Bonnie W Albrecht

US Patent:

6593380, Jul 15, 2003

Filed:

Nov 27, 2001

Appl. No.:

09/994418

Inventors:

Mark David Gehlsen - Eagan MN
David Loren Vall - Woodbury MN
Craig Allen Perman - Woodbury MN
Bonnie Weiskopf Albrecht - Lake Elmo MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08J 912

US Classification:

521 50, 521 79, 4283155, 4283157, 4283173, 4283175

Abstract:

A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.

US Patent:

6623674, Sep 23, 2003

Filed:

Nov 16, 2000

Appl. No.:

09/714408

Inventors:

Mark David Gehlsen - Eagan MN
David Loren Vall - Woodbury MN
Bonnie Weiskopf Albrecht - Lake Elmo MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B29C 4406

US Classification:

264 455, 156 79, 264 464, 264 50, 264 54

Abstract:

The invention discloses reduced density foams and methods of making the foams by applying or creating a nonfoaming barrier layer on a foamable layer, which barrier layer inhibits the escape of fugitive gases during the foaming process.

US Patent:

6638985, Oct 28, 2003

Filed:

Nov 27, 2001

Appl. No.:

09/994417

Inventors:

Mark David Gehlsen - Eagan MN
David Loren Vall - Woodbury MN
Craig Allen Perman - Woodbury MN
Bonnie Weiskopf Albrecht - Lake Elmo MN

Assignee:

3M Innovative Properties Co. - St. Paul MN

International Classification:

C08J 912

US Classification:

521 79, 521 97, 264 51, 2641761

Abstract:

A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.

US Patent:

7083849, Aug 1, 2006

Filed:

Jun 4, 1999

Appl. No.:

09/325963

Inventors:

Bonnie Weiskopf Albrecht - Lake Elmo MN, US
Mark David Gehlsen - Eagan MN, US
Connie Lynn Hubbard - River Falls WI, US
David Loren Vall - Woodbury MN, US
Bryan C. Feisel - Hudson WI, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 3/26
B32B 7/12
B32B 9/00
B05D 5/10

US Classification:

4283044, 4283166, 4283171, 4283173, 4283184, 428343, 428354, 427208

Abstract:

A continuous method for making porous foam and the foam articles are described. The method allows for tailoring the porosity of the foam by controlling process variables including draw rate and blowing agent concentration. A method for co-extruding the foams with other materials is also described.

US Patent:

7329887, Feb 12, 2008

Filed:

Dec 2, 2003

Appl. No.:

10/726225

Inventors:

Gordon D. Henson - Lake Elmo MN, US
Bonnie Weiskopf Albrecht - Lake Elmo MN, US
Donald K. Larson - Cedar Park TX, US
John J. Simbal - Lakeway TX, US
Michael A. Meis - Stillwater MN, US
Michael E. Griffin - Maplewood MN, US
Bruce R. Broyles - Oakdale MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01J 1/62

US Classification:

2504941, 313501, 359726

Abstract:

A photon emitting device comprises a plurality of solid state radiation sources to generate radiation. The solid state radiation sources can be disposed in an array pattern. Optical concentrators, arranged in a corresponding array pattern, receive radiation from corresponding solid state radiation sources. The concentrated radiation is received by a plurality of optical waveguides, also arranged in a corresponding array pattern. Each optical waveguide includes a first end to receive the radiation and a second end to output the radiation. A support structure is provided to stabilize the plurality of optical waveguides between the first and second ends. The photon emitting device can provide a replacement for a discharge lamp device in various applications including road illumination, spot lighting, back lighting, image projection and radiation activated curing.

US Patent:

8004622, Aug 23, 2011

Filed:

Sep 30, 2008

Appl. No.:

12/241502

Inventors:

John C. Schultz - Afton MN, US
Michael J. Sykora - Deer Park WI, US
Martin Kristoffersen - Maplewood MN, US
Kathy L. Hagen - Stillwater MN, US
Glenn E. Casner - Woodbury MN, US
Bonnie W. Albrecht - Lake Elmo MN, US
Robert L. Brott - Woodbury MN, US
Scott E. Brigham - Maplewood MN, US
John C. Nelson - The Sea Ranch CA, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

G02F 1/1335

US Classification:

349 15

Abstract:

An LCD device with 3D and 2D sections. The device includes an LCD panel, a light guide with a backlight, and an embedded 3D-2D film stack positioned between the LCD panel and the light guide. The 3D and 2D sections provide for simultaneously viewing visual content in 3D and 2D formats. The device can also include a frame providing a barrier between the 3D and 2D sections and can include other features to enhance the display.

US Patent:

20020151607, Oct 17, 2002

Filed:

Nov 27, 2001

Appl. No.:

09/994230

Inventors:

Mark Gehlsen - Eagan MN, US
David Vall - Woodbury MN, US
Craig Perman - Woodbury MN, US
Bonnie Albrecht - Lake Elmo MN, US

Assignee:

3M Innovative Properties Company

International Classification:

C08J009/00

US Classification:

521/050000

Abstract:

A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.

US Patent:

20020151608, Oct 17, 2002

Filed:

Nov 27, 2001

Appl. No.:

09/994237

Inventors:

Mark Gehlsen - Eagan MN, US
David Vall - Woodbury MN, US
Craig Perman - Woodbury MN, US
Bonnie Albrecht - Lake Elmo MN, US

Assignee:

3M Innovative Properties Company

International Classification:

C08J009/00

US Classification:

521/050000

Abstract:

A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.