ABA triblock and diblock copolymers and methods of preparing the same
    52.
    发明授权
    ABA triblock and diblock copolymers and methods of preparing the same 有权
    ABA三嵌段和二嵌段共聚物及其制备方法

    公开(公告)号:US06410666B1

    公开(公告)日:2002-06-25

    申请号:US09527757

    申请日:2000-03-17

    IPC分类号: C08F444

    摘要: The invention discloses a method for preparing a tri block copolymer of the formula: comprising: (a) contacting a cycloalkene with a chain transfer agent of the formula: Z—Y═Y—Z  in the presence of a metal carbene metathesis catalyst to form a telechelic polymer; and (d) contacting the telechelic polymer with an alkene of the formula  in the presence of an ATRP organometallic catalyst wherein n and m are integers; Z is an ATRP initiator and —Y═Y— is an alkenyl group; and, R′ is selected from the group consisting of aryl, nitrile and C1-C20 carboxylate, wherein R′ is substituted or unsubstituted. The invention also discloses a method for preparing a diblock copolymer. In addition, the invention encompasses a triblock copolymer having no 1,2-PBD structure in the PBD portion of the copolymer.

    摘要翻译: 本发明公开了一种制备下式的三嵌段共聚物的方法:包括:(a)使环烯与下式的链转移剂接触:在金属卡宾复分解催化剂的存在下形成遥爪聚合物; 和(d)在ATRP有机金属催化剂存在下使遥爪聚合物与下式的烯烃接触,其中n和m是整数; Z是ATRP引发剂,-Y = Y-是链烯基; 和R'选自芳基,腈和C 1 -C 20羧酸酯,其中R'是取代或未取代的。 本发明还公开了二嵌段共聚物的制备方法。 此外,本发明包括在共聚物的PBD部分中不具有1,2--PBD结构的三嵌段共聚物。

    Cycloolefin polymers
    53.
    发明授权
    Cycloolefin polymers 失效
    环烯烃聚合物

    公开(公告)号:US5856414A

    公开(公告)日:1999-01-05

    申请号:US932300

    申请日:1997-09-17

    摘要: The present invention relates to a cycloolefin polymer having a solution viscosity >0.25 dl/g and containing polymerized units of at least one cycloolefin and, if desired, polymerized units of one or more acyclic olefins, wherein the cycloolefin polymer has at one or both ends an olefinically unsaturated group having at least 3 carbon atoms.

    摘要翻译: 本发明涉及一种具有溶液粘度> 0.25dl / g的环烯烃聚合物,并且含有至少一种环烯烃的聚合单元和如果需要的话,一种或多种无环烯烃的聚合单元,其中环烯烃聚合物在一端或两端 具有至少3个碳原子的烯属不饱和基团。

    Multistage process for the (CO) polymerization of olefins
    54.
    发明授权
    Multistage process for the (CO) polymerization of olefins 失效
    烯烃(CO)聚合的多步法

    公开(公告)号:US5589549A

    公开(公告)日:1996-12-31

    申请号:US461136

    申请日:1995-06-05

    摘要: Multistage process for the polymerization of olefins CH.sub.2 .dbd.CHR, where R is hydrogen or an alkyl, cycloalkyl or aryl radical with 1-10 carbon atoms, comprising two stages of polymerization. In a first stage, in the presence of a titanium or a vanadium catalyst and working in one or more reactors, an olefinic polymer with particular values of porosity is prepared; in a second stage, in the presence of the said porous polymer and a metallocene compound and/or their reaction products, one or more olefins, that are equal to or different from those polymerized in the first stage, are polymerized in one or more reactors.

