The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2022
Filed:
Mar. 29, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Christopher B. Walker, Jr., St. Paul, MN (US);
Toheeb B. Alabi, Woodbury, MN (US);
Kui Chen-Ho, Woodbury, MN (US);
John C. Clark, Maplewood, MN (US);
Jeremy P. Gundale, Woodbury, MN (US);
Vivek Krishnan, St. Paul, MN (US);
Alexander J. Kugel, Woodbury, MN (US);
Mikhail L. Pekurovsky, Bloomington, MN (US);
Chris A. Pommer, Woodbury, MN (US);
Matthew S. Stay, Minneapolis, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Described herein is an article having a microsphere layer comprising a monolayer of microspheres, the monolayer of microspheres comprising a first area substantially free of microspheres and a second area comprising a plurality of randomly-distributed microspheres, wherein the monolayer of microspheres comprises a predetermined pattern, the predetermined pattern comprises at least one of (i) a plurality of the first areas, (ii) a plurality of the second areas, and (iii) combinations thereof; and (b) a bead bonding layer disposed on the microsphere layer, wherein the plurality of microspheres are partially embedded in a first major surface of the bead bonding layer, wherein the article has a retroreflectivity (R) of less than 5.0 candelas/lux/square meter. Also disclosed herein are transfer carriers and methods of making the articles and transfer carriers.