Fire retardant resin binder solutions

Details Fire retardant resin binder solutions Fire retardant resin binder solutions

C - Chemistry, Metallurgy

08

K

154/131, 400/734

C08K 3/32 (2006.01) B32B 21/02 (2006.01) C08L 61/24 (2006.01) C08L 97/02 (2006.01) C09J 161/20 (2006.01) C09J 161/34 (2006.01) C08L 61/28 (2006.01)

Patent

CA 1067231

ABSTRACT OF THE DISCLOSURE Novel stable-in-use aminoplast resin binder solutions comprising aqueous solutions of predominantly a urea-formaldehyde resin having a formaldehyde to urea ratio of less than 2.0, from about 40 to 56% by weight dissolved ammonium polyphosphate reacted with 5 to 12.5 percent by weight formaldehyde and not more than 30% by weight water. Preferred aminoplast resin binder solutions also contain a methylolated melamine-formaldehyde resin. A novel process for the production of the table amino- plast resin binder solutions containing high percentages of ammonium polyphosphates and suitable for production of fire-retardant particle board is disclosed.

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