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:
Dec. 31, 2024
Filed:
Apr. 16, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Joseph B. Eckel, Vadnais Heights, MN (US);
Aaron K. Nienaber, Maplewood, MN (US);
Ronald D. Jesme, Plymouth, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of applying magnetizable particles onto an adherent web includes several steps. Step a) provides a magnetizable particle coating apparatus comprising a downward sloping dispensing surface at least partially disposed within an applied magnetic field. Step b) disposes an adherent web between upper and lower magnetic members and beneath the downward sloping dispensing surface, wherein the web comprises a backing having a curable binder precursor layer disposed on a major surface thereof. Step c) disposes magnetizable particles onto at least a portion of the downward sloping dispensing surface within the applied magnetic field, and subsequently disposed onto the curable binder precursor layer while the adherent web is advanced from an upweb position to a downweb position. Step d) at least partially cures the curable binder precursor layer to fix the orientations of the magnetizable particles.