Process for the preparation of cellular polymers having...

Details Process for the preparation of cellular polymers having... Process for the preparation of cellular polymers having...

C - Chemistry, Metallurgy

08

G

403/13, 403/14

C08G 18/28 (2006.01) C08G 18/40 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01) C08G 18/60 (2006.01)

Patent

CA 1146700

Abstract of the Disclosure This invention relates to a process for preparing cellular polymers having urethane groups, isocyanurate groups, or both. The cellular polymers are prepared by reacting an organic polyisocyanate with certain polymer dispersions in the presence of a blowing agent. The polymer dispersions comprise (a) as a continuous phase, a polyol having a functionality of 2 to 8 and a hydroxyl number of 150 to 700; and (b) as a dispersed phase, an organic compound having (a) at least one Zerewitinoff active hydrogen atom, (b) a melting point of 30-C to 260-C, and (c) a molecular weight of 178 to 100,000.

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