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    • 5. 发明授权
    • Ionomer/high density polyethylene blends with improved flow
    • 具有改善流动性的离聚物/高密度聚乙烯共混物
    • US06596815B1
    • 2003-07-22
    • US10057117
    • 2002-01-25
    • Stewart Carl Feinberg
    • Stewart Carl Feinberg
    • C08L2300
    • C08L23/06C08L23/08C08L23/0869C08L23/0876C08L51/06C08L2666/04
    • An ionomer/high density polyethylene (HDPE) blend with improved flow (e.g., lower viscosity) can be achieved without significantly degrading physical properties such as impact resistance and tensile strength by the addition of low molecular weight ethylene/acrylic acid copolymer (e.g., so-called acid wax polymer derived from copolymerizing at least 5 weight percent and preferably greater than 9 weight percent acrylic acid and/or methacrylic acid with ethylene and having a melt index, ASTM D1238, preferably greater than 900 dg/min and preferably greater than 5,000 dg/min). The blend may further have for every one hundred parts by weight of ionomer/high density polyethylene blend from one to twenty parts by weight polyethylene modified with from 0.2 to 5.0 weight percent maleic anhydride comonomer as an impact resistance additive. The blends exhibiting improved flow characteristics according to the instant invention are particularly useful in the manufacture of automotive parts, panels and the like having a “class A” surface.
    • 通过加入低分子量乙烯/丙烯酸共聚物,可以实现具有改进流动性(例如较低粘度)的离子交联聚合物/高密度聚乙烯(HDPE)共混物而不显着降解物理性能如耐冲击性和拉伸强度(例如, 来自共聚的至少5重量%,优选大于9重量%的丙烯酸和/或甲基丙烯酸与乙烯并且具有熔体指数ASTM D1238,优选大于900dg / min,优选大于5,000 dg / min)。 共混物可以进一步具有每100重量份的离子交联聚合物/高密度聚乙烯共混物,其中1至20重量份用0.2至5.0重量%马来酸酐共聚单体改性的聚乙烯作为耐冲击添加剂。 表现出根据本发明的改善的流动特性的共混物特别可用于制造具有“A级”表面的汽车部件,面板等。
    • 9. 发明授权
    • Ionomer/polyamide blends with improved flow and impact properties
    • 离子聚合物/聚酰胺共混物具有改善的流动性和冲击性能
    • US06756443B2
    • 2004-06-29
    • US10057145
    • 2002-01-25
    • Stewart Carl Feinberg
    • Stewart Carl Feinberg
    • C08L7700
    • C08L77/00C08L23/08C08L23/0815C08L23/0869C08L23/0876C08L23/16C08L51/06C08L77/02C08L77/06C08L2666/06C08L2666/24C08L23/00C08L2666/02C08L51/00
    • An ionomer/polyamide blend with improved flow (e.g., lower viscosity) can be achieved while simultaneously maintaining or improving physical properties such as low temperature Izod impact resistance by the addition of low molecular weight ethylene/acrylic acid copolymer (e.g., so-called acid wax polymer derived from copolymerizing at least 5 weight percent and preferably greater than 9 weight percent acrylic acid and/or methacrylic acid with ethylene and having a melt index, ASTM D1238, preferably greater than 900 dg/min and most preferably greater than 5,000 dg/min). Optionally, the blends can further contain additives such as very low density polyethylene (VLDPE), ethylene propylene elastomer (EPR), ethylene propylene diene monomer elastomer (EPDM), corresponding maleic anhydride grafted elastomers (MAN-g-VLDPE; MAN-g-EPR; and MAN-g-EPDM), or mixtures thereof. The blends exhibiting improved flow characteristics according to the instant invention are particularly useful in the manufacture of automotive parts, panels and the like having a “class A” surface.
    • 可以通过加入低分子量乙烯/丙烯酸共聚物(例如所谓的酸)同时维持或改善物理性能,例如低温悬臂梁式冲击强度,可以实现具有改善流动性(例如,较低粘度)的离聚物/聚酰胺共混物 衍生自共聚合至少5重量%,优选大于9重量%丙烯酸和/或甲基丙烯酸与乙烯并且具有熔体指数ASTM D1238,优选大于900dg / min,最优选大于5,000dg / min)。 任选地,共混物可以进一步含有添加剂,例如极低密度聚乙烯(VLDPE),乙烯丙烯弹性体(EPR),乙烯丙烯二烯单体弹性体(EPDM),相应的马来酸酐接枝弹性体(MAN-g-VLDPE; MAN- EPR和MAN-g-EPDM)或其混合物。 表现出根据本发明的改善的流动特性的共混物特别可用于制造具有“A级”表面的汽车部件,面板等。