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Bayer Presents Paper on Diethylmalonate Blocked Isocyanates As Crosslinkers in Low Temp Cure Powder Coats

Published on 2004-02-23. Author : SpecialChem

NEW ORLEANS, Feb. 18, 2004 - 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.

Thomas Fäcke, Ramesh Subramanian, Michael Dvorchak and Sharon Feng, Bayer Polymers, LLC, will present their paper Feb. 18, 2:15 p.m., here at the International Waterborne, High-Solids, and Powder Coatings Symposium.

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."

For more information on polyurethane powder coatings or a copy of this technical paper, call 1-800-662-2927 or visit www.BayerPolymers.com.

With 23,000 employees at 120 sites around the world and 2002 sales of 10.8 billion euros, Bayer Polymers is a leader in the global industry of performance polymers. The company's materials and solutions are the backbone of modern life, serving primarily the automotive, construction, information technology, appliance, furniture as well as sports and leisure industries. As a member of the global Bayer Group, Bayer Polymers benefits from a wealth of resources while enjoying the flexibility to focus on its primary objective: to be the partner of choice in polymer materials.

Bayer Corporation, headquartered in Pittsburgh, is the U.S. holding company of the worldwide Bayer Group, an international health care and chemicals group based in Leverkusen, Germany. Bayer employs 24,600 in North America with net North American sales of 8.9 billion euros in 2002. Our four operating business areas - HealthCare, CropScience, Polymers and Chemicals - produce a broad range of products that help diagnose and treat diseases, purify water, preserve local landmarks, protect crops, advance automobile safety and durability and improve people's lives.

Source: Bayer Corp.

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