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1. EA200500161 - COUPLED STYRENIC BLOCK COPOLYMERS AND PROCESS FOR PREPARING SAME

Office Eurasian Patent Organization
Application Number 200500161
Application Date 11.07.2003
Publication Number 200500161
Publication Date 25.08.2005
Grant Number 008191
Grant Date 27.04.2007
Publication Kind B1
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
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 КРАТОН ПОЛИМЕРЗ РИСЁЧ Б. В. null
KRATON POLYMERS RESEARCH B.V. null
Inventors Бенинг Роберт
Атвуд Харвей Эмерсон
Ван Дийк Маринус Питер
Рос Адриана Мария Петронелла
Мур Бэрри
Уиллис Карл
Ван Дийк Николаас Ян
BENING Robert
ATWOOD Harvey, Emerson
VAN DIJK Marinus, Pieter
ROS Adriana, Maria, Petronella
MOORE Barry
WILLIS Carl
VAN DIJK Nikolas, Jan
Agents Новоселова Светлана Владимировна
Novoselova S., V.
Priority Data 10395139 25.03.2003 US
Title
(EN) COUPLED STYRENIC BLOCK COPOLYMERS AND PROCESS FOR PREPARING SAME
(RU) СШИТЫЕ БЛОК-СОПОЛИМЕРЫ СТИРОЛА И СПОСОБ ИХ ПОЛУЧЕНИЯ
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.

(RU)

Изобретено усовершенствование способа получения сшитых блок-сополимеров стирола, в котором добавление к полимер-цементу от примерно 0,01 до примерно 1,5 эквивалентов металлалкильного соединения на эквивалент «живых» концов полимерной цепи улучшает эффективность сшивки. Получаемые радиальные блок-сополимеры стирола содержат сниженное количество олигомеров с пятью и более ветвями, что может быть очень желательным в некоторых прикладных задачах, например для модификации битума.