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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 9580538 B1

PDFFull Text
Date of Patent:
Feb. 28, 2017

Filed:

Oct. 24, 2011

Robust adhesives for laminating flexible packaging material

Applicants:

Guido Kollbach, Apex, NC (US);

Balasubramaniam Ramalingam, Cary, NC (US);

Inventors:

Guido Kollbach, Apex, NC (US);

Balasubramaniam Ramalingam, Cary, NC (US);

Assignee:

Henkel IP & Holding GmbH, Duesseldorf, DE;

Attorney:

James E. Piotrowski

Primary Examiner:

Patrick Niland

Int. Cl.
CPC ...
A47G 19/22 (2006.01); B28B 21/00 (2006.01); B29D 22/00 (2006.01); B29D 23/00 (2006.01); B31B 45/00 (2006.01); B32B 1/08 (2006.01); B32B 15/08 (2006.01); B32B 27/00 (2006.01); B32B 27/10 (2006.01); B32B 27/32 (2006.01); B32B 27/40 (2006.01); C03C 17/32 (2006.01); C08G 18/00 (2006.01); C08G 18/08 (2006.01); C08G 18/28 (2006.01); C08L 75/00 (2006.01); C09J 4/00 (2006.01); C09J 101/00 (2006.01); C09J 201/00 (2006.01); F16L 9/10 (2006.01); C08G 18/10 (2006.01); C08G 18/12 (2006.01); C08G 18/40 (2006.01); C08G 18/42 (2006.01); C09J 175/06 (2006.01); B32B 7/12 (2006.01); B32B 15/085 (2006.01); B32B 15/09 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
C08G 18/10 (2013.01); B32B 7/12 (2013.01); B32B 15/085 (2013.01); B32B 15/09 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); C08G 18/12 (2013.01); C08G 18/4018 (2013.01); C08G 18/4202 (2013.01); C08G 18/4238 (2013.01); C09J 175/06 (2013.01); B32B 2439/00 (2013.01); Y10T 428/31565 (2015.04); Y10T 428/31587 (2015.04); Y10T 428/31605 (2015.04);
Abstract

A robust, two component adhesive for laminating flexible packaging material comprising a mixture of Component A and Component B. Component A comprises an isocyanate-functionalized compound. Component B comprises a mixture of a high functionality polyol containing at least four hydroxyl groups per molecule with at least two primary OH groups on the molecule and two secondary OH groups on the molecule and a trifunctional polyol containing three OH groups on the molecule. Component B can contain a difunctional polyol containing two OH groups on the molecule. The adhesive is robust and retains desirable properties when used at varying A:B mix ratios better than conventional laminating adhesives used at the same mix ratios.

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