NEW SOLVENT-FREE, ONE-COMPONENT POLYURETHANE DISPERSIONS

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NEW SOLVENT-FREE, ONE-COMPONENT POLYURETHANE DISPERSIONS
13 August 2007 - Bayer MaterialScience AG

The Coatings, Adhesives, Sealants Business Unit of Bayer MaterialScience AG has extended its range of solvent-free products with the addition of two Bayhydrol polyurethane dispersions specially developed for the coating of plastics. The new additions are Bayhydrol XP 2606 and the more flexible variant Bayhydrol XP 2648. These two products can be used to formulate flexible coatings having a good property level when used as a filler, basecoat or topcoat. The very rapid drying of both products enables fast processes in industrial applications.

Bayhydrol XP 2606 exhibits good cold flex resistance and is particularly well suited for the coating of PVC substrates. Bayhydrol XP 2648 is even more flexible and offers good adhesion to other difficult substrates such as polyamide. With the addition of crosslinking components such as low-viscosity Desmodur grades, good adhesion to even polystyrene surfaces can be achieved. Hydrophilized Bayhydur grades, which can be easily incorporated into waterborne systems, are suitable combination partners for the formulation of high-gloss, two-component polyurethane coatings. The chemical structure of these Bayhydrol grades significantly extends the typical pot life of two-component systems, resulting in a wider than normal processing window for these systems.

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About: Bayer MaterialScience AG
Bayer Corporation, headquartered in Pittsburgh, is part of the worldwide Bayer Group, an international health care, nutrition and innovative materials group based in Leverkusen, Germany. Bayer employs 23,300 in North America with net North American sales of 8.8 billion euros in 2003. Bayer’s three operating business areas – HealthCare, CropScience and MaterialScience, improve people’s lives through a broad range of essential products that help diagnose and treat diseases, protect crops and advance automobile safety and durability.

Bayer MaterialScience AG is one of the world's largest producers of polymers and high-performance plastics. The main customers for Its innovative developments in coatings, adhesives, insulating materials and sealants, polycarbonates and polyurethanes are the automotive and construction industries, the electrical/electronics segment and manufacturers of sports and leisure goods, packaging, and medical devices.

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