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:
Sep. 11, 2007
Filed:
Aug. 15, 2003
Matthias Wintermantel, Köln, DE;
Hermann Perrey, Krefeld, DE;
Christian Wamprecht, Neuss, DE;
Walter Meckel, Düsseldorf, DE;
Jürgen Ramthun, Bergisch Gladbach, DE;
Matthias Wintermantel, Köln, DE;
Hermann Perrey, Krefeld, DE;
Christian Wamprecht, Neuss, DE;
Walter Meckel, Düsseldorf, DE;
Jürgen Ramthun, Bergisch Gladbach, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
Reactive polyurethane hotmelts comprising crystallizing polyesterpolyols based on fumaric acid and 1,6-hexanediol. These hotmelts exhibit good pressure-sensitive adhesive (PSA) properties over a very broad temperature range. The reactive polyurethane hotmelts are prepared by mixing a polyol mixture containing at least on crystallizing polyesterpolyol with an excess of polyisocyanates.