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    • 3. 发明申请
    • BIMODAL POLYPROPYLENE AND PROCESS FOR THE PREPARATION THEREOF
    • 双官能聚丙烯及其制备方法
    • WO2016116606A1
    • 2016-07-28
    • PCT/EP2016/051353
    • 2016-01-22
    • TOTAL RESEARCH & TECHNOLOGY FELUY
    • STANDAERT, AlainROEGIERS, KristienVANTOMME, Aurélien
    • C08L23/14
    • C08L23/142C08K5/0083C08L23/12C08L2201/10C08L2205/025C08L2308/00C08L2314/06
    • The present invention relates to a polypropylene composition comprising: a first polypropylene homopolymer or random copolymer (PPR1) having a comonomer content lower than the comonomer content of the second polypropylene, a second polypropylene (PPR2) which is a random copolymer of propylene and of the comonomer; said comonomer being an alpha-olefin different from propylene, the melting temperature of the polypropylene composition (Tm(PPR)) being defined as Tm(PPR) > 165 - 6.9*[total comonomer content] - 8.4*[comonomer content of the first polypropylene], the difference between the melting temperature and the crystallization temperature of the polypropylene composition ranges from 27 and 33, and a xylene soluble fraction (XS) at 23°C of not more than 1.5 wt. %. The present invention also relates to a process for the preparation of said polypropylene composition. The present invention further relates to the use of said polypropylene composition for producing films or moulded articles.
    • 本发明涉及聚丙烯组合物,其包含:共聚单体含量低于第二聚丙烯的共聚单体含量的第一聚丙烯均聚物或无规共聚物(PPR1),作为丙烯与丙烯的无规共聚物的第二聚丙烯(PPR2) 共聚单体; 所述共聚单体是不同于丙烯的α-烯烃,聚丙烯组合物的熔融温度(Tm(PPR))定义为Tm(PPR)> 165-6.9 * [总共聚单体含量]〜8.4 * [第一 聚丙烯],聚丙烯组合物的熔融温度和结晶温度之差为27〜33℃,23℃下的二甲苯可溶成分(XS)为1.5重量%以下。 %。 本发明还涉及制备所述聚丙烯组合物的方法。 本发明还涉及所述聚丙烯组合物用于生产薄膜或模塑制品的用途。