Broad new line of PBT polyesters debuts.The new name in PBT PBT Provider Backbone Transport (networking technology adding determinism to ethernet) PBT Polybutylene Terephthalate PBT Profit Before Tax PBT Paper Based Test (education) polyesters in the U.S. is DuPont Co., Wilmington, Del. The company's Engineering Polymers unit is launching 11 new grades for electrical/electronic and automotive applications and is bringing the Crastin trade name from Europe to North America North America, third largest continent (1990 est. pop. 365,000,000), c.9,400,000 sq mi (24,346,000 sq km), the northern of the two continents of the Western Hemisphere. . DuPont has produced PBT in Europe since 1993, when it acquired the business from Ciba-Geigy Corp. DuPont has marketed a limited range of 10 PBT grades in North America under the Rynite banner since 1990. These products are now part of the Crastin line, while Rynite henceforth refers only to PETs. The Crastin roster includes seven new halogenated halogenated pertaining to a substance to which a halogen is added. halogenated salicylanilides see rafoxanide, clioxanide. flame-retardant grades, several of which are impact-modified, and proprietary PBT alloys formulated for improved surface properties and dimensional stability dimensional stability, n See stability, dimensional. . DuPont also offers "super-tough" versions with "no break" notched-Izod values. All but one of the 21 grades are intended mainly for injection molding injection molding n. A manufacturing process for forming objects, as of plastic or metal, by heating the molding material to a fluid state and injecting it into a mold. . GLOBAL SUPPLY BASE DuPont plans to use its global resources to pursue a flexible approach to supplying PBT customers according to regional market conditions. For North American North American named after North America. North American blastomycosis see North American blastomycosis. North American cattle tick see boophilusannulatus. buyers, DuPont can use PBT production at Parkersburg, W.Va., as well as sites in Luxembourg and Belgium and a new 66-million-lb/yr plant slated to come on line in Germany in mid-1996. Dave Trerotola, marketing manager for polyester resins, says the Crastin materials, whether produced in the U.S. or in Europe, will be price-competitive with other PBT resins. Besides direct sales, DuPont will distribute Crastin through the General Polymers Div. of Ashland Chemical Co., Columbus, Ohio, and M.A. Hanna Resin Distribution, Cleveland. [TABULAR DATA OMITTED] |
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