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:
Nov. 01, 1994
Filed:
Jul. 29, 1993
Walter L Harmer, Arden Hills, MN (US);
Robert J DeVoe, Oakdale, MN (US);
Eric G Larson, Lake Elmo, MN (US);
Don H Kincaid, Hudson, WI (US);
Peggy S Willett, Stillwater, MN (US);
Jerry W Williams, Cottage Grove, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A method for preparing a coated abrasive article wherein the a plurality of abrasive grains are applied to a make coat such that the abrasive grains are substantially a mono-layer. The make coat precursor is a pressure-sensitive adhesive-like or pressure-sensitive adhesive. The make coat precursor is partially cured to approximate a pressure-sensitive adhesive-like layer or when fully cured is a pressure-sensitive adhesive. The make coat precursor has sufficient 'tack' to hold the abrasive grains during the application and curing of the size coat, resulting in a substantially monolayer of abrasive grains.