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2006-11-13 News Release

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Organic chemicals compound flame retardant finish

New fatliquoring active ingredient chemicals combination is a flame retardant leather finishing treatment for aircraft and automotive construction.

Trumpler GmbH & Co. KG of Worms, Germany, has developed a fatliquoring agent known as Truposol* FRF to provide leather for use in aircraft and cars with a flame-retardant finish. What’s more, the new product is halogen-free and low-fogging. The preparation is based on a flame retardant from the Disflamoll** range manufactured by the LANXESS chemicals group. It consists of an organic phosphorus compound that reduces the fire risk by inhibiting the combustion process and slowing down, or in some cases even preventing, the spread of fire.

Find Information and Suppliers of flame retardant chemicals.

Otto Mauerer, an expert in flame retardants in LANXESS’s Functional Chemicals business unit, has been involved in the development of the product right from the start: “We are proud that our idea has evolved into a commercial-grade product. Our flame retardant had already proved effective in other applications and so we were sure that it could also be used successfully in the leather industry.” For trial purposes, Trumpler incorporated the flame retardant in fatliquoring preparations which were then used to treat leather. “We subsequently carried out various fire tests on numerous leather specimens with and without Disflamoll in our Applications Development department to see how effective the flame protection was,” says Mauerer. “The tests we used included the small flame test according to DIN 4102, Part 1.” This involved exposing the leather specimens to a two-centimeter-high pilot flame for 15 seconds. The specimens treated with fatliquoring agent based on Disflamoll displayed the best fire behavior, with little damage to the material and no afterglow.

Fatliquoring agent for flame retardant leather. Click Go for High resolution image. photo: Lanxess AG

Leather samples were appraised after a fire test: The best measurable result was obtained with the specimen treated with fatliquoring agent based on the LANXESS flame retardant Disflamoll. -> ->

Lightfast Truposol FRF can be used for the obligatory fatliquoring in the wet finishing process, thereby simultaneously providing the leather with a flame-retardant finish without any extra work or the need for any chemicals. Based on environment-friendly, renewable raw materials, the fatliquoring agent is free of antimony and halogen compounds and improves the penetration of the fatliquor and the insulation of the fibers. Exhaustion of the fatliquoring floats is excellent, ensuring low COD values. Leather treated with Truposol FRF has good softness and fullness coupled with a pleasant, silky surface touch. For aircraft applications, the fatliquoring preparation must be combined with other inorganic flame retardants in order to comply with the aircraft standard FAR 25.853, which stipulates that the material must be self-extinguishing within 15 seconds after flame impingement by means of a kerosene burner for one minute. The flames must be no more than 15 centimeters high.

Phosphorus compounds form an indipensable component in numerous chemical and technical processes. Lanxess Phosphorus Chemicals has a comprehensive portfolio of phosphorus based products suited for a broad range of applications. Our competence and the quality of our products are built upon years of experience in the development and production of phosphorus chemicals.

Disflamoll is used primarily in plastics and rubbers, e.g. in numerous articles based on polyvinylchloride (PVC), phenolic resin, polyurethane, cellulose acetobutyrate and acetopropionate, polymethylmethacrylate (PMMA), polystyrene (PS), natural rubber, styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR) and chloroprene rubber (CR). The flame retardant is highly suitable for use in areas where stringent fire protection regulations apply, such as the mining and construction industries. The flame retardants from LANXESS’s Disflamoll and Levagard ranges are also effective on organic substrates and for the flame-retardant treatment of aqueous polymer dispersions that are processed into foam products or coatings. Find information on the range of flame retardants from LANXESS phosphorus chemicals.

At the recent ACLE 2006, which was held in Shanghai from September 5 to 7, LANXESS exhibited a comprehensive range of products for the leather industry.

* Truposol is a registered trademark of Trumpler GmbH & Co. KG. TRUMPLER International produce a wide range of chemicals for the leather industry.

** Disflamoll and Levagard are registered trademarks of Lanxess AG.

Find information about Lanxess AG.

Read a recent press release from Lanxess about - Renamed Tanatex Chemicals BV, a textile processing chemicals business, to be operated by Dutch investor Egeria and TPC management jointly.

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