High viscosity surfactants for the manufacture of...

Details High viscosity surfactants for the manufacture of... High viscosity surfactants for the manufacture of...

C - Chemistry, Metallurgy

08

G

C08G 77/14 (2006.01) B01F 17/52 (2006.01) B01F 17/54 (2006.01) C08G 77/46 (2006.01) C08J 9/00 (2006.01) C08L 75/08 (2006.01)

Patent

CA 2162948

The present invention discloses high viscosity surfactants which may be used when diluted to a viscosity below 2500 cP at 25°C, as surfactants for the production of polyuretahne foam. Specifically, the surfactants of the present invention have the generalized average formula M*DxD"yM* wherein M* is (CH3)3SiO1/2 or R(CH3)2SiO1/2; M" is R(CH3)2SiO1/2; D is (CH3)2SiO2/2; D" is (CH3)(R)SiO2/2; x is 81-220, y is 8-40 and D/(D"+M")10; R is a polyether-containing substituent derived from a blend of CnH2n-started polyethers selected from two different groups such that the average molecular mass is 1100-1800. 36

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