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:
Mar. 05, 2002
Filed:
Nov. 14, 2000
Christopher M. Edwards, Midland, MI (US);
Edward L. D'Hooghe, Hulst, NL;
Hani Farah, Sugarland, TX (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
The present invention is an article comprising a fiber-reinforced engineering thermoplastic polyurethane composite welded to a thermoplastic part by way of an interlayer containing a dispersion of a ferromagnetic material and a method for preparing the same. Alternatively, the composite or the thermoplastic part or both may contain the ferromagnetic material. A tight bond is created by subjecting the ferromagnetic material to a radio-frequency magnetic field to generate heat, which locally melts composite and the thermoplastic part, then allowing the subjected areas to cool. The invention is particular useful for the preparation of window frames.