Foam-forming mixtures with decreased decomposition of...

C - Chemistry – Metallurgy – 07 – C

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C07C 265/14 (2006.01) C08G 18/70 (2006.01) C08G 18/72 (2006.01) C08J 9/14 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2141890

A polyisocyanate having an acid value of at least 0.01% HCl is used to produce polyisocyanate, polyisocyanurate and polyurethane urea foams with an HCFC blowing agent. The use of such a polyisocyanate is advantageous because the polyisocyanate does not cause significant decomposition of the HCFC blowing agent.

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