Abstract: Retroreflective sheeting articles comprising a colorless thermal mass transferred image, methods of thermal mass transfer printing substrate such as polymeric films with a colorless thermal mass transferable composition, and thermal mass transfer ribbon articles comprising a colorless thermal mass transferable composition are described. The thermal mass transfer composition comprises a homogeneous unreactive thermoplastic composition comprising at least one acrylic resin and less than 3 wt-% of components that are opaque at ambient temperature.
Type:
Grant
Filed:
November 22, 2006
Date of Patent:
June 21, 2011
Assignee:
3M Innovative Properties Company
Inventors:
Jennifer L. Lee, Mark W. Leverty, Scott A. Boyd, Eugene H. Carlson, Lisa Flatt Nelson
Abstract: The present invention relates to retroreflective elements and retroreflective articles such as pavement markings comprising retroreflective elements, methods of making retroreflective elements, and laminates.
Type:
Grant
Filed:
February 20, 2008
Date of Patent:
December 2, 2008
Assignee:
3M Innovative Properties Company
Inventors:
Rebecca A. Shipman, Craig S. Chamberlain, James D. Heininger, Thomas P. Hedblom, Douglas E. Weiss, Gerald S. Deeb