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    • 10. 发明授权
    • Propylene polymer based compounds and heat-sealable multi-layer sheets containing them
    • 基于丙烯聚合物的化合物和含有它们的可热封的多层片材
    • US07148289B2
    • 2006-12-12
    • US10489549
    • 2002-09-23
    • Valerio CoppiniHerve Joseph Gislain CuypersOlivier Lhost
    • Valerio CoppiniHerve Joseph Gislain CuypersOlivier Lhost
    • C08L23/00C08L23/10C08L23/12
    • C08L23/14C08L2205/02C08L2666/04
    • A polypropylene composition is disclosed, having a sealing initiation temperature below 80° C., and containing less than 1% by weight of monomeric units derived from ethylene with respect to the total weight of the composition, and comprising:—from 35 to 68% by weight of a random copolymer of propylene (copolymer (A)) containing 16 to 30% by weight of monomeric units derived from I-butene and from 0 to 0.5% by weight of monomeric units derived from ethylene with respect to the total weight of copolymer (A), and—from 65 to 32% by weight of a random copolymer of propylene (copolymer (B)) containing 35 to 55% by weight of monomeric units derived from I-butene and from 0 to 1% by weight of monomeric units derived from ethylene with respect to the total weight of copolymer (B). Heat-sealable sheets containing a sealing layer of the above composition are also disclosed.
    • 公开了一种聚丙烯组合物,其密封起始温度低于80℃,并且相对于组合物的总重量,含有少于1重量%的衍生自乙烯的单体单元,并且包含: - 35至68重量% 的丙烯(共聚物(A))的无规共聚物,其含有16至30重量%的衍生自1-丁烯的单体单元和0至0.5重量%的衍生自乙烯的单体单元, 共聚物(A)和65〜32重量%的丙烯(共聚物(B))的无规共聚物,其含有35〜55重量%的来自1-丁烯的单体单元和0〜1重量% 衍生自乙烯的单体单元相对于共聚物(B)的总重量。 还公开了含有上述组合物的密封层的热封片。