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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 12515253 B1

PDFFull Text
Date of Patent:
Jan. 06, 2026

Filed:

Apr. 23, 2020

Compositions, comprising silver nanoplatelets

Applicant:

Basf SE, Ludwigshafen am Rhein, DE;

Inventors:

Nikolay A. Grigorenko, Basel, CH;

Andre Oswald, Schweizerhalle, CH;

Michelle Richert, Basel, CH;

Assignee:

BASF SE, Ludwigshafen am Rhein, DE;

Attorney:

Faegre Drinker Biddle & Reath LLP

Primary Examiner:

Pegah Parvini

Int. Cl.
CPC ...
B22F 9/24 (2006.01); B22F 1/054 (2022.01); B22F 1/0545 (2022.01); B22F 1/103 (2022.01); B22F 1/107 (2022.01); B42D 25/364 (2014.01); B42D 25/373 (2014.01); B42D 25/378 (2014.01); C08K 3/08 (2006.01); C08K 9/04 (2006.01); C09D 7/40 (2018.01); C09D 7/62 (2018.01);
U.S. Cl.
CPC ...
B22F 9/24 (2013.01); B22F 1/0545 (2022.01); B22F 1/0551 (2022.01); B22F 1/103 (2022.01); B22F 1/107 (2022.01); B42D 25/373 (2014.10); C08K 3/08 (2013.01); C08K 9/04 (2013.01); C09D 7/62 (2018.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C09D 7/70 (2018.01); B42D 25/364 (2014.10); B42D 25/378 (2014.10); C08K 2003/0806 (2013.01); C08K 2201/003 (2013.01); C08K 2201/011 (2013.01);
Abstract

The present invention relates to compositions, comprising silver nanoplatelets, wherein the number mean diameter of the silver nanoplatelets, present in the composition, is in the range of 50 to 150 nm with standard deviation being less than 60% and the number mean thickness of the silver nanoplatelets, present in the composition, is in the range of 5 to 30 nm with standard deviation being less than 50%, wherein the mean aspect ratio of the silver nanoplatelets is higher than 2.0 and the highest wavelength absorption maximum of the population of all silver nanoplatelets in the composition being within the range of 560 to 800 nm. A coating, comprising the composition, shows a blue color in transmission and a metallic yellow color in reflection.

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