Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-06-01
1977-10-11
Marquis, Melvyn I.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
156173, 260 54, 260 56, 260 58, 428289, B65H 8100, C08G 806, C08G 822, C08K 340
Patent
active
040534472
ABSTRACT:
A resinous product has high resistance to flame spread, good heat release and exhibits a low smoke-developed rating when exposed to flame or to indirect or radiant heat, and is flexible, tough and resistant to cracking and embrittlement upon curing. Such a product is the condensation product of resorcinol with or without included phenol, and an admixture of paraformaldehyde and furfural or furfuryl alcohol or both. The resorcinol starting material of this invention can also suitably be used in the form of a B-stage or partially cured resin or resorcinol-phenol-formaldehyde which is then condensed with the aforesaid aldehydes or such aldehyde substance and furfuryl alcohol. The product is useful in making castings or moldings which are resistant to embrittlement or cracking upon curing, and in making tough fiberglass parts, and it can contain fillers or the like. A method of making the product and articles is provided.
REFERENCES:
patent: 1802390 (1931-04-01), Novotny
patent: 3312650 (1967-04-01), Case et al.
Modern Plastics Encyclopedia, 1968 (McGraw-Hill) (N.Y.) (Sept. 1967), pp. 590-593.
Condensed Chemical Dictionary (5th ed.) (Reinhold) (N.Y.) (1965), pp. 505-506.
Fletcher H. H.
Marquis Melvyn I.
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