Preparation of solid polymers from aromatic primary diamine and

Details Preparation of solid polymers from aromatic primary diamine and Preparation of solid polymers from aromatic primary diamine and

1975-08-04

1977-09-13

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 302, 260 326NA, 260 63N, 260 78TF, 428474, C08G 7314

Patent

active

040481441

ABSTRACT:
A process for preparing high molecular weight solid polymers, which process comprises reacting essentially equal molar amounts of a carbocylic aromatic primary diamine and an acyl halide derivative of trimellitic anhydride under essentially anhydrous conditions for a period of time and at a temperature controlled to produce a polymer with free carboxyl groups and amide groups available for further reaction. Also, a process for preparing cured polyamine-imide polymers which comprises heating of the soluble polymers prepared as aforementioned at a temperature above 150.degree. C. sufficient to effectively and substantially convert said carboxyl and amide groups to imide groups and thereby produce a polyamine-imide which is insoluble in organic polar solvents.

REFERENCES:
patent: 3347828 (1967-10-01), Stephens et al.
patent: 3920612 (1975-11-01), Stephens

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