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638 条记录 (耗时 0.026 秒)

    Controllably and swiftly degradable polymer compositions and films and other products made therefrom
    81.
    发明授权
    Controllably and swiftly degradable polymer compositions and films and other products made therefrom 失效
    可控和快速降解的聚合物组合物和由其制成的膜和其它产品

    公开(公告)号：US4939194A

    公开(公告)日：1990-07-03

    申请号：US391703

    申请日：1989-08-04

    申请人： Gerald Scott ,  Dan Gilead

    发明人： Gerald Scott ,  Dan Gilead

    IPC分类号： A01G13/02 ,  C08J5/18 ,  C08K5/00 ,  C08K5/07 ,  C08K5/09 ,  C08K5/38 ,  C08K5/39 ,  C08K5/45 ,  C08K5/47 ,  C08K5/51 ,  C08L101/00 ,  C09K17/52

    CPC分类号： C08K5/0091 ,  A01G13/0275 ,  C08K5/0033 ,  C09K17/52

    摘要： Polymer compositions comprising a vinyl polymer and a combination of at least two metal complexes wherein the complexing agent of the first complex is attached to the metal through oxygen and the metal is a transition metal, and the complexing agent of the second complex is attached to the metal through sulphur and the metal is a transition metal or a metal of group II or IV of the periodic table of the elements, wherein the molar ratio of the second metal complex to the first metal complex is 0.5 or less. A film obtained from such polymer compositions and its use agricultural processes are also claimed.

    摘要翻译： 包含乙烯基聚合物和至少两种金属络合物的组合的聚合物组合物，其中第一配合物的络合剂通过氧连接到金属上，并且金属是过渡金属，并且第二络合物的络合剂附着到 金属通过硫和金属是元素周期表的过渡金属或II或IV族的金属，其中第二金属络合物与第一金属络合物的摩尔比为0.5以下。 还要求由这种聚合物组合物获得的膜及其使用的农业方法。

    Cure system for sulfur vulcanizable rubber
    84.
    发明授权
    Cure system for sulfur vulcanizable rubber 失效
    硫磺硫化橡胶固化体系

    公开(公告)号：US4861842A

    公开(公告)日：1989-08-29

    申请号：US290958

    申请日：1988-12-28

    申请人： Martin P. Cohen ,  Robert J. Brown ,  Norbert Majerus

    发明人： Martin P. Cohen ,  Robert J. Brown ,  Norbert Majerus

    IPC分类号： C08K5/09 ,  C08K3/06 ,  C08K3/22 ,  C08K5/04 ,  C08K5/16 ,  C08K5/17 ,  C08K5/19 ,  C08K5/31 ,  C08K5/36 ,  C08K5/37 ,  C08K5/40 ,  C08K5/43 ,  C08K5/45 ,  C08K5/47 ,  C08L21/00

    CPC分类号： C08K5/19

    摘要： The present invention relates to a cure system for a sulfur vulcanizable rubber. The cure system comprises:(a) from about 0.50 to about 2.0 phr of a sulfenamide accelerator selected from the group consisting of N-oxydiethylene benzothiazole-2 sulfenamide, N-cyclohexyl-2-benzothiazole sulfenamide, N-t-butyl-2-benzothiazole sulfenamide and N-oxydiethylene-thiocarbamyl-N'-oxydiethylene sulfenamide;(b) from about 0.10 to about 1.0 phr of a guanidine accelerator selected from the group consisting of diphenyl guanidine and di-ortho-tolylguanidine;(c) from about 0.10 to about 1.0 phr of a thiuram accelerator selected from the group consisting of tetraethyl thiuramdisulfide, tetramethyl thiuram monosulfide, tetramethyl thiuramdisulfide;(d) from about 0.05 to about 1.0 phr of mercapto benzothiazyl disulfide;(e) from about 0.75 to about 3.0 phr of a sulfur vulcanizing agent;(f) from about 0.05 to about 0.50 phr of N-cyclohexylthio-phthalimide;(g) from about 1.0 to about 5.0 phr of a zinc compound selected from the group consisting of zinc oxide and zinc stearate and;(h) from about 0.05 to about 1.0 phr of an activator of the formula: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are independently alkyl radicals having 8 to 10 carbon atoms and M is selected from the group consisting of Cl, Br, CH.sub.3 SO.sub.4 and HSO.sub.4.

    Tire tread rubber compositions
    86.
    发明授权
    Tire tread rubber compositions 失效
    轮胎胎面橡胶组合物

    公开(公告)号：US4791173A

    公开(公告)日：1988-12-13

    申请号：US74826

    申请日：1987-07-17

    申请人： Robert W. Layer

    发明人： Robert W. Layer

    IPC分类号： B60C1/00 ,  C08K5/44 ,  C08K5/47 ,  C08C19/20

    CPC分类号： C08K5/44 ,  B60C1/0016 ,  C08K5/47

    摘要： A synthetic rubber (SR) tire tread of styrene-butadiene rubber (SBR) and butyl rubber which SR is essentially free of natural rubber (NR), upon vulcanization with sulfur in the presence of a combination of sulfenamide accelerators, provides excellent oxidative stability, resistance to hardening, and flex resistance, despite increasing the level of sulfur to an amount in the range from 2.0-3.0 phr, as long as the total amount of sulfenamide accelerators is less than 2.0 phr and there is more TCS than BTS. The crosslink network generated by the use of TCS in combination with BTS, which combination produces poor oxidation stability in a predominantly NR containing rubber, is not produced in SR.

