Rigid hybrid polyurethane foams

Details Rigid hybrid polyurethane foams Rigid hybrid polyurethane foams

C - Chemistry, Metallurgy

08

G

C08G 18/12 (2006.01) C08F 283/00 (2006.01) C08G 18/48 (2006.01) C08G 18/50 (2006.01) C08G 18/67 (2006.01) C08G 18/76 (2006.01)

Patent

CA 2465035

Rigid polyurethane foams that can be produced at component volumes ratios of less than 4:1 are prepared from an isocyanate component that contains certain polyfunctional (meth)acrylate compounds. These isocyanate components are mixed with a polyol component to produce rigid foams. The foams are particularly suitable for foam-in-place applications, such as for reinforcing structural members of automobiles.

La présente invention concerne des mousses de polyuréthane rigides pouvant être produites selon des rapports de volumes de constituants inférieurs à 4:1, préparées à partir d'un constituant isocyanate qui contient des composés de (méth)acrylate polyfonctionnels. Lesdits constituants isocyanates sont mélangés à un constituant polyol pour produire des mousses rigides. Lesdites mousses sont particulièrement utiles dans des applications de moussage in situ, notamment pour renforcer des éléments de structure d'automobiles.

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