Production of rigid polyurethane foams, and a blowing agent...

Details Production of rigid polyurethane foams, and a blowing agent... Production of rigid polyurethane foams, and a blowing agent...

C - Chemistry, Metallurgy

08

J

C08J 9/14 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2086997

The invention relates to a process for the production of rigid polyurethane foams using a specific blowing agent mixture of highly fluorinated and/or perfluorinated organic compounds, cyclopentane and, if desired, aliphatic and/or further cycloaliphatic hydrocarbons having 4 to 8 carbon atoms.

Méthode pour l'obtention de mousses de polyuréthane rigides, utilisant un mélange gonflant spécifique à base de composés organiques hautement fluorés et (ou) perfluorés, du cyclopentane et, si souhaitables, des hydrocarbures aliphatiques et (ou) cycloaliphatiques de 4 à 8 atomes de carbone.

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