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:
Sep. 30, 2025
Filed:
Nov. 19, 2021
Sun Chemical Corporation, Parsippany, NJ (US);
Jarol Osorio, Charlotte, NC (US);
Everett Garrish, Charlotte, NC (US);
Sun Chemical Corporation, Parsippany, NJ (US);
Abstract
The present invention provides a two part ink or coating system, wherein Part A comprises one or more hydroxyl functional resins, one or more aminoplast crosslinkers, one or more polyester polyols, and one or more solvents; and Part B comprises an acid catalyst. Part A and Part B are combined just prior to application on a substrate. The ink or coating system of the invention is resistant to removal from polyolefin film substrates when subjected to a hot caustic wash. When applied as an overcoat (backing coat) over conventional inks printed on polyolefin film substrates, the ink or coating system of the invention also prevents removal of the conventional inks from the polyolefin substrate when subjected to a hot caustic wash. Advantageously, use of the ink and coating systems of the present invention reduces ink staining and contamination of recycled PET flakes.