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    • 41. 发明授权
    • Thermoplastic compositions of interpolymers of ethylene with styrene
blended with poly vinyl chloride
    • US6136923A
    • 2000-10-24
    • US950983
    • 1997-10-15
    • Yunwa W. CheungMartin J. Guest
    • Yunwa W. CheungMartin J. Guest
    • C08J5/18C08L23/02C08L23/08C08L25/02C08L25/06C08L27/02C08L27/06C09D123/08C08K5/10C08K5/521C08L25/08
    • C08J5/18C08L23/0838C08L25/06C08L27/06C09D123/0838C08J2323/08C08L2314/06
    • The present invention relates to blend compositions comprising;(A) of from about 1 to about 99 weight percent based on the combined weights of Components A, B and C of at least one substantially random interpolymer; and wherein said interpolymer;(1) contains of from about 0.5 to about 65 mole percent of polymer units derived from;(a) at least one vinylidene aromatic monomer, or(b) at least one hindered aliphatic vinylidene monomer, or(c) a combination of at least one vinylidene aromatic monomer and at least one hindered aliphatic vinylidene monomer;(2) contains of from about 35 to about 99.5 mole percent of polymer units derived from at least one aliphatic .alpha.-olefin having from 2 to 20 carbon atoms;(3) has a molecular weight (Mn) greater than about 1,000;(4) has a melt index (I.sub.2) of from about 0.01 to about 1,000;(5) has a molecular weight distribution (M.sub.w /M.sub.n) of from about 1.5 to about 20; and(B) of from about 99 to about 1 weight percent based on the combined weights of Components A, B, and C of one or more vinyl halide homopolymer(s) or copolymer(s); and(C) of from about 0 to about 70 weight percent based on the combined weights of Components A, B, and C of one or more plasticizers. The novel blend compositions, provide materials with improved processing/property attributes over the unmodified polymers comprising the blends. The blend compositions can exhibit a unique balance of properties including enhanced modulus and barrier properties, improved tensile strength, radio frequency (rf) sealability, solvent bondability, thermal stability and heat resistance depending upon the selection of the individual blend components and their composition ratios. Additionally, the location and the breadth of the glass transition can be controlled by varying the blend composition and plasticizer level. Surprisingly blends including a plasticizer show a single phase material from glass transition temperature data analysis.
    • 42. 发明授权
    • Functionalized thermoplastic elastomer
    • 官能化热塑性弹性体
    • US6100337A
    • 2000-08-08
    • US80822
    • 1998-05-18
    • Bridget Ann SpenceRonald James HoxmeierRobert Charles Job
    • Bridget Ann SpenceRonald James HoxmeierRobert Charles Job
    • C08F255/00C08F255/02C08F255/08C08F283/12C08L27/22C08L25/02C08L25/18
    • C08F255/02C08F255/00C08F255/08C08F283/12
    • A thermoplastic elastomer produced without a hydrogenation step is functionalized utilizing a free radical initiator and a functionalizing monomer having at least one point of unsaturation. The base polymers can be produced by copolymerizing an .alpha.-olefin capable of producing an amorphous backbone with a comonomer which provides a "hook" for grafting to with a living polystyrene chain. Another method is to copolymerize an .alpha.-olefin monomer system capable of producing an amorphous backbone with a comonomer containing a functional group from which an anionically polymerizable monomer is grown from the backbone. A third method involves copolymerizing an .alpha.-olefin monomer system capable of giving an amorphous backbone with an olefin-terminated polystyrene comonomer. In a less preferred embodiment, a conventional EPDM polymer can be metallated and a monoalkenyl aromatic compound anionically polymerizable monomer grown from the backbone.
