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1. CN101213227 - Polyethylene composition of improved processability

Office China
Application Number 200680023844.1
Application Date 28.06.2006
Publication Number 101213227
Publication Date 02.07.2008
Grant Number 101213227
Grant Date 24.11.2010
Publication Kind B
IPC
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
297
Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
06
using a catalyst of the coordination type
08
polymerising mono-olefins
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
04
Homopolymers or copolymers of ethene
08
Copolymers of ethene
C08F 297/08
C08L 23/08
CPC
C08F 297/08
C08L 23/04
C08L 23/06
C08L 23/0815
C08L 2205/02
C08L 2205/025
Applicants Borealis Tech OY
博里利斯技术公司
Inventors Van Marion Remko
雷姆科·范玛丽昂
Carlsson Roger
罗格·卡尔松
Eklind Hans
汉斯·埃克林德
Helland Irene
伊雷妮·赫兰
Agents zhangshe gao libing lin
北京康信知识产权代理有限责任公司 11240
北京康信知识产权代理有限责任公司 11240
Priority Data 05014216.5 30.06.2005 EP
Title
(EN) Polyethylene composition of improved processability
(ZH) 改善的加工性能的聚乙烯组合物
Abstract
(EN)
The present invention relates to a polyethylene composition, comprising a base resin which comprises (i) a first fraction which is an ethylene homo- or copolymer, and (ii) a second fraction which is an ethylene copolymer, wherein the first fraction (i) has a lower weight average molecular weight than the second fraction (ii), and the base resin has a density of less than 0.940 g/cm3 and a shear thinning index SHI2.7/210 of at least 25.

(ZH)

本发明涉及一种包括基础树脂的聚乙烯组合物,该基础树脂包括(i)第一部分,其是乙烯均聚物或乙烯共聚物,以及(ii)第二部分,其是乙烯共聚物,其中第一部分(i)具有比第二部分(ii)更低的重均分子量,并且该基础树脂具有小于0.940g/cm3的密度以及至少25的剪切稀化指数SHI2.7/210