Transparent polyamides

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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Details

260 308R, 260 334R, 528339, 528340, C08G 6926

Patent

active

041119215

ABSTRACT:
A polyamide composition, useful in the preparation of transparent sheets, having improved resistivity toward solvents containing moieties of terephthalic acid and 2-methylpentamethylenediamine, said polyamide characterized by a content of moieties of 2-ethyltetramethyldiamine and/or of isophthalic acid in a concentration totalling 15 to 30 mole percent, with respect to the sum of all diamine moieties or all dicarboxylic acid moieties, as the case may be.

REFERENCES:
patent: 3516972 (1970-06-01), Wolfes et al.
patent: 3563959 (1971-02-01), Schade et al.

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