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:
Aug. 02, 2022
Filed:
Sep. 25, 2019
Sihl Gmbh, Dueren, DE;
Manfred Schäfer, Cologne, DE;
Axel Niemöller, Dueren, DE;
Ronny Kunze, Schenkelberg, DE;
Steffen Ohr, Sursee, CH;
Sihl GmbH, Düren, DE;
Abstract
An inkjet printable flexible film for packaging applications is provided which includes (a) a biaxially oriented polymer film having a thickness in the range of from 8 to 70 μm; and (b) at least one ink-receiving layer including boehmite particles and poly(vinyl alcohol) having a degree of hydrolysis of from 78 to 96 mol % in a weight ratio ranging from 6.5:1 to 20:1 coated over one surface of the biaxially oriented polymer film at a dry coating weight being in the range of from 5 to less than 25 g/m, wherein the ink-receiving layer (b) is formed by (i) applying an aqueous coating composition including boehmite particles, an acidic dispersing agent, poly(vinyl alcohol), and boric acid and/or a borate, or (ii) applying boric acid and/or a borate in a first step and then an aqueous coating composition including boehmite particles, an acidic dispersing agent, poly(vinyl alcohol), and optionally further boric acid and/or borate. The packaging applications include the packaging of food, pet food, beverages, pharmaceuticals and/or personal care products.