C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/28 (2006.01) C08G 18/48 (2006.01) C08J 9/14 (2006.01)
Patent
CA 2052227
A process for preparing formed articles made of polyurethane foams, which comprises reacting at least a polyisocyanate with at least a compound containing end activated hydrogens in the presence of an expanding medium, selected from at least a hydrofluoroalkane and/or perfluoroalkane, and of a product, containing at least a structural unit of the aminic type, chemically bound or present in free form in one of the two polyurethane reagents, said expanding medium being dissolved in said one of the two polyurethane reagents.
Cancellier Vito
Cecchini Corrado
Ciriello Luciano
Lunardon Gianflavio
Robic
The Dow Chemical Company
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