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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.:

US 12070884 B1

PDFFull Text
Date of Patent:
Aug. 27, 2024

Filed:

Jun. 25, 2020

Methods of making uv reflective particles

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:

Condo Roccia Koptiw LLP

Primary Examiner:

Robert J Grun

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.

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Rao, Yuanqiao. (2024). Methods of making uv reflective particles (U.S. Patent No. 12070884). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12070884

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