| Résumé : |
The author has developed an acrylic hybrid binder technology platform, which achieves VOC-compliant performance.
Rohm and Haas has been a pioneer in the development of acrylic chemistry for the architectural coatings market since the introduction of the first all-acrylic binder in 1953. However, the high gloss segment of this market has proved difficult to penetrate, as solvent-based alkyd technology provides excellent application and initial appearance properties. Implementation of Phase II of the EU Deco Paint Directive 2004/42/EC restricting VOC emissions on January 1, 2010 has provided an extra incentive to make improvements to the previous acrylic technology. Rohm and Haas has recently completed a fundamental research programme, resulting in a new acrylic hybrid binder technology platform, Hydrotech. To achieve the new level of VOC-compliant performance, an additional ambient-curing component has been incorporated into the acrylic dispersion's composition. This additional functionality delivers improvements in the open time, gloss, flow and levelling, whithout compromising the good film properties of the pure acrylic, such as exterior durability, hardness and low yellowing. |
Aller sur edunet
Accueil
Binder technology for low VOCs in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4528 (09/2008)
