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2005-11-27 News Headlines

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Lanxess New Halogen-Free Flame Retardants for Plastics
and Aviation Use

Flame retardants for plastics and now for transparent coating systems that are halogen-free using high-grade wood in aviation for aircraft cabins.

Halogen-free flame retardants from LANXESS with transparent coatings using high-grade wood in aviation for aircraft cabins.

With Disflamoll® and Levagard™ flame retardants from Lanxess Deutschland GmbH, real wood veneers for aircraft cabins can now be coated with halogen-free transparent coating systems.

Although flame retardants for wood, plastics, elastomers and textiles already exist, until now there were none for transparent coating systems that were halogen-free. Lufthansa Technik AG, Hamburg, was looking for a way to fit flame-retardant high-grade wood veneers in luxury aircraft such as Boeing and Airbus that complied with the aviation standard FAR 25.853. This specifies that after one minute of contact with flames, the material must self-extinguish within 15 seconds. The height of the flames must not exceed 15 cm.

Using High-Grade Wood in Aviation The lounge of a Boeing Business Jet 2 - the real wood veneers of cabin fittings are coated with transparent coating systems. The LANXESS functional chemicals LevagardTM and Disflamoll® ensure halogen-free fire protection. Photo courtesy of LANXESS AG

And, consider the previous standard system with a TCEP-modified transparent coating consistently met fire protection requirements, Lufthansa Technik AG wished to deploy halogen-free systems in the future. Alfred Clouth Lackfabrik GmbH & Co of Offenbach, whose specialties include polishable, flame-retardant high-gloss varnish for wood, came up with just the right formulation to protect aircraft fittings in compliance with relevant standards. The glass fiber-reinforced honeycomb components were laminated with impregnated real wood veneer and coated with an aliphatic, highly crosslinked polyurethane coating. The LANXESS flame retardants from the Levagard and Disflamoll ranges use impregnation and a transparent multi-layer coating system to ensure halogen-free flame retardance.

As well as aviation, this type of coating is likely to be in demand for other applications too. The application potential for impregnations and coatings containing Disflamoll and Levagar ranges from furniture right through to treating construction lumber.

The Disflamoll product range consists of various halogen-free flame retardants with plasticizing properties. These products are ideally suited for flexible PVC, phenolic resin and synthetic rubbers. Disflamoll types also find use in thermoplastics such as PC/ABS, cellulose acetate and PUR foam.

LANXESS is a leading chemicals group with production sites and agencies all over the world: a global player in the fields of chemicals, plastics and rubber.

Find information about Lanxess.

LANXESS increases prices for technical rubber products Leverkusen – The Technical Rubber Products (TRP) Business Unit of LANXESS Deutschland GmbH increased its prices worldwide for its entire product range with effect from November 1, 2005 or the termination of a contract, whichever was the later. For the products Buna® EP (EPDM), Perbunan®, Krynac®, Baymod® N (NBR), Baypren® (CR), Therban® (HNBR), Levapren®, Levamelt® and Baymod® L (EVM) average prices have increased by between €0.10 and €0.50/kg, depending on the grade.

The reason for the current price rises is a significant increase in raw material and energy costs.

Disflamoll® and Levagard™ are recognized trademarks of LANXESS AG.



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