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49 条记录 (耗时 0.016 秒)

    Method for producing oil-resistant elastomer and oil-resistant seal member
    2.
    发明申请
    Method for producing oil-resistant elastomer and oil-resistant seal member 审中-公开
    耐油弹性体和耐油密封件的制造方法

    公开(公告)号：US20060276612A1

    公开(公告)日：2006-12-07

    申请号：US11455525

    申请日：2006-06-19

    申请人： Hitoshi Shirasaka

    发明人： Hitoshi Shirasaka

    IPC分类号： C08G18/00

    CPC分类号： C08G18/87 ,  C08G18/4238 ,  C08G18/4277 ,  C08G18/86

    摘要： The invention provides a method for producing an oil-resistant elastomer being cross-linked millable polyurethane obtained by polyaddition of at least one polyester diol and at least one diisocyanate, comprising the steps of:selecting the kinds and blend proportion of the at least one polyester diol and the at least one diisocyanate, respectively, so that the resulting polyurethane has an ester group concentration of at least 25 wt. % (5.7 mmol/g) and less than 35 wt. % (8 mmol/g) and a urethane group concentration of at least 7 wt. % (1.2 mmol/g) and less than 12 wt. % (2.0 mmol/g), reacting the at least one polyester diol and at least one diisocyanate to produce a millable polyurethane, and crosslinking the millable polyurethane with a curing agent to form an oil-resistant elastomer which has a rubber hardness of JIS A 95° or less and an elongation at break of at least 100%, wherein the elastomer exhibits a percent change in weight, when exposed to IRM 903 lubricating oil, of 20% or less.

    摘要翻译： 本发明提供一种生产耐油弹性体的方法，所述耐油弹性体是通过加入至少一种聚酯二醇和至少一种二异氰酸酯得到的交联的可研式聚氨酯，其包括以下步骤：选择所述至少一种聚酯 二醇和至少一种二异氰酸酯，使得所得聚氨酯的酯基浓度至少为25wt。 ％（5.7mmol / g）和小于35wt。 ％（8mmol / g）和氨基甲酸酯基浓度至少为7wt。 ％（1.2mmol / g）和小于12wt。 ％（2.0mmol / g），使至少一种聚酯二醇和至少一种二异氰酸酯反应制备可碾碎的聚氨酯，并用固化剂交联可碾碎的聚氨酯，形成橡胶硬度为JIS A的耐油弹性体 95°以下，断裂伸长率为100％以上，当暴露于IRM 903润滑油时，弹性体的重量变化率为20％以下。

    Factice-like materials based on polyesters
    4.
    发明授权
    Factice-like materials based on polyesters 失效
    基于聚酯的类似材料

    公开(公告)号：US3845020A

    公开(公告)日：1974-10-29

    申请号：US32455973

    申请日：1973-01-17

    申请人： ARMSTRONG CORK CO

    发明人： HARRIS T

    IPC分类号： C08G18/68 ,  C08G18/87 ,  C08G63/91 ,  C08G17/14

    CPC分类号： C08G63/918 ,  C08G18/68 ,  C08G18/87

    摘要： 1. A PROCESS FOR THE PRODUCTION OF FACTICE-LIKE PRODUCTS WHICH COMPRISES BLENDING A LIQUID UNSATURATED POLYESTER WITH, BASED ON THE WEIGHT OF THE MIXTURE, FROM 5 TO 15 PERCENT BY WEIGHT SULFUR AND REACTING THE MIXTURE BY MIXING AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 275* TO 375* F. FOR A PERIOD OF TIME SUFFICIENT TO FORM A SEMICURED, RUBBERY, CRUMBLY MASS, SAID LIQUID POLYESTER HAVING AN AVERAGE MOLECULAR WEIGHT OF BETWEEN ABOUT 2,000 AND 5,500 AND BEING THE CONDENSATION PRODUCT OF, IN RELATIVE PROPORTIONS; (A) 0 TO 50 OOL PERCENT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHTHALIC ANHYDRIDE, O-PHTHALIC ACID AND ESTERS, OF O-PHTHALIC ACID; (B) 0 TO 50 MOL PERCENT OT TERAHYDROPHTHALIC ACID OR ITS ANHYDRIDE; (C) 0 TO 50 MOL PERCENT OF TRIMETHYLOLPROPANE MONOALLYLETHER F GLYCEROL MONOALLYLETHER; (D) 0 TO 50 MOL PERCENT OF A POLYOXYALKYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 400 TO 4,000; AND (E) 0 TO 50 MOL PERCENT OF AN ALKYLENE GLYCOL OF THE FORMULA HO-R-OH WHEREIN R IS AN ALKYLENE RADICAL OF 2 TO 6 CARBON ATOMS; 50 MOL PERCENT OF SAID REACTANTS BEING SELECTED FROM THE ACID REACTANTS AND 50 MOL PERCENT OF THE REACTANTS BEING SELECTED FROM THE ALCOHOL REACTANTS WITH 5 TO 70 MOL PERCENT OF SAID REACTANTS BEING UNSATURATED AND SELECTED FROM (B) AND (C).

