Cytec's technical presentations at the American Coatings Show Conference:

• UV Curable PUDs: VOC Compliant, High Performance Solutions for Wood Coating

• Waterbased Coatings with Improved Resistance Properties

• New Polyester Resin Technology for Dull and Semi-Matte Powder Coatings

• A New APE Free Sulfosuccinate Primary Emulsifier for Acrylic Latex Paints

Abstracts

UV Curable PUDs: VOC Compliant, High Performance Solutions for Wood Coating
Monday, April 12
3:00 p.m. – 3:30 p.m.
Presented by: Jonathan Shaw, Applications Technology Lead, UV/EB Curable Resins & Additives

Energy curable (UV/EB) coatings have been a staple in wood coatings for some time. The ability to roll coat flat wood substrates using 100% solids energy curable coatings has helped manufacturers meet stringent regulations for chemicals and VOCs and produce durable, quality finishes with excellent appearance. However, for contoured substrates requiring spray applied coatings, such as cabinet doors, it has been a challenge to formulate suitable energy curable coatings without resorting to the use of solvents which increases the coatings VOC, or relying heavily on diluents, which may reduce the performance and aesthetics of the coating. Developing energy curable resins for the wood coatings industry that improve the lifetime, reduce the maintenance and keep the aesthetic appearance of wood is still a challenge for resin suppliers today.

In this paper we show how new high performance water-based UV curable polyurethane dispersions can address all of these requirements for both indoor and outdoor spray and curtain wood coating applications. Suitably designed novel structures now combine low viscosity, outstanding stain, chemical and scratch resistance with high reactivity in both clear and pigmented systems. Furthermore there is no need for co-solvents. Some of the polymer structures also have excellent weathering properties.

The development and performance of a new 1K and 2K binders for wood, concrete and plastic coatings applications will be presented. This new technology provides the opportunity to deliver the desired balance of early hardness development, chemical resistance and appearance for flooring applications. The low VOC capability of these systems opens up the use in a wide variety of interior applications where low solvent odor is so important. The 2K technology holds significant promise for a variety or rigid and flexible plastic applications.

A new polyester resin technology has been commercialized that provides an effective route to manufacture matte powder coatings and offers advantages in processing and gloss consistency. This patent-pending technology provides a new solution to obtain 60° gloss results in the semi-matte and near dull matte ranges for both standard and super durable powder coatings. The new resin binder systems are combined with the powder coating ingredients in a single extrusion versus the typical use of either matting agents or dry blend technology using previously manufactured powders of differing reactivity. This paper summarizes results confirming the reliable and attractive matte powder finishes that may be achieved through application of this new technology.

This paper will focus on the evaluation of a new APE free sulfosuccinate surfactant versus current industry standards as a primary emulsifier in the preparation of acrylic, vinyl-acrylic and styrene acrylic latex systems. The influence of the surfactant on polymer solids content, particle size, emulsion viscosity and latex aesthetics will be highlighted. Additionally, the impact of the surfactant on reaction kinetics, conversion, latex grit and coagulum and overall emulsion stability will be presented. Select latexes will be formulated into paints and the influence of the surfactant system on paint aesthetics, rheology, open-time and freeze thaw stability presented. Specific information will also be provided on the new product’s toxicological and regulatory profile as relevant to increasingly stringent governmental regulations and public scrutiny.