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:
Jun. 26, 2018
Filed:
Nov. 05, 2015
3m Innovative Properties Company, St. Paul, MN (US);
Chris J. Tanley, Stillwater, MN (US);
Lori T. Holmes, Woodbury, MN (US);
Michael J. Tichy, Henning, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A center-fed single cavity slot die () for coating particulate suspensions without creating the coating defect known as center banding. The die has a flow obstruction device () located in the die cavity () in a position such that the flow obstruction device blocks undisturbed straight-line flow of coating composition from the feed inlet to the die coating slot. Also, a coating process that employs the disclosed coating die. Types, shapes, sizes, and compositions of particles that may be used, and viscoities and particle concentrations of the coating composition which may be used.