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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.:

US 10252497 B1

PDFFull Text
Date of Patent:
Apr. 09, 2019

Filed:

Jul. 23, 2014

Multilayer composition for packaging

Applicant:

Basf SE, Ludwigshafen, DE;

Inventors:

Chien Hsu, Grosse Ile, MI (US);

Marco Balbo Block, Hamburg, DE;

Andre Kamm, Bohmte, DE;

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Betelhem Shewareged

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 37/12 (2006.01); C08L 67/00 (2006.01); B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); C08L 75/00 (2006.01); C08G 18/10 (2006.01); C08G 18/42 (2006.01); C09J 175/04 (2006.01); B32B 38/00 (2006.01); B32B 38/14 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 37/12 (2013.01); B32B 38/145 (2013.01); C08G 18/10 (2013.01); C08G 18/42 (2013.01); C08L 67/00 (2013.01); C08L 75/00 (2013.01); C09J 175/04 (2013.01); B32B 38/14 (2013.01); B32B 2255/06 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2439/00 (2013.01); B32B 2439/70 (2013.01); C08G 2101/00 (2013.01);
Abstract

A multilayer composition for packaging comprising a first polymer film, a second film, at least one print layer between the films and a 1 K isocyanate prepolymer adhesive layer between the at least one print layer and one of the films, where the print layer contains a hyperbranched polyester binder containing functional groups selected from the group consisting of —OH, —COOH and —COOR, where R is methyl, ethyl, vinyl, isopropyl, n-propyl, n-butyl, isobutyl, sec-butyl or tert-butyl provides packaging laminates with excellent adhesion. The hyperbranched polyester is for example a polymer of trimethyolpropane and hexahydrophthalic anhydride and optionally a cycloaliphatic diol.

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