Production of rigid foams based on isocyanate

Details Production of rigid foams based on isocyanate Production of rigid foams based on isocyanate

C - Chemistry, Metallurgy

08

J

C08J 9/14 (2006.01)

Patent

CA 2181829

In a process for producing rigid foams based on isocyanate, the blowing agent used is a mixture of at least one low-boiling hydrocarbon having from 3 to 7 carbon atoms, low molecular weight monohydric alcohols containing primary or secondary hydroxyl groups and having from 1 to 4 carbon atoms, and, if desired, the carbon dioxide formed from water and isocyanate. The rigid foams can be used as insulation material.

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