Composition for forming an intumescent material

Details Composition for forming an intumescent material Composition for forming an intumescent material

C - Chemistry, Metallurgy

09

D

403/9

C09D 5/18 (2006.01) C08L 61/28 (2006.01) C09K 21/14 (2006.01)

Patent

CA 1100250

ABSTRACT The invention provides a composition for forming an intumescent material which upon heating decomposes into gas and a solid foam residue, comprising: a water- dispersible melamine formaldehyde resin which when cured is hydrophobic; a setting agent which hardens in the presence of water thereby to cause the composition to set; a cross-linking agent for curing the resin, the cross-linking agent being a polyamido compound; an ammonium phosphate; polyvinyl acetate; a solid poly- hydroxy compound; and reinforcing fibrous material. To form the intumescent material, the composition is caused to set and the melamine resin is cured. The intumescent material has improved anti-cracking properties.

296240

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