Composition for forming an intumescent material

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

1978-02-02

1980-07-01

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 83, 521136, 521187, 521907, C08J 900

Patent

active

042107253

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 polyhydroxy 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.

REFERENCES:
patent: 2566964 (1951-09-01), Scholz
patent: 2684953 (1954-07-01), Stilbert, Jr.
patent: 3037951 (1962-06-01), Basto
patent: 4013599 (1977-03-01), Strauss et al.
patent: 4043950 (1977-08-01), Wilmsen

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