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. 08, 2025
Filed:
May. 21, 2021
Basf SE, Ludwigshafen am Rhein, DE;
Ulrike Licht, Ludwigshafen am Rhein, DE;
Oliver Hartz, Ludwigshafen am Rhein, DE;
Lionel Gehringer, Ludwigshafen am Rhein, DE;
Sabine Bociek, Ludwigshafen am Rhein, DE;
Erich Ries, Ludwigshafen am Rhein, DE;
Juergen Ahlers, Gross-Rohrheim, DE;
Stephan Dohmen, Lemfoerde, DE;
BASF SE, Ludwigshafen Am Rhein, DE;
Abstract
A method is described for debonding a bonded article. The bonded article comprises at least two components which are bonded to one another by means of a polyurethane adhesive selected from aqueous polyurethane dispersion adhesives and polyurethane hotmelt adhesives. At least one of the components is a thermoplastic polyurethane. The components are debonded by treatment with an aqueous surfactant composition at elevated temperatures.