C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
402/49, 402/50,
C08K 3/38 (2006.01) C08G 8/06 (2006.01) C08J 9/04 (2006.01)
Patent
CA 1186440
ABSTRACT OF THE DISCLOSURE Flame retardant polymer resins formed by an acid condensation reaction from a mixture of resorcinol and furfural with a molar excess of the aldehyde. In one particular embodiment the resin is formed of a mixture of two prepolymer solutions with at least a boric acid catalyst, one or both of the prepolymer solutions being an acid-condensation reaction product of resorcinol and furfural with excess aldehyde functionality, or one of the prepolymers being a mix of substantially unreacted resorcinol and furfural with a slight molar excess of aldehyde.
373851
Dietrich Herbert
Mcallister Lawrence E.
Fiber Materials Inc.
Macrae & Co.
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