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:
Oct. 17, 2023
Filed:
Aug. 10, 2020
Basf SE, Ludwigshafen am Rhein, DE;
Karl-Heinz Schumacher, Ludwigshafen am Rhein, DE;
Matthias Gerst, Ludwigshafen am Rhein, DE;
Peter Preishuber-Pfluegl, Ludwigshafen am Rhein, DE;
Kevin Payne, Wyandotte, MI (US);
Timothy Klots, Wyandotte, MI (US);
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
A description is given of a method of making film laminates using a lamination adhesive comprising (a) at least one acrylic polymer A with anhydride groups which are reactive with primary or secondary amine groups; and (b) at least one compound B with at least two amine groups selected from primary and secondary amine groups. The acrylic polymer A has a molecular weight of from 3000 to 50000 and the lamination adhesive is free of organic solvents, free of water and free of compounds with isocyanate groups.