Title:
QUICK CRYSTALLIZABLE BLOCK COPOLYESTER COMPOSITION
Document Type and Number:
Japanese Patent JPS5655451
Kind Code:
A
Abstract:
A fast crystallizing polyester composition comprising a block copolyester containing the repeating polymeric segments A and B wherein A is a polymeric segment of ethylene terephthalate units and B is a polymeric segment having a glass-transition temperature of less than 0 DEG C. and preferably less than -20 DEG C., the concentration of the segments of B being between 0.05 and 10 mole % of the block copolyester, and a crystallization nucleant which is an at least partially neutralized salt, preferably an alkali metal salt, of a polymer containing pendant neutralizable groups.
Inventors:
ERITSUKU NIIRUDO
Application Number:
JP13084580A
Publication Date:
May 16, 1981
Filing Date:
September 22, 1980
Export Citation:
Assignee:
ICI LTD
International Classes:
C08G63/00; C08G63/18; C08G63/183; C08L101/00; C08G63/60; C08G63/64; C08G63/66; C08G63/672; C08K7/20; C08L23/00; C08L33/00; C08L33/02; C08L67/00; C08L67/02; (IPC1-7): C08K7/20; C08L67/02; C08L101/08
Domestic Patent References:
| JPS478374A | ||||
| JPS463839A | ||||
| JPS50109947A | 1975-08-29 | |||
| JPS51111896A | 1976-10-02 | |||
| JP47049174A |
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