3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Thomas F Serbus

Andrew John Ouderkirk

Olester Benson, Jr

Douglas Scott Dunn

David C Windorski

Charles David Hoyle

Donald J McClure

Wayne K Darvell

Lynette M Miles

Tanya M Laine

A composite including a polymeric film having a first generally planar major surface and an opposite second major surface defined by a multiplicity of elongate parallel contiguous ridge portions. The ridge portions each have a generally triangular cross section and elongate obscured and transmitting second major surface portions intersecting at the apex of the ridge with the obscured second major surface portion being on the side of the ridge generally facing a first end of the sheet and the transmitting second major surface portions being on the side of the ridge portions adjacent a second end of the sheet. The film can provide visual transmission between its first major surface and the transmitting second major surface portions while coatings along the obscured second major surface portions prevent viewing of visual images through the film; whereas the composite can also provide light transmission between the first major surface and the transmitting second major surface portions, while the coatings along the obscured second major surface portions restrict light transmission.

Composite used for light control of privacy

Composite used for light control or privacy

Growing community of inventors

Centerville, MN, United States of America

Thomas F Serbus