Aromatic ether and alkynyl containing phthalonitriles

Details Aromatic ether and alkynyl containing phthalonitriles Aromatic ether and alkynyl containing phthalonitriles

2007-09-06

2011-10-18

Jagannathan, Vasu (Department: 1764)

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C528S210000, C528S392000, C528S422000, C528S425000, C526S285000

Reexamination Certificate

active

08039576

ABSTRACT:
Compounds having the formulas below. R is an aromatic-containing group. Each M is an alkali metal. Each m is a positive integer. The value of n is a positive integer. The value p is 0 or 1. If p is 0 then n is 1. A thermoset made by curing a composition containing the below phthalonitrile monomers.A method of reacting a diphenyl acetylene compound with an excess of an aromatic diol in the presence of an alkali metal carbonate to form the above oligomer. A method of reacting a phenoxyphthalonitrile with an acetylene compound to form the phthalonitrile monomer below.

REFERENCES:
patent: 5003039 (1991-03-01), Keller
patent: 5374701 (1994-12-01), Hay et al.
patent: 5464926 (1995-11-01), Keller
patent: 5965268 (1999-10-01), Sastri et al.
patent: 6756470 (2004-06-01), Keller et al.
patent: 2008/0255287 (2008-10-01), Laskoski et al.

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