Mark T Weigel

US Patent:

6800156, Oct 5, 2004

Filed:

Aug 2, 2002

Appl. No.:

10/211361

Inventors:

Timothy M. Dietz - Mendota Heights MN
Gerald F. Fleischhacker - White Bear Lake MN
Larry S. Hebert - Hudson WI
Thomas J. Packard - Somerset WI
Mark D. Weigel - Hugo MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 3100

US Classification:

156 64, 158344, 73150 A

Abstract:

The present invention relates to indicators of surface preparation and methods of making such indicators.

US Patent:

8628859, Jan 14, 2014

Filed:

Apr 23, 2012

Appl. No.:

13/453569

Inventors:

Mark D. Weigel - Hugo MN, US
Mark A. Roehrig - Stillwater MN, US
Alan K. Nachtigal - Minneapolis MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 27/06
B05D 1/36

US Classification:

428451, 427 74, 4274122, 4274125, 4274192, 4274198

Abstract:

A barrier film is disclosed that includes a polymeric film substrate and at least first and second polymer layers separated by an inorganic barrier layer. The first polymer layer is disposed on the polymeric film substrate. At least one of the first or second polymer layers is prepared from co-deposited amino silane and acrylate or methacrylate monomer. A method of making the barrier film is also disclosed.

US Patent:

20040021312, Feb 5, 2004

Filed:

Aug 2, 2002

Appl. No.:

10/211081

Inventors:

Timothy Dietz - Mendota Heights MN, US
Sithya Khieu - Eden Prairie MN, US
Mark Weigel - Hugo MN, US

International Classification:

B42D015/00

US Classification:

283/081000

Abstract:

The invention relates to adhesive security labels that indicate tampering.

US Patent:

20120003448, Jan 5, 2012

Filed:

Jul 1, 2011

Appl. No.:

13/175598

Inventors:

Mark D. Weigel - Hugo MN, US
Mark A. Roehrig - Stillwater MN, US
Alan K. Nachtigal - Minneapolis MN, US
Samuel Kidane - St. Paul MN, US
Andrew J. Henderson - Eagan MN, US

International Classification:

B32B 7/02

US Classification:

428212, 428213

Abstract:

An assembly that includes a barrier film interposed between a first polymeric film substrate and a first major surface of a pressure sensitive adhesive layer is provided. The first polymeric film substrate has a first coefficient of thermal expansion that is, in some embodiments, up to 50 parts per million per Kelvin. The pressure sensitive adhesive layer has a second major surface opposite the first major surface that is disposed on a second polymeric film substrate. The second polymeric film substrate is typically resistant to degradation by ultraviolet light. In some embodiments, the second polymeric film substrate has a second coefficient of thermal expansion that is at least 40 parts per million per Kelvin higher than the first coefficient of thermal expansion. The assembly is transmissive to visible and infrared light.

US Patent:

20120003451, Jan 5, 2012

Filed:

Jul 1, 2011

Appl. No.:

13/175495

Inventors:

Mark D. Weigel - Hugo MN, US
Mark A. Roehrig - Stillwater MN, US
Alan K. Nachtigal - Minneapolis MN, US
Samuel Kidane - St. Paul MN, US
Andrew J. Henderson - Eagan MN, US

International Classification:

B32B 27/08
B32B 27/36
B32B 27/42
B32B 7/12
B32B 7/02

US Classification:

428213, 428212

Abstract:

An assembly that includes a barrier film interposed between a first polymeric film substrate and a first major surface of a pressure sensitive adhesive layer is provided. The first polymeric film substrate has a first coefficient of thermal expansion that is, in some embodiments, up to 50 parts per million per Kelvin. The pressure sensitive adhesive layer has a second major surface opposite the first major surface that is disposed on a second polymeric film substrate. The second polymeric film substrate is typically resistant to degradation by ultraviolet light. In some embodiments, the second polymeric film substrate has a second coefficient of thermal expansion that is at least 40 parts per million per Kelvin higher than the first coefficient of thermal expansion. The assembly is transmissive to visible and infrared light.

US Patent:

53227310, Jun 21, 1994

Filed:

Mar 9, 1993

Appl. No.:

8/028338

Inventors:

Joseph P. Callahan - St. Paul MN
Rudyard M. Enanoza - Woodbury MN
Mark D. Weigel - Vadnais Heights MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 900

US Classification:

428327

Abstract:

Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.

US Patent:

56250061, Apr 29, 1997

Filed:

Jan 24, 1996

Appl. No.:

8/590884

Inventors:

Joseph P. Callahan - St. Paul MN
Rudyard M. Enanoza - Woodbury MN
Mark D. Weigel - Vadnais Heights MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

C08F26502
C08F26304
C08F26504
C08L 3302

US Classification:

525301

Abstract:

Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.

US Patent:

55996183, Feb 4, 1997

Filed:

Nov 15, 1994

Appl. No.:

8/339925

Inventors:

Joseph P. Callahan - St. Paul MN
Rudyard M. Enanoza - Woodbury MN
Michael S. Groess - Oakdale MN
Mark D. Weigel - Vadnais Heights MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 516

US Classification:

428323

Abstract:

The present invention provides pressure-sensitive adhesive beads that comprise a tacky pressure-sensitive adhesive core and a non-tacky shell material that surrounds the area wherein the beads are capable of being positioned via magnetic means. The present invention also provides method(s) of preparing adhesive coated substrates using pressure-sensitive adhesive bead(s) that are magnetically responsive, electrostatically responsive or both by using magnetic forces, electrostatic forces or both.