Polyamide from aromatic amide groups-containing diamine

Details Polyamide from aromatic amide groups-containing diamine Polyamide from aromatic amide groups-containing diamine

1990-06-04

1992-11-10

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528322, 528331, 528344, 528350, 528353, C08G 6900, C08G 6908, C08G 6926

Patent

active

051624893

ABSTRACT:
Diamines having a 1,1,3-trimethylphenylindane dicarboxylic moiety linked on both sides to phenylene diamine by an amide bond (PIDA diamines) are disclosed. By reacting these diamines with aromatic difunctional acid derivatives, amorphous polymers having high glass transition temperatures (Tg) can be prepared. If aliphatic diacid derivatives are used the resulting polymers have a lower Tg, but have the advantage of melt-processability. The PIDA-diamines can also be used in the preparation of polyimides, being reacted either with tri-or tetracarboxylic anhydrides or with imide group-containing acid derivatives.

REFERENCES:
patent: 4980504 (1990-12-01), De Jonge et al.
Kirk-Othmer Encyclopedia of Chemical Technology, vol. 3, Third Ed. pp. 228 and 229 (1978).

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