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Ciba introduces "NEAT" light stabilizers for a new standard of UV protection in waterborne coatings

Published on 2007-05-07. Author : SpecialChem

Ciba's Novel Encapsulated Additives Technology (NEAT) for coatings stabilization for the first time enables the equivalent level of protection in waterborne coatings to that attained with high-performance stabilizers in solventborne systems. To be introduced at the European Coatings Show in Nuremberg (May 8-10, Stand 650 in Hall 4), NEAT allows hydrophobic light stabilizers to be easily incorporated in waterborne paints.

"Our NEAT dispersions are a technological leap forward that has been long awaited by the industry," says Hermann Angerer, Global Head of Ciba's Coating Effects Segment. "Waterborne coatings are increasingly in demand as a result of ever more stringent solvent emission regulations. The new technology allows a previously unattained standard of coatings stabilization in waterborne applications, combining increased durability with simple incorporation."

The first products to be launched in the NEAT range are hindered amine light stabilizers (HALS) and UV absorbers. Ciba® TINUVIN® DW low-viscosity aqueous stabilizer dispersions can be stored for prolonged periods without sedimentation, are easy to dispense and meter, and can be simply stirred into paint and coatings without the addition of co-solvents.

TINUVIN® DW dispersions are suitable for wood coatings, for architectural and construction applications, for plastics and glass coatings, for general industrial paints and for transportation coatings. The range is designed to allow combination of the products with one another by simple mixing, allowing formulators high flexibility in the production of blends tailor-made to give the best results in specific applications.

Coatings for outdoor applications are prone to property alteration and damage induced by heat, light, humidity, pollutants and other factors. Ultraviolet radiation causes degradation of pigments and binders through photo-oxidation. Light stabilizers significantly reduce the photo-oxidation degradation process: UV absorbers prevent degradation of coatings and base coats or substrates beneath top coats by filtering harmful UV light and converting it into harmless levels of heat; hindered amine light stabilizers (HALS) act as radical scavengers, inhibiting the breakdown of binders through photo-oxidation. When used in combination, HALS and UV absorbers often show synergistic effects that can significantly improve durability, thereby prolonging the service life and reducing maintenance of coatings.

Media briefing at the European Coatings Show takes place on May 9, 2007 at 15.00 in the Helsinki Room, Congress Center Nürnberg (CCN) Ost in the Nuremberg fairgrounds.

Ciba (SWX: CIBN, NYSE: CSB) is a leading global company dedicated to producing high-value effects for its customers' products. We strive to be the partner of choice for our customers, offering them innovative products and one-stop expert service. We create effects that improve the quality of life - adding performance, protection, color and strength to plastics, paper, automobiles, buildings, home and personal care products and much more. Ciba is active in more than 120 countries around the world and is committed to be a leader in its chosen markets. In 2006, the Company's continued operations generated sales of CHF 6.4 billion and invested CHF 270 million in R&D.

Source: Ciba


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