Pur-polyester flexible foams based on polyetheresterpolyols

Details Pur-polyester flexible foams based on polyetheresterpolyols Pur-polyester flexible foams based on polyetheresterpolyols

C - Chemistry, Metallurgy

08

G

C08G 63/668 (2006.01) C08G 18/72 (2006.01) C08G 63/78 (2006.01)

Patent

CA 2551714

The present invention relates to polyetheresterpolyols which have a hydroxyl number of from 60 to 160 and a viscosity of <=500 mPas at 75°C. These polyetheresterpolyols contain repeat units derived from I) aliphatic polycarboxylic acids, II) polyols having a hydroxyl number greater than 550 mg KOH/g, and III) polyols containing ether groups and having a hydroxyl number less than 120 mg KOH/g. This invention also relates to a process for the preparation of these polyetheresterpolyols, to a mixture containing the polyetheresterpolyols of the invention, to a process for the preparation of this mixture, to a process for the production of a PUR-polyester flexible foam from the mixture containing the polyetheresterpolyols of the invention, to the PUR-polyester flexible foam, to a process for the production of textile/foam and/or print/foam composites containing the PUR-polyester flexible foam, and to the textile/foam and/or print/foam

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