Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1992-12-18
1994-09-27
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528180, 528360, 528362, 525418, 525535, C08G 6344, C08G 7302, C08G 7500, C08G 8300
Patent
active
053508289
ABSTRACT:
Dithioether-linked phthalonitrile monomer are prepared by a substitution reaction between 4-nitrophthalonitrile and a dimercaptan and are polymerized to a high-temperature, oxidation-resistant polymer by heating them at a temperature above their melting point. The rate of polymerization is increased by the addition of an amine. Electrical conductivity of the polymer can be increased to the conductor range by heating the polymer above about 400.degree. C.
REFERENCES:
patent: 4226801 (1980-10-01), Keller et al.
patent: 4259471 (1981-03-01), Keller et al.
patent: 4409382 (1983-10-01), Keller
patent: 4587325 (1986-05-01), Keller
patent: 5004801 (1991-04-01), Keller et al.
patent: 5202414 (1993-04-01), Keller et al.
Teddy M. Keller, "Phthalonitrile-Based Conductive Polymer", J. Poly. Sci: rt A: Polymer Chemistry, vol. 25, 2569-2576 (Jun. 1987).
Keller et al., "High Temperature Intrinsically Conductive Polymer", Polymer Communications, vol. 28, Dec. 1987, pp. 334-336.
Keller Teddy M.
Price, deceased Thomas R.
Edelberg Barry A.
Hampton-Hightower P.
Kight III John
McDonnell Thomas E.
The United States of America as represented by the Secretary of
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