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公开(公告)号：US4829117A
公开(公告)日：1989-05-09
申请号：US65240
申请日：1987-06-22
CPC分类号： C08J3/2053 , C08K5/005 , C08K5/13 , C08K9/12 , C08J2307/00 , Y10S528/93
摘要： A stabilizing composition and process for guayule type rubbers which can be directly applied to guayule-type plants or shrubs before processing thereof, or to guayule-type rubber miscella, rubber-resin miscella, etc., contains a volatile low melting point antioxidant which is either liquid or solid and an optional liquid inert carrier which lowers the melting point of the antioxidant. Since antioxidants are generally expensive, recovery thereof as by distillation is aided through the utilization of low boiling point antioxidants.
摘要翻译： 可以在加工前直接施用于瓜耳类植物或灌木的花岗蛋白型橡胶的稳定化组合物和方法，或花岗质型橡胶树脂，橡胶树脂miscella等含有挥发性低熔点抗氧化剂，其为 液体或固体以及可选的液体惰性载体，降低抗氧化剂的熔点。 由于抗氧化剂通常是昂贵的，因此通过利用低沸点抗氧化剂来辅助通过蒸馏的回收。
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公开(公告)号：US4623713A
公开(公告)日：1986-11-18
申请号：US754554
申请日：1985-07-15
申请人： Robert T. Beinor , William M. Cole
发明人： Robert T. Beinor , William M. Cole
CPC分类号： C08C2/00 , Y10S528/933
摘要： A method and composition are disclosed wherein guayule rubber is fractionated into desirable weight average molecular weight fractions by a desired solvent system. Oftentime, a plurality of fractionating steps is utilized wherein the desirable molecular weight rubber fraction is precipitated or extracted. High weight average molecular weight rubbers having usually less than 4% by weight of resin content therein are generally desirable because of their favorable physical properties.
摘要翻译： 公开了一种方法和组合物，其中通过所需溶剂系统将瓜耳胶橡胶分级成所需的重均分子量级分。 通常，使用多个分馏步骤，其中所需的分子量橡胶级分沉淀或萃取。 通常由于其有利的物理性质，通常期望具有通常小于4重量％的树脂含量的高重均分子量橡胶。
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公开(公告)号：US07442748B2
公开(公告)日：2008-10-28
申请号：US11069679
申请日：2005-03-01
申请人： William M. Cole , David M. Roggeman
发明人： William M. Cole , David M. Roggeman
IPC分类号： C08F2/00
CPC分类号： C08F10/00 , B01F5/061 , B01F7/00816 , B01F2005/0637 , B01J8/10 , B01J8/20 , B01J19/18 , B01J19/1806 , B01J2208/00557 , B01J2219/00033 , C08F2/01 , C08F36/04 , C08F4/48
摘要： A process for the continuous polymerization of monomer, the process comprising (a) adding monomer and catalyst to an annulus within an annular reactor to form a polymerization medium within the annulus, where the annulus includes the space between an outer casing wall and an inner tubular wall, (b) allowing the polymerization medium a sufficient residence time within the annulus to provide a living polymer product, and (c) removing the polymer product from the annulus.
摘要翻译： 一种用于单体连续聚合的方法，该方法包括（a）将单体和催化剂加入到环形反应器内的环形空间中以在环形空间内形成聚合介质，其中环形空间包括外套管壁和内管 壁，（b）允许聚合介质在环形空间内具有足够的停留时间以提供活性聚合物产物，和（c）从环空中除去聚合物产物。
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公开(公告)号：US06384117B1
公开(公告)日：2002-05-07
申请号：US09203438
申请日：1998-12-01
IPC分类号： C08C524
CPC分类号： C08K5/5419 , B60C1/0016 , C08K3/36 , C08K5/0008 , C08K5/103 , C08K5/151 , C08K5/1535 , C08K9/12 , Y10T152/10855 , C08L21/00
摘要： The present invention provides silica-filled, vulcanized elastomeric compounds comprising an elastomer mixed with at least a silica filler, a processing aid, and a curing agent, and processes for the preparation of the same. Generally, the present invention provides processing aids which effectively reduce or replace the amount (i.e., about 10 percent by weight based upon the silica filler) of the processing aid bis[3-triethyoxysilyl)propyl]tetrasulfide (“Si69”) used in the production of silica-filled rubber stocks. These new processing aids include alkyl alkoxysilanes, fatty acid esters of hydrogenated and non-hydrogenated sugars and the polyoxyethylene derivatives thereof, and combinations thereof, with or without various non-reinforcing fillers such as mineral fillers. The processing aids do not hinder the physical properties of the compounds and have been found to be excellent substitutes for Si69. The processing aids may be supported on the silica filler or any of the other fillers employed in the composition for improved handling, safety and performance. Processes for the preparation of the silica filled vulcanizable elastomers are provided as well as pneumatic tires employing tread stock comprising the novel vulcanizable elastomers.
