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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 12570870 B1

PDFFull Text
Date of Patent:
Mar. 10, 2026

Filed:

Apr. 08, 2020

Curable compositions, abrasion-resistant articles, and method of thermoforming the same

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Chunjie Zhang, Shoreview, MN (US);

Jung-Sheng Wu, Woodbury, MN (US);

Thomas P. Klun, Lakeland, MN (US);

Richard J. Pokorny, Maplewood, MN (US);

Benjamin R. Coonce, South St. Paul, MN (US);

Gregg A. Ambur, River Falls, WI (US);

Assignee:

3M Innovative Properties Company, St. Paul, MN (US);

Attorneys:

Julie Lapos-Kuchar

Bradford B. Wright

Primary Examiner:

Sheeba Ahmed

Int. Cl.
CPC ...
C09D 175/14 (2006.01); B05D 5/00 (2006.01); B05D 7/00 (2006.01); C08G 18/24 (2006.01); C08G 18/67 (2006.01); C08G 18/73 (2006.01); C08K 3/22 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); G02B 1/04 (2006.01); G02B 1/14 (2015.01); B29C 51/14 (2006.01); B29K 75/00 (2006.01); B29K 509/02 (2006.01);
U.S. Cl.
CPC ...
C09D 175/14 (2013.01); B05D 5/00 (2013.01); B05D 7/56 (2013.01); B05D 7/58 (2013.01); C08G 18/246 (2013.01); C08G 18/6755 (2013.01); C08G 18/73 (2013.01); C08K 3/22 (2013.01); C09D 7/61 (2018.01); C09D 7/67 (2018.01); G02B 1/04 (2013.01); G02B 1/14 (2015.01); B29C 51/14 (2013.01); B29K 2075/00 (2013.01); B29K 2509/02 (2013.01); C08K 2003/2227 (2013.01); C08K 2201/005 (2013.01); C08K 2201/011 (2013.01);
Abstract

A curable composition comprises at least one polymerizable compound and alpha-alumina particles. The alpha-alumina particles, taken as a whole, have a D50 of less than 100 nanometers. The corresponding