Alan R Kirk

US Patent:

6441058, Aug 27, 2002

Filed:

Jan 16, 2001

Appl. No.:

09/761371

Inventors:

Ernest L. Thurber - Woodbury MN
Eric G. Larson - Lake Elmo MN
Gregg D. Dahlke - St. Paul MN
Robert J. DeVoe - Oakdale MN
Alan R. Kirk - Cottage Grove MN
Mark R. Meierotto - Hudson WI
Roy Stubbs - Nuneaton, GB

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C09D 503

US Classification:

522 96, 522103, 522107, 522170, 522173, 522174, 522175, 522179, 522181, 522182

Abstract:

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.

US Patent:

6465076, Oct 15, 2002

Filed:

Sep 15, 1998

Appl. No.:

09/153627

Inventors:

Eric G. Larson - Lake Elmo MN
Steven J. Keipert - Oakdale MN
Alan R. Kirk - Cottage Grove MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B24D 1102

US Classification:

428143, 428149, 4284231, 51295, 51297, 442 63, 442164, 442167

Abstract:

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.

US Patent:

6753359, Jun 22, 2004

Filed:

Dec 20, 2001

Appl. No.:

10/028160

Inventors:

Ernest L. Thurber - Woodbury MN
Eric G. Larson - Lake Elmo MN
Gregg D. Dahlke - St. Paul MN
Robert J. DeVoe - Oakdale MN
Alan R. Kirk - Cottage Grove MN
Mark R. Meierotto - Hudson WI
Roy Stubbs - Nuneaton, GB

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 516

US Classification:

522 74, 79 81, 79 83, 79100, 79104, 79173, 79178, 79182, 524174, 524394, 524400, 428148, 428143

Abstract:

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.

US Patent:

7081545, Jul 25, 2006

Filed:

Dec 31, 2003

Appl. No.:

10/751142

Inventors:

Thomas P. Klun - Lakeland MN, US
Alan R. Kirk - Cottage Grove MN, US
George G.I. Moore - Afton MN, US
John C. Clark - White Bear Lake MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C07C 269/02

US Classification:

560 27, 560336

Abstract:

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.

US Patent:

7199197, Apr 3, 2007

Filed:

Dec 28, 2004

Appl. No.:

11/027604

Inventors:

Gregg A. Caldwell - Cottage Grove MN, US
John C. Clark - White Bear Lake MN, US
David J. Kinning - Woodury MN, US
Alan R. Kirk - Cottage Grove MN, US
Thomas P. Klun - Lakeland MN, US
Ramesh C. Kumar - Maplewood MN, US
Roger A. Mader - Stillwater MN, US
George G. I. Moore - Afton MN, US
Richard B. Ross - Cottage Grove MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 12/20

US Classification:

526242, 526286, 526319, 528 70, 524544, 560167

Abstract:

Fluoroacrylates comprise the reaction product of:.

US Patent:

7659351, Feb 9, 2010

Filed:

Mar 19, 2007

Appl. No.:

11/688074

Inventors:

Gregg A. Caldwell - Cottage Grove MN, US
John C. Clark - White Bear Lake MN, US
David J. Kinning - Woodury MN, US
Alan R. Kirk - Cottage Grove MN, US
Thomas P. Klun - Lakeland MN, US
Ramesh C. Kumar - Maplewood MN, US
Roger A. Mader - Stillwater MN, US
George G I. Moore - Afton MN, US
Richard B. Ross - Cottage Grove MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 12/20

US Classification:

526242, 526286, 526319, 528 70, 524544, 560167

Abstract:

Fluoroacrylates comprise the reaction product of:.

US Patent:

7361782, Apr 22, 2008

Filed:

Jul 12, 2006

Appl. No.:

11/457037

Inventors:

Thomas P. Klun - Lakeland MN, US
Alan R. Kirk - Cottage Grove MN, US
George G. I. Moore - Afton MN, US
John C. Clark - White Bear Lake MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C07C 249/00

US Classification:

560330, 560336, 560 27

Abstract:

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.

US Patent:

57102813, Jan 20, 1998

Filed:

Feb 23, 1996

Appl. No.:

8/606325

Inventors:

Ernest L. Thurber - St. Paul MN
Eric G. Larson - Lake Elmo MN
Alan R. Kirk - Cottage Grove MN
Gregg D. Dahlke - St. Paul MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

C07D48704
C07D20948
B32B 516
B32B 1804

US Classification:

548429

Abstract:

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.