C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/26 (2006.01) B01J 27/26 (2006.01)
Patent
CA 2391924
The invention relates to a method for producing polyether polyols with dense molar mass distribution and low viscosity by polyaddition of alkylene oxides to starter compounds having active hydrogen atoms by means of DMC catalysis. The inventive method is further characterized by a substantially reduced induction period.
L'invention concerne un procédé de fabrication de polyéther polyols ayant une répartition de la masse molaire dense et une faible viscosité, par polyaddition d'oxydes d'alkylène à des composés initiateurs comportant des atomes d'hydrogène actifs faisant intervenir une catalyse au cyanure bimétallique, ledit procédé étant caractérisé par une réduction importante de la durée d'induction.
Betz Werner
Dietrich Manfred
Ehlers Stephan
Gupta Pramod
Hofmann Jorg
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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