    摘要翻译： 苯乙烯 - 丁二烯橡胶（SBR）的合成橡胶（SR）轮胎胎面和SR基本上不含天然橡胶（NR）的丁基橡胶，在亚磺酰胺加速剂的组合硫化硫时，提供优异的氧化稳定性， 只要总亚硫烯酰胺加速剂的总量小于2.0phr，并且比BTS更多的TCS，尽管将硫的含量提高到2.0-3.0phr的范围内，但耐硬化性和耐挠曲性。 通过使用TCS与BTS组合产生的交联网络，其在主要含有NR的橡胶中产生差的氧化稳定性，在SR中不产生。

    Tire containing improved liner
    88.
    发明授权
    Tire containing improved liner 失效
    轮胎含有改进的内胆

    公开(公告)号：US4616686A

    公开(公告)日：1986-10-14

    申请号：US818423

    申请日：1986-01-13

    申请人： Dominic A. Berta

    发明人： Dominic A. Berta

    IPC分类号： B60C1/00 ,  B60C5/14 ,  B60C13/00 ,  C08F8/34 ,  C08J3/24 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K5/37 ,  C08K5/38 ,  C08K5/40 ,  C08K5/43 ,  C08K5/44 ,  C08K5/45 ,  C08K5/47 ,  C08K13/02 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L23/22 ,  C08L23/26 ,  C08L23/28 ,  C08L27/00 ,  C08L71/00 ,  C08L71/02 ,  C08L71/03 ,  C08L101/00

    CPC分类号： C08L23/283 ,  C08L71/03

    摘要： Disclosed are crosslinking compositions having both sulfur and nonsulfur curative systems which are particularly adapted for crosslinking rubber blends of (a) from about 35% to about 85% halobutyl rubber or a mixture of butyl rubber and halobutyl rubber wherein the halobutyl rubber is at least 50% by weight of the mixture and (b) from about 15% to about 65% of an epihalohydrin rubber, and the rubber materials crosslinked therewith. The rubber materials crosslinked with these crosslinking compositions have an excellent balance of cure rate, cure state and scorch safety; have improved tire carcass adhesion and good impermeability to gases; and are useful in tire inner tubes and inner liners.

    摘要翻译： 公开了具有硫和非硫硫化物系统的交联组合物，其特别适用于交联（a）约35％至约85％卤代丁基橡胶或丁基橡胶和卤代丁基橡胶的混合物的橡胶共混物，其中卤代丁基橡胶为至少50 重量比的混合物和（b）约15％至约65％的表卤代醇橡胶，以及与其交联的橡胶材料。 用这些交联组合物交联的橡胶材料具有优异的固化速率，固化状态和焦烧安全性的平衡; 轮胎胎体附着力提高，气体渗透性好; 并且在轮胎内管和内衬中是有用的。

    Agricultural process using controllably degradable polymer composition film
    89.
    发明授权
    Agricultural process using controllably degradable polymer composition film 失效
    农业工艺采用可控降解聚合物组合物膜

    公开(公告)号：US4519161A

    公开(公告)日：1985-05-28

    申请号：US593528

    申请日：1984-03-26

    申请人： Dan Gilead ,  Gerald Scott

    发明人： Dan Gilead ,  Gerald Scott

    IPC分类号： A01G13/02 ,  C08K5/00 ,  A01G1/00 ,  C08K5/47

    CPC分类号： A01G13/0275 ,  C08K5/0033

    摘要： The invention relates to controllably degradable polymer compositions, especially suitable for making film products, comprising a vinyl polymer, and at least one first complex which is a non-ionic organosoluble antioxidant complex of a chain-breaking, peroxide-decomposing, metal ion deactivating or ultraviolet light stabilizing compound and of a metal such that the metal complex is a photoactivator and at least one second complex which is a non-ionic organosoluble ultraviolet light stabilizing complex of a metal such that the metal complex is a photostabilizer, the concentrations of the two complexes being co-ordinated to produce a desired embrittlement time for the composition.The first complex is an iron complex and the second a nickel complex or a cobalt complex.

    摘要翻译： 本发明涉及可控制地降解的聚合物组合物，特别适用于制备包含乙烯基聚合物的薄膜产品，以及至少一种第一配合物，其是断裂的，过氧化物分解的，金属离子失活的非离子有机溶剂抗氧化剂复合物 紫外光稳定化合物和金属，使得金属络合物是光活化剂和至少一种第二配合物，其是金属的非离子有机溶剂紫外光稳定复合物，使得金属络合物是光稳定剂，两者的浓度 配合物被配合以产生组合物所需的脆化时间。 第一个复合物是铁络合物，第二个复合物是镍络合物或钴络合物。