Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From ketone or ketene reactant
Patent
1981-08-11
1982-06-08
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From ketone or ketene reactant
528235, 528247, 528266, C08G 1200
Patent
active
043340555
ABSTRACT:
The invention relates to a novel resin derived from acenaphthene and to process for its production.
The resin comprises oligomers of naphthalic acid groups bridged by substantially only keto groups, the oligomers being joined together with a di- or tetra-functional primary aromatic amine and having been derived from a resin produced by acid-catalyzed condensation of acenaphthene and a formaldehyde donor.
It is envisaged that the resin will be of use in the preparation of drogue parachutes and in other circumstances where a thermally stable resin is required.
REFERENCES:
patent: 2954360 (1960-09-01), Krzikalla et al.
patent: 3165558 (1965-01-01), Imoto et al.
patent: 3303167 (1967-02-01), Kakiuchi et al.
patent: 3513221 (1970-05-01), Huang et al.
patent: 3714131 (1973-01-01), Hoback et al.
patent: 3755254 (1973-08-01), Zellner
patent: 3767616 (1973-10-01), Zellner
Brain Sally A.
Robinson Joseph G.
Coal Industry (Patents) Limited
Phynes Lucille M.
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