Process for the preparation of polyisocyanurate dispersions...

Details Process for the preparation of polyisocyanurate dispersions... Process for the preparation of polyisocyanurate dispersions...

C - Chemistry, Metallurgy

07

D

400/106, 403/13,

C07D 487/22 (2006.01) C08G 18/08 (2006.01) C08G 18/28 (2006.01) C08G 18/40 (2006.01) C08G 18/79 (2006.01) C08J 9/00 (2006.01)

Patent

CA 1200811

PROCESS FOR THE PREPARATION OF POLYISOCYANURATE DISPERSIONS MODIFIED WITH HALOGENATED ALCOHOLS AND COMPOSITIONS PREPARED THEREFROM Abstract of the Disclosure Polyisocyanurate polymers are prepared by poly- merization of polyisocyanates in organic solvents employing trimerization catalysts. The polyisocyanates are reacted with halogenated alcohols subsequent to polymerization. These polymers may be dispersed in polyols for the prepara- tion of cellular and non-cellular polyurethane products having improved flame retardant physical properties.

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