Self-extinguishing polyurethanes

Details Self-extinguishing polyurethanes Self-extinguishing polyurethanes

C - Chemistry, Metallurgy

08

L

403/17, 400/5453

C08L 61/28 (2006.01) C08G 18/38 (2006.01) C08J 9/00 (2006.01) C08K 3/32 (2006.01) C08K 5/3492 (2006.01) C08K 9/10 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2033119

HOE 90/H 002 Self-extinguishing polyurethanes Abstract of the disclosure: Self-extinguishing polyurethanes are obtained by stepwise polyaddition of diisocyanates or polyisocyanates with polyols with the addition of a flameproofing agent comprising a phosphorus component and a nitrogen com- ponent as synergists. While the phosphorus component used is an ammonium polyphosphate which is sparingly soluble in water and, if desired, has been microencapsulated with a melamine/formaldehyde resin, the organic nitrogen component is selected from the group comprising a) bis(triazinyl)piperazines b) hydroxyalkyl isocyanurates c) condensation products of amino-1,3,5-triazines with aldehydes.

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