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2006-09-17 News Release

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Durable polyurethane foams for versatile furniture

Versatility of durable, high performance polyurethane foams from Bayer MaterialScience has led to constant improvements in seating comfort over the last few decades.

Flexible foams are used in a great number of everyday products. These foams can be custom tailored in a wide range of hardnesses, from super soft to rigid.

Polyurethanes are used primarily in the automotive, construction and electrical/electronics industries, but also in a number of specialty applications: wheels and tires for forklift trucks, for example, are made from the high-performance polyurethane elastomer, Vulkollan*, from Bayer MaterialScience. The range of application for polyurethane is almost unlimited: high-grade mattresses, upholstered furniture, car seats, insulation for refrigerators, car bumpers and leisure shoes, to mention just a few. And other new applications are opening up all the time.

Find Information and Suppliers of polyurethane foams.

Stokke Peel* is specially designed for relaxation.Click Go for larger image. photo: BMS

The luxurious “Peel”* armchair from the Norwegian furniture manufacturer Stokke, for example, is made from Bayfit* polyurethane flexible molded foam, which allows a design as animated as it is intricate and provides a high degree of comfort. “The cushioning characteristics of Bayfit are outstanding and can be adjusted from resilient to viscoelastic to produce a wide range of different sitting sensations,” explained Dr Dagmar Ulbrich, a Bayfit expert at Bayer MaterialScience. “And don’t forget – it’s also a molded foam, which is given its final shape during the actual manufacturing process.”

Unlike slabstock foams, which are best suited to quite simple shapes, there is no need for subsequent trimming. The entire production process for the “Peel” foam molding thus takes no more than four to five minutes. An enormously cost-efficient process allowing rapid production cycles.

The newer areas of application of viscoelastic foams used in medical mattresses and, increasingly or the use of special foams in technical and handicraft applications, for example in sanding blocks, painters' rollers or speakers, are also increasingly becoming state of the art.

A development team from Bayer Material Science, Puren and Siemens had the same vision. So they got together and turned vision into reality: purSonic®.

At the heart of purSonic sound technology is a thin soundboard produced from a special polyurethane material made of the Bayer MaterialScience products, Desmophen* and Desmodur*. The 6-8 mm thick loudspeaker boards are simply integrated into the walls, ceiling or floor, covered over with plaster, wallpaper or tiles and – hey presto – the music comes out of the room!

Bending-wave vibrations that turn the entire speaker surface into a soundboard are generated through a special amplifier system and small oscillating coils on the back of the purSonic boards. The benefit of this technology, which is based on a Siemens patent, is that the sound is emitted at angles four times greater than those from traditional speakers, so that it travels throughout the entire room.

* Vulkollan, Bayfit, Desmophen and Desmodur are registered trademarks of Bayer MaterialScience. Stokke Peel* is a registered trademark of Stokke.

Find information about Bayer Group.

Read a recent press release about - Bayer MaterialScience materials were used in close cooperation with 3M on the application development of a self-luminous automotive license plate.

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