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1. CN1675272 - Coupled styrenic block copolymers and process for preparing same

Office China
Application Number 03819798.7
Application Date 11.07.2003
Publication Number 1675272
Publication Date 28.09.2005
Grant Number 1302036
Grant Date 28.02.2007
Publication Kind C
IPC
C08F 297/04
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
297Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
02using a catalyst of the anionic type
04polymerising vinyl aromatic monomers and conjugated dienes
C08L 95/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
95Compositions of bituminous materials, e.g. asphalt, tar or pitch
CPC
C08F 8/04
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
8Chemical modification by after-treatment
04Reduction, e.g. hydrogenation
C08F 297/04
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
297Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
02using a catalyst of the anionic type
04polymerising vinyl aromatic monomers and conjugated dienes
C08F 297/044
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
297Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
02using a catalyst of the anionic type
04polymerising vinyl aromatic monomers and conjugated dienes
044using a coupling agent
C08L 53/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
53Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
02of vinyl-aromatic monomers and conjugated dienes
C08L 53/025
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
53Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
02of vinyl-aromatic monomers and conjugated dienes
025modified
C08L 95/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
95Compositions of bituminous materials, e.g. asphalt, tar, pitch
Applicants Kraton Polymers U. S. LLC
克拉通聚合物研究有限公司
Inventors Bening Robert
R·本宁
Atwood Harvey
H·E·埃特伍德
Dijk Marinus Pieter Van
M·P·范迪杰克
Ros Adriana Maria Petronella
A·M·P·罗斯
Moore Barry
B·摩尔
Willis Carl
C·威利斯
Dijk Nikolaas Jan Van
N·J·范迪杰克
Agents liu menghai
中国国际贸易促进委员会专利商标事务所
Priority Data 10395139 25.03.2003 US
Title
(EN) Coupled styrenic block copolymers and process for preparing same
(ZH) 偶联的苯乙烯嵌段共聚物及其制备方法
Abstract
(EN)
Disclosed is an improvement to a process for preparing coupled styrenic block copolymers wherein adding from about 0.01 to about 1.5 equivalents of a metal alkyl compound per equivalent of living polymer chain ends to the cement, during or after polymerization, improves coupling efficiencies. The resultant radial styrenic block copolymers have reduced amounts of 5+ arm oligomers which can be very desirable is certain applications, such as the modification of bitumen.

(ZH)

公开了制备偶联的苯乙烯嵌段共聚物的方法的改进,其中在聚合之中或之后,以每当量活性聚合物链端计,添加约0.01-约1.5当量的金属烷基化合物到胶浆中,从而改进偶联效率。所得星形苯乙烯嵌段共聚物具有降低含量的5+臂低聚物,这在一些应用,如改性沥青中,是非常理想的。