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. 07, 2016
Filed:
Nov. 13, 2014
Basf SE, Ludwigshafen, 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
The use of an aqueous polyurethane dispersion adhesive is described for producing biodisintegratable composite foils where at least two substrates are adhesive-bonded to one another with use of the polyurethane dispersion adhesive, where at least one of the substrates is a biodisintegrable polymer foil. At least 60% by weight of the polyurethane is composed of diisocyanates, polyesterdiols, and at least one bifunctional carboxylic acid selected from dihydroxycarboxylic acids and diaminocarboxylic acids.