Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1979-05-29
1980-09-16
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
260465F, 260465H, 528 9, 528166, 528206, 528271, C08G 7300, C08G 7900, C08G 7912
Patent
active
042231230
ABSTRACT:
Polyphthalocyanine resins are obtained by heating, at a temperature from ut 260.degree. C. to about 295.degree. C., one or more bisorthodinitriles of the general formula: ##STR1## wherein R' is an alkyl radical with 1 to 6 carbon atoms, R" is hydrogen or an alkyl radical with 1 to 6 carbon atoms, and the phenyl groups are attached at the meta or para position. These resins are particularly useful in high-temperature structural composites.
REFERENCES:
patent: 3926629 (1975-12-01), Weigl
patent: 4056560 (1977-11-01), Griffith et al.
patent: 4057569 (1977-11-01), Griffith et al.
patent: 4136107 (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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