Interfacial method of producing prepolymer of aromatic polythiaz

Details Interfacial method of producing prepolymer of aromatic polythiaz Interfacial method of producing prepolymer of aromatic polythiaz

1989-06-02

1990-08-14

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528336, C08G 7532

Patent

active

049488678

ABSTRACT:
A method of producing a prepolymer of aromatic polythiazole from an aromatic diaminodithiol compound or a salt thereof and a dicarboxylic acid derivative, the prepolymer having a repeating unit represented by the following general formula: ##STR1## wherein R.sub.1 is an aromatic group having at least one benzene nucleus, and R.sub.2 is a residual group of the dicarboxylic acid derivative, comprising the step of polymerizing the aromatic diaminodithiol compound or a salt thereof and the dicarboxylic acid derivative by an interfacial polymerization method.

REFERENCES:
patent: 4606875 (1986-08-01), Chenevey et al.
patent: 4622285 (1986-11-01), Ahne

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