Fire retardant resin binder solutions

Details Fire retardant resin binder solutions Fire retardant resin binder solutions

C - Chemistry, Metallurgy

08

K

154/131, 400/545

C08K 3/32 (2006.01) B32B 21/02 (2006.01) C08L 61/24 (2006.01) C09J 3/16 (1980.01)

Patent

CA 1067638

ABSTRACT OF THE DISCLOSURE Novel stable-in-use aminoplast resin binder solutions comprising aqueous solutions of predominantly a urea-formalde- hyde resin having a formaldehyde to urea ratio of less than 2.0, from about 12 to 30% by weight dissolved diammonium phos- phate or mixture of diammonium phosphate and ammonium polyphos- phate and not more than 50% by weight water. Preferred aminoplast resin binder solutions also contain a methylolated melamine-formaldehyde resin. A novel process for the production of the stable aminoplast resin binder solutions containing high percentages of ammonium phosphates and suitable for production of fire-retardant particle board is disclosed.

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