Inventive Routes for the Preparation of waterborne Acrylic Polyols for 2K PU Protective Topcoats

Waterborne Technologies Because of their lower environmental impact, both acrylic polyol dispersions and hydroxyl-functional (OH-functional) emulsions are state-of-the-art technologies for high-performance 2K WB industrial coatings applications. Waterborne APO Secondary Dispersions Glycidyl neodecanoate (Cardura™ glycidyl ester1) is a highly versatile building block containing a very reactive epoxy group, and a unique hydrophobic and highly branched tertiary substituted a-carbon structure (Figure 1). During this process, two reactions occur simultaneously: a conventional radical polymerization of the monomers, and the reaction of the glycidyl ester with some acrylic or methacrylic acid added to the monomer mixture, which grafts the glycidyl neodecanoate to the acrylic polyol (Figure 3). [...]after application of the coatings, it facilitates the film formation process, improves the appearance of the final coatings, and reduces the film defects.