Kevin M Lewandowski

US Patent:

6433073, Aug 13, 2002

Filed:

Jul 27, 2000

Appl. No.:

09/626028

Inventors:

Steven S. Kantner - St. Paul MN
Matthew T. Scholz - Woodbury MN
Kevin M. Lewandowski - Inver Grove Heights MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08J 303

US Classification:

524591, 424 59, 424 61, 424 63, 424 64, 424 69, 424 701, 424 707, 424 7011, 424 7837, 424401, 424405, 524839, 524840, 528 71

Abstract:

A polyurethane dispersion and a method of making are provided. The polyurethane dispersion is stable in a mixture of alcohol and water. The dispersion comprises the reaction product of (a) an isocyanate terminated polyurethane prepolymer comprising the reaction product of (i) at least one oligomeric polyactive hydrogen compound insoluble in said alcohol, wherein said polyactive hydrogen compound is an alkyl, aryl, or aralkyl structure optionally substituted by N, O, and S; (ii) at least one polyisocyanate, and (iii) at least one polyactive hydrogen compound soluble in said mixture of alcohol and water; (b) a polyfunctional chain extender; and (c) a monofunctional chain terminator; wherein the equivalent ratio of difunctional chain extender to prepolymer isocyanate is 0. 60 to 1. 20.

US Patent:

6448301, Sep 10, 2002

Filed:

Sep 8, 2000

Appl. No.:

09/657742

Inventors:

Babu N. Gaddam - Woodbury MN
Steven M. Heilmann - Afton MN
Ahmed S. Abuelyaman - Woodbury MN
Maureen A. Kavanagh - Stanchfield MN
Duane D. Fansler - Dresser WI
Kevin M. Lewandowski - Inver Grove Heights MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08J 250

US Classification:

522 6, 522 8, 522 35, 522904, 522150, 522153, 522157, 522178, 522182, 522184, 522114, 522113, 522120, 522121, 522125, 526328, 5263285

Abstract:

This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100Â C.

US Patent:

6566508, May 20, 2003

Filed:

Mar 11, 2002

Appl. No.:

10/094678

Inventors:

James Gregory Bentsen - North Saint Paul MN
Christopher Allen Mickelson - Saint Paul MN
Orlin Bruce Knudson - Vadnais Heights MN
Kevin Michael Lewandowski - Inver Grove Heights MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C07H 1700

US Classification:

536 41, 536 172, 536 174, 536 181, 536 184, 530300, 530331, 548100, 548146, 548200, 548202, 548215, 548235, 5483001, 5483117, 5483335, 549 29, 549 30, 549 70, 549 72, 549218, 549368, 549402, 435 72, 435 732, 435 733, 435 734, 435 735, 435 29, 435 31

Abstract:

Disclosed are novel coumarin based fluorogenic compounds useful in assaying for biological activity. Specifically, these fluorogenic compounds exhibit fluorescence at particular wavelengths when cleaved by target enzymes. Preferred compounds include sugar and peptide derivatives of umbelliferone derivatives bearing a heterocyclic five membered ring at the 3-position. These compounds can be used for rapidly detecting food pathogens and for determining sterilization effectiveness. The compounds may also be used in a form bounded to a polymeric support or to a biomolecule or macromolecule.

US Patent:

6635690, Oct 21, 2003

Filed:

Jun 19, 2001

Appl. No.:

09/884173

Inventors:

Steven M. Heilmann - Afton MN
Babu N. Gaddam - Woodbury MN
Ahmed S. Abuelyaman - Woodbury MN
Duane D. Fansler - Dresser WI
Todd D. Jones - St. Paul MN
Maureen A. Kavanagh - Stanchfield MN
Kevin M. Lewandowski - Inver Grove Heights MN
Michael S. Wendland - North St. Paul MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08L 8700

US Classification:

522111, 522112, 525 63, 525 66, 528 44, 528 59, 528403, 528422

Abstract:

The present invention provides novel compositions prepared from a first oligomer containing reactive functional groups capable of reaction at effective rates (at normal processing temperatures) with a co-reactive second component possessing functionality that is complementary to that of the first oligomer. The compositions may be used as coatings, including hard surface coatings, clear coatings, powder coatings and pattern coatings; as adhesives, including pressure sensitive adhesives and hot melt adhesives; as sealants; as optical coatings; as blown microfibers (BMF); as high refractive index optical materials; as barrier films; in microreplication; as low adhesion backsizes, (LABs) and as release coatings.

US Patent:

6664306, Dec 16, 2003

Filed:

Jul 22, 2002

Appl. No.:

10/200673

Inventors:

Babu N. Gaddam - Woodbury MN
Steven M. Hellmann - Afton MN
Ahmed S. Abuelyaman - Woodbury MN
Maureen A. Kavanagh - Stanchfield MN
Duane D. Fansler - Dresser WI
Kevin M. Lewandowski - Inver Grove Heights MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 246

US Classification:

522 6, 522 8, 522 35, 522904, 522150, 522153, 522157, 522178, 522182, 522184, 522114, 522113, 522120, 522121, 522125, 526328, 5263285, 427508, 427487, 427516, 4272071

Abstract:

This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100Â C.

US Patent:

6677413, Jan 13, 2004

Filed:

Feb 5, 2003

Appl. No.:

10/358724

Inventors:

Kevin M. Lewandowski - Inver Grove Heights MN
Duane D. Fansler - Dresser WI
Michael S. Wendland - North Saint Paul MN
Babu N. Gaddam - Woodbury MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 200

US Classification:

526204, 526217, 526222, 526224, 526265, 526271, 526287, 526291, 5263031, 526304, 526306, 5263171, 5263182, 526319, 526335, 526346, 526260

Abstract:

Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.

US Patent:

6680362, Jan 20, 2004

Filed:

Feb 5, 2003

Appl. No.:

10/358767

Inventors:

Duane D. Fansler - Dresser WI
Kevin M. Lewandowski - Inver Grove Heights MN
Michael S. Wendland - North Saint Paul MN
Babu N. Gaddam - Woodbury MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F 200

US Classification:

526217, 526222, 526224, 526265, 526271, 526287, 526291, 5263031, 526304, 526306, 5263171, 5263182, 526319, 526335, 526347

Abstract:

Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.

US Patent:

6753391, Jun 22, 2004

Filed:

May 5, 2003

Appl. No.:

10/429438

Inventors:

Kevin M. Lewandowski - Inver Grove Heights MN
Duane D. Fansler - Dresser WI
Michael S. Wendland - North Saint Paul MN
Babu N. Gaddam - Woodbury MN
Steven M. Heilmann - Afton MN

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

C08F 406

US Classification:

526146, 526135, 526147, 526204, 526220, 525314, 549200, 549429, 549482, 549483, 549498

Abstract:

Chain transfer agents for controlled radical polymerizations (RAFT) are described. The chain transfer agents have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.