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    • 31. 发明申请
    • SYNTHESIS OF SOLUBLE FUNCTIONALIZED LITHIUM INITIATORS
    • 可溶性功能锂离子发射体的合成
    • US20100108230A1
    • 2010-05-06
    • US12686768
    • 2010-01-13
    • Adel Farhan HalasaWen-Liang Hsu
    • Adel Farhan HalasaWen-Liang Hsu
    • B60C1/00
    • B60C1/0016C07F1/005C07F1/02C08C19/44C08F36/04C08F4/488
    • This invention discloses a process for making dilithium initiators in high purity. This process can be conducted in the absence of amines which is desirable since amines can act as modifiers for anionic polymerizations. The dilithium compounds made are highly desirable because they are soluble in aromatic solvents. The present invention also discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is a cured the rubber formulation which is comprised of (a) at least one rubbery polymer containing functional groups of the structural formula: wherein R, R′ and R″ can be the same or different, wherein R is selected from the group consisting of hydrogen atoms, alkyl groups, aryl groups, alkaryl groups, and amino aryl groups, and wherein R′ and R″ represent alkyl groups alkyl groups that contain from 1 to 8 carbon atoms, and (b) at least one member selected from the group consisting of carbon black and silica.
    • 本发明公开了一种制备高纯度二锂引发剂的方法。 该方法可以在不存在胺的情况下进行,因为胺可以用作阴离子聚合的改性剂。 所制备的二锂化合物是非常需要的,因为它们可溶于芳族溶剂。 本发明还公开了一种轮胎,其包括具有外圆周胎面的大致环形胎体,两个间隔开的胎圈,从胎圈到胎圈延伸的至少一个帘布层和从所述胎面径向延伸并将所述胎面连接到所述胎圈的侧壁,其中 所述胎面适于与地面接触,并且其中所述胎面是固化的橡胶配方,其由(a)至少一种含有以下结构式的官能团的橡胶状聚合物组成:其中R,R'和R“可以是 相同或不同,其中R选自氢原子,烷基,芳基,烷芳基和氨基芳基,其中R'和R“表示含有1至8个碳的烷基基团 原子,和(b)选自碳黑和二氧化硅中的至少一种。
    • 33. 发明授权
    • Method of making alkoxy functionalized rubbery polymers
    • 制备烷氧基官能化橡胶聚合物的方法
    • US07335706B1
    • 2008-02-26
    • US11682050
    • 2007-03-05
    • Adel Farhan HalasaWen-Liang HsuScott K. Armstrong
    • Adel Farhan HalasaWen-Liang HsuScott K. Armstrong
    • C08F8/40C08F8/18C08F4/48
    • C08F4/48B60C1/0016C08C19/44C08F36/02C08F4/565
    • The present invention is directed to a method for synthesizing rubbery copolymers, such as styrene-butadiene rubber, or rubbery homopolymers, such as polybutadiene rubber, that are alkoxy functionalized, e.g., alkoxysilane functionalized, and provide desirable dispersion of silica in rubber compounds, such as for use in tire treads. To that end, the method, in one embodiment, involves admixing anionically polymerizable conjugated diene monomers with optional vinyl aromatic, an anionic-polymerization initiator, i.e., an organolithium compound, and a lithium alkoxide to form an admixture of living polymers, then adding a halogenated coupling agent to the admixture of living polymers effecting conditions to form an alkoxy functionalized rubbery polymer. The alkoxy functionalized rubbery polymers can be utilized in tire tread rubbers where the rubbery polymers may provide desirable wear properties without substantially sacrificing other performance characteristic(s), e.g., traction properties.
