3m Innovative Properties Company

Matthew R Lehmann

Kurt J Halverson

Caroline M Ylitalo

Shri Niwas

Kenneth L Hanzalik

Denise A Barrera

Loretta L Lucas

Douglas J Hall

Steven J Botzet

David B Running

Jessica L Voss-Kehl

Alyson C Phillips

Loretta L Freeman

Provided is a retroreflective article comprising a fibrous material and a perforated retroreflective material attached to said fibrous material. Embodiments of the article achieve desirable values under the ASTM F2731-11 Transmitted and Stored Energy Test, the E96/E96M-12 Moisture Vapor Transmission Rate Test, and ASTM E810-03 (2013) Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry.

Retroreflective article

Methods of creating fine featured circuits by printing a circuit trace onto polymer shrink films or other biaxially-oriented polymer films are disclosed. The shrink films are heated and shrunk after printing, annealing the circuit trace to form conductive features. Compositions suitable for printing onto the films and articles made using the method and composition are also disclosed.

Printed circuits on shrink film

Growing community of inventors

Stillwater, MN, United States of America

Matthew R Lehmann