Title:
POLYIMIDE, POLY(AMIDE-IMIDE), POLY(ESTER IMIDE), POLYAMIDE ACID POLY(AMIDE-AMIDE ACID) OR POLY(ESTER AMIDE ACID) POLYMER
Document Type and Number:
Japanese Patent JPS60258228
Kind Code:
A
Abstract:
Aromatic or aliphatic dianhydrides and/or acid anhydrides are reacted with aromatic diamines of formula (a) alone or in combination with other diamines to produce polyimides, polyamide acids, poly(amide-imides), poly(amide-amide acids), poly(esterimides) or poly)esteramide acids). These polymers are thermoplastic in nature and have improved processing characteristics and thermal stability. The polymers may be prepared by either melt or solution polymerization techniques.wherein R1, R2 and R3 each independently is hydrogen, halogen or unsubstituted or substituted hydrocarbyl,X1 and X2 each independently is substituted or unsubstituted branched, linear or cyclic alkylene or alkenylene of 1 to about 30 carbon atoms, -S-, or -O- with the proviso that X, or X2 and may not both concurrently be -S- or -0-.n, n' and n" each independently is an integer of 1 to 4.
Inventors:
BERGER ABE (US)
VORA ROHITKUMAR H (US)
VORA ROHITKUMAR H (US)
Application Number:
JP11060585A
Publication Date:
December 20, 1985
Filing Date:
May 24, 1985
Export Citation:
Assignee:
M & T CHEMICALS INC
International Classes:
C08G73/00; H05K1/03; C08G73/10; C08G73/14; C08G73/16; (IPC1-7): C08G73/10
Domestic Patent References:
| JPS5827721A | 1983-02-18 | |||
| JPS57168943A | 1982-10-18 |
Foreign References:
| US4444979A | 1984-04-24 | |||
| US3249588A | 1966-05-03 |
Attorney, Agent or Firm:
Shigeru Yagita