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. 27, 2024
Filed:
Jun. 25, 2020
Applicants:
Dow Global Technologies Llc, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
Inventors:
Yuanqiao Rao, Collegeville, PA (US);
Nikhil J. Fernandes, Collegeville, PA (US);
Hyunwoo Kim, Freeport, TX (US);
Lei Liu, Freeport, TX (US);
Assignees:
DOW Global Technologies LLC, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/00 (2019.01); B29B 9/04 (2006.01); B29B 9/12 (2006.01); B29C 48/07 (2019.01); B29C 48/21 (2019.01); B29C 48/71 (2019.01); B29K 33/00 (2006.01); B29K 69/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/001 (2019.02); B29B 9/04 (2013.01); B29B 9/12 (2013.01); B29C 48/022 (2019.02); B29C 48/07 (2019.02); B29C 48/21 (2019.02); B29C 48/71 (2019.02); B29B 2009/125 (2013.01); B29K 2033/12 (2013.01); B29K 2069/00 (2013.01);
Abstract
Described herein are UV reflective particles, and methods of forming UV reflective particles, comprising extruding a film having a plurality of alternating layers of polycarbonate (PC) and poly(methyl methacrylate) (PMMA), wherein each layer is less than 150 nm thick, and grinding the film into particles having a median particle size less than 200 microns.