Process for the preparation of flame resistant, elastic...

Details Process for the preparation of flame resistant, elastic... Process for the preparation of flame resistant, elastic...

C - Chemistry, Metallurgy

08

G

403/32

C08G 18/10 (2006.01) C08G 18/18 (2006.01) C08G 18/40 (2006.01) C08G 18/65 (2006.01) C08K 5/3492 (2006.01)

Patent

CA 2006697

PROCESS FOR THE PREPARATION OF FLAME RESISTANT ELASTIC POLYURETHANE FLEXIBLE FOAMS AND LOW VISCOSITY MELAMINE POLYETHER POLYOL DISPERSIONS THEREFOR ABSTRACT OF DISCLOSURE The present invention deals with a process for the preparation of flame resistant, elastic polyurethane flexible foams, comprising reacting: a) organic and/or modified organic polyisocyanate; with b) higher molecular weight polyols; and c) 1,6-hexanediol and/or trimethylolpropane; in the presence of d) melamine or mixtures of melamine and other flame retardants; e) at least one blowing agent; and f) at least one catalyst; and optionally g) auxiliaries and/or additives. -66- In addition the present invention deals with suitable low viscosity melamine and polyetherpolyol dispersions for the process of the present invention comprising melamine, 1,6- hexanediol and/or trimethylolpropane and at least one polyetherpolyol. -67-

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