Core-shell copolymer and resin composition containing same

    公开(公告)号:US11746173B2

    公开(公告)日:2023-09-05

    申请号:US17423360

    申请日:2020-08-18

    Applicant: LG Chem, Ltd.

    CPC classification number: C08F236/10 C08F279/06 C08L27/06 C08L2207/53

    Abstract: Provided is a core-shell copolymer, and in particular, a core-shell copolymer including a core and a shell surrounding the core, wherein the core includes a conjugated diene monomer-derived repeating unit, an aromatic vinyl monomer-derived repeating unit, and an aromatic (meth)acrylate monomer-derived repeating unit, the shell includes an alkyl (meth)acrylate monomer-derived repeating unit, an aromatic vinyl monomer-derived repeating unit, and an aromatic (meth)acrylate monomer-derived repeating unit, the core has a particle size of 800 Å to 900 Å, the core-shell copolymer has a particle size of 900 Å to 1000 Å, the core has a refractive index of 1.5355 to 1.5425, and the core-shell copolymer has a refractive index of 1.5415 to 1.5440.

    RUBBER GRAFT COPOLYMER, AND THERMOPLASTIC RESIN COMPOSITION CONTAINING RUBBER GRAFT COPOLYMER
    5.
    发明申请
    RUBBER GRAFT COPOLYMER, AND THERMOPLASTIC RESIN COMPOSITION CONTAINING RUBBER GRAFT COPOLYMER 有权
    橡胶树脂共聚物和含有橡胶共聚物的热塑性树脂组合物

    公开(公告)号:US20150065651A1

    公开(公告)日:2015-03-05

    申请号:US14394703

    申请日:2013-03-17

    Abstract: The present invention relates to a thermoplastic resin composition comprising a rubber graft copolymer comprising a core layer containing a rubber copolymer and a shell layer grafted on the core layer and a thermoplastic resin comprising a polycarbonate resin and an aliphatic polyester resin in the mass ratio of the rubber graft copolymer/the thermoplastic resin of 3/100 or more, wherein the shell layer is obtained by polymerizing or copolymerizing a (meth)acrylate monomer having an epoxy group, and the amount of the (meth)acrylate monomer having an epoxy group is 3 parts by mass or more and less than 29 parts by mass based on 100 parts by mass of the rubber graft copolymer. The thermoplastic resin composition of the present invention can be utilized in various applications.

    Abstract translation: 本发明涉及一种热塑性树脂组合物,其包含橡胶接枝共聚物,该橡胶接枝共聚物包含含有橡胶共聚物的芯层和接枝在芯层上的壳层,以及包含聚碳酸酯树脂和脂族聚酯树脂的热塑性树脂,其质量比为 橡胶接枝共聚物/ 3/100以上的热塑性树脂,其中壳层通过聚合或共聚具有环氧基的(甲基)丙烯酸酯单体而得到,并且具有环氧基的(甲基)丙烯酸酯单体的量为 相对于100质量份橡胶接枝共聚物,为3质量份以上且小于29质量份。 本发明的热塑性树脂组合物可用于各种应用。

    Methacrylate-butadiene-styrene graft polymer and its PVC blends having
low yellowness, good clarity, and improved impact strength
    10.
    发明授权
    Methacrylate-butadiene-styrene graft polymer and its PVC blends having low yellowness, good clarity, and improved impact strength 失效
    甲基丙烯酸酯 - 丁二烯 - 苯乙烯接枝聚合物及其PVC共混物具有低黄度,良好的透明度和改善的冲击强度

    公开(公告)号:US5268430A

    公开(公告)日:1993-12-07

    申请号:US760721

    申请日:1991-09-16

    Inventor: I-Chung W. Wang

    Abstract: Multi-stage rubber-based MBS resin compositions are provided which include a polymeric substrate stage of a conjugated diolefin-based polymer or copolymer and optional units derived from a cross-linking agent or agents, and at least one polymeric graft stage graft polymerized in the presence of the substrate stage which include monomers of an acrylate, a vinyl aromatic, or a mixture of those monomers and optional units derived from a cross-linking agent or agents and/or units which serve as a graft-linking agent or agents wherein the weight ratio of acrylate in all graft stages combined to vinyl aromatic in all graft stages combined is at least 1.2:1. Additionally, modified vinyl chloride polymer compositions which include a vinyl chloride polymer or copolymer in combination with an impact modifying, yellowness index improving amount of the multi-stage rubber-based resin compositions above are provided. These modified vinyl chloride polymer compositions have a low yellowness index, good clarity, and desirable impact properties. Finally, processes for the production of the above compositions are provided.

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