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1. RU0002434887 - HIGH-DENSITY POLYETHYLENE COPOLYMER AND SYNTHESIS METHOD THEREOF

Office Russian Federation
Application Number 2008150856/04
Application Date 15.05.2007
Publication Number 0002434887
Publication Date 27.11.2011
Grant Number
Grant Date 27.11.2011
Publication Kind C2
IPC
C08J 5/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
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
C08F 2/34
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
2Processes of polymerisation
34Polymerisation in gaseous state
C08L 23/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
04Homopolymers or copolymers of ethene
06Polyethene
C08F 210/02
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
02Ethene
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
B29K2023/065
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
Inventors МИЧИ Уилльям Дж. (US)
УИЛСОН Дебра Р. (US)
УАЙТЕД Стефани М. (US)
КИННЭН Майкл А. (US)
MIChI Uill'jam Dzh. (US)
UILSON Debra R. (US)
UAJTED Stefani M. (US)
KINNEhN Majkl A. (US)
Priority Data 11438754 23.05.2006 US
Title
(EN) HIGH-DENSITY POLYETHYLENE COPOLYMER AND SYNTHESIS METHOD THEREOF
(RU) ПОЛИЭТИЛЕНОВЫЙ СОПОЛИМЕР ВЫСОКОЙ ПЛОТНОСТИ И СПОСОБ ЕГО ПОЛУЧЕНИЯ
Abstract
(EN)
FIELD: chemistry. SUBSTANCE: described is a high-density polyethylene copolymer for moulding packaging materials, which is a high molecular weight copolymer of ethylene and alpha-olefin. The copolymer has density in the range of 0.935-0.952 g/cm3, melt flow index (I2) in the range of 30-75 g/10 min, ratio I21/I2 in the range of 13-35, ratio Mw/Mn in the range of 3.5-8 and brittle point at least lower than -20°C. The invention also describes a method of producing a high-density polyethylene copolymer, an article and a method of making the article. EFFECT: obtaining a polyethylene copolymer, having improved properties which are suitable for pressure casting. 16 cl, 3 tbl, 4 ex

(RU)
Изобретение относится к полиэтиленовому сополимеру высокой плотности на основе полиэтилена высокой плотности, способу его получения и к изделию, выполненному из него. Описан полиэтиленовый сополимер высокой плотности для формования упаковочных материалов, являющийся высокомолекулярным сополимером этилена и альфа-олефина. Сополимер имеет плотность в интервале 0,935-0,952 г/см3, индекс текучести расплава (I2) в интервале 30-75 г/10 мин, отношение I21/I2 в интервале 13-35, отношение Mw/Mn в интервале 3,5-8, температуру хрупкости, по меньшей мере, ниже -20°С. Также описан способ получения полиэтиленового сополимера высокой плотности, изделие и способ получения изделия. Технический результат - получение полиэтиленового сополимера, имеющего улучшенные свойства, подходящие для литья под давлением. 4 н. и 12 з.п. ф-лы, 3 табл.