Transparent polyamide from aromatic dicarboxylic acid and disubs

Details Transparent polyamide from aromatic dicarboxylic acid and disubs Transparent polyamide from aromatic dicarboxylic acid and disubs

1978-10-26

1980-05-13

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

260 334R, 528310, 528330, 528331, 528338, 528346, 528347, 528349, C08G 6926

Patent

active

042029619

ABSTRACT:
The transparent polyamides according to the invention are obtained by polycondensation of mixtures of terephthalic acid, or of an amide-forming derivative thereof, and a diamine of the formula I ##STR1## in which R.sub.1 and R.sub.2 are each cycloalkyl which has 4-12 C atoms and which can be substituted by alkyl,

REFERENCES:
patent: 3150117 (1964-09-01), Gabler
patent: 3563959 (1971-02-01), Schade et al.
patent: 3939147 (1976-02-01), Hugelin
Chemical Abstracts, vol. 36 (1942), 4720.sup.4 .

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