Flex Products, Inc.

Jds Uniphase Corporation

David W Todd

Roger Winston Phillips

Lauren R Wendt

Myra Tan-Johnson

Charles Thomas Markantes

Lindsey Brown

Elliot E Overshiner

Paul G Coombs

Marc A Kamerling

Vernon C Spellman

Wayne L Gossett

Steven A Silver

Barrier film with a high colorless transparency comprising a flexible plastic substrate. A barrier layer is formed on the surface and has a thickness ranging from approximately 50 to less than 200 Angstroms and is formed of a material selected from the group of aluminum oxide, tin oxide and yttrium oxide. An additional barrier layer formed of silicon dioxide may also be formed on the barrier layer.

Barrier film having high colorless transparency and method

Method for forming barrier film

Barrier film with a high colorless transparency comprising a flexible plastic substrate. A barrier layer is formed on the surface and has a thickness ranging from approximately 50 to 100 Angstroms and is formed of a material selected from the group of aluminum oxide, tin oxide and yttrium oxide. An additional barrier layer formed of silicon dioxide may also be formed on the barrier layer.

Method for providing a patterned thin film on a flexible web-like substrate having at least one surface. A patterned release coating which carries the desired pattern is deposited on the surface and has openings therein through which the surface of the substrate is exposed. A thin film is deposited over the patterned release coat and onto the portions of the surface exposed through the openings. The patterned release coating is then removed and the thin film portions carried thereby to provide a patterned thin film on the substrate.

Method for making patterned thin film

Method for providing a patterned thin film on a flexible web-like substrate having at least one surface. A patterned release coating which carries the desired pattern is deposited on the surface and has openings therein through which the surface of the substrate is exposed. A thin film is deposited over the patterned release coat and onto the portions of the surface exposed through the openings. The patterned release coating is then removed mechanically along with the thin film portions carried thereby to provide a patterned thin film on the substrate. The mechanical removal may be accomplished by advancing the coated substrate through a solvent while brushing the substrate, subjecting the substrate to high velocity air, or contacting the substrate with the adhesive layer of a web.

Tamper evident optical device comprising a substrate and a multi-layer taper evident splittable coating carried by the substrate. The coating has a release region formed therein. An adhesive is secured to the tamper evident coating.

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Sebastopol, CA, United States of America

David W Todd