Processability of hydrocarbon blown, polyisocyanate based...

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 9/04 (2006.01) C08G 18/28 (2006.01) C08G 18/42 (2006.01) C08J 9/14 (2006.01) C08K 5/00 (2006.01) C08K 5/01 (2006.01)

Patent

CA 2175972

There is now provided a polyisocyanate-based foam made by reacting an organic polyisocyanate with a polyol solution containing a C4 -C7 aliphatic and/or cycloaliphatic hydrocarbon as a blowing agent. The hydrocarbon blowing agent is soluble in the polyol solution having polyols with polyester linkages by using a reacted or unreacted compatibilizing agent represented by the formula: Image wherein R1 is preferentially OH, and R2 is a C6 - C24 aliphatic, branched or unbranched, hydrocarbon group.

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