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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 12565473 B1

PDFFull Text
Date of Patent:
Mar. 03, 2026

Filed:

Jan. 21, 2021

Coating composition

Applicant:

Covestro (Netherlands) B.v., Geleen, NL;

Inventors:

Gerardus Cornelis Overbeek, Geleen, NL;

Patrick Johannes Maria Stals, Geleen, NL;

Daan Van Der Zwaag, Geleen, NL;

Alfred Jean Paul Bückmann, Geleen, NL;

Hermanus Adrianus Langermans, Geleen, NL;

Stella Josette Van Dijk, Geleen, NL;

Rob Looijmans, Geleen, NL;

Assignee:

Covestro (Netherlands) B.V., Geleen, NL;

Attorney:

The Webb Law Firm

Primary Examiner:

Patrick D Niland

Int. Cl.
CPC ...
C07D 203/10 (2006.01); C07D 251/32 (2006.01); C07D 403/12 (2006.01); C07D 403/14 (2006.01); C07D 413/14 (2006.01); C07D 487/14 (2006.01); C08F 220/18 (2006.01); C08G 18/02 (2006.01); C08G 18/08 (2006.01); C08G 18/12 (2006.01); C08G 18/22 (2006.01); C08G 18/24 (2006.01); C08G 18/28 (2006.01); C08G 18/30 (2006.01); C08G 18/32 (2006.01); C08G 18/34 (2006.01); C08G 18/38 (2006.01); C08G 18/42 (2006.01); C08G 18/44 (2006.01); C08G 18/48 (2006.01); C08G 18/66 (2006.01); C08G 18/67 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); C08G 18/76 (2006.01); C08G 18/79 (2006.01); C08G 18/83 (2006.01); C08K 5/3412 (2006.01); C08K 5/3492 (2006.01); C08L 63/00 (2006.01); C09D 7/20 (2018.01); C09D 7/45 (2018.01); C09D 7/63 (2018.01); C09D 7/65 (2018.01); C09D 11/101 (2014.01); C09D 133/02 (2006.01); C09D 133/04 (2006.01); C09D 175/04 (2006.01); C09D 175/08 (2006.01); C09D 175/12 (2006.01);
U.S. Cl.
CPC ...
C07D 203/10 (2013.01); C07D 251/32 (2013.01); C07D 403/12 (2013.01); C07D 403/14 (2013.01); C07D 413/14 (2013.01); C07D 487/14 (2013.01); C08F 220/1804 (2020.02); C08G 18/027 (2013.01); C08G 18/0823 (2013.01); C08G 18/0866 (2013.01); C08G 18/12 (2013.01); C08G 18/227 (2013.01); C08G 18/246 (2013.01); C08G 18/282 (2013.01); C08G 18/2825 (2013.01); C08G 18/283 (2013.01); C08G 18/2865 (2013.01); C08G 18/2875 (2013.01); C08G 18/302 (2013.01); C08G 18/3228 (2013.01); C08G 18/3231 (2013.01); C08G 18/3275 (2013.01); C08G 18/348 (2013.01); C08G 18/3842 (2013.01); C08G 18/4291 (2013.01); C08G 18/44 (2013.01); C08G 18/4808 (2013.01); C08G 18/4825 (2013.01); C08G 18/4854 (2013.01); C08G 18/4862 (2013.01); C08G 18/4879 (2013.01); C08G 18/6692 (2013.01); C08G 18/6715 (2013.01); C08G 18/73 (2013.01); C08G 18/755 (2013.01); C08G 18/758 (2013.01); C08G 18/765 (2013.01); C08G 18/792 (2013.01); C08G 18/798 (2013.01); C08G 18/833 (2013.01); C08K 5/3412 (2013.01); C08K 5/34924 (2013.01); C08K 5/34926 (2013.01); C08L 63/00 (2013.01); C09D 7/20 (2018.01); C09D 7/45 (2018.01); C09D 7/63 (2018.01); C09D 7/65 (2018.01); C09D 11/101 (2013.01); C09D 133/02 (2013.01); C09D 133/04 (2013.01); C09D 175/04 (2013.01); C09D 175/08 (2013.01); C09D 175/12 (2013.01); C08G 2150/00 (2013.01);
Abstract

The present invention relates to an aqueous coating composition comprising a multi-aziridine compound and a carboxylic acid functional polymer, characterized in that (i) the composition is an aqueous dispersion having a pH ranging from 8 to 14, (ii) the aqueous dispersion comprises particles X which particles X comprise multi aziridine compound and particles Y which particles Y comprise carboxylic acid functional polymer, and (iii) said multi-aziridine compound has: a) from 2 to 6 of the following structural units A: b) one or more linking chains wherein each one of these linking chains links two of the structural units A; and c) a molecular weight in the range from 500 to 10000 Daltons.

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