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:
Mar. 05, 2002
Filed:
Feb. 25, 2000
Applicant:
Inventors:
Laurie A. Windisch, Stillwater, MN (US);
Mary Beth Donovan, St. Paul, MN (US);
Loc X. Van, Woodbury, MN (US);
Gary T. Stram, Prairie Du Chien, WI (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 3/00 ; B24D 3/28 ; B24D 1/100 ;
U.S. Cl.
CPC ...
B24D 3/00 ; B24D 3/28 ; B24D 1/100 ;
Abstract
Described are abrasive articles comprising a nonwoven; a binder layer contacting the nonwoven and at least partially filling spaces between fibers of the nonwoven; first abrasive particles adhered to the binder layer; a slurry layer comprising a second binder and second abrasive particles, the slurry layer contacting the nonwoven and the first layer and at least partially filling spaces within the fibers of the nonwoven; and, methods of preparation of such articles.