The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2001
Filed:
Apr. 05, 1999
Juergen Deinert, Duderstadt, DE;
Maximilian Segl, Gieboldehausen, DE;
Leonhard Trutwig, Duderstadt, DE;
Other;
Abstract
A method and an apparatus for the production of continuous composite materials from unidirectional reinforcing fibers and from thermoplastics, the longitudinally moved bundle of parallel continuous reinforcing fibers being preheated and impregnated with a continuously supplied thermoplastic melt, whereupon the continuous composite material thus formed is cooled. In order to improve the impregnating operation, it is proposed, according to the invention, that the thermoplastic melt form an elongate impregnation stage, into which mechanical energy is introduced continuously in order to reduce the melt viscosity, and that the preheated fiber bundle be drawn continuously through the zone of reduced melt viscosity.