Processing

Please wait...

Settings

Settings

Goto Application

1. CN101490115 - High-density polyethylene compositions and method of making the same

Office China
Application Number 200780026290.5
Application Date 15.05.2007
Publication Number 101490115
Publication Date 22.07.2009
Grant Number 101490115
Grant Date 21.11.2012
Publication Kind B
IPC
C08F 210/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
B29C 45/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
CPC
C08F 210/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
B29C 45/0001
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
0001characterised by the choice of material
B29K 2023/065
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2023Use of polyalkenes ; or derivatives thereof; as moulding material
04Polymers of ethylene
06PE, i.e. polyethylene
0608characterised by its density
065HDPE, i.e. high density polyethylene
Applicants Dow Global Technologies Inc.
陶氏环球技术有限责任公司
Inventors Michie William J.
W·J·米基
Wilson Debra R.
D·R·威尔逊
Whited Stephanie M.
S·M·怀特德
Kinnan Michael A.
M·A·金南
Agents cheng wei
北京戈程知识产权代理有限公司 11314
Priority Data 11438754 23.05.2006 US
Title
(EN) High-density polyethylene compositions and method of making the same
(ZH) 高密度聚乙烯组合物及其制造方法
Abstract
(EN)
The instant invention is a high-density polyethylene composition, and a method of making the same. The high-density polyethylene composition of the instant invention includes an ethylene alpha-olefin copolymer having a density in the range of 0.935 to 0.952 g/cm3, a melt index (I2) in the range of 30 to 75 g/10 minutes, an I21/I2 ratio in the range of 13-35, a Mw/Mn ratio in the range of 3.5-8. The high-density polyethylene composition has a brittleness temperature of at least less than -20 DEG C. The process for producing a high-density polyethylene composition according to instant invention includes the following steps: (1) introducing ethylene, and an alpha-olefin comonomer into a reactor; (2) copolymerizing the ethylene with the alpha-olefin comonomer in the reactor; and (3) thereby producing the high-density polyethylene composition, wherein the high-density polyethylene composition having a density in the range of 0.935 to 0.952 g/cm3, a melt index (I2) in the range of 30 to 75 g/10 minutes, an I21/I2 ratio in the range of 13-35, a Mw/Mn ratio in the range of 3.5-8, and a brittleness temperature of at least less than -20 DEG C. The product of the invention includes the high-density polyethylene composition.

(ZH)

本发明为一种高密度聚乙烯组合物、其制造方法和由其制成的制品。本发明的高密度聚乙烯组合物包括密度为0.935至0.952克/立方厘米、熔体指数(I2)为30至75克/10分钟、I21/I2比率为13-35、Mw/Mn比率为3.5-8的乙烯α-烯烃共聚物。所述高密度聚乙烯组合物具有至少低于-20℃的脆性温度。制造本发明的高密度聚乙烯组合物的方法包括下列步骤:(1)将乙烯和一种或多种α-烯烃共聚单体引入反应器;(2)在反应器中在一种或多种α-烯烃共聚单体存在下(共)聚合乙烯;和(3)由此制得高密度聚乙烯组合物,其中所述高密度聚乙烯组合物的密度为0.935至0.952克/立方厘米,熔体指数(I2)为30至75克/10分钟,I21/I2比率为13-35,Mw/Mn比率为3.5-8,且脆性温度至少低于-20℃。本发明的制品包括本发明的高密度聚乙烯组合物。