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ABSTRACT:

Bringing Michael Addition technology to the waterborne coatings domain

In the coatings industry lower VOC has been a drive for innovation since the early 90’s. This has resulted into a dual approach for high end industrial applications. With one part of the market focusing on high solid solvent borne applications and another approach being two component water borne polyurethanes.

While both solutions have their merit in reducing paint VOC, 2K water borne coatings have had to address some intrinsic issues which have caused a slow adoption rate.

One of the key issues identified in working with 2K water borne systems is the so-called issue of popping, which results from the reaction of isocyanate with water. This results in bad appearance in higher layer-thickness and negative effects on corrosion performance amongst others. Another drawback of these systems is the limited pot-life after mixing the two components, as this causes paint waste and inconsistent quality at different points in time. Typically isocyanates might be difficult to incorporate into component A and may cause allergic reaction and respiratory irritation.

We are addressing some of these key issues by bringing our Michael Addition technology to the waterborne coatings domain. 

BIOGRAPHY:

Gottfried Fürpaß joined allnex in 2006 as a Technical Service & Development Manager EMEA in charge of binders mainly dedicated to topcoat applications in the fields of Vehicle Refinish and General Industry. Currently he is in the role of a Senior Lab Leader for the application groups supporting the development and market introduction of new primer and topcoat technologies for Industrial Coatings. Gottfried holds a PhD in Chemistry from the University of Technology of Graz, Austria.