Viscosity stabilizer for natural rubber, viscosity-stabilized natural rubber composition and process for producing the same, and method of controlling rise in viscosity of natural rubber
    1.
    发明授权
    Viscosity stabilizer for natural rubber, viscosity-stabilized natural rubber composition and process for producing the same, and method of controlling rise in viscosity of natural rubber 失效
    用于天然橡胶的粘度稳定剂,粘度稳定的天然橡胶组合物及其制备方法,以及控制天然橡胶粘度上升的方法

    公开(公告)号:US06743853B1

    公开(公告)日:2004-06-01

    申请号:US08986167

    申请日:1997-12-05

    申请人: Kuninori Mitarai

    发明人: Kuninori Mitarai

    IPC分类号: C08L700

    CPC分类号: C08K3/04 C08K3/36 C08L7/00

    摘要: Provided are a viscosity stabilizer comprising carbon black and/or silica and further blended with at least one selected from the group consisting of a plasticizer, a processing aid, a softening agent and a dispersant, a viscosity-stabilized natural rubber composition blended with the viscosity stabilizer described above in an amount of 5 to 80 parts by weight per 100 parts by weight of natural rubber, a process for producing a viscosity-stabilized natural rubber composition, which comprises adding the viscosity stabilizer described above to natural rubber in producing a natural rubber master batch, and a method of controlling a rise in the viscosity of natural rubber, which comprises adding the viscosity stabilizer described above to natural rubber in producing a natural rubber master batch.

    摘要翻译: 提供了包含炭黑和/或二氧化硅的粘度稳定剂,并进一步与选自增塑剂,加工助剂,软化剂和分散剂中的至少一种混合,粘度稳定的天然橡胶组合物与粘度 稳定剂,其量为每100重量份天然橡胶5至80重量份,一种制备粘度稳定的天然橡胶组合物的方法,其包括将上述粘度稳定剂加入到天然橡胶中以制备天然橡胶 母料和控制天然橡胶粘度上升的方法,其包括在天然橡胶母料的生产中将天然橡胶中加入上述粘度稳定剂。

    Elastomers having a reduced hysteresis via interaction of polymer with silica surfaces
    5.
    发明授权
    Elastomers having a reduced hysteresis via interaction of polymer with silica surfaces 有权
    弹性体通过聚合物与二氧化硅表面的相互作用具有减小的滞后

    公开(公告)号:US06423781B1

    公开(公告)日:2002-07-23

    申请号:US09724212

    申请日:2000-11-28

    IPC分类号: C08L700

    摘要: The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with an initiator and a coordinator; effecting polymerization conditions; terminating polymerization with a terminator containing an organo-tin group to form a tin-coupled diene elastomer; compounding the tin-coupled diene elastomer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanization. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhibits decreased rolling resistance in the tire.

    摘要翻译: 通过将二烯单体和任选的单乙烯基芳族单体与引发剂和协调剂混合来制备二氧化硅填充的硫化弹性体化合物中的滞后的降低; 影响聚合条件; 用包含有机锡基团的终止剂终止聚合以形成锡偶合的二烯弹性体; 将锡偶合二烯弹性体与无定形二氧化硅填料和硫化剂混合; 并进行硫化。 包含硫化弹性体复合材料的充气轮胎胎面涂料在轮胎中表现出降低的滚动阻力。

    Rubber composition and crosslinked rubber
    6.
    发明授权
    Rubber composition and crosslinked rubber 有权
    橡胶组合物和交联橡胶

    公开(公告)号:US06642315B2

    公开(公告)日:2003-11-04

    申请号:US10089511

    申请日:2002-03-29

    IPC分类号: C08L700

    CPC分类号: C08L21/00 C08L2666/08

    摘要: A rubber composition containing (A) a sulfur cross-linkable rubber and (B) a conjugated diene-based rubber gel, having a toluene swelling index of 16 to 70, comprising 40 to 75% by weight of conjugated diene monomer units and 60 to 25% by weight of aromatic vinyl monomer units.

    摘要翻译: 含有(A)可硫交联橡胶的橡胶组合物和甲苯溶胀指数为16〜70的(B)共轭二烯系橡胶凝胶,含有40〜75重量%的共轭二烯单体单元,60〜 25重量%的芳族乙烯基单体单元。

    Process for the production of cross-linked rubber particles
    8.
    发明授权
    Process for the production of cross-linked rubber particles 失效
    生产交联橡胶颗粒的方法

    公开(公告)号:US06605671B2

    公开(公告)日:2003-08-12

    申请号:US09907233

    申请日:2001-07-17

    申请人: Werner Obrecht

    发明人: Werner Obrecht

    IPC分类号: C08L700

    摘要: The invention discloses an improved process for the production of cross-linked rubber particles. The cross-linking agents are added to the aqueous rubber dispersions and converted at relatively high temperatures without inertization of the reaction mix and without pressurizing of an inert gas. The cross-linked rubber particles are suitable, for example, for the production of technical rubber products and for various tire components.

    摘要翻译: 本发明公开了一种生产交联橡胶颗粒的改进方法。 将交联剂添加到水性橡胶分散体中,并在相对高的温度下转化而不使反应混合物惰性化并且不加入惰性气体。交联橡胶颗粒适用于例如生产技术性橡胶 产品和各种轮胎组件。