3m Innovative Properties Company

Christopher J Carter

Michael John Annen

Roy Stubbs

Gordon A Kuhnley

Jean Le Normand

Tracey E Winspear

Philippe Reiterer

Roy Parmentier

Richard J Darwood

Provided are abrasive articles, and related methods, that include a flexible abrasive layer having opposed first and second major surfaces, a foam backing bonded to the second major surface, the foam backing being resiliently compressible, and a plurality of slits disposed on the first major surface and penetrating through the flexible abrasive layer and at least partially through the foam backing. In further disclosed embodiments, the abrasive article includes, a flexible abrasive layer having opposed first and second major surfaces, a structured member extending across the second major surface of the flexible abrasive layer, where the structured member and the flexible abrasive layer have respective three-dimensional patterns of discrete, isolated wells that correspond to each other, and a foam backing extending across a major surface of the structured member opposite the flexible abrasive layer, the foam backing being resiliently compressible.

Abrasive article and related methods

Described herein is an improved abrasive material () in which the cutting performance is orientation-independent. The abrasive material () comprises an abrasive structure () including a plurality of elongate abrasive elements () aligned to be define a first open square. A plurality of pyramidal abrasive elements () arranged in a second open square are located within the first open square defined by the elongate elements ().

Abrasive material with different sets of plurality of abrasive elements

An abrasive article comprising abrasive particles and a UV-cured formulation and a filler, wherein the filler is substantially transparent to UV-radiation and the filler is present in a range from 20 to 80 percent by weight based on the combined weight of the formulation and filler and the filler comprises microspheres of aluminosilicate ceramic having an average particle size in a range of from 1 micrometer to 40 micrometers. A method of making and using the abrasive articles is also provided.

Abrasive articles and method of making and using the articles

The present invention provides a web material useful as a tack pad comprising a non-woven cross-laid web which is needle-tacked and at least one of chemically or thermally-bonded and at least one major surface of which is impregnated with a tackifier. The invention also provides a dispenser that will accept a stack of tack pads. The dispenser is shaped to contain a stack of tack pads in position over an outlet opening in the bottom of the dispenser and to permit one access to one edge of the bottom pad of the stack. The edge is located inside the dispenser and the dispenser comprises an at least partially open front and a door mounted on the dispenser. The door may be pivoted between an open position and a closed position over the front. The door has turned-back side edges to fit around the dispenser to prevent dust from entering the dispenser. The bottom pad can be pulled downwardly away from the stack through the outlet opening.

Web material comprising a tackifier

A binder for abrasive products, coated abrasive articles and a method of making the same comprising a urea formaldehyde resin precursor cured in the presence of a sole catalyst which consists essentially of at least one salt of an acid with a diamine of the formula H N&mdash;R&mdash;NH wherein R is an alkylene group of 3 to 10 carbon atoms, and the acid is selected from the group consisting of hydrochloric, citric, nitric, sulphuric, acetic, phosphoric and combinations thereof.

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Nuneaton, United Kingdom

Christopher J Carter