C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
403/18
C08K 3/22 (2006.01) C08G 18/28 (2006.01) C08G 18/40 (2006.01) C08J 9/00 (2006.01) C08K 5/00 (2006.01)
Patent
CA 1208849
COMBUSTION MODIFIED FLEXIBLE POLYURETHANE FOAM ABSTRACT OF THE DISCLOSURE The present invention is directed to a combustion modified flexible polyurethane foam produced by reacting: (A) an organic polyisocyanate, (B) a polyether polyol selected from the group consisting of (i) a dispersion of a polyurea and/or polyhydrazodicarbonamide in a relatively high molecular weight organic compound containing at least two hydroxyl groups, wherein the concentration of the polyurea and/or polyhydrazodicarbonamide is from 1 to 40% by weight of the dispersion based on 100 parts by weight of said organic compound, (ii) a polyoxyalkylene triol having an OH number of from about 25 to about 40, and, (iii) mixtures thereof, (C) from about 80 to about 150 parts by weight of hydrated alumina of an average particle size of from about 1.5 to about 5 microns, (D) from about 4 to about 12 parts by weight of antimony trioxide, (E) from about 5 to about 30 parts by weight of decabromodiphenyl oxide, (F) from about 15 to about 30 parts by weight of a halogenated phosphate ester, (G) from 0 to about 5 parts by weight of a char former, (H) from about 1.5 to about 3.5 parts by weight of water, and, (I) from 0 to about 20 parts by weight of an organic blowing agent, said parts by weight of components (C) through (I) being based on 100 parts by weight of component (B), the ratio of components being such that the isocyanate index is from about 105 to about 115.
429974
Mobay Chemical Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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