Stock material or miscellaneous articles – Composite – Of aldehyde or ketone condensation product
Patent
1992-08-27
1994-01-25
Henderson, Christopher
Stock material or miscellaneous articles
Composite
Of aldehyde or ketone condensation product
524430, 428529, 428921, B32B 2108
Patent
active
052814866
ABSTRACT:
A fusible phenolic resin and a dialkyl-N, N-bis (hydroxyalkyl) aminoalkyl phosphonate are condensed to form a water-insoluble resin having fire retardant properties. Fire resistant materials are made by causing the condensation to occur in situ when a normally flammable material and the reactants are mixed and the mixture is heated at 250.degree. F. to 480.degree. F. Wooden articles such as molded hardboard roofing shingles of this invention do not lose their fire resistance after being soaked with rain repeatedly.
REFERENCES:
patent: 3132169 (1964-05-01), Birum et al.
patent: 3192242 (1965-06-01), Birum
patent: 3297796 (1967-01-01), Smith
patent: 3306937 (1967-02-01), Clampitt et al.
patent: 3309342 (1967-03-01), Friedman
patent: 3344112 (1967-09-01), Birum et al.
patent: 4012558 (1977-03-01), Wurman
patent: 4086206 (1978-04-01), Saito
patent: 4364991 (1982-12-01), Byrd
patent: 4459339 (1984-07-01), Libit
Stauffer Chemical Company--"Flame Retardant Chemicals" Product Data and Product Safety Information sheets regarding FYROL.RTM. 6 (Nov. 1980).
Henderson Christopher
Masonite Corporation
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