Coextrusion binder based on a mixture of cografted polyolefins
    1.
    发明授权
    Coextrusion binder based on a mixture of cografted polyolefins 有权
    基于共移植聚烯烃的混合物的共挤出粘合剂

    公开(公告)号:US06475633B1

    公开(公告)日:2002-11-05

    申请号:US09562972

    申请日:2000-05-03

    IPC分类号: B32B2708

    摘要: The invention relates to a mixture which is useful as a coextrusion binder, comprising: at least (A) one polyethylene or one ethylene copolymer, at least (B) chosen from (B1) polypropylene or a propylene copolymer, (B2) poly(1-butene) homo- or copolymer, and (B3) polystyrene homo- or copolymer, the mixture of (A) and (B) being grafted with a functional monomer, this grafted mixture itself optionally being diluted in at least one polyolefin (C) or in at least one polymer (D) of elastomeric nature or in a mixture of (C) and (D). The invention also relates to polyolefin/binder/polyamide, EVOH, polyester or metal structures. The invention is useful for making packaging.

    摘要翻译: 本发明涉及可用作共挤出粘合剂的混合物,其包含:至少(A)一种聚乙烯或一种乙烯共聚物,至少(B)选自(B1)聚丙烯或丙烯共聚物,(B2)聚(1 - 丁烯)均聚物或共聚物,和(B3)聚苯乙烯均聚物或共聚物,(A)和(B)的混合物与官能单体接枝,该接枝混合物本身任选在至少一种聚烯烃(C)中稀释, 或至少一种弹性体的聚合物(D)或(C)和(D)的混合物。 本发明还涉及聚烯烃/粘合剂/聚酰胺,EVOH,聚酯或金属结构。 本发明对于制造包装是有用的。

    IMPACT MODIFIER AND USES THEREOF IN THERMOSET MATERIALS
    2.
    发明申请
    IMPACT MODIFIER AND USES THEREOF IN THERMOSET MATERIALS 审中-公开
    冲击改性剂及其在热塑性材料中的应用

    公开(公告)号:US20140018504A1

    公开(公告)日:2014-01-16

    申请号:US14007020

    申请日:2012-03-23

    IPC分类号: C08F299/04 B29B9/06

    摘要: The present invention relates to an impact modifier and a device and a method for the production thereof, as well as to a method for preparing a thermoset material, or a thermoset material precursor, from the impact modifier. The impact modifier comprises at least one copolymer selected from A-B-A, A-B, and A-B-C block copolymers in which: each block is linked to the other by means of a covalent bond or an intermediate molecule that is connected to one of the blocks by a covalent bond and to the other block by another covalent bond; A is a PMMA homopolymer or a copolymer of methyl methacrylate, A preferably being compatible with the resin; C is either (i) a PMMA homopolymer or a copolymer of methyl methacrylate, or (ii) a polymer based on monomers or a mixture of vinyl monomers, and blocks A and C are identical; and B is incompatible or partially compatible with the thermoset resin and incompatible with block A and optional block C. The impact modifier is characterized in that it takes the form of microgranules having a diameter of less than 1500 μm, and preferably between 400 and 1000 μm. The ratio of the standard-deviation/mean size of the particles is less than 10%, preferably less than 5%.

    摘要翻译: 本发明涉及抗冲改性剂及其制造方法及其制造方法,以及由抗冲改性剂制备热固性材料或热固性材料前体的方法。 抗冲改性剂包括至少一种选自ABA,AB和ABC嵌段共聚物的共聚物,其中:每个嵌段通过共价键或通过共价键与一个嵌段连接的中间分子彼此连接 并通过另一个共价键向另一个嵌段; A是PMMA均聚物或甲基丙烯酸甲酯共​​聚物,优选与树脂相容; C是(i)PMMA均聚物或甲基丙烯酸甲酯的共聚物,或(ii)基于单体的聚合物或乙烯基单体的混合物,并且嵌段A和C是相同的; 并且B与热固性树脂不相容或部分相容,并且与块A和任选的嵌段C不相容。抗冲改性剂的特征在于其具有直径小于1500μm,优选400至1000μm的微粒形式 。 颗粒的标准偏差/平均尺寸的比例小于10%,优选小于5%。