Paintable olefinic interpolymer compositions
    1.
    发明授权
    Paintable olefinic interpolymer compositions 失效
    可涂漆烯烃互聚物组合物

    公开(公告)号:US5883188A

    公开(公告)日:1999-03-16

    申请号:US926760

    申请日:1997-09-10

    IPC分类号: C08L51/06 C08L51/00

    CPC分类号: C08L51/06 Y10T428/31938

    摘要: Paintable thermoplastic polyolefin compositions are disclosed which comprise (i) about 20 to about 70 wt % of at least one graft-modified polypropylene, (ii) about 10 to about 40 wt % of at least one nongrafted or graft-modified homogeneously branched linear ethylene polymer, ethylene-propylene monomer rubber, ethylene-propylene-diene monomer rubber, heterogeneously branched linear ethylene polymer, styrene block copolymer, or a combination thereof and (iii) about 5 to about 50 wt % of an interpolymer of ethylene and an .alpha.,.beta.-unsaturated carbonyl copolymer, e.g. a copolymer of ethylene and acrylic acid. The polypropylene and, optionally the homogeneously branched linear ethylene polymer, ethylene-propylene monomer rubber, ethylene-propylene-diene monomer rubber, heterogeneously branched linear ethylene polymer, and styrene block copolymer are grafted with an unsaturated organic compound containing at least one site of ethylenic unsaturation and at least one carbonyl group, e.g. maleic anhydride. The compositions exhibit excellent paintability with conventional paints without prior application of a primer or surface treatment, good heat resistance, good low temperature impact resistance, and they can be recycled by melt blending the compositions with thermoplastic materials, e.g., in an extruder.

    摘要翻译: 公开了可涂覆的热塑性聚烯烃组合物,其包含(i)约20至约70重量%的至少一种接枝改性聚丙烯,(ii)约10至约40重量%的至少一种未接枝或接枝改性的均匀支化的线型乙烯 聚合物,乙烯 - 丙烯单体橡胶,乙烯 - 丙烯 - 二烯单体橡胶,非均匀支化的线性乙烯聚合物,苯乙烯嵌段共聚物或其组合,和(iii)约5-约50wt%的乙烯和α的互聚物, β-不饱和羰基共聚物,例如 乙烯和丙烯酸的共聚物。 聚丙烯和任选的均匀支化的线性乙烯聚合物,乙烯 - 丙烯单体橡胶,乙烯 - 丙烯 - 二烯单体橡胶,非均匀支化的线性乙烯聚合物和苯乙烯嵌段共聚物用含有至少一个烯属的位点的不饱和有机化合物 不饱和键和至少一个羰基,例如 马来酸酐。 组合物在常规涂料中表现出优异的可涂色性,而无需预先施用底漆或表面处理,良好的耐热性,良好的低温耐冲击性,并且它们可以通过将组合物与热塑性材料(例如在挤出机中)熔融共混来再循环。