Polyol mixture for the preparation of rigid polyurethane foams

Details Polyol mixture for the preparation of rigid polyurethane foams Polyol mixture for the preparation of rigid polyurethane foams

C - Chemistry, Metallurgy

08

L

C08L 71/02 (2006.01) C08G 18/66 (2006.01) C08J 9/04 (2006.01) C08K 5/17 (2006.01) C08L 67/02 (2006.01)

Patent

CA 2369803

The present invention relates to polyol mixtures which are suitable for the preparation of rigid polyurethane foams and comprise addition products of alkylene oxide on aromatic di- or polyamines, and rigid foams prepared with these polyol mixtures.

L'invention concerne des mélanges de polyols convenant à la fabrication de mousses rigides de polyuréthanne et contenant des produits d'addition résultant de l'addition d'oxyde alkylénique à des diamines ou des polyamines aromatiques. L'invention concerne également les mousses rigides fabriquées avec ces mélanges de polyols.

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