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. 04, 2026
Filed:
Apr. 17, 2020
Applicant:
Covestro Deutschland Ag, Leverkusen, DE;
Inventors:
Joerg Buechner, Bergisch Gladbach, DE;
Hans-Josef Laas, Odenthal, DE;
Harald Kraus, Leverkusen, DE;
Martin Melchiors, Leichlingen, DE;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 175/04 (2006.01); C08G 18/08 (2006.01); C08G 18/28 (2006.01); C08G 18/40 (2006.01);
U.S. Cl.
CPC ...
C09J 175/04 (2013.01); C08G 18/0866 (2013.01); C08G 18/2865 (2013.01); C08G 18/409 (2013.01); C08G 2115/06 (2021.01);
Abstract
The invention relates to the use of solid polycarbodiimide resins having a softening temperature of >+30° C. as cross-linking agents for adhesive dispersions polymers. The mixtures from at least one solid polycarbodiimide resin and at least one polymer dispersion are suitable for producing storage stable latent-reactive adhesive dispersions, latent-reactive adhesive layers, self-supporting latent reactive adhesive films or latent-reactive adhesive powders.