Process for the preparation of polyol polymer dispersions

Details Process for the preparation of polyol polymer dispersions Process for the preparation of polyol polymer dispersions

C - Chemistry, Metallurgy

08

G

C08G 65/30 (2006.01) C08G 18/48 (2006.01) C08G 65/26 (2006.01)

Patent

CA 2578826

Polymer polyols and polymer-modified polyols having substantially no transition metal content in the polyol continuous phase may be prepared from encapsulative double metal cyanide complex-catalyzed polyoxyalkylene polyether base polyols without substantial removal of double metal cyanide complex catalyst residues from the base polyol and subsequent in situ polymerization of one or more polymerizable monomers.

On peut préparer des polyols et des polyols modifiés ne contenant pour ainsi dire pas de métaux de transition à partir de polyols à base de polyoxyalkylène-polyéther catalysés par un complexe de cyanure à deux métaux encapsulatif sans retirer de manière substantielle les résidus du catalyseur en question du polyol, avec polymérisation subséquente in situ d'un monomère polymérisable ou plus.

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