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:
Jul. 08, 2014
Filed:
May. 29, 2012
Hermann Seyffer, Heidelberg, DE;
Carmen-elena Cimpeanu, Ludwigshafen, DE;
Ines Pietsch, Speyer, DE;
Axel Weiss, Speyer, DE;
Peter Preishuber-pfluegl, Mannheim, DE;
Heiko Diehl, Mannheim, DE;
Marc Bothe, Monsheim, DE;
Florian Buesch, Neustadt, DE;
Hermann Seyffer, Heidelberg, DE;
Carmen-Elena Cimpeanu, Ludwigshafen, DE;
Ines Pietsch, Speyer, DE;
Axel Weiss, Speyer, DE;
Peter Preishuber-Pfluegl, Mannheim, DE;
Heiko Diehl, Mannheim, DE;
Marc Bothe, Monsheim, DE;
Florian Buesch, Neustadt, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Described is paper or cardboard packaging produced from mineral oil contaminated, recycled paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymeric dispersion comprising a copolymer obtainable by emulsion polymerization of C1-C4 alkyl(meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0 to 10 wt % of further monomers, wherein the glass transition temperature of the copolymer is in the range from +10 to +45° C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.