Avery Dennison Corporation

James River Paper Company, Inc.

Richard M Thomas

Karl Josephy

James P Rettker

Dennis Rene Benoit

Richard G Miekka

Charles C Habeger, Jr

Kenneth A Pollart

Richard G Meikka

A process for preparing embossed, finely-divided, thin, bright-metal particles which process comprises forming an embossed release surface to al least one side of a carrier sheet, depositing a metal film onto the release surface so that the metal film conforms to the embossed surface, solubilizing the release surface, removing the metal film from the carrier sheet, and breaking the thin metal film onto embossed particles having an average diameter of between 10 to 50 microns. The film may also take the form of an optical stack.

Process for making machine readable images

Finely divided embossed metal particles are prepared by forming an embossment on a carrier surface in which the embossment comprises a machine readable image produced by a diffraction grating pattern, a holographic image pattern or an image visible solely by optical magnification. A layer of metal is applied to the surface so the layer adopts the complement or the embossment. The layer is then separated from the surface and reduced to embossed particles. Alternatively, the embossment can be formed on the carrier sheet directly or on the outer surface of a release coating formed on the carrier sheet. When removing the film of metal from the release-coated carrier, the carrier sheet with the release coating and film of metal can be passed through a release environment which causes the release coating to separate the film and carrier, but which is nondestructive of the metal. The metal particles can be collected in a solvent which is nonreactive with the metal, and the metal particles can be broken further into pigment particles. The diffraction grating can have from about 5,000 to about 11,000 grooves per cm.

A process for preparing embossed, finely-divided, thin, bright-metal particles which process comprises forming an embossed release surface to at least one side of a carrier sheet, depositing a metal film onto the release surface so that the metal film conforms to the embossed surface, solubilizing the release surface, removing the metal film from the carrier sheet, and breaking the thin metal film into embossed particles having an average diameter of between 25 to 50 microns. The film may also take the form of an optical stack.

Embossed metallic leafing pigments

A method of identifying an object by a machine readable image applied to it in which the image is produced by a plurality of fine particles embossed with a machine readable pattern produced by replicating contact with a diffraction grating having from about 5,000 to about 11,000 grooves per cm.

Embossed, finely-divided, thin, bright-metal particles are prepared by forming an embossed release surface on at least one side of a carrier sheet in which the embossed pattern comprises a diffraction grating having from about 5,000 to 11,000 grooves per cm. A metal film is deposited on the release surface so that the metal film conforms to the embossed surface. The carrier sheet is passed with the release surface and the metal film through a release environment which causes the release surface to separate from the metal film. The metal film is removed from the release surface in a particulate form to produce metal particles substantially free of the release surface. The particles are collected in a solvent which is non-reactive with the metal. The metal particles are then broken into pigment particles having an average diameter between about 10 to about 50 microns. The film may also take the form of an optical stack.

Process for making embossed metallic leafing pigments

A food package including a package body forming a food receiving cavity for storing and heating a food item in a microwave oven. Specifically, the package body includes a bottom panel and a top panel with side panels joining the bottom and top panel. An impedance matching element is provided on at least one of the panels for impedance matching microwave energy entering the package. The impedance matching element is preferably a contiguous film of thinly flaked material embedded in a dielectric binder which is sized and shaped with respect to the food to cause impedance matching to elevate the temperature of the food in predetermined areas dependent upon the size and spacing of the film without interacting with the microwave energy to produce heat. The film may also be shaped in the form of a convex lens to direct impedance matched microwave energy toward the food to elevate the temperature of the food in a predetermined area. Further, the flake material may be present in the binder in an amount sufficient to provide microwave shielding.

Growing community of inventors

Dyer, IL, United States of America

Richard M Thomas