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:
Apr. 06, 2010
Filed:
Oct. 06, 2005
Helmut-werner Heuer, Krefeld, DE;
Rolf Wehrmann, Krefeld, DE;
Sylvia Braun, Duisburg, DE;
Claus Rüdiger, Krefeld, DE;
Marco Roelofs, Krefeld, DE;
Wolfgang Nising, Sankt Augustin, DE;
Siegfried Anders, Köln, DE;
Jürgen Röhner, Köln, DE;
Rüdiger Gorny, Moon Township, PA (US);
Ralf Hufen, Duisburg, DE;
Helmut-Werner Heuer, Krefeld, DE;
Rolf Wehrmann, Krefeld, DE;
Sylvia Braun, Duisburg, DE;
Claus Rüdiger, Krefeld, DE;
Marco Roelofs, Krefeld, DE;
Wolfgang Nising, Sankt Augustin, DE;
Siegfried Anders, Köln, DE;
Jürgen Röhner, Köln, DE;
Rüdiger Gorny, Moon Township, PA (US);
Ralf Hufen, Duisburg, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1) or (1), in which O-D-O and O-E-O independently denote a diphenolate group, -D- and -E- independently denote an aromatic group having 6 to 40 carbon atoms, k is a whole number from 1 to 1500, o stands for numbers from 1 to 1500, and m is z/o and n is (o-z)/o wherein z is 0 to o.