Polymer compositions containing substituted biphenyl pyrazines

Details Polymer compositions containing substituted biphenyl pyrazines Polymer compositions containing substituted biphenyl pyrazines

1994-10-19

1995-11-07

Krass, Frederick

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 73, 528 96, 528128, 528172, 528173, 528175, 528176, 528184, 528185, 528190, 528191, 528201, 528202, 528203, 528206, 528208, 528210, C08G 6300

Patent

active

054649234

ABSTRACT:
The present invention provides novel substituted biphenyl pyrazines or pyrazine derivatives ("BPD") which are functional and have useful application as a monomer for a variety of high performance polymers such as polyester, polyarylate, polycarbonate, polyetherketones, epoxides, polyimides, polyamides, and polyamides-imides; and as pigments for coating compositions such as paints. These BPD have the general formula: ##STR1## wherein R.sub.1 -R.sub.8 and n are defined herein.

REFERENCES:
patent: 3449429 (1969-06-01), Carrick et al.
patent: 4605774 (1986-08-01), Baron et al.
Chemical Abstracts 121: 108831: "Preparation of 2,5-Bis(4-Hydroxyphenyl)Pyrazine Derivatives".

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