Patent Number: 6,251,212

Title: Multilayer, temperature resistant, composite label

Abstract: A composite material suitable for labeling a substrate. The composite material, which is preferably a ceramic composite, comprises a fired ceramic body and a layer thereon. The fired ceramic body includes a base layer that comprising a glassy phase and a refractory phase, the glassy phase being capable of wetting a substrate at an application temperature. There is sufficient color contrast between the top layer and the fired ceramic body such that a code pattern (e.g., a bar code) present (or formed) is optically discernible. Methods of making and using the same are also taught.

Inventors: Moh; Kyung H. (Woodbury, MN), Lacave; Daniel (Neus, DE), Sueoss; Bernardus M. (Moenchengladbach, DE)

Assignee: 3M Innovative Properties Company

International Classification: G09F 3/02 (20060101); B32B 031/00 (); B65C 001/00 ()

Expiration Date: 06/26/2018