摘要:
The present invention relates to catalyst systems of the Ziegler-Natta type, to a process for preparing them, to their use for the polymerization of olefins and to ethylene copolymers which can be prepared using this catalyst system.
摘要:
Monomodal copolymers of ethylene and molding compositions comprising such copolymers, wherein the copolymers have a density determined according to DIN EN ISO 1183-1, variant A in the range from 0.938 to 0.944 g/cm3, a melt index MFR21 determined according to ISO 1133 at 190° C. under a load of 21.6 kg in the range from 12 to 17 g/10 min, a weight average molar mass Mw, in the range from 140 000 g/mol to 330 000 g/mol, a polydispersity Mw/Mn in the range from 9 to 17, and a content of comonomer side chains per 1000 carbon atoms C x equal to or above a value defined via equation (I) Cx=128.7−134.62×d′, wherein d′ is the numerical value of the density of the copolymer in g/cm3, the use of the copolymers for producing injection-molded articles, as well as injection-molded articles comprising the copolymers, and process for the preparation of such monomodal copolymers.
摘要翻译:乙烯的单共聚物和包含这种共聚物的模塑组合物,其中共聚物具有根据DIN EN ISO 1183-1,变体A在0.938至0.944g / cm 3范围内测定的密度,根据ISO 1133测定的熔体指数MFR 21 190℃,21.6kg,12-17g / 10min范围内的重均摩尔质量Mw,140,000g / mol〜330000g / mol,多分散性Mw / Mn 在9至17的范围内,每1000个碳原子的共聚单体侧链的含量C x等于或高于通过式(I)定义的值Cx = 128.7-134.62×d',其中d'是 共聚物的密度(g / cm 3),用于制备注射成型制品的共聚物的使用,以及包含共聚物的注模制品以及制备这种单峰共聚物的方法。