Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heavy metal or aluminum reactant having at least one...
Patent
1979-05-24
1981-03-31
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heavy metal or aluminum reactant having at least one...
260465F, 260465H, 528166, 528206, 528210, 528271, C08G 7306
Patent
active
042594715
ABSTRACT:
Polyphthalocyanine resins are obtained by heating, at a temperature from ut 240.degree. C. to 305.degree. C., one or more bisorthodinitriles of the general formula: ##STR1## wherein x is from 1 to 10 and the phenyl groups are attached at the meta or para position. These resins have exceptional thermal stability and oxidative resistance making them particularly useful in high-temperature structural composites.
REFERENCES:
patent: 3926629 (1975-12-01), Weizl
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.
Ellis William T.
Lee Lester L.
McDonnell Thomas
Sciascia R. S.
The United States of America as represented by the Secretary of
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