Process for producing polycyanoaryl ether powder

Details Process for producing polycyanoaryl ether powder Process for producing polycyanoaryl ether powder

1992-04-09

1993-08-24

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

558424, C07C25330, C07C25551, C07C25552

Patent

active

052391078

ABSTRACT:
A process for producing a polycyanoaryl ether powder which comprises reacting a dihalogenobenzonitrile, a dihydric phenol and an alkali metal salt in the presence of a polymerization solvent, and distilling the solvent, while pulverizing the reaction mixture under agitation. The process produces a polycyanoaryl ether powder having excellent physical properties and is useful as a material for electronic appliances, electric appliances and parts of machines.

REFERENCES:
patent: 3869499 (1975-03-01), Heath et al.
patent: 3873593 (1975-03-01), Heath et al.
patent: 3956320 (1976-05-01), Heath et al
patent: 5117002 (1992-05-01), Buchanan et al.

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