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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 12398098 B1

PDFFull Text
Date of Patent:
Aug. 26, 2025

Filed:

Jan. 21, 2021

Waterborne crosslinker 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;

Kristel De Vos Verschuren, Geleen, NL;

Stella Josette Van Dijk, Geleen, NL;

Jan Van Riel, Geleen, NL;

Rob Looijmans, Geleen, NL;

Assignee:

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

Attorney:

The Webb Law Firm

Primary Examiner:

Heidi R Kelley

Assistant Examiner:

Adam J Berro

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 a multi-aziridine crosslinker composition, characterized in that the multi-aziridine crosslinker composition is an aqueous dispersion having a pH ranging from 8 to 14 and comprises a multi-aziridine compound in dispersed form, wherein said multi-aziridine compound has: a. from 2 to 6 of the following structural units A: whereby Ris H, Rand Rare independently chosen from H or an aliphatic hydrocarbon group containing from 1 to 4 carbon atoms, R a is an aliphatic hydrocarbon group containing from 1 to 4 carbon atoms, m is 1, 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 wherein the molecular weight is determined using MALDI-TOF mass spectrometry according to the description.

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