BAYER POLYMERS' RESEARCHERS DISCUSS DIETHYLMALONATE BLOCKED ISOCYANATES AS CROSSLINKERS FOR LOW TEMPERATURE CURE POWDER COATINGS

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BAYER POLYMERS' RESEARCHERS DISCUSS DIETHYLMALONATE BLOCKED ISOCYANATES AS CROSSLINKERS FOR LOW TEMPERATURE CURE POWDER COATINGS
18 February 2004 - Bayer MaterialScience AG

Researchers with Bayer Polymers will present a paper discussing the use of a newly designed solid diethylmalonate (DEM) blocked isocyanates as crosslinker for low temperature cure powder coatings.

The paper is entitled Diethylmalonate Blocked Isocyanates As Crosslinkers For Low Temperature Cure Powder Coatings.

The researchers will discuss the use of diethylmalonate as a blocking agent for powder coatings crosslinkers and its application and utility in various powder chemistries. A key part for the development of these materials is a comprehensive knowledge of the blocking reaction, which will be presented in details with supporting Nuclear Magnetic Resonance (NMR) spectroscopy and Gel Permeation Chromatography (GPC) data.

'There is growing interest to lower the cure temperature of powder coatings and expand the application of this technology to heat sensitive substrates, but there is also even a higher desire to speed up the coatings process,' said Fäcke. 'For the first time a solid DEM based crosslinker, has been successfully designed and developed, which has significant application potential in the powder coatings field.'

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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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