    • 使用自由基引发剂和具有至少一个不饱和键的官能化单体来使没有氢化步骤制备的热塑性弹性体功能化。 基础聚合物可以通过使能够制备无定形骨架的α-烯烃与共聚单体共聚来制备,所述共聚单体提供用于与活性聚苯乙烯链接枝的“钩”。 另一种方法是将能够产生无定形骨架的α-烯烃单体体系与含有阴离子可聚合单体从主链生长的官能团的共聚单体共聚。 第三种方法包括使能够产生无定形骨架的α-烯烃单体体系与烯烃封端的聚苯乙烯共聚单体共聚。 在较不优选的实施方案中,常规EPDM聚合物可以被金属化,并且由主链生长的单烯基芳族化合物阴离子可聚合单体。
    • 46. 发明授权
    • Thermoplastic molding materials
    • 热塑性成型材料
    • US5877258A
    • 1999-03-02
    • US740212
    • 1996-10-25
    • Norbert GuntherbergMartin WeberFreddy GruberGerhard Lindenschmidt
    • Norbert GuntherbergMartin WeberFreddy GruberGerhard Lindenschmidt
    • B29C47/00B29C45/00B29C47/14C08F265/06C08L9/06C08L21/00C08L25/02C08L25/04C08L51/00C08L51/04C08L51/06C08L53/02C08L71/02
    • C08L51/003C08L51/06C08L53/02Y10S525/902
    • Thermoplastic molding materials compriseA) from 30 to 98% by weight of a graft polymer ofa.sub.K) from 30 to 90% by weight of an elastomeric graft core, obtainable by copolymerization ofa.sub.K /1) from 80 to 99.99% by weight of a C.sub.1 -C.sub.10 -alkyl ester of acrylic acid,a.sub.K /2) from 0.01 to 20% by weight of a crosslinking monomer anda.sub.K /3) from 0 to 40% by weight of one or more further monomers, anda.sub.S) from 10 to 70% by weight of a graft shell ofa.sub.S /1) from 50 to 100% by weight of a styrene compound of the general formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or C.sub.1 -C.sub.8 -alkyl, and/or of a C.sub.1 -C.sub.8 -alkyl ester of acrylic acid or methacrylic acid, anda.sub.S /2) from 0 to 50% by weight of one or more further monomers,B) from 1 to 50% by weight of a thermoplastic polymer ofb.sub.1) from 50 to 100% by weight of styrene and/or .alpha.-methylstyrene,b.sub.2) from 0 to 50% by weight of acrylonitrile andb.sub.3) from 0 to 50% by weight of one or more further monomers, andC) from 1 to 70% by weight of a copolymer ofc.sub.1) from 30 to 90% by weight of styrene and/or .alpha.-methylstyrene,C.sub.2) from 10 to 70% by weight of butadiene andC.sub.3) from 0 to 30% by weight of one or more further monomers,in which all or virtually all of the olefinic double bonds have been hydrogenated.
    • 热塑性成型材料包括A)30至98重量%的aK的接枝聚合物,30重量%至90重量%的弹性体接枝核心,其通过aK / 1)的80至99.99重量% 丙烯酸的C1-C10烷基酯,aK / 2)0.01至20重量%的交联单体和K / 3)0至40重量%的一种或多种另外的单体,aS)为10至 70重量%的aS / 1的接枝壳)50至100重量%的通式为“IMAGE”的苯乙烯化合物,其中R 1和R 2各自为氢或C 1 -C 8烷基,和/或 丙烯酸或甲基丙烯酸的C 1 -C 8烷基酯和1/2)0-50%重量的一种或多种其它单体,B)1至50重量%的热塑性聚合物,b1)50 至100重量%的苯乙烯和/或α-甲基苯乙烯,b2)0至50重量%的丙烯腈和b3)0至50重量%的一种或多种其它单体,和C)1至70重量% 的c1)共聚物 30至90重量%的苯乙烯和/或α-甲基苯乙烯,C2)10至70重量%的丁二烯和C3)0至30重量%的一种或多种其它单体,其中全部或几乎全部 的烯属双键已被氢化。