Application of phosphate surfactant modified fire-retardant...

Details Application of phosphate surfactant modified fire-retardant... Application of phosphate surfactant modified fire-retardant...

B - Operations, Transporting

27

K

117/34, 400/8402

B27K 3/52 (2006.01) B27K 3/12 (2006.01) B27K 3/15 (2006.01)

Patent

CA 1140288

ABSTRACT OF THE DISCLOSURE Fire-retardant compositions consisting of an inorganic, fire-retardant phosphate salt and a binder of a poly-2-oxazoline having a weight average molecular weight of at least 1,000 and at least 40 percent phos- phorylated are applied to wood or wood products by an improved method comprising admixing with a solution of the composition, either prior to or simultaneously with the application of the composition to the wood or wood product, an anionic or nonionic organic phosphate ester surfactant. The use of these surfactants increases the rate and extent of penetration of the fire-retardant com- position into the wood.

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