Title:
耐衝撃性ポリスチレンをアニオン重合する方法
Document Type and Number:
Japanese Patent JP2006503965
Kind Code:
A
Abstract:
Anionic polymerization process for preparing impact-modified polystyrene, by 1) preparing a rubber solution from diene monomers or from diene monomers and styrene monomers by anionic solution polymerization, using an organyllithium compound, 2) adding sufficient organylaluminum compound to give an Al/Li molar ratio >1 (or in the case of dialkylaluminum phenolates >0.5), 3) adding styrene monomer, and 4) adding sufficient organyllithium compound, or organyllithium compound and organylaluminum compound, to make the Al/Li molar ratio <1 (or in the case of dialkylaluminum phenolates <0.5) ist, and polymerizing the mixture.
Inventors:
Philip De Bois
Uve clay
Uve clay
Application Number:
JP2004547536A
Publication Date:
February 02, 2006
Filing Date:
October 21, 2003
Export Citation:
Assignee:
BASF Aktiengesellschaft
International Classes:
C08F279/02; C08F4/42; C08F4/44; C08F257/02; C08F279/00; C08F287/00; C08F297/04; C08L51/00
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel