Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heavy metal or aluminum reactant having at least one...
Patent
1980-08-19
1981-12-08
Torrence, Dolph H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heavy metal or aluminum reactant having at least one...
260465F, 528166, 528210, C08G 7306, C07C12175
Patent
active
043048960
ABSTRACT:
The synthesis and subsequent polymerization of highly aromatized phthalonile monomers which contain phenoxy linkages having a substantially aromatic spacer moiety between the two terminal phthalonitrile groups is disclosed. The phthalonitriles are synthesized by a nucleophilic displacement of a nitro substituent, which is activated by the ring cyano groups on the aromatic ring, by a phenoxide containing unit. The phthalocyanine polymers have improved toughness, low water absorptivity and higher thermal and oxidative resistance than currently available polymers.
REFERENCES:
patent: 3869499 (1975-03-01), Heath et al.
patent: 4223123 (1980-09-01), Keller et al.
Griffith James R.
Keller Teddy M.
Branning A. L.
McDonnell T. E.
Sciascia R. S.
The United States of America as represented by the Secretary of
Torrence Dolph H.
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