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:
Oct. 24, 2023
Filed:
Jul. 26, 2022
Applicant:
Sun Chemical Corporation, Parsippany, NJ (US);
Inventor:
Derek Illsley, South Normanton, GB;
Assignee:
SUN CHEMICAL COPORATION, Parsippany, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/38 (2014.01); C09D 175/04 (2006.01); C09D 175/14 (2006.01);
U.S. Cl.
CPC ...
C09D 11/38 (2013.01); C09D 175/04 (2013.01); C09D 175/14 (2013.01);
Abstract
The invention provides an aqueous printing ink composition comprising a polyurethane dispersion, wherein the polyurethane of the polyurethane dispersion comprises the properties of (a) ketone or aldehyde groups present at one or more polymer chain ends; (b) a number average molecular weight ≤50,000, more preferably ≤25,000 and; (c) the content of ketone and/or aldehyde groups is in the range 0.02 to 4.0 mmol g−1, based on the dry polymer weight.