Water-borne one-component self-crosslinking polymer dispersions with high chemical resistance properties meeting Ikea R2

 
Increasing concerns about the sustainability of solventborne coatings, combined with a growing awareness of all factors contributing to the carbon footprint related to the coating of furniture, is causing a demand for one-component coating systems curing at low temperature conditions without concessions to the performance of the coating systemIndustry standards that are commonly used in furniture coatings are DIN 68861 and the IKEA IOS MAT 0066, are challenging for a 1K WB acrylic system to achieve. Especially the resistance against coffee and 48% ethanol required in the IKEA IOS MAT 0066, are hard to reach for a low gloss one-component water-borne acrylic paint. By using a combination of crosslinking chemistries and particle morphology, a novel WB acrylic resin can be developed with superior resistance to both coffee and ethanol. These novel binders have significantly increased crosslink density that allowed us to formulate pigmented matt coatings that comply with the IKEA R2 standard. Furthermore it will also be shown that these resins can be formulated with a high bio-based carbon content above 30% without diminishing the final performance properties.