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:
Sep. 30, 2025
Filed:
Dec. 21, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Michael J. Sykora, New Richmond, WI (US);
Kui Chen-Ho, Woodbury, MN (US);
Guy M. Kallman, Woodbury, MN (US);
Ellen O. Aeling, Oakdale, MN (US);
Kaitlin R. Mohs, Lake Elmo, MN (US);
Patrick J. Yeshe, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
This disclosure describes a composition that includes a bulk diffuser that includes a film having a major surface; the film includes a polymer, and a scattering element. The scattering element includes a silicone bead having a mean particle diameter in a range of 2 micrometers (μm) to 9 μm. The linear density of the film is at least 5.1 W*μm, wherein the linear density equals the product of the mass fraction of the silicone bead (W) and film thickness in micrometers (μm). This disclosure further describes methods of making the film and the bulk diffuser and methods of using the film including, for example, as a bulk diffuser in a sign box.