    摘要翻译: 用于烯烃CH 2 = CHR聚合的多阶段方法,其中R是氢或具有1-10个碳原子的烷基,环烷基或芳基,包括两个阶段的聚合。 在第一阶段中,在钛或钒催化剂的存在下并在一个或多个反应器中加工,制备具有特定孔隙率的烯属聚合物; 在第二阶段中,在所述多孔聚合物和茂金属化合物和/或其反应产物的存在下,与在第一阶段聚合的那些相同或不同的一种或多种烯烃在一个或多个反应器 。

    Prepolymerization process for producing a conjugated diene compound
prepolymer solution
    55.
    发明授权
    Prepolymerization process for producing a conjugated diene compound prepolymer solution 失效
    用于生产共轭二烯化合物预聚物溶液的预聚方法

    公开(公告)号:US5096970A

    公开(公告)日:1992-03-17

    申请号:US577087

    申请日:1990-08-31

    摘要: A conjugated diene compound prepolymer solution useful for the production of a vinyl aromatic compound high impact polymer material is produced by a process in which a prepolymerization mixture is prepared from 1 to 70 parts by weight of a conjugated diene compound and 30 to 99 parts by weight of a vinyl aromatic compound, and is prepolymerized at 0.degree. C. to 150.degree. C. in the presence of a prepolymerization catalyst which can cause the conjugated diene compound to be selectively polymerized but is substantially not effective for the polymerization of the vinyl aromatic compound to an extent such that the conjugated diene compound and the vinyl aromatic compound are prepolymerized at degrees of conversion of the conjugated diene compound at least 50% and 10% or less, respectively, and the resultant prepolymer solution is further polymerized by a radical or anionic polymerization method so that the vinyl aromatic compound is polymerized with the conjugated diene compound prepolymer.

    Process for producing polybutadiene rubber with enhanced mechanical
strength
    56.
    发明授权
    Process for producing polybutadiene rubber with enhanced mechanical strength 失效
    具有增强机械强度的生产聚丁二烯橡胶的方法

    公开(公告)号:US4476287A

    公开(公告)日:1984-10-09

    申请号:US448232

    申请日:1982-12-09

    CPC分类号: C08F295/00 C08F136/06

    摘要: A polybutadiene rubber having an enhanced mechanical strength is produced in such a manner that the content of water in a solution of 1,3-butadiene in an inert organic solvent is controlled to 0.2 to 5 millemoles per liter of 1,3-butadiene; a first polymerization mixture is prepared from the controlled 1,3-butadiene solution, an organic aluminum compound of the formula Al R.sub.n X.sub.3-n, wherein R=C.sub.1-6 alkyl, phenyl, or cycloalkyl, X=halogen, and n=1.5-2.0, and a cobalt compound, for example, by aging a mixture of the controlled 1,3-butadiene solution with the aluminum compound for at least one minute and then by admixing the aged mixture with the cobalt compound; the first polymerization mixture is subjected to a cis-1,4-polymerization; a second polymerization comprising the resultant cis-1,4-polybutadiene, non-reacted 1,3-butadiene, the inert organic solvent, and a catalyst comprising an organic aluminum compound of the formula AlR.sub.3, a cobalt compound, and carbon disulfide is subjected to a 1,2-polymerization to produce a polybutadiene rubber consisting essentially of 5% to 30% by weight of a boiling n-hexane-insoluble fraction and 70% to 95% by weight of a boiling n-hexane-soluble fraction thereof and having an excellent mechanical strength; and after the 1,2-polymerization is shortstopped, the resultant polybutadiene rubber is isolated from the 1,2-polymerization mixture.

