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:
Aug. 26, 2025
Filed:
Jan. 21, 2021
Covestro (Netherlands) B.v., Geleen, NL;
Gerardus Cornelis Overbeek, Geleen, NL;
Patrick Johannes Maria Stals, Geleen, NL;
Daan Van Der Zwaag, Geleen, NL;
Alfred Jean Paul Bückmann, Geleen, NL;
Josephus Christiaan Van Oorschot, Geleen, NL;
Covestro (Netherlands) B.V., Geleen, NL;
Abstract
The present invention relates to a multi-aziridine compound having: a) at least 2 of the following structural units (A) whereby Ris H; Rand Rare independently chosen from H, a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; Ris chosen from a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; or Rand R(in case Ris different than H) may be part of the same cyclic group containing from 3 to 8 carbon atoms; R' and R″ are independently H or an aliphatic hydrocarbon group containing from 1 to 12 carbon atoms; and b) a molecular weight of at least 600 Daltons, wherein the molecular weight is determined using MALDI-TOF mass spectrometry according to the description.