Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Walter L Harmer

Alan R Kirk

Kam Wah Law

Eric G Larson

Don H Kincaid

Kwok-Lun Ho

Robert J DeVoe

Ernest L Thurber

Peggy S Willett

Jerry W Williams

Harvey J Helmin

James P DiZio

John J Gagliardi

Jason A Chesley

Leif Christensen

Gary J Drtina

Gary L Olson

Robert A Follensbee

Mary Lou Morris

Charles H Houck

Mary L Morris

An abrasive article is provided which includes a peripheral surface formed comprising a grinding aid. The grinding aid is formed from a mixture including an acid and at least one of an inorganic metal phosphate salt or an inorganic metal sulfate salt. The acid is preferably selected so that the mixture forms a film. The abrasive article preferably has sharp abrasive particles. The inventive abrasive article improves grinding efficacy, particularly in titanium grinding processes, as compared to abrasive articles that are substantially devoid of a grinding aid of the present invention. Also provided is a method for making an abrasive article and a method of abrading a surface with an abrasive article.

Abrasive article containing a grinding aid and method of making the same

An abrasive article, for example, a coated, bonded, or nonwoven abrasive article comprising a binder, a plurality of abrasive particles, and an antiloading component.

Abrasive article comprising an antiloading component

An abrasive article is provided that includes at least one binder system formed from a polymeric additive and a thermosetting resin. The polymeric additive includes a polymeric backbone having substituents attached thereto, wherein the substituents include at least one urethane linked nitrogen bonded side chain having about 5 carbon atoms or more and a terminal methyl group and at least one oxygen linked water solubilizing group. An abrasive article that includes the binder system exhibits an increase of workpiece surface abraded in a Woodsanding Normal Force Test as compared to an abrasive article including a binder system formed from a composition containing substantially no polymeric additive.

Abrasive articles including a polymeric additive

An abrasive article is provided that includes a bond system formed from a binder precursor and about 15% by weight or less of a wax-containing modifier. An abrasive article that includes the bond system exhibits an increase of workpiece surface abraded in a Woodsanding Normal Force Test as compared to an abrasive article including a bond system formed from a composition containing substantially no wax-containing modifier.

Abrasive articles including an antiloading composition

A coated abrasive article comprised of a backing having a layer of grains adherently bonded thereto by a binding material, wherein the layer of grains comprises abrasive grains and nonabrasive composite grains, and the nonabrasive composite grains comprise inorganic nonabrasive particles bonded together by a binder selected from the group consisting of a metal salt of fatty acid, colloidal silica, and combinations thereof. The abrasive article has an unexpected abrading efficiency, performing equal to, or superior to, a coated abrasive article containing only abrasive grains. The invention also relates to a bonded abrasive article comprising the abrasive grains and nonabrasive composite grains adhered together.

High performance abrasive articles containing abrasive grains and

An abrasive article, and methods of making and using same, comprising an inorganic phosphate selected from the group consisting of an alkali metal metaphosphate, an alkaline earth metal metaphosphate, and a Group IIIA metal orthophosphate; the inorganic phosphate may be present in a peripheral coating layer of a coated abrasive article, or an abrasive slurry coating in a uniform thickness, or a structured abrasive article.

Abrasive article containing an inorganic phosphate

An abrasive article, for example, a coated, bonded, or nonwoven abrasive article comprising a binder, a plurality of abrasive particles, and an antiloading component in a peripheral coating of the abrasive article.

Antiloading components for abrasive articles

Abrasive articles comprising a plurality of abrasive particles, a combination of potassium tetrafluoroborate and a halogenated polymer, and a binder to which the plurality of abrasive particles are adhered, and methods of making and using the abrasive articles.

Abrasive articles, methods of making abrasive articles, and methods of

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.

Coated abrasive article

Coatable mixtures including erodable filler agglomerates, and abrasive articles into which they may be incorporated are presented, the agglomerates comprising a plurality of individual grains of water insoluble filler agglomerated by an agglomerating agent which includes water soluble filler and a binder. A preferred water soluble filler is Al.sub.2 (SO.sub.4).sub.3.14-18H.sub.2 O, a preferred water insoluble filler is Na.sub.3 AlF.sub.6 (cryolite), while a preferred binder is a phenolic resin. Methods of making coatable mixtures including erodable filler agglomerates are also presented.

Coatable mixtures including erodable filler agglomerates, methods of

Coated abrasive article and method of making same

Coated abrasive product contains a conductive, doped, conjugated polymer to reduce the static charge generated during abrading operations.

Abrasive article with conductive, doped, conjugated, polymer coat and

A tough, wear-resistant polyurethane coating composition particularly suited for providing a protective coating on an elastomeric flooring is provided by the moisture-cured reaction product of an organic isocyanate-terminated prepolymer produced by reacting a diol component comprising at least one diol having a weighted average molecular weight between about 500 and 1200 and two primary hydroxyl groups, sufficient diisocyanate compound having two terminal isocyanate groups and sufficient compatible catalyst to facilitate the cure of the prepolymer. The invention also includes a floor covering material having a traffic surface coated with the coating composition.

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Arden Hills, MN, United States of America

Walter L Harmer