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:
Feb. 17, 2015
Filed:
Jul. 27, 2011
Cornelis Petrus Beyers, Altrip, DE;
Heiko Diehl, Mannheim, DE;
Stefan Dahmen, Freinsheim, DE;
Volker Kriegisch, Schonungen, DE;
Ulrike Licht, Mannheim, DE;
Axel Meyer, Heidelberg, DE;
Motonori Yamamoto, Mannheim, DE;
Cornelis Petrus Beyers, Altrip, DE;
Heiko Diehl, Mannheim, DE;
Stefan Dahmen, Freinsheim, DE;
Volker Kriegisch, Schonungen, DE;
Ulrike Licht, Mannheim, DE;
Axel Meyer, Heidelberg, DE;
Motonori Yamamoto, Mannheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A method for producing biodisintegratable composite foils with an aqueous polyurethane dispersion adhesive. The method involves adhesive-bonding a first substrate to a second substrate with use of the aqueous polyurethane dispersion adhesive. At least one of the first substrate and the second substrate is made of a biodisintegratable polymer foil, and at least 60% by weight of the polyurethane contains diisocyanates, polyesterdiols, and bifunctional carboxylic acids. The bifunctional carboxylic acids are dihydroxycarboxylic acids or diaminocarboxylic acids.