Title:
PRODUCTION OF IMPACT-RESISTANT AROMATIC-BASED RESIN
Document Type and Number:
Japanese Patent JPH02191617
Kind Code:
A
Abstract:
PURPOSE:To obtain the title resin comprising dispersed rubber particles having a specific median particle diameter, specific intrinsic viscosity, excellent impact resistance, appearance characteristics and mechanical characteristics by polymerizing an aromatic vinyl compound in the presence of a specific aromatic vinyl- conjugated diene-based copolymer. CONSTITUTION:An aromatic vinyl compound (preferably styrene) is polymerized in the presence of an aromatic vinyl-conjugated diene-based copolymer which is, for example, obtained by subjecting an aromatic vinyl compound and a conjugated diene to solution polymerization in the presence of an organolithium compound as a catalyst, has 550-2,000 centipoise viscosity in 5wt.% styrene solution at 25 deg.C, 13-30wt.% vinyl bond content of conjugated diene part and <=14wt.% bond content of aromatic vinyl compound component to give the aimed resin comprising dispersed rubber particles having 1-2.5mum median particle diameters and >=0.7dl/g intrinsic viscosity of resin component.
Inventors:
KAWADA TAKASHI
HIRAO TAKAMI
INOGUCHI NOBUAKI
HIRAO TAKAMI
INOGUCHI NOBUAKI
Application Number:
JP32171688A
Publication Date:
July 27, 1990
Filing Date:
December 20, 1988
Export Citation:
Assignee:
JAPAN SYNTHETIC RUBBER CO LTD
NIPPON STEEL CHEMICAL CO
NIPPON STEEL CHEMICAL CO
International Classes:
C08F279/02; C08F279/00; (IPC1-7): C08F279/02
Domestic Patent References:
| JPS63162713A | 1988-07-06 |
Attorney, Agent or Firm:
Shirai Shigetaka
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