Charles M Leir

6441118, Aug 27, 2002

Sep 26, 1997

08/930403

Audrey A. Sherman - St. Paul MN
Walter R. Romanko - Austin TX
Albert I. Everaerts - Oakdale MN
Charles M. Leir - Falcon Heights MN
Mieczyslaw H. Mazurek - Roseville MN
Constance J. Nelson - Woodbury MN

3M Innovative Properties Company - St. Paul MN

C08G 7726

528 28

The present invention provides polydiorganosiloxane oligourea segmented copolymers. The copolymers contain soft polydiorganosiloxane units, hard segments that are diisocyanate residues, the polydiorganosiloxane units and diisocyanate residues being connected by urea linkages, and terminal groups that are non-reactive, reactive under free radical or moisture cure conditions, or amines. The invention also provides methods of preparing the copolymers.

6518360, Feb 11, 2003

Aug 31, 2000

09/652637

Ronald W. Ausen - St. Paul MN
Kevin T. Grove - Woodbury MN
Charles M. Leir - Falcon Heights MN
Audrey A. Sherman - St. Paul MN
Walter R. Romanko - Austin TX

3M Innovative Properties Company - St. Paul MN

C08L 5100

525 64, 525 77, 525 79, 525102, 525106, 525242

An essentially solventless process for preparing a hot melt-processable release material comprises the step of providing reactants to a reactor, wherein the reactants comprise at least one backbone polymer having a grafting site that is reactive with a release component to selectively form a release moiety substituent at the grafting site; and a release component that is reactive with the grafting site. The release component is used in an effective amount for imparting release properties to the resulting release material. Also disclosed are release materials preparable thereby and coated substrates comprising the release material. Advantageously, release materials of the present invention are preparable and coatable using a single extruder.

6627216, Sep 30, 2003

Feb 15, 2001

09/784385

Patricia J. Andolino Brandt - Woodbury MN
Charles M. Leir - Falcon Heights MN
David J. Wirtanen - Stillwater MN

3M Innovative Properties Company - St. Paul MN

A61K 970

424443

The present invention provides novel âpatch in a bottleâ technology in which a fluid composition, e. g. , an aerosol spray, is applied onto a surface as a fluid, but then dries to form a covering element, such as a patch, having a tack free outer surface covering an underlying adhesive that helps adhere the patch to the substrate. The fluid compositions have a unique chemical formulation that allows such composite patches to form in situ. Specifically, the fluid compositions include a tacky component, such as an adhesive, and a film-forming, non-tacky component. The non-tacky and tacky components are selected to be immiscible with each other so that the components undergo phase separation as the fluid composition dries.

6652970, Nov 25, 2003

Jul 7, 2000

09/612016

Albert I. Everaerts - Oakdale MN
Charles M. Leir - Falcon Heights MN
Roger A. Mader - Stillwater MN
Peter A. Stark - Cottage Grove MN

3M Innovative Properties Company - St. Paul MN

B32B 904

4284111, 428501, 428502, 428521, 428522, 428524, 156 82, 156283, 1563096, 1563099, 156325, 156326, 1563313, 522 33, 522 36, 522 39

The present invention is directed toward compositions that are chemically different after application to a substrate as compared to the composition prior to its application. A method of the invention comprises a method of transitioning a crosslinked polymer composition from a first chemical state to a second chemical state. Advantageously, compositions of the invention are relatively stable after transformation to their altered, or second, chemical state.

6824820, Nov 30, 2004

Jul 30, 1999

09/355601

David J. Kinning - Woodbury MN
Charles M. Leir - Falcon Heights MN
Audrey A. Sherman - St. Paul MN
Meherdil D. Dastur - St. Paul MN

3M Innovative Properties Company - St. Paul MN

B05D 510

4272084, 4272086, 4272088, 524270, 524505, 524589, 428343, 428349

An adhesive composition comprising a silicone free polyurea-based polymer, comprising a segmented copolymer, wherein the copolymer comprises repeating units of Formula I: wherein: each B is independently a polyvalent radical selected form a group consisting of arylene, aralkylene, cycloalkylene, polyoxyalkylene, or mixtures thereof; each D is independently selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, a phenyl group, a group that completes a ring structure that includes B to form a heterocycle, and mixtures thereof; each Z is independently a polyvalent radical having about 1 to about 20 carbon atoms; each Y is independently a polyoxyalkylene; m is an integer greater than zero; and a is zero or an integer greater than zero; and wherein the composition comprises a tackifier in an amount sufficient to provide the adhesive composition as a pressure sensitive adhesive and in an amount less than about 45 parts by weight tackifier per hundred part by weight polyurea-based polymer.

6958154, Oct 25, 2005

Jul 14, 2003

10/619008

Patricia J. Andolino Brandt - Woodbury MN, US
Charles M. Leir - Falcon Heights MN, US
David J. Wirtanen - Stillwater MN, US

3M Innovative Properties Company - St. Paul MN

A61K009/00

424400, 424443, 424449

The present invention provides novel “patch in a bottle” technology in which a fluid composition, e. g. , an aerosol spray, is applied onto a surface as a fluid, but then dries to form a covering element, such as a patch, having a tack free outer surface covering an underlying adhesive that helps adhere the patch to the substrate. The fluid compositions have a unique chemical formulation that allows such composite patches to form in situ. Specifically, the fluid compositions include a tacky component, such as an adhesive, and a film-forming, non-tacky component. The non-tacky and tacky components are selected to be immiscible with each other so that the components undergo phase separation as the fluid composition dries.

7169933, Jan 30, 2007

Nov 14, 2003

10/713174

Karl E. Benson - St. Paul MN, US
Moses M. David - Woodbury MN, US
Cary A. Kipke - Woodbury MN, US
Brinda B. Lakshmi - Woodbury MN, US
Charles M. Leir - Falcon Heights MN, US
George G. Moore - Afton MN, US
Rahul Shah - Woodbury MN, US

3M Innovative Properties Company - St. Paul MN

C07D 275/04

548207, 548209, 548213, 548214, 548110, 564 84

Compounds having two reactive functional groups are described that can be used to provide a connector group between a substrate and an amine-containing material. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonylaminocarbonyl group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a carbonylimino-containing connector group. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.

7179923, Feb 20, 2007

Nov 12, 2004

10/987522

Karl E. Benson - St. Paul MN, US
Moses M. David - Woodbury MN, US
Cary A. Kipke - Woodbury MN, US
Brinda B. Lakshmi - Woodbury MN, US
Charles M. Leir - Falcon Heights MN, US
George G. I. Moore - Afton MN, US
Rahul R. Shah - Woodbury MN, US

3M Innovative Properties Company - St. Paul MN

C07D 275/06
C07C 311/00
H05H 1/24
C23C 16/00

548210, 564 96, 310313, 435 6, 427577, 118718

Compounds having two reactive functional groups are described that can be used to provide a connector group between a substrate and an amine-containing material. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonylaminocarbonyl group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a carbonylimino-containing connector group. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.