Bis-(thiobenzoyldisulfido)-alkanes
    2.
    发明授权
    Bis-(thiobenzoyldisulfido)-alkanes 失效
    双 - (硫代苯甲酰基二硫代)烷烃

    公开(公告)号:US5442099A

    公开(公告)日:1995-08-15

    申请号:US152702

    申请日:1993-11-16

    CPC分类号: C07C327/36 C08K5/38

    摘要: Polysulfide compounds and vulcanization compositions containing the polysulfide compounds, for use in vulcanizing rubbers, are disclosed, with the polysulfide compounds being of the formula ##STR1## wherein R.sup.1 -R.sup.4 are each, independently, hydrogen or C.sub.1 -C.sub.4 alkyl and n is 2 to 10wherein the polysulfide compounds can be used alone or in a vulcanization composition containing the polysulfide compound, sulfur, one or more additional accelerators, one or more basic compounds and, optionally, conventional rubber additives, to provide vulcanized products with improved reversion stability and ageing stability.

    摘要翻译: 公开了用于硫化橡胶的含硫化合物的多硫化物化合物和硫化组合物,其中多硫化合物具有式“C1”或C 1 -C 4烷基,n为2至10,其中多硫化物可单独使用或 在含有多硫化合物,硫,一种或多种另外的促进剂,一种或多种碱性化合物和任选的常规橡胶添加剂的硫化组合物中,以提供具有改进的逆转稳定性和老化稳定性的硫化产品。

    Heat-sealable vulcanizates comprising polyolefin rubber and propylene
polymer
    3.
    发明授权
    Heat-sealable vulcanizates comprising polyolefin rubber and propylene polymer 失效
    包含聚烯烃橡胶和丙烯聚合物的可热封硫化橡胶

    公开(公告)号:US4086301A

    公开(公告)日:1978-04-25

    申请号:US682402

    申请日:1976-05-03

    摘要: Polyolefin rubber compositions which are readily heat-sealable are provided by the addition of 5-100 parts by weight, based on the polyolefin elastomer, of a propylene polymer uniformly admixed therewith prior to vulcanization which is selected from the group consisting of polypropylene and copolymers of propylene with up to 20% by weight of ethylene, butene-1 or hexene-1 which polymer has a heptane-extractable portion of 5-60%, and I-value measured according to DIN 53 728 of 100-600 cm.sup.3 /g. and a yield point measured according to DIN 53 735 of 10-30 N/mm.sup.2.

    摘要翻译: 易于热封的聚烯烃橡胶组合物通过在硫化之前与基于聚烯烃弹性体相加的丙烯聚合物加入5-100重量份的丙烯聚合物来提供,丙烯聚合物选自聚丙烯和共聚物 具有至多20重量%的乙烯,丁烯-1或己烯-1的丙烯,该聚合物的庚烷可萃取部分为5-60%,I值根据DIN 53 728测量为100-600cm 3 / g。 并且根据DIN 53735测量的屈服点为10-30N / mm2。

    Process for the preparation of diene rubber vulcanizates
    4.
    发明授权
    Process for the preparation of diene rubber vulcanizates 失效
    二烯橡胶硫化胶的制备方法

    公开(公告)号:US5342900A

    公开(公告)日:1994-08-30

    申请号:US937109

    申请日:1992-08-31

    CPC分类号: C08K5/39

    摘要: Vulcanization of diene rubbers at a temperature of from 140.degree. to 200.degree. C. in the presence of 1 to 4.5 parts of a crosslinker having the formula ##STR1## wherein n denotes 2 or 6 and Bz denotes benzyl, in the simultaneous presence of a very small amount of sulfur and a small amount of a mercapto or sulfenamide accelerator or mixtures thereof affords elastomers having a previously unachieved outstanding ageing stability and reversion stability, after relatively short vulcanization times using economical amounts of chemicals while avoiding blooming phenomena in the vulcanizate.

