Abstract: The invention discloses a method for preparation of an acetoacetylated polyol by reaction of a polyol with deketene in the presence of a base and in the absence of a solvent.

Abstract: The invention discloses the use of a short path evaporator for decolorization of colorized acetoacetylated ethylene glycol.

Abstract: The invention discloses a method for preparation of acetoacetate ester compounds with amino alcohol catalysts which are themselves diketenized in the course of the diketenization reaction; and subsequent polymerization of these acetoacetate ester compounds with e.g. acrylate compounds to provide resins, whereby the acetoacetylated amino alcohol catalyst partakes in the polymerization reaction.

Abstract: The invention discloses a method for preparation of an acetoacetylated polyol by reaction of a polyol with deketene in the presence of a base and in the absence of a solvent.

Abstract: The present invention relates to a resin composition that comprises an acetoacetate ester compound with at least two acetoacetate ester functional groups, an acrylate compound with at least two acrylate functional groups, and a tertiary amine curing catalyst. This resin composition acts as an isocyanate-free binder that is less toxic to the environment. The invention further discloses a method for preparation fiber reinforced parts comprising fibers and said resin composition as well as a method for the preparation of foundry molds for the casting industry, which is based on said binder.