Process for producing foamed polymers

Details Process for producing foamed polymers Process for producing foamed polymers

C - Chemistry, Metallurgy

08

G

C08G 18/32 (2006.01) C08G 18/72 (2006.01) C08J 9/12 (2006.01)

Patent

CA 2049387

A process for producing a foamed polymer, particularly a polyurea foam, comprises reacting an isocyanate compound and at least one active hydrogen-containing compound in the presence of a heterogeneous blowing agent. The heterogeneous blowing agent is a permanent gas and is used at a temperature and a pressure thereby rendering it in the form of a liquid, solid or deep chilled gas. The exothermicity of the reaction is substantially compensated by the energy absorbing capacity of the heterogeneous blowing agent.

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