    摘要翻译: 在1〜4.5份具有式苄基的交联剂的存在下,在140〜200℃的温度下使二烯橡胶硫化,同时存在极少量的硫和少量的 巯基或次磺酰胺促进剂或其混合物,提供具有先前未达到的优异的老化稳定性和回复稳定性的弹性体,在经过相当短的硫化时间之后,使用经济量的化学品同时避免硫化橡胶中的起霜现象。

    Process for adjusting the cis-trans-double bond configuration in
polyalkenamers
    5.
    发明授权
    Process for adjusting the cis-trans-double bond configuration in polyalkenamers 失效
    用于调节多烯烃中顺式 - 反式 - 双键构型的方法

    公开(公告)号:US4950826A

    公开(公告)日:1990-08-21

    申请号:US899452

    申请日:1986-08-22

    IPC分类号: C08G61/00 C08G61/06 C08G61/08

    CPC分类号: C08G61/08

    摘要: Process for adjusting the cis-trans-double bond configuration in polyalkenamers produced by ring-opening polymerization of cis,cis-1,5-cyclooctadiene or 2-norbornene wherein the polymerization is performed in the presence of isoprene and/or a cyclic olefin with a double-bond pair in the 1,3-position.

    摘要翻译: 通过顺式,顺式-1,5-环辛二烯或2-降冰片烯的开环聚合制备的聚烯烃中的顺式 - 反式双键构型的调节方法,其中聚合在异戊二烯和/或环烯烃存在下进行, 在1,3位的双键对。

    Coupling agents for vulcanizable mixtures of unsaturated rubbers and
silicon-containing fillers
    7.
    发明授权
    Coupling agents for vulcanizable mixtures of unsaturated rubbers and silicon-containing fillers 失效
    不饱和橡胶和含硅填料的可硫化混合物的偶联剂

    公开(公告)号:US4956498A

    公开(公告)日:1990-09-11

    申请号:US373272

    申请日:1989-06-28

    CPC分类号: C07F7/1836 C08K5/5406

    摘要: A coupling agent for vulcanizable mixtures of rubbers and mineral fillers which is the reaction product of a 2(3)-chloroacetoxy-5-(2'-trialkoxysilyethyl)norbornane of the formula: ##STR1## wherein R.sup.1 is methyl and/or ethyl, with a thiosulfonic acid salt of the formula:R.sup.2 --SO.sub.2 SMe (II)wherein R.sup.2 is a (cyclo)aliphatic or aromatic hydrocarbon radical having up to 20 carbon atoms, and Me is sodium or potassium.

    摘要翻译: 作为下式的2(3) - 氯乙酰氧基-5-(2'-三烷氧基甲硅烷基)降冰片烷与下式的反应产物的橡胶和矿物填料的可硫化混合物的偶联剂:其中R1是甲基和/ 或乙基与下式的硫代磺酸盐反应:R2-SO2SMe(II)其中R2是具有至多20个碳原子的(环)脂族或芳族烃基,Me是钠或钾。

    Adhesion promoters for the production of volcanizates having a favorable
filler/elastomer bond
    8.
    发明授权
    Adhesion promoters for the production of volcanizates having a favorable filler/elastomer bond 失效
    用于生产具有良好填料/弹性体键的火山灰的粘合促进剂

    公开(公告)号:US4681961A

    公开(公告)日:1987-07-21

    申请号:US827695

    申请日:1986-02-10

    CPC分类号: C07F7/1836 C08K5/548

    摘要: Novel adhesion promoters having, on the one hand, groups capable of forming a stable chemical bond with the surface of silicic acids and silicates (siloxane bond) and, on the other hand, groups capable of forming, during vulcanization, a stable chemical bond with an elastomer (sulfur bridges) are provided. They are consequently suitable as adhesion promoters for the production of vulcanizates exhibiting a favorable filler/elastomer bond. They are oligosulfanes of the formula(RO).sub.3 Si--Y--S.sub.x --Y--Si(OR).sub.3wherein R, Y and x are defined herein, or a mixture of an oligosulfane of this formula (main product) and of a structurally related, substantially dimeric condensation product, which is characterized by a siloxane bond (by-product).

    摘要翻译: 新型粘合促进剂一方面是能够与硅酸和硅酸盐(硅氧烷键)的表面形成稳定的化学键的基团,另一方面,在硫化期间能够形成与 提供弹性体(硫桥)。 因此,它们适合作为用于生产显示出良好的填料/弹性体粘合剂的硫化胶的粘合促进剂。 它们是式(RO)3Si-Y-Sx-Y-Si(OR)3的低聚硫烷,其中R,Y和x如本文所定义,或该式(主要产物)的低聚硫烷与结构相关的 ,基本上二聚缩合产物,其特征在于硅氧烷键(副产物)。