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:
Jun. 22, 2004
Filed:
Jan. 24, 2002
Adrianus Jacobus Wittebrood, Velserbroek, NL;
Corus Aluminium Walzprodukte GmbH, Koblenz, DE;
Abstract
The invention relates to a composite sheet material for brazing, the composite sheet material having a structure comprising an aluminium or aluminium alloy substrate on at least one side coupled to a layer comprising a polyolefin/acrylic acid copolymer as a carrier filled with brazing flux material, and optionally also with a metal powder, in an amount sufficient to achieve brazing. The invention further relates to a method of manufacturing composite sheet material for brazing, which method comprises the steps (a) mixing the polyolefin/acrylic acid copolymer with the brazing flux material and/or metal powder, and (b) applying to at least one surface of the metal substrate a mixture of said copolymer filled with the brazing flux material and/or metal powder, in an amount sufficient to achieve subsequent brazing.