Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1979-06-25
1980-12-09
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528 86, 528166, 528168, 528353, 260465F, C08G 7306
Patent
active
042386012
ABSTRACT:
A bisorthodinitrile of the formula: ##STR1## wherein R' and R" are perfluorinated alkyls having from 1 to 4 carbon at, and the phenyl groups are attached at the para position. A polyphthalocyanine resin is prepared by heating one or more of these bisorthodinitriles at a temperature from about 260.degree. C. to about 295.degree. C. These resins are particularly useful in high-temperature structural composites used in high-temperature, moist or corrosive environments.
REFERENCES:
patent: 3993631 (1976-11-01), Griffith et al.
patent: 4067860 (1978-01-01), Griffith et al.
Griffith James R.
Keller Teddy M.
Lee Lester L.
McDonnell Thomas
Schneider Philip
Sciascia R. S.
The United States of America as represented by the Secretary of
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