Henkel Kommanditgesellschaft Auf Aktien

Cognis Deutschland Gmbh & Co. Kg

Cognis IP Management Gmbh

Ulrich Nagorny

Rainer Hoefer

Wolfgang Gress

Roland Gruetzmacher

Andreas Heidbreder

Herbert Fischer

Alfred Westfechtel

Paul Birnbrich

Ulrich Eicken

Hans-Josef Thomas

Manfred Gorzinski

Norbert Stork

Reinhard Bunte

Giorgio Sabbadini

Georg Bourscheidt

Birgit Hirschberger

Disclosed is a process for the preparation of emulsifiers E1 which are obtained by (a) reacting a polyol with propylene oxide or a mixture of ethylene oxide and propylene oxide, to give an intermediate Z1, (b) reacting the intermediate Z1 with epichlorohydrin, forming an intermediate Z2, (c) reacting the intermediate Z2 with an adduct of ethylene oxide or a mixture of ethylene oxide and propylene oxide, with a C1-C22 monoalcohol, provided that on average at least one epoxide function of the intermediate Z2 is reacted and on average at least one epoxide function originating from the intermediate Z2 is retained. Compounds E1 are suitable as emulsifiers for preparing aqueous emulsions or dispersions of epoxy resins.

Emulsifiers for epoxy resins

Water-based coating composition comprising: (a) from 0.5 to 90% by weight of at least one epoxy resin other than self-dispersing epoxy resins; (b) from 0.5 to 90% by weight of at least one (meth)acrylate of a polyol; (c) from 5.0 to 98.0% by weight of water; and (d) from 0.5 to 10% by weight of one or more dispersants; wherein the at least one (meth)acrylate comprises at least two (meth)acrylate groups per molecule, and wherein the Brookfield viscosity of the composition is less than 15000 mPas.

Water-based coating compositions containing epoxy resin(s) and (meth)acrylate(s), and methods of using the same

Water-based coating composition comprising: (a) from 0.5 to 90% by weight of at least one epoxy resin, wherein the epoxy resin is solid at 20&#xb0; C., and wherein the epoxy resin is self-dispersing in water; (b) from 0.5 to 90% by weight of at least one (meth)acrylate of a polyol; and (c) from 5.0 to 99.0% by weight of water; wherein the at least one (meth)acrylate comprises at least two (meth)acrylate groups per molecule, and wherein the Brookfield viscosity of the composition is less than 15000 mPas.

The invention relates to epoxy resin hardener compositions containing at least one mercaptan hardener and at least one metal salt of Ccarboxylic acids. These hardeners are distinguished in particular by the fact that catalyzed resins containing epoxy resins and the hardener compositions according to the invention give high-gloss molding compounds, more particularly coatings, after hardening by crosslinking.

Epoxy resin hardener compositions

A method for preparing a polyol useful in the formation of an isocyanate casting resin or coating composition is presented involving the reaction of an essentially C fatty acid mixture with a monofunctional alcohol to form a fatty acid ester mixture, forming a epoxidized fatty acid ester mixture from the fatty acid ester mixture, and reacting the epoxidized mixture with an aliphatic alcohol to form a polyol. The polyol can be further reacted with an isocyanate to form a casting resin or coating composition. The fatty acid mixture contains at least 80 percent oleic acid. Polyols prepared by this method provide good color quality and improved color stability during storage when used in the production of isocyanate casting resins and coating compositions.

Methods of preparing casting resins and coating compositions using polyols derived from high oleic acid content fatty acid mixtures

A process for producing coating compositions involving: (a) providing a reactive diluent, (b) providing an inert solvent, (c) providing a polymeric polyol, (d) providing an isocyanate, (e) reacting (a)-(d) in a reactive diluent comprising a ring opening product of a carboxylic acid ester epoxide with a dihycric or higher alcohol.

Fatty chemical polyalcohols as reagent thinners

Binder mixtures for stoving lacquers

Use of partial esters of oligoglycerols with fatty acids as pigment

A leveler coating composition comprising a water-dilutable polyurethane aqueous dispersion having a solids content of 10-50% by weight and a viscosity of 10-50,000 mPa.s; a process for manufacturing the coating; and a method for using it in automotive finishes.

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Hilden, Germany

Ulrich Nagorny