Aromatic polyamides containing ether linkages and process for pr

Details Aromatic polyamides containing ether linkages and process for pr Aromatic polyamides containing ether linkages and process for pr

1979-07-05

1981-07-14

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528172, 528182, 528185, C08G 6932, C08G 6940

Patent

active

042787866

ABSTRACT:
A heat-resistant polyamide polymer having melt-moldability is obtained by reacting an aromatic diamine having the general formula: ##STR1## with an equivalent amount of aromatic dicarboxylic acid dihalide in an organic solvent in the presence of an aqueous solution of an alkali-metal hydroxide. When an equimolar mixture of terephthalic acid dihalide and isophthalic dihalide is reacted with the diamine, polyamide polymers with good melt-moldability are obtained.

REFERENCES:
patent: 3354125 (1967-11-01), Smith et al.
patent: 3503931 (1970-03-01), Radlmann et al.
patent: 3505288 (1970-04-01), Bodesheim et al.
patent: 3663517 (1972-05-01), Adachi

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