3m Innovative Properties Company

Other

Minnesota Mining and Manufacturing Company

University of Minnesota

Mark David Gehlsen

Bradley S Momchilovich

David Loren Vall

Bonnie Weiskopf Albrecht

Ryan T Fabick

Kenneth A Epstein

Craig Allen Perman

Linda Mae Rivard

James W Laumer

John James Stradinger

Ashish Kumar Khandpur

Ji-Hwa Lee

Ji-Hyung Kim

Robert M Emmons

Chideuk Kim

Youngsoo Park

Byungsoo Ko

Chingwen Chen

Robin Edgar Wright

Peter A Stark

Eric Wayne Nelson

Jingjing Ma

Byung-Soo Ko

Steven Dean Koecher

Kang-Il Seo

Douglas Gold

Sang-Dae Kim

Patrick Brant

Mario Alberto Perez

Eugene G Joseph

Patrick Darby Hyde

Frank Steven Bates

Kristin LaVelle Thunhorst

Bryan C Feisel

Christopher K Haas

Joan M Strobel

Robert Stephen Davidson

Kenneth Jason Hanley

Vasant V Kolpe

James Alan Higgins

Stephen J Etzkorn

JingJing Ma

Ravi K Sura

Anthony Robert Maistrovich

James A Stevenson

Sara B Mortenson

James T Richard

Patrick J Fischer

Barry Eugene Heldman

Kristin La Velle Thunhorst

John Ekrem Gozum

Susan E Anderson

Cheryl Lee Senger Elsbernd

Robert Dennis Waid

Chad Everett Brown

Vincent L Hughes

Timothy J Diekmann

Robert W Ferguson

Connie Lynn Hubbard

Kenneth J Hanley

Polymer foam articles prepared by melt-mixing a polymer composition and a plurality of microspheres, at least one of which is an expandable polymeric microsphere, under process conditions, including temperature and shear rate, selected to form an expandable extrudable composition; and extruding the composition through a die.

Articles that include a polymer foam and method for preparing same

In a liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. In some embodiments, the diffuser layer is attached to the lower side of the LCD panel. Some, or all, of the light management layers may be attached together as a laminated stack of films. In some embodiments, the diffuser layer is formed with a recessed region on one side and another optical film positioned within the recessed region.

Liquid crystal displays with laminated diffuser plates

In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. The diffuser layer is attached to a substrate which is separate from the light source and the LCD panel, or may be attached to either the LCD panel or, when using a two dimensional light source, to the light source. The other light management layers may also be attached to the separate substrate or to the LCD panel or two-dimensional light source. High levels of illumination uniformity at the LCD may be achieved with a uniform (non-patterned) diffuser, even with relatively low levels of diffusion, when the diffuser is used with a brightness enhancing layer.

Direct-LIT liquid crystal displays with laminated diffuser plates

An optical assembly includes a light diffusing layer attached to a reflective polarizing layer. An intermediate region between the light diffusing layer and the reflective polarizing layer includes an intermediate structure that defines voids between the light diffusing layer and the reflective polarizing layer.

Diffuse multilayer optical assembly

The present invention relates to a double-sided pressure sensitive adhesive foam tape. In certain embodiments the foam tape does not require the use of a release liner. Elimination of the release liner reduces the cost of the tape and also avoids problems associated with damage to the liner during traditional tape manufacturing from exposure to e-beam radiation.

Linerless double-sided pressure sensitive adhesive tape

A display system includes a display panel and a backlight disposed behind the display panel. The backlight has a light guide and at least one light source that directs light into an edge of the light guide. The light guide comprises a front layer facing the display panel, a back layer facing away from the display panel, and a plurality of connecting members connecting the front and back layers. The spaces formed between the connecting members and the upper and the first and second layers are referred to as flutes. Light from the light source may propagate along the flutes.

Edge-lit optical display with fluted optical plate

A novel polymodal asymmetric elastomeric block copolymer and a pressure sensitive adhesive, tape and adhesive backed article made therefrom, such as a polymer foam article having a substantially smooth surface prepared by melt-mixing a polymer composition and a plurality of microspheres, at least one of which is an expandable polymeric microsphere, under process conditions, including temperature and shear rate, selected to form an expandable extrudable composition; and extruding the composition through a die.

Adhesive for bonding to low surface energy surfaces

Direct-lit liquid crystal displays with laminated diffuser plates

In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management layers lie between the light source and the LCD panel to provide bright, uniform illumination. The light management layers, including, for example, a diffuser, a reflective polarizer and a brightness enhancing layer, are contained in a light management unit that is formed from two subassemblies. The two subassemblies each contain a substrate and are attached together so as to leave a gap between the two subassemblies. The diffuser is located in one of the subassemblies, and the other light management layers may be in either of the subassemblies, or may be disposed in the gap between the subassemblies.

Composite diffuser plates and direct-lit liquid crystal displays using same

The present invention is directed to a process for producing a polypropylene foam by mixing a high melt strength polypropylene and a blowing agent to form a melt mixture, reducing the temperature of the melt mixture at the exit of the apparatus to an exit temperature that is no more than 30&#xb0; C. above the melt temperature of the neat polypropylene while maintaining the melt mixture at a pressure sufficient to prevent foaming; passing the mixture through said exit shaping orifice and exposing the mixture to atmospheric pressure, whereby the blowing agent expands causing cell formation resulting in foam formation, and orienting said foam. The foam is useful as tape backings, thermal and acoustical insulation and as a diffuse reflector for use in optical applications such as computer displays.

Foam and method of making

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.

Breathable polymer foams

Growing community of inventors

Eagan, MN, United States of America

Mark David Gehlsen