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New BASF high performance plastic

https://www.chemnet.com   Aug 15,2007 BASF
Effectively immediately, BASF is adding a third type of polyarylsulfone to the two existing materials Ultrason® S (PSU) and Ultrason E (PESU). This new family member is Ultrason P, a polyphenylsulfone (PPSU). The first grade of the new product line is called Ultrason P 3010 and it is already available to customers now.

The material Ultrason P combines the high melting temperature of Ultrason E with the low water absorption of Ultrason S, while also displaying high chemical resistance. Its good notched-impact resistance is of particular significance since most amorphous high-performance plastics are notch-sensitive and can break at notches under impact stress. This property also becomes evident when the so-called Charpy notched impact strength is measured: Ultrason P achieves a value that is almost ten times greater than that of other amorphous high-temperature materials. It also lends itself much better to being sterilized with hot steam than other plastics of this class. Even when exposed to a combination of strong cleansers and disinfectants as well as high heat, Ultrason P remains unharmed, withstanding up to 2000 hot-steam cycles without problems. On top of it all, its inherent fire resistance is yet another plus point.

“With Ultrason P, we are expanding our range of high-performance plastics and penetrating markets that were hardly accessible with the materials we had so far,” explains Matthias Dietrich, head of the global business for Ultrason. "The production of this plastic in the requisite high quality is so complex that only a few companies in the world are in a position to manufacture it.”
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