摘要:
Tiger stripe modifier being a heterophasic polypropylene composition comprising a propylene homopolymer and an elastomeric propylene copolymer, wherein said propylene homopolymer has a melt flow rate MFR 2 (230°C) in the range of above 70 to 300 g/10min; the xylene cold soluble fraction of the heterophasic polypropylene composition has an intrinsic viscosity in the range of more than 4.0 to below 12.0 dl/g; and the comonomer content of the xylene cold soluble fraction of the heterophasic polypropylene composition is in the range of 20.0 to 60.0 wt.-%; wherein further the heterophasic polypropylene composition fulfills the inequation (I)
wherein C is the comonomer content of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1), and IV is the intrinsic viscosity of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECOl).
摘要:
Process for the preparation of an α-nucleated polypropylene comprising the steps of (a) adding an α-nucleating agent into a reactor system, (b) polymerizing in said reactor system in the presence of a catalyst system propylene and optionally ethylene and/or C 4 to C 12 α-olefins obtaining thereby a polypropylene comprising said α-nucleating agent, (c) discharging said polypropylene from the reactor system, and (d) extruding said polypropylene obtaining thereby the α-nucleated polypropylene,
wherein the α-nucleating agent is selected from the group consisting of benzene amid derivatives, sorbitol derivatives, nonitol derivatives and mixtures thereof.
摘要:
Heterophasic polypropylene copolymers having an MFR (2.16 kg, 230°C) of 15 to 200 g/10 min, determined according to ISO 1133 comprising a propylene homo- or copolymer matrix with an MFR (2.16 kg, 230°C) of 80 to 500 g/10 min, determined according to ISO 1133 (A) and an ethylene or C 4 -C 10 -alpha-olefin propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction soluble in p-xylene at 25°C (XCS), having an intrinsic viscosity of 2.85 to 4.00 dl/g, determined according to DIN EN ISO 1628-1 and -3 and being composed of propylene monomer units in an amount of 70 wt% to 90 wt%, with optimum balance of impact resistance and low amount of hexane extractables; a process for their preparation and their use.
摘要翻译:根据ISO 1133测定的具有15至200g / 10min的MFR(2.16kg,230℃)的多相聚丙烯共聚物,其包含MFR(2.16kg,230℃)为80至 根据ISO 1133(A)测定的500g / 10min和分散在基体内的乙烯或C 4 -C 10α-烯烃丙烯橡胶相(B),其中多相聚丙烯树脂具有可溶于对 - 25℃下的二甲苯(XCS),其特性粘度为2.85至4.00dl / g,根据DIN EN ISO 1628-1和-3测定,由70重量%至90重量%的丙烯单体单元组成 %,耐冲击性最佳平衡和少量己烷可提取物; 它们的准备和使用过程。
摘要:
Tiger stripe modifier being a heterophasic polypropylene composition having a melt flow rate MFR 2 (230°C) in the range of 0.5 to 20 g/10min and comprises a propylene homopolymer and an elastomeric propylene copolymer, wherein said propylene homopolymer has a melt flow rate MFR 2 (230°C) in the range of above 10 to 300 g/10min; the xylene cold soluble fraction of the heterophasic polypropylene composition has an intrinsic viscosity in the range of more than 2.5 to below 11.0 dl/g; and the comonomer content of the xylene cold soluble fraction of the heterophasic polypropylene composition is in the range of 10.0 to 25.0 wt.-%; wherein further the heterophasic polypropylene composition fulfills the inequation (I)
wherein C is the comonomer content of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1), and IV is the intrinsic viscosity of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1).
摘要:
The present invention relates to a new biaxially oriented polypropylene (BOPP) film, a process for the preparation of such film as well as the use of a polypropylene for the preparation of such film and an article comprising such film.