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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 12742035 B1

PDFFull Text
Date of Patent:
Sep. 22, 2026

Filed:

Sep. 14, 2021

Aqueous self-crosslinkable polyurethane dispersions

Applicant:

Basf SE, Ludwigshafen am Rhein, DE;

Inventors:

Samane Mehravar, Ludwigshafen am Rhein, DE;

Paola Uribe Arocha, Ludwigshafen am Rhein, DE;

Daniel Von Nessen, Ludwigshafen am Rhein, DE;

Konrad Roschmann, Ludwigshafen am Rhein, DE;

Florian Ludwig Geyer, Ludwigshafen am Rhein, DE;

Mo Kit Chau, Ludwigshafen, DE;

Florian Schluetter, Ludwigshafen am Rhein, DE;

Juergen Kaczun, Ludwigshafen am Rhein, DE;

David Tuerp, Ludwigshafen am Rhein, DE;

Assignee:

BASF SE, Ludwigshafen am Rhein, DE;

Attorney:

Faegre Drinker Biddle & Reath LLP

Primary Examiner:

Monique R Jackson

Int. Cl.
CPC ...
C08G 18/42 (2006.01); C08G 18/32 (2006.01); C08G 18/34 (2006.01); C08G 18/66 (2006.01); C08G 18/75 (2006.01); C08G 63/20 (2006.01); C08G 63/91 (2006.01); C08K 5/25 (2006.01); C09D 7/20 (2018.01); C09D 7/63 (2018.01); C09D 15/00 (2006.01); C09D 175/12 (2006.01);
U.S. Cl.
CPC ...
C08G 18/4241 (2013.01); C08G 18/3206 (2013.01); C08G 18/3228 (2013.01); C08G 18/3234 (2013.01); C08G 18/3275 (2013.01); C08G 18/348 (2013.01); C08G 18/4202 (2013.01); C08G 18/4216 (2013.01); C08G 18/6659 (2013.01); C08G 18/755 (2013.01); C08G 63/20 (2013.01); C08G 63/916 (2013.01); C08K 5/25 (2013.01); C09D 7/20 (2018.01); C09D 7/63 (2018.01); C09D 15/00 (2013.01); C09D 175/12 (2013.01);
Abstract

The present invention relates to polyester polyols (1) carrying at least one keto-type C═O group derived from HO—C(═O)—L-C(═O)—R(1) or from a derivative thereof, wherein Lis a linking group and Ris selected from the group consisting of C-alkyl, C-cycloalkyl, C-aryl and C-aralkyl, to aqueous polyurethane dispersions (PUD) comprising at least one polyurethane (2) carrying at least one keto-type C═O group, water, and optionally at least one organic solvent (4), wherein the at least one polyurethane (2) carrying at least one keto-type C═O group comprises units derived from at least one polyester polyol (1), to aqueous self-crosslinkable polyurethane dispersions (SC-PUD) comprising at least one polyurethane (2) carrying at least one keto-type C═O group, at least one compound (3) carrying at least two keto-type C═O group reactive groups, water, and optionally at least one organic solvent (4), wherein the at least one polyurethane (2) carrying at least one keto-type C═O group comprises units derived from at least one polyester polyol (1), to aqueous self-crosslinkable polyurethane coating composition comprising the aqueous self-crosslinkable polyurethane dispersion (SC-PUD) optionally at least one organic solvent (5), at least one coating composition additive (6), optionally at least one polymer (7) different from the polyurethane (2), and optionally at least one monomer (8) carrying at least one olefinically unsaturated group, to substrate coated with the aqueous self-crosslinkable polyurethane coating composition, and to a process for coating the substrate with the aqueous self-crosslinkable polyurethane coating composition.

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