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1. KR1020050021458 - COUPLED STYRENIC BLOCK COPOLYMERS AND PROCESS FOR PREPARING SAME

Office Republic of Korea
Application Number 1020057000555
Application Date 11.01.2005
Publication Number 1020050021458
Publication Date 07.03.2005
Grant Number 1006264420000
Grant Date 20.09.2006
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
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
Applicants KRATON POLYMERS RESEARCH B.V.
크레이튼 폴리머즈 리서치 비.브이.
Inventors BENING ROBERT
베닝로버트
ATWOOD HARVEY EMERSON
엣우드하비에머슨
VANDIJK MARINUS PIETER
반다이크마리누스피에테르
ROS ADRIANA MARIA PETRONELLA
로스아드리아나마리아페트로넬라
MOORE BARRY
무어베리
WILLIS CARL
윌리스카알
VANDIJK NIKOLAAS JAN
반다이크니콜라아스얀
Agents 차윤근
Priority Data 10395139 25.03.2003 US
Title
(EN) COUPLED STYRENIC BLOCK COPOLYMERS AND PROCESS FOR PREPARING SAME
(KO) 커플링된 스티렌 블록 공중합체 및 이의 제조방법
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.

© KIPO & WIPO 2007

(KO)
본 발명은 중합 동안 또는 중합 후에 리빙 중합체 사슬 1당량 당 금속 알킬 화합물 약 0.01 내지 약 1.5 당량을 접합물에 첨가하여 커플링 효율을 향상시키는, 커플링된 스티렌 블록 공중합체의 개선된 제조방법에 관한 것이다. 수득되는 방사형 스티렌 블록 공중합체는 5+ 아암의 소중합체 함량이 감소되어 역청 개질과 같은 특정 용도에 매우 바람직할 수 있다.