3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Rufus C Sanders, Jr

Edward J Woo

Seyed Abolhassan Angadjivand

Thomas W Rambosek

Kris A Beardsley

Ehrich J Braunschweig

Brent D Niccum

Jonathan M Lise

Donna Wendeln Bange

Charles R Wald

Curtis J Schmidt

Timothy J Rowell

Suresh Kalatoor

Eric G Larson

Joseph B Eckel

Satinder K Nayar

Charles J Studiner, Iv

Chris A Minick

Gary L Olson

Edward L Manor

Liana Victoria Palaikis

Robert A Harkins

Elizabeth C Edblom

Mary B Donovan

Walter W Pawlikowski, Jr

Yeun-Jong Chou

Ehrich J Bräunschweig

Jeffrey D Sheely

Richard B Muir

A dust collection device for a sanding tool comprising a bag having a sidewall and a coupler attached to the bag. The sidewall comprising a first filter layer, a second filter layer, and an outer support layer. The first filter layer comprising a plurality of fibrillated electrostatically charged electret fibers forming a nonwoven web; the first filter layer having a total pressure drop between about 0.1 to about 4.0 mm HO, and the first filter layer having a total basis weight between about 50 to about 450 gram/m. The second filter layer comprising a melt blown microfiber nonwoven web; the second filter layer having a total pressure drop between about between about 5.5 to about 20.0 mm HO, and the second filter layer having a total basis weight between about 15 to about 75 grams/m.

Dust collection device for sanding tool

Abrasive articles, and methods of making abrasive articles by using a laser to convert (e.g., cut) at least a portion of the abrasive coating to form the abrasive article. The method includes laser propagation impinging on the abrasive back side (opposite the abrasive coating) and progressing through to the abrasive side. Such a process inhibits ridging effects around cut regions (e.g., openings) on the front side.

Laser cut abrasive article, and methods

An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the porous attachment fabric. Methods of making and using the abrasive articles are included.

Abrasive article and method of making and using the same

An abrasive filter assembly with an integral dust collection system. The abrasive filter assembly comprises a porous element, a first filter media with channels, a second filter media, and an attachment interface layer. The openings of the porous element cooperate with the channels to allow the flow of particles from the porous element to the second filter media. The porous element can be an abrasive article or an attachment surface for an abrasive article.

Abrasive filter assembly and methods of making same

An abrasive article mounting assembly with an integral dust collection system. The abrasive attachment interface is configured to releasably engage and support an abrasive article, such as, for example, a porous abrasive sheet or disc.

Abrasive article mounting assembly and methods of making same

An abrasive article having an apertured coated abrasive member, filter media, and an attachment interface member is formed by an ultrasonic welding process. The abrasive article is useful for abrading a workpiece.

Abrasive article and methods of making and using the same

An abrasive article with an integral dust collection system. The abrasive article comprises a porous abrasive layer with openings, a first filter media with channels, a second filter media, and an attachment interface layer. The openings of the porous abrasive layer cooperate with the channels to allow the flow of particles from the abrasive surface to the second filter media.

Abrasive article and methods of making same

The present invention provides a flexible abrasive article containing minimal releaseable amounts of physical and chemical contaminants that may be used to clean surfaces. The abrasive article is made of a foraminous substrate, at least one binder and abrasive particles. Methods of making such abrasive articles are also provided.

Flexible abrasive article

Method of making a foraminous abrasive article

Method and apparatus for manufacturing abrasive articles

Abrasive foam articles and a method of manufacture of such articles are described. The articles of the invention comprise a flexible and resilient foam substrate having first and second major substrate surfaces, at least one of the surfaces having a plurality of open cells substantially across the substrate surface, the open cells having coatable surfaces defined by interconnected voids; and a plurality of abrasive particles adhered to said coatable surfaces of said open cells in a substantially uniform manner.

Abrasive foam article and method of making same

A method for making an abrasive article is described including the steps of providing an organic substrate; contacting the organic substrate with dry particulate solid material comprising a binder material, the binder material comprising a plurality of fusible organic particles, and a plurality of abrasive particles; inducing the fusible organic particles to liquefy; and solidifying the organic particles to thereby bond the particles to the organic substrate to provide an abrasive article. The invention provides a facile method for bonding abrasive particles to an organic substrate while reducing emissions at processing.

Method of making an abrasive article and abrasive article produced

Lofty, low density nonwoven pads and a process for the manufacture of such pads are described. The pads of the invention each comprise a bundle of discontinuous fibers bonded to one another at their mutual points of contact. The fibers are arranged within the bundle to provide a dense longitudinal central portion extending to opposite ends of the bundle, less dense side portions, a longitudinal tensile strength and a transverse tensile strength, wherein the longitudinal tensile strength is greater than the transverse tensile strength. The pads are made according to a process comprising forming a tow of discontinuous fibers so that the fibers are arranged within the tow to extend along a first axis, twisting the tow along the first axis to form a slubbed tow, bonding the fibers to one another at their mutual contact points and cutting the slubbed tow into scouring pads and the like.

Scouring articles and process for the manufacture of same

An open low-density abrasive article comprising in combination:

Growing community of inventors

Burnsville, MN, United States of America

Rufus C Sanders, Jr