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公开(公告)号：US06221943B1
公开(公告)日：2001-04-24
申请号：US08893864
申请日：1997-07-11
IPC分类号： C08L524
CPC分类号： C08K5/1535 , B60C1/0016 , C08K3/36 , C08K5/103 , C08K5/5419 , Y10T152/10855 , C08L21/00
摘要： A processable rubber stock is produced by the preparation of a silica-filled, vulcanized elastomeric compound comprising mixing an elastomer with an amorphous silica filler, from 0 to less than about 1% by weight based on said silica filler of bis[3-(triethoxysily)propyl]tetrasulfide, an alkylalkoxysilane and a cure agent. A further processing aid comprising at least one of an ester of a fatty acid or an ester of a polyol is preferred. The elastomer is preferably a diene monomer homopolymer or a copolymer of at least one diene and at least one monovinyl aromatic monomer. By effecting vulcanization, a vulcanized elastomeric compound is produced containing good physical properties for use as tread stock for a pneumatic tire.
摘要翻译： 通过制备二氧化硅填充的硫化弹性体化合物制备可加工的橡胶原料，其包括将弹性体与无定形二氧化硅填料混合，基于所述双[3-（三乙氧基硅烷基） ）丙基]四硫化物，烷基烷氧基硅烷和固化剂。 优选包含脂肪酸的酯或多元醇的酯中的至少一种的另外的加工助剂。 弹性体优选为二烯单体均聚物或至少一种二烯与至少一种单乙烯基芳族单体的共聚物。 通过进行硫化，产生含有用于充气轮胎的胎面胶料的良好物理性能的硫化弹性体化合物。
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公开(公告)号：US4129529A
公开(公告)日：1978-12-12
申请号：US824004
申请日：1977-08-12
CPC分类号： C08G79/025
摘要： The production of phosphazene polymers represented by the general formula ##STR1## WHEREIN N IS AN INTEGER FROM 7 TO UPWARDS OF 50,000 WHEREIN ONE OR MORE KINDS OF OR or OR' groups is attached to the phosphorus atoms in a substantially linear chain of alternating P and N atoms, the groups when more than one group is present being randomly distributed along the PN backbone, is enhanced by employing a single solvent for both each of the reactants (polydihalophosphazene and either aryloxide and/or alkoxide) and for the product (phosphazene polymer). By this expedient, the formation of the desired product is achieved in a homogeneous system rather than in a heterogeneous system as in the prior art where different solvents were employed for each of the reactants and for the reaction products.
摘要翻译： {PG，1}由通式{r1 {tc，1 {rb {ab，44 {m，1 {sb，21 {us，5 {ob，4 {mr，1P {M， 1 {AB，2 OR {MR，1 {AB，6 OR {40 {MR，1 {AD，44 N {AB，44 {SB，21 {US，5 {CB，4 {S，6 { {HD {{{{{{{{{{N {N} N = 1，从7到UPWARDS为50,000，其中一种或多种OR或OR {40 {0组连接在交替的P和N的基本线性链中的磷原子 原子，当存在多于一个基团时的基团通过使用单一溶剂用于每种反应物（聚二卤代膦和芳氧化物和/或醇盐）和对于产物（磷腈聚合物）而增强， 。 通过这种方法，所需产物的形成在均匀系统中而不是在异构体系中实现，如在现有技术中，其中对于每种反应物和反应产物使用不同的溶剂。
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公开(公告)号：US07687589B2
公开(公告)日：2010-03-30
申请号：US11893121
申请日：2007-08-14
摘要： A method for the continuous production of polydienes, the method comprising the steps of (a) charging a mixture of one or more monomer, catalyst system, and less than 50% weight percent organic solvent based on the total weight of the monomer, catalyst and solvent, into first vessel, (b) polymerizing the monomer to a conversion of up to 20% by weight of the monomer to form a mixture of reactive polymer and monomer, (c) removing the mixture of reactive polymer and monomer from the vessel, and (d) terminating the reactive polymer prior to a total monomer conversion of 25% by weight.
