An introduction to isocyanates in coatings, covering types, properties, reactivity and key formulation considerations for self-leveling urethane systems.
The new resins have a renewable carbon content, can be formulated and used without hazardous ingredients found in most competitive products, and were developed to have efficient crosslinking with environmentally compliant carbodiimide-type crosslinkers.
This article addresses some of the key challenges associated with formulating resins at high solids levels and outlines the potential for Michael addition chemistry to raise coatings solids levels to new heights.
Recent energy-curable resin developments respond to the increasing demand for suitable oligomers for coatings on plastics in different segments such as consumer electronics, cosmetic packaging and automotive interiors for different specifications and aesthetic requirements.
The unique hybrid chemistry of oxidizable phenolic urethanes combines the drying property of fast-drying oleoresinous vehicles, the chemical resistance of phenolics, and the toughness of urethanes.
Waterborne OMU has all the advantages of solventborne OMU including inherent mar resistance, chemical resistance and amber film color, while overcoming the shortcomings of low-VOC solventborne OMU including slow dry and softer film.
In automotive refinishing, this technology offers end users a drop-in solution that can accelerate cycle time, help improve profits and reduce material waste – all while providing an enhanced environmental, health and safety profile.
