Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Riker Laboratories Inc.

Alan R Kirk

Eric G Larson

Ernest L Thurber

Gregg D Dahlke

Thomas P Klun

Zai-Ming Qiu

John Charles Clark

Walter L Harmer

George G I Moore

Robert J DeVoe

Don H Kincaid

Roy Stubbs

Mark R Meierotto

Ramesh C Kumar

Kam Wah Law

David J Kinning

Roger A Mader

Richard B Ross

Gregg Alexander Caldwell

Elizabeth C Edblom

Robert A Scherrer

Steven J Keipert

James P DiZio

Allen L Griggs

George Gi Moore

Fluoroacrylates comprise the reaction product of: 

Water- and oil-repellent fluoroacrylates

A process for preparing fluorochemical monoisocyanates comprises reacting at least one fluorochemical alcohol represented by the formula CFSONCH(CH)OH, wherein n=2 to 5, and m=2 to 4, with 4,4'-diphenylmethane diisocyanate (MDI) in a solvent in which the resulting fluorochemical monoisocyanate is not soluble; wherein the molar ratio of fluorochemical alcohol:MDI is from about 1:1 to about 1:2.5.

Process for preparing fluorochemical monoisocyanates

The present invention involves the use of powder coating methods to form coated abrasives. In one embodiment, the powder is in the form of a multiplicity of binder precursor particles comprising a radiation curable component. In other embodiments, the powder comprises at least one metal salt of a fatty acid and optionally an organic component that may be a thermoplastic macromolecule, a radiation curable component, and/or a thermally curable macromolecule. In either embodiment, the powder exists as a solid under the desired dry coating conditions, but is easily melted at relatively low temperatures and then solidified also at reasonably low processing temperatures. The principles of the present invention can be applied to form make coats, size coats, and/or supersize coats, as desired.

Abrasive articles having abrasive layer bond system derived from solid, dry-coated binder precursor particles having a fusible, radiation curable component

Seamless backings and seamless coated abrasive articles are provided. The seamless backings and seamless coated abrasive articles have a backing binder formed from a backing binder precursor comprising an aromatic polyisocyanate prepolymer, a polyol curative, an acrylated urethane, and at least one polymerization agent. Also provided is a method for preparing seamless backings and seamless coated abrasive articles.

Abrasive article with seamless backing

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 composition useful as a powder coating comprises an epoxy resin and a novolak compound or resin having a structure obtained from the reaction of a substituted phenol such as cresol and an aldehyde to form a substituted bis(hydroxymethyl) phenol intermediate which is then reacted with a polyhydroxyphenol containing adjacent hydroxyl groups such as catechol to yield a polyhydroxyphenol-endcapped novolak compound or resin.

Novolak compounds useful as adhesion promoters for epoxy resins

Organic compounds having at least one ethylenically-unsaturated group are described, the organic compounds being suitable for use in coatable compositions as reactive diluents; compounds of the invention preferably have a divalent organic linking moiety devoid of reactive groups other than optional ethylenically-unsaturated groups, and a polar organic moiety and are particularly adept in solubilizing aminoplast resins having radiation-curable pendant groups.

Organic compounds suitable as reactive diluents, and binder precursor

Organic compounds suitable as reactive diluents and binder precursor

Growing community of inventors

Cottage Grove, MN, United States of America

Alan R Kirk