或多个部分加入量 大于20%。

    Rubber composition, method of adding and blending the composition and vehicle tire made from the composition
    8.
    发明授权
    Rubber composition, method of adding and blending the composition and vehicle tire made from the composition 失效
    橡胶组合物,添加和混合由组合物制成的组合物和车辆轮胎的方法

    公开(公告)号:US06207757B1

    公开(公告)日:2001-03-27

    申请号:US09365227

    申请日:1999-07-30

    IPC分类号: C08K334

    摘要: A rubber composition which contains a rubber mixture that can be vulcanized with a vulcanizing agent, which includes at least one rubber component, at least one filler having nucleophilic groups, gel particles comprising a rubber, having a particle size between about 3×10−9 and about 1×10−6 m and a swelling index in toluene of about 1 to about 15 and whose surface has electrophilic centers, and a substance acting as a coupling agent between the filler having nucleophilic groups and the additional filler, the substance acting as a coupling agent having the following structure: X—R1—Si—(R2)3, wherein X is a nucleophilic group, R1 is an alkyl group having up to about 6 carbon atoms or a phenyl group, and R2 may be the same as or different from each other and from R1 and is an alkyl or alkoxy group having up to 6 carbon atoms and at least one of R2 is an alkoxy group. The rubber composition has improved hysteresis behavior in the vulcanized state so that with the use of this rubber composition in tires, the rolling resistance is reduced and the wet slippage behavior is improved in relation to conventional rubber compositions. A method of adding and blending the rubber composition as well as a composition useful for tire treads and vehicle tires containing the composition are disclosed.

    摘要翻译: 一种橡胶组合物,其包含可以用硫化剂硫化的橡胶混合物,其包括至少一种橡胶组分,至少一种具有亲核基团的填料,包含橡胶的凝胶颗粒,其具有约3×10 -9和约 1×10 -6 m,甲苯中的溶胀指数为约1至约15,并且其表面具有亲电子中心,以及作为在具有亲核基团的填料和附加填料之间的偶联剂的物质,作为偶联剂的物质具有 以下结构:X-R1-Si-(R2)3,其中X是亲核基团,R1是具有高达约6个碳原子的烷基或苯基,R2可以相同或不同 另一个和R 1是具有至多6个碳原子的烷基或烷氧基,并且至少一个R2是烷氧基。 橡胶组合物在硫化状态下具有改善的滞后性能,因此通过在轮胎中使用该橡胶组合物,相对于常规橡胶组合物,滚动阻力降低,湿滑动性能得到改善。 公开了一种添加和混合橡胶组合物的方法以及用于轮胎胎面的组合物和含有该组合物的车辆轮胎。

    Rubber composition, method of formulating the composition and vehicle
tire made from the composition
    9.
    发明授权
    Rubber composition, method of formulating the composition and vehicle tire made from the composition 失效
    橡胶组合物,配制组合物的方法和由该组合物制成的车辆轮胎

    公开(公告)号:US6133364A

    公开(公告)日:2000-10-17

    申请号:US365225

    申请日:1999-07-30

    摘要: A rubber composition, which contains a rubber mixture that can be vulcanized with a vulcanizing agent, which includes at least one rubber component, at least one filler, gel particles comprising a rubber, having a particle size between about 3.times.10.sup.-9 and about 1.times.10.sup.-6 m and a swelling index in toluene of about 1 to about 15 and whose surface has electrophilic centers, and a substance which acts as a coupling agent between the gel particles and which has the structure A--R--A, wherein A is a nucleophilic group, and R is a saturated or unsaturated hydrocarbon group. The rubber composition has improved hysteresis behavior in the vulcanized state so that when this rubber composition is used in tires, the rolling resistance is reduced and the wet slippage behavior is improved in relation to the conventional rubber compositions. A method of formulating the rubber composition as well as a composition useful for tire treads and vehicle tires containing the composition are disclosed.

    摘要翻译: 一种橡胶组合物,其含有可以用硫化剂硫化的橡胶混合物,其包含至少一种橡胶组分,至少一种填料,包含橡胶的凝胶颗粒,其粒度为约3×10 -9至约1×10 -9〜 6μm,甲苯中的溶胀指数为约1〜约15,表面具有亲电子中心,以及作为凝胶粒子之间的偶联剂并具有结构ARA的物质,其中A为亲核基团,R为 是饱和或不饱和烃基。 橡胶组合物在硫化状态下具有改善的滞后性能,使得当该橡胶组合物用于轮胎时,相对于常规橡胶组合物,滚动阻力降低,并且湿滑动性能得到改善。 公开了一种配制橡胶组合物的方法以及用于轮胎胎面的组合物和含有该组合物的车辆轮胎。

    Process for the production of toluene-soluble, sulphur-modified
chloroprene polymers
    10.
    发明授权
    Process for the production of toluene-soluble, sulphur-modified chloroprene polymers 失效
    用于生产甲苯可溶性,硫改性氯丁二烯聚合物的方法

    公开(公告)号:US4920189A

    公开(公告)日:1990-04-24

    申请号:US89934

    申请日:1987-08-25

    CPC分类号: C08F36/18

    摘要: Toluene-soluble, sulphur-modified polychloroprene is obtained by emulsion copolymerization of chloroprene, sulphur and optionally further monomers which are copolymerizable with chloroprene and sulphur using a peroxy activator and subsequent working-up by stabilizing, stopping, degassing and isolating without separate peptization, in that polymerization is carried out in the presence of dithiocarbamates and/or xanthogenates and the activator is metered in continuously or batch-wise during the course of polymerization.

    摘要翻译: 甲苯可溶的硫改性聚氯丁二烯是通过氯丁二烯,硫和任选的其它可与氯丁二烯和硫共聚的其它单体通过使用过氧化物活化剂进行乳液共聚获得的,随后通过稳定,停止,脱气和分离而不分开胶溶, 在二硫代氨基甲酸盐和/或黄原酸盐的存在下进行聚合,并且在聚合过程中连续或间歇地计量活化剂。