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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 11359063 B1

PDFFull Text
Date of Patent:
Jun. 14, 2022

Filed:

Nov. 01, 2019

Mitigation of mineral oil migration in pressure-sensitive labels and films

Applicant:

Jindal Films Americas Llc, LaGrange, GA (US);

Inventor:

David Piran, Saint-Laurent-sur-Othain, FR;

Assignee:

Jindal Innovation Center Sri, Virton, BE;

Attorneys:

Rao Deboer Osterrieder, PLLC

Erik J. Osterrieder

Primary Examiner:

Michael C Miggins

Int. Cl.
CPC ...
C08J 7/043 (2020.01); C09J 7/24 (2018.01); C09J 7/35 (2018.01); C09J 7/50 (2018.01); B32B 7/12 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
C08J 7/043 (2020.01); B32B 7/12 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); C09J 7/243 (2018.01); C09J 7/35 (2018.01); C09J 7/50 (2018.01); B32B 2250/24 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/518 (2013.01); B32B 2307/7265 (2013.01); B32B 2519/00 (2013.01); C09J 2423/106 (2013.01); C09J 2429/003 (2013.01); C09J 2467/003 (2013.01); C09J 2477/003 (2013.01);
Abstract

Disclosed are hot-melt, curl-free methods, structures, and compositions, which in flexible packaging applications, reduce mineral-oil, hydrocarbon migration into packaged food. One embodiment provides an optionally oriented base film having a first side and a second side that is a transparent or opaque film. Further, the composition comprises, consists essentially of, or consists of a water-based primer applied to the first side. Further still, the composition includes a barrier layer to mineral-oil migration, wherein the barrier layer is located between the adhesive-receptive layer and the polymeric substrate, and wherein the barrier layer consists essentially of: (i) polymers of polyvinyl alcohol, ethylene vinyl alcohol, polyester, polyamide, or combinations thereof; and (ii) optionally additives. The barrier layer provides a barrier to mineral-oil migration of 0.1 μg/day*dmor less at 40° C. for 40 days, and the curl-resistant composition does not curl when heated for at least one hour at 60° C.

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