Foam formulations suitable for preparing water-blown...

Details Foam formulations suitable for preparing water-blown... Foam formulations suitable for preparing water-blown...

C - Chemistry, Metallurgy

08

G

403/14

C08G 18/32 (2006.01) C08G 18/48 (2006.01)

Patent

CA 2039432

T 0840 A B S T R A C T FOAM FORMULATIONS SUITABLE FOR PREPARING WATER-BLOWN HEAT-INSULATING MATERIAL USING POLYOLS AS SOFTENING POINT IMPROVERS, AND HEAT-INSULATING MATERIAL OBTAINED THEREWITH A foam formulation, useful in the preparation of water-blown heat-insulating material, comprising (i) one or more polyols, (ii) one or more organic polyisocyanates, (iii) water, and (iv) auxilia- ry materials known in the art, characterized in that the polyol or polyol mixture has an average functionality (Fn) varying from 2.7 to 4.3; a hydroxyl value (OHv) of 325 to 500 mg KOH/g, and a viscosity measured at 20 °C of between 350 mPa.s and 2300 mPa.s; the use of said polyol or polyol mixture as softening point improv- er in a process of preparing water-blown heat-insulating material, and the water-blown heat-insulating material so prepared. C10/T0840FF

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