3m Innovative Properties Company

Mark A Wright

Thomas P Hanschen

Jung-Sheng Wu

Raymond R Rivera

David Robert Mekala

Raymond R Gosselin

Julian B Cooley

A composite material includes a plurality of fibers embedded in a metal matrix. The composite material further includes a plurality of particles disposed in the metal matrix. At least 25% of the fibers contact or are spaced less than 0.2 micrometers from an adjacent fiber within the metal matrix.

Particle loaded, fiber-reinforced composite materials

The invention is a tamper indicating device including a backing. The backing includes a first phase and a second phase. The backing is normally light transmissive, but a peeling force causes the backing to internally delaminate and become opaque. A first skin layer is fixed to the backing wherein the skin layer minimizes pre-destruction of the backing. A layer of adhesive is applied to the first skin layer, which can be affixed to a substrate.

Tamper indicating device

Growing community of inventors

Hudson, WI, United States of America

Mark A Wright