摘要翻译： 一种连续生产聚二烯的方法，所述方法包括以下步骤：（a）将单体，催化剂体系和小于50％重量百分比的有机溶剂的混合物以单体，催化剂和 溶剂进入第一容器，（b）将单体聚合至高达单体重量的20％的转化率以形成反应性聚合物和单体的混合物，（c）从容器中除去反应性聚合物和单体的混合物， 和（d）在总单体转化率为25重量％之前终止反应性聚合物。
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公开(公告)号：US07094849B2
公开(公告)日：2006-08-22
申请号：US10737591
申请日：2003-12-15
申请人： Steven Luo , William M. Cole , Yoichi Ozawa
发明人： Steven Luo , William M. Cole , Yoichi Ozawa
IPC分类号： C08F4/05
摘要： A method of producing cis-1,4-polydienes, the method comprising the step of contacting conjugated diene monomer with a lanthanide-based catalyst system in the presence of less than 20% by weight of organic solvent based on the total weight of monomer, organic solvent, and resulting polymer, where the lanthanide-based catalyst system is the combination of or reaction product of (a) a lanthanide compound, (b) an organoaluminum hydride, (c) a trihydrocarbylaluminum, and (d) a halogen-containing compound.
摘要翻译： 一种制备顺式-1,4-聚二烯的方法，该方法包括在少于20重量％的有机溶剂存在下，以单体总重量计，使共轭二烯单体与镧系元素基催化剂体系接触的步骤， 有机溶剂和所得聚合物，其中镧系元素基催化剂体系是（a）镧系元素化合物，（b）有机铝氢化物，（c）三烃基铝和（d）含卤素的化合物的组合或反应产物 复合。
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公开(公告)号：US06348531B1
公开(公告)日：2002-02-19
申请号：US09724130
申请日：2000-11-28
IPC分类号： C08K510
CPC分类号： C08K5/1535 , B60C1/0016 , C08K3/36 , C08K5/103 , C08K5/5419 , Y10T152/10855 , C08L21/00
摘要： A processable rubber stock is produced by the preparation of a silica-filled, vulcanized elastomeric compound comprising mixing an elastomer with an amorphous silica filler, from 0 to less than about 1% by weight based on said silica filter of bis[3-triethoxysilyl)propyl]tetrasulfide, an alkylalkoxysilane and a cure agent. A further processing aid comprising at least one of an ester of a fatty acid or an ester of a polyol is preferred. The elastomer is preferably a diene monomer homopolymer or a copolymer of at least one diene and at least one monovinyl aromatic monomer. By effecting vulcanization, a vulcanized elastomeric compound is produced containing good physical properties for use as tread stock for a pneumatic tire.
摘要翻译： 通过制备二氧化硅填充的硫化弹性体化合物制备可加工的橡胶原料，其包括将弹性体与无定形二氧化硅填料混合，基于所述双[3-三乙氧基甲硅烷基）二氧化硅过滤器为0至小于约1重量％ 丙基]四硫化物，烷基烷氧基硅烷和固化剂。 优选包含脂肪酸的酯或多元醇的酯中的至少一种的另外的加工助剂。 弹性体优选为二烯单体均聚物或至少一种二烯与至少一种单乙烯基芳族单体的共聚物。 通过进行硫化，产生含有用于充气轮胎的胎面胶料的良好物理性能的硫化弹性体化合物。
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10.发明授权Anionic polymerization initiators for preparing macro-branched diene rubbers 有权用于制备大分子量二烯橡胶的阴离子聚合引发剂公开(公告)号：US06271314B1
公开(公告)日：2001-08-07
申请号：US09569253
申请日：2000-05-11
IPC分类号： C08F29702
CPC分类号： C08F36/04 , B60C1/00 , C08F4/027 , C08F4/46 , Y10T152/10
摘要： Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.
摘要翻译： 提供和使用与IA族碱金属原子多金属化的新型固体负载型阴离子聚合引发剂，用于生产极高分子量支链二烯聚合物。 引发剂通过在极性配位体的存在下金属化包含热塑性聚合物或固化的弹性体的颗粒来制备。 通过使用引发剂的阴离子聚合获得的聚合物是多支化的，聚合物链几乎在每个金属化位点共价连接到颗粒上。 大分支聚合物显示出所需的性能，例如极高的分子量，受控的分子量分布，Tg和乙烯基含量，以及容易吸收烃溶剂和油的能力。 聚合物易于复合以形成具有优异的耐磨性和耐撕裂性并且具有降低的滞后性能的可硫化弹性体化合物和制品。
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