Polyimide and preparation process of same

Details Polyimide and preparation process of same Polyimide and preparation process of same

1993-03-31

1994-10-11

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528128, 528170, 528172, 528173, 528174, 528176, 528183, 528185, 528220, 528229, 528350, 528351, 528353, C08G 7310, C08G 6926

Patent

active

053548396

ABSTRACT:
A polyimide comprising a requisite structural unit having one or more recurring structural units of the formula: ##STR1## such as the structural units of the formula ##STR2## The polyimide can have an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.

REFERENCES:
patent: 4065345 (1977-12-01), Progar et al.
Chemical Abstracts, vol. 116, No. 6, Feb. 10, 1992, JPA-306529.
Chemical Abstracts, vol. 112, No. 20, May 14, 1990, JPA-1261422.

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