Title:
MANUFACTURE OF COPOLYMER
Document Type and Number:
Japanese Patent JPS5740511
Kind Code:
A
Abstract:
The invention relates to a new copolymer consisting of 20-40 % by weight of acrylonitrile and 60-80 % by weight of a-methylstyrene, having improved flow distortion characteristics. The invention is characterized in that the flow index is 45 at most, the spiral flow length is 65 at least and the ratio between spiral flow length and flow index 3.0 or higher.
Inventors:
YAN TEIISEN
YOSEFU RANBAATASU MARIA FUAN D
YOSEFU RANBAATASU MARIA FUAN D
Application Number:
JP10139381A
Publication Date:
March 06, 1982
Filing Date:
July 01, 1981
Export Citation:
Assignee:
STAMICARBON
International Classes:
C08F2/22; C08F212/00; C08F212/10; C08F2/00; C08F212/12; C08L7/00; C08L21/00; C08L23/00; C08L33/00; C08L33/02; C08L51/00; C08L51/02; C08L55/00; C08L101/00; (IPC1-7): C08F2/24; C08F212/12; C08L55/02