    • 本发明涉及一种用于合成橡胶状共聚物的方法,例如苯乙烯 - 丁二烯橡胶或橡胶状均聚物,例如聚丁二烯橡胶,其为官能化的烷氧基官能化的橡胶状均聚物,例如官能化的烷氧基硅烷,并且在橡胶化合物中提供所需的二氧化硅分散体 用于轮胎胎面。 为此,在一个实施方案中,该方法涉及将阴离子聚合的共轭二烯单体与任选的乙烯基芳族化合物,阴离子聚合引发剂,即有机锂化合物和醇锂混合物混合以形成活性聚合物的混合物,然后加入 卤化偶联剂与活性聚合物的混合物影响形成烷氧基官能化橡胶状聚合物的条件。 烷氧基官能化橡胶状聚合物可用于轮胎胎面橡胶中,其中橡胶状聚合物可提供所需的耐磨性,而基本上不会牺牲其它性能特征,例如牵引性能。
    • 36. 发明授权
    • Process for making light weight rubber composition containing clay
    • 制造含有粘土的轻质橡胶组合物的方法
    • US06884835B2
    • 2005-04-26
    • US10783135
    • 2004-02-20
    • Manoj AjbaniWen-Liang HsuAdel Farhan HalasaGinger LeeEric Sean Castner
    • Manoj AjbaniWen-Liang HsuAdel Farhan HalasaGinger LeeEric Sean Castner
    • B60C1/00C08K3/04C08K3/34C08K5/54C08K7/00C08K9/04C08L21/00C08K3/36
    • C08K3/346C08K9/04Y10S152/905C08L19/006
    • This invention relates to a process for making a vulcanized rubber article comprising the steps of (1) kneading at a temperature within the range of about 70° C. to about 190° C. in a bulk thermomechanical mixer (a) an amino group containing rubbery polymer, wherein said amino group containing rubbery polymer contains from about 0.1 weight percent to about 20 weight percent monomer units containing an amino group, (b) from 0.1 to about 25 phr of an organophilic 2:1 layered silicate clay selected from the group consisting of montmorillonite clays, bentonite clays, hectorite clays, saponite clays, nontronite clays, beidellite clays, fluorohectorite clays, stevensite clays, volkonskoite clays, sauconite clays, and laponite clays, and (c) at least one conventional rubber compounding ingredient selected from the group consisting of curing agents, cure accelerators, cure activators, processing aids, reinforcing fillers, oils, cure retarders, resins, and antidegradants, to produce a mixed compound; (2) discharging the said mixed compound from the bulk thermomechanical mixer; (3) forming the mixed compound into an article; and (4) vulcanizing the article.
    • 本发明涉及一种硫化橡胶制品的制造方法,其包括以下步骤:(1)在体积热机械混合器(a)中在约70℃至约190℃的温度范围内捏合含氨基 橡胶质聚合物,其中所述含氨基的橡胶状聚合物含有约0.1重量%至约20重量%的含氨基的单体单元,(b)0.1至约25phr的有机亲水性2:1层状硅酸盐粘土,其选自 由蒙脱石粘土,膨润土,锂蒙脱石粘土,皂石粘土,白云石粘土,白垩纪粘土,氟代锂蒙脱石粘土,滑石岩粘土,膨润土粘土,松香石粘土和锂皂石粘土组成,和(c)至少一种常规的橡胶配混成分, 由固化剂,固化促进剂,固化活化剂,加工助剂,增强填料,油,固化缓凝剂,树脂和抗降解剂组成的组,以产生混合c ; (2)从本体热机械混合器排出所述混合化合物; (3)将混合的化合物形成制品; 和(4)硫化该制品。
    • 37. 发明授权
    • Process for synthesizing trans-1,4-polybutadiene
    • 合成反式-1,4-聚丁二烯的方法
    • US06670435B2
    • 2003-12-30
    • US10308253
    • 2002-12-02
    • Wen-Liang HsuAdel Farhan Halasa
    • Wen-Liang HsuAdel Farhan Halasa
    • C08F446
    • C08F136/06C08F4/50C08F4/48
    • The process and catalyst system of this invention can be utilized to synthesize polybutadiene rubber having a high trans content and a low melting point by solution polymerization. The trans-polybutadiene rubber made by the process of this invention can be utilized in tire tread rubbers that exhibit outstanding wear characteristics. More importantly, the trans-polybutadiene rubber of this invention can be easily processed because of its low level of crystallinity. In fact, the trans-polybutadiene made by the process of this invention does not need to be heated in a “hot-house” before being used in making rubber compounds. This invention more specifically reveals a process for synthesizing trans-polybutadiene rubber which comprises polymerizing 1,3-butadiene in an organic solvent in the presence of a catalyst system which comprises (a) an organolithium compound, (b) a barium compound selected from the group consisting of (i) barium salts of cyclic alcohols, such as barium mentholate, and (ii) barium thymol, and (c) an organoaluminum compound. The trans-polybutadiene made with the catalyst system of this invention typically has a glass transition temperature that is within the range of about −97° C. to about −90° C., a melting point that is within the range of about −30° C. to about 30° C., and a number average molecular weight that is within the range of about 50,000 to about 200,000.
    • 本发明的方法和催化剂体系可用于通过溶液聚合合成具有高反式含量和低熔点的聚丁二烯橡胶。 通过本发明方法制备的反式聚丁二烯橡胶可以用于表现出优异的磨损特性的轮胎胎面橡胶。 更重要的是,本发明的反式聚丁二烯橡胶由于其低结晶度而易于加工。 事实上,本发明方法制造的反式聚丁二烯在用于制造橡胶化合物之前不需要在“热房”中加热。 本发明更具体地揭示了一种合成反式聚丁二烯橡胶的方法,该方法包括在催化剂体系存在下在有机溶剂中聚合1,3-丁二烯,所述催化剂体系包含(a)有机锂化合物,(b)选自 包括(i)环状醇的钡盐,例如薄荷醇钡,和(ii)钡百里酚,和(c)有机铝化合物。 用本发明的催化剂体系制备的反式聚丁二烯通常具有在约-97℃至约-90℃范围内的玻璃化转变温度,熔点在约-30℃ 约30℃,数均分子量在约50,000至约200,000的范围内。
    • 39. 发明授权
    • Asymmetrical tin-coupled rubbery polymers
    • 不对称锡偶联橡胶聚合物
    • US06420484B1
    • 2002-07-16
    • US09968464
    • 2001-10-01
    • Wen-Liang HsuAdel Farhan HalasaBarry Allen Matrana
    • Wen-Liang HsuAdel Farhan HalasaBarry Allen Matrana
    • C08F842
    • C08C19/44
    • Tire rubbers which are prepared by anionic polymerization are frequently coupled with a suitable coupling agent, such as a tin halide, to improve desired properties. It has been unexpectedly found that greatly improved properties for tire rubbers, such as lower hysteresis, can be attained by asymmetrically coupling the rubber. This invention more specifically discloses an asymmetrical tin-coupled rubbery polymer which is particularly valuable for use in manufacturing tire tread compounds, said asymmetrical tin-coupled rubbery polymer being comprised of a tin atom having at least three polydiene arms covalently bonded thereto, wherein said polydiene arms have a weight average molecular weight which is within the range of about 80,000 to about 300,000, wherein the polydiene arms do not contain blocks of more than about 4 repeat units of vinyl aromatic monomers, and wherein the ratio of the weight average molecular weight to the number average molecular weight of the asymmetrical tin-coupled rubbery polymer is within the range of about 1.4 to about 2.0.
    • 通过阴离子聚合制备的轮胎橡胶通常与合适的偶合剂如卤化锡偶联,以改善所需的性能。 已经意外地发现,通过不对称地连接橡胶,可以获得轮胎橡胶的较大改善的性能,例如较低的滞后。 本发明更具体地公开了一种非对称锡 - 偶联橡胶状聚合物,其特别有价值地用于制造轮胎胎面胶料,所述不对称锡 - 偶联橡胶状聚合物由具有共价键合至少三个聚二烯臂的锡原子组成,其中所述聚二烯 臂的重均分子量在约80,000至约300,000的范围内,其中聚二烯臂不含有大于约4个重复单元的乙烯基芳族单体的嵌段,并且其中重均分子量与 不对称锡偶联橡胶状聚合物的数均分子量在约1.4至约2.0的范围内。