Profile extrusion of plastic structures with continuous fibers is slow and expensive. Boissonnat et al. have improved this process by first preparing a tape from a mixture of continuous parallel reinforcing fibers such glass and meltable thermoplastic fibers. The meltable binder may be a poly olefin such as polyethylene or polypropylene or a polyester such as polyethylene terephthalate or polybutylene terephthalate. The tape is joined with a second extruded polyolefin or polyvinyl chloride resin stream and shaped into the final profile with a die.
Roger D. Corneliussen is Professor Emeritus of Materials Engineering, Drexel University, in Philadelphia, Pennsylvania USA. He is editor of Maro Polymer Alerts and the Maro Polymer website (www.maropolymeronline.com). He has been active in SPE since 1962 and has served on the board of the Philadelphia Section and as SPE Councilor. For Maro Patent Alerts, he reviews all U.S. Patents weekly, makes links to the polymer-related patents, and sends the links daily to subscribers. These patent abstracts are based on the weekly selection process. To sample Maro Patent Alerts, email a request to email@example.com. The patents described here are selected on the basis of their novelty; selection does not affirm or imply the accuracy of a patent or its practical applicability.
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|Title Annotation:||industry PATENTS|
|Article Type:||Brief article|
|Date:||Nov 1, 2008|
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