    摘要翻译: 制造具有增强的机械强度的聚丁二烯橡胶,使得1,3-丁二烯在惰性有机溶剂中的溶液中的水含量控制在每升1,3-丁二烯0.2至5毫摩尔; 由对照的1,3-丁二烯溶液制备第一聚合混合物,式为Al RnX 3-n的有机铝化合物,其中R = C 1-6烷基,苯基或环烷基,X =卤素,n = 1.5- 2.0和钴化合物,例如通过将受控1,3-丁二烯溶液与铝化合物的混合物老化至少1分钟,然后将老化的混合物与钴化合物混合; 将第一聚合混合物进行顺式-1,4-聚合; 包含所得顺式-1,4-聚丁二烯,未反应的1,3-丁二烯,惰性有机溶剂和包含式AlR 3的有机铝化合物,钴化合物和二硫化碳的催化剂的第二聚合物被 进行1,2-聚合以制备基本上由沸腾正己烷不溶部分的5重量%至30重量%的沸石正己烷不溶部分和70重量%至95重量%的沸腾的正己烷可溶部分组成的聚丁二烯橡胶, 具有优良的机械强度; 并且在1,2-聚合反应快速之后,从1,2-聚合混合物中分离得到的聚丁二烯橡胶。

    Process for producing block copolymers
    57.
    发明授权
    Process for producing block copolymers 失效
    制备嵌段共聚物的方法

    公开(公告)号:US4057600A

    公开(公告)日:1977-11-08

    申请号:US747937

    申请日:1976-12-06

    CPC分类号: C08F295/00

    摘要: Block copolymers are produced by (i) polymerizing ethylene or propylene, or copolymerizing the same with another .alpha.-olefin of 2 to 7 carbon atoms in the presence of a Ziegler-type catalyst, and (ii) copolymerizing the resulting polymer or copolymer with a radical-polymerizable vinyl compound (e.g., methyl methacrylate) in the presence of an organic sulfoxide.

    摘要翻译: 嵌段共聚物是通过在齐格勒型催化剂存在下,通过(ⅰ)聚合乙烯或丙烯或将其与另外的2-7个碳原子的α-烯烃进行聚合制备的,和(ⅱ)将所得聚合物或共聚物与 可自由基聚合的乙烯基化合物(如甲基丙烯酸甲酯)在有机亚砜存在下。

    Process for production of cross copolymers, cross copolymers obtained by the process, and use thereof
    60.
    发明授权
    Process for production of cross copolymers, cross copolymers obtained by the process, and use thereof 有权
    用于生产交联共聚物的方法,通过该方法获得的交联共聚物及其用途

    公开(公告)号:US08722831B2

    公开(公告)日:2014-05-13

    申请号:US12302818

    申请日:2007-05-29

    摘要: To provide a novel cross copolymer and resin composition which are improved in heat resistance and compatibility over conventional ethylene/aromatic vinyl compound copolymers and which have low crystallinity, are excellent in softness, transparency and compatibility and show mechanical properties similar to soft vinyl chloride resins, as compared with conventional cross copolymers.A process for producing a cross copolymer, which comprises a coordination polymerization step and a subsequent anionic polymerization step, wherein in the coordination polymerization step, copolymerization of an olefin monomer, an aromatic vinyl compound monomer and an aromatic polyene is carried out by using a single-site coordination polymerization catalyst to synthesize an olefin/aromatic vinyl compound/aromatic polyene copolymer, and then, in the anionic polymerization step, polymerization is carried out in the coexistence of such an olefin/aromatic vinyl compound/aromatic polyene copolymer and an anionic polymerizable vinyl compound monomer by using an anionic polymerization initiator.

    摘要翻译: 为了提供与常规乙烯/芳族乙烯基化合物共聚物相比耐热性和相容性提高并且结晶度低的新型交联共聚物和树脂组合物,其柔软性,透明性和相容性优异,并且具有类似于软氯乙烯树脂的机械性能, 与常规交联共聚物相比。 一种制备交联共聚物的方法,其包括配位聚合步骤和随后的阴离子聚合步骤,其中在配位聚合步骤中,烯烃单体,芳族乙烯基化合物单体和芳族多烯的共聚通过使用单 - 配位聚合催化剂合成烯烃/芳族乙烯基化合物/芳族多烯共聚物,然后在阴离子聚合步骤中,聚合是在这种烯烃/芳族乙烯基化合物/芳族多烯共聚物和阴离子可聚合的共聚物共存的情况下进行的 乙烯基化合物单体。