    Acceleration of sulfur vulcanization of polyurethanes
    6.
    发明授权
    Acceleration of sulfur vulcanization of polyurethanes 失效
    加速聚氨酯的硫化

    公开(公告)号：US3669932A

    公开(公告)日：1972-06-13

    申请号：US3669932D

    申请日：1970-10-15

    申请人： ESTABLISSEMENTS MICHELIN RAISO

    发明人： MASSOUBRE JEAN-MARIE

    IPC分类号： C08G18/00 ,  C08G18/67 ,  C08G18/83 ,  C08G18/87 ,  C08G22/34

    CPC分类号： C08G18/87 ,  C08G18/67

    摘要： The sulfur vulcanization of sulfur-vulcanizable unsaturated polyurethanes can be accelerated by using as an accelerator an organic compound having at least one alkenyl radical attached to a nitrogen atom, the accelerator being attached to the sulfurvulcanizable polyurethane molecule itself and/or being an ingredient of a sulfur-vulcanizable polyurethane mixture or recipe.

    摘要翻译： 硫可硫化的不饱和聚氨酯的硫硫化可以通过使用具有至少一个与氮原子连接的烯基的有机化合物作为促进剂加速，加速剂与硫可硫化聚氨酯分子本身连接和/或成分 的可硫化聚氨酯混合物或配方。

    Method for preparing amorphous polymer chains in elastomers
    7.
    发明授权
    Method for preparing amorphous polymer chains in elastomers 失效
    在弹性体中制备无定形聚合物链的方法

    公开(公告)号：US6103852A

    公开(公告)日：2000-08-15

    申请号：US758882

    申请日：1996-12-02

    申请人： Hitoshi Shirasaka

    发明人： Hitoshi Shirasaka

    IPC分类号： C08G18/10 ,  C08G18/42 ,  C08G18/86 ,  C08G18/87

    CPC分类号： C08G18/87 ,  C08G18/10 ,  C08G18/4277 ,  C08G18/86 ,  C08G2250/00

    摘要： A method for preparing an amorphous polymer chain in an elastomer which permits use of previously unavailable monomers while permitting control of crystallizability of the amorphous polymer chain. The method of the present invention thus permits an increased range of industrial scale production by broadening the range of raw materials which can be used and by increasing the design options in constructing the chain.

    摘要翻译： 一种在弹性体中制备无定形聚合物链的方法，其允许使用先前不可用的单体，同时允许控制无定形聚合物链的可结晶性。 因此，本发明的方法允许通过扩大可以使用的原料的范围和通过增加构建链的设计选项来增加工业规模生产的范围。

    Process for producing elastomers from hetero-disperse systems by casting from liquid mass
    8.
    发明授权
    Process for producing elastomers from hetero-disperse systems by casting from liquid mass 失效
    通过从液体质量铸造从异质分散体系生产弹性体的方法

    公开(公告)号：US4225683A

    公开(公告)日：1980-09-30

    申请号：US16662

    申请日：1979-02-28

    申请人： Thies Timm ,  Claus Hartwig

    发明人： Thies Timm ,  Claus Hartwig

    IPC分类号： C08G18/00 ,  B29C39/00 ,  C08G18/86 ,  C08G18/87 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08L75/00 ,  C08L75/04 ,  C08L75/14 ,  C08L77/00 ,  C08L101/00

    CPC分类号： C08G18/87 ,  C08G18/86 ,  C08L75/14

    摘要： Process for producing elastomer materials which are abrasion resistant in the heat, based on polyurethanes and polyoxides, by reacting aliphatic or aromatic diisocyanates, low molecular polydiols or polydiamines and hydroxyl-containing polyesters or polyethers with a molecular weight between 800 and 5000, especially between 2000 and 3000, in equimolar quantities and in liquid phase, characterized by performing the reaction in the presence of rubber powder having diene units incorporated therein, the powder being dispersed in the reaction mass in an amount of 20%-50% by weight, the reaction being carried out in the presence of sulfur or a peroxide, and the rubber powder having a particle size between 5 and 500.mu., the polyurethane reaction mass having a surplus of double bonds capable of cross-linking and casting the elastomer so produced from the liquid mass into molds. Tires made from the elastomers according to the invention are of excellent properties in their tread surfaces.

    摘要翻译： 通过使脂族或芳族二异氰酸酯，低分子量聚二醇或聚二胺和含羟基的聚酯或分子量在800和5000之间，特别是2000之间的聚醚反应，在基于聚氨酯和多氧化物的基础上耐热耐磨的弹性体材料的制备方法 和3000，以等摩尔量和液相，其特征在于在其中掺入二烯单元的橡胶粉末存在下进行反应，粉末分散在反应物料中的量为20重量％〜50重量％，反应 在硫或过氧化物的存在下进行，并且具有5〜500μm的粒径的橡胶粉末，所述聚氨酯反应物质具有过剩的双键，能够从液体中交联并浇铸弹性体 大量进入模具。 由根据本发明的弹性体制成的轮胎在其胎面表面具有优异的性能。