Fine cell, water-blown rigid polyurethane foams

Details Fine cell, water-blown rigid polyurethane foams Fine cell, water-blown rigid polyurethane foams

C - Chemistry, Metallurgy

08

G

C08G 18/66 (2006.01) C08G 18/36 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01) C08J 9/12 (2006.01) C08L 75/04 (2006.01) F16L 59/02 (2006.01)

Patent

CA 2362505

The invention relates to a method for producing water-driven, fine-cell rigid foams containing urethane and/or isocyanurate groups by reacting polyisocyanates with a polyol component in the form of an emulsion. The invention also relates to foam-mouldable open-cell polyurethane foams.

L'invention concerne un procédé qui permet de produire des mousses rigides à petits alvéoles, entraînables par l'eau et renfermant des groupes uréthane et/ou isocyanate, en faisant réagir des polyisocyanates avec un composant polyol en émulsion. Elle concerne également des mousses de polyuréthane à alvéoles ouverts pouvant être moulées par expansion.

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