Impact-modified compositions
    1.
    发明授权
    Impact-modified compositions 有权
    冲击改性组合物

    公开(公告)号:US08969476B2

    公开(公告)日:2015-03-03

    申请号:US11260711

    申请日:2005-10-27

    CPC classification number: C08F265/04 C08F212/10

    Abstract: In one of its aspects the invention is directed to rubber modified thermoplastic resin compositions comprising discontinuous elastomeric phase particles derived from a unitary rubber substrate having at least a bimodal particle size distribution, wherein the elastomeric phase particles comprise a polymer having structural units derived from at least one (C1-C12)alkyl(meth)acrylate monomer and are dispersed in a rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is grafted as a shell to elastomeric phase core particles, and wherein the rigid thermoplastic phase comprises structural units derived from at least one vinyl aromatic monomer, at least one monoethylenically unsaturated nitrile monomer and at least one (C1-C12)alkyl- or aryl-(meth)acrylate monomer. In another aspect the rigid thermoplastic phase of the compositions comprises a first thermoplastic phase at least a portion of which is grafted to the elastomeric phase; and a second thermoplastic phase comprising a polymer prepared separately in the absence of elastomeric phase and added to the composition.

    Abstract translation: 在其一个方面,本发明涉及橡胶改性的热塑性树脂组合物,其包含衍生自具有至少双峰粒度分布的单一橡胶基质的不连续弹性体相颗粒,其中弹性体相颗粒包含具有至少衍生的结构单元的聚合物 一种(甲基)丙烯酸(C 1 -C 12)烷基酯单体,并分散在刚性热塑性相中,其中刚性热塑性相的至少一部分作为壳接枝到弹性体相核心颗粒上,其中刚性热塑性相包括结构 衍生自至少一种乙烯基芳族单体,至少一种单烯属不饱和腈单体和至少一种(C1-C12)烷基 - 或芳基 - (甲基)丙烯酸酯单体的单元。 在另一方面,组合物的刚性热塑性相包含第一热塑性相,其至少一部分接枝到弹性体相; 和第二热塑性相,其包含在不存在弹性体相的情况下单独制备的聚合物并加入到组合物中。

    Impact-modified compositions and method
    3.
    发明授权
    Impact-modified compositions and method 有权
    冲击改性组合物和方法

    公开(公告)号:US07049368B2

    公开(公告)日:2006-05-23

    申请号:US10748394

    申请日:2004-05-05

    Abstract: The present invention relates to a rubber modified thermoplastic resin composition comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is grafted to the elastomeric phase, which is prepared by a method comprising the steps of: (a) polymerizing a mixture of monomers in a first stage in the presence of the elastomeric phase, at least one of which monomers is selected from the group consisting of vinyl aromatic monomers and at least one of which monomers is selected from the group consisting of monoethylenically unsaturated nitrile monomers, followed by (b) polymerizing one or more monomers in at least one subsequent stage in the presence of the elastomeric phase from (a), wherein the one or more monomers comprise at least one monomer selected from the group consisting of (C1-C12)alkyl- and aryl-(meth)acrylate monomers. The method is also provided.

    Abstract translation: 本发明涉及一种橡胶改性的热塑性树脂组合物,其包含分散在刚性热塑性相中的不连续的弹性体相,其中刚性热塑性相的至少一部分接枝到弹性体相,其通过包括以下步骤的方法制备: :(a)在弹性体相存在下在第一阶段聚合单体的混合物,其中至少一种单体选自乙烯基芳族单体,并且其中至少一种单体选自 的单烯属不饱和腈单体,然后(b)在来自(a)的弹性体相存在下的至少一个后续阶段中聚合一种或多种单体,其中所述一种或多种单体包含至少一种选自以下的单体: 的(C 1 -C 12 -C 12)烷基 - 和芳基 - (甲基)丙烯酸酯单体。 还提供了该方法。

    IMPACT-MODIFIED MOLDING COMPOSITION AND METHOD
    5.
    发明申请
    IMPACT-MODIFIED MOLDING COMPOSITION AND METHOD 审中-公开
    冲击改性成型组合物和方法

    公开(公告)号:US20100093915A1

    公开(公告)日:2010-04-15

    申请号:US12469437

    申请日:2009-05-20

    Abstract: A method is disclosed for preparing an acrylic-styrene-acrylonitrile (ASA) resin, which comprises the steps of: (a) polymerizing a mixture comprising at least one acrylate monomer and at least one polyethylenically unsaturated monomer to form a rubber substrate, followed by (b) polymerizing a mixture of monomers in the presence of the rubber substrate, at least one of which monomers is selected from the group consisting of vinyl aromatic monomers and at least one of which monomers is selected from the group consisting of monoethylenically unsaturated nitrile monomers, and optionally followed by (c) polymerizing one or more monomers in at least one subsequent stage in the presence of the rubber substrate from (b), wherein the one or more monomers comprise at least one monomer selected from the group consisting of (C1-C12)alkyl- and aryl-(meth)acrylate monomers; wherein the amount of unreacted polyethylenically unsaturated monomer remaining in the rubber substrate before step (b) is less than 5.6 micromoles per gram based on the dry weight of the rubber substrate. The invention also relates to a molding composition comprising an ASA resin comprising an elastomeric phase derived from a rubber substrate comprising structural units derived from at least one polyethylenically unsaturated monomer; wherein the rubber substrate comprises less than 5.6 micromoles of unreacted polyethylenically unsaturated monomer per gram of rubber substrate based on dry weight of the rubber substrate. Articles comprising said ASA resin and/or made from said molding composition are also disclosed.

    Abstract translation: 公开了一种制备丙烯酸 - 苯乙烯 - 丙烯腈(ASA)树脂的方法,其包括以下步骤:(a)使包含至少一种丙烯酸酯单体和至少一种多烯属不饱和单体的混合物聚合以形成橡胶基材,随后 (b)在橡胶基质的存在下聚合单体的混合物,其中至少一种单体选自乙烯基芳族单体,并且其中至少一种单体选自单烯属不饱和腈单体 ,并且任选地随后(c)在来自(b)的橡胶底物存在下的至少一个后续阶段中聚合一种或多种单体,其中所述一种或多种单体包含至少一种选自(C1 -C 12)烷基 - 和芳基 - (甲基)丙烯酸酯单体; 其中在步骤(b)之前残留在橡胶基材中的未反应的多烯属不饱和单体的量相对于橡胶基材的干重小于5.6微摩尔/克。 本发明还涉及一种模塑组合物,其包含ASA树脂,其包含衍生自橡胶基材的弹性体相,其包含衍生自至少一种多烯属不饱和单体的结构单元; 其中所述橡胶基材基于所述橡胶基材的干重,每克橡胶基材包含小于5.6微摩尔未反应的多烯属不饱和单体。 还公开了包含所述ASA树脂和/或由所述模塑组合物制成的制品。

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