Production of cellular plastics by the polyisocyanate...

Details Production of cellular plastics by the polyisocyanate... Production of cellular plastics by the polyisocyanate...

C - Chemistry, Metallurgy

08

G

C08G 18/40 (2006.01) C08J 9/06 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2070157

O.Z. 0050/42472 Abstract of the Disclosure: A process for the production of cellular plastics by the polyisocyanate polyaddition process, by reacting a) an organic and/or modified organic polyisocyanate with b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired, c) a low-molecular-weight chain extender and/or cross- linking agent, in the presence of d) a blowing agent e) a catalyst and f) assistants and/or additives, wherein the blowing agent (d) used d1) a low-boiling, fluorinated or perfluorinated tertiary alkylamine, or a mixture of (d1) and at least one physical or chemical blowing agent (d2) which is different from (d1), and blowing agent-containing emulsions comprising the abovementioned blowing agent (d1) or a blowing agent mixture of (d1) and (d2) and the starting components (a), (b), (c) or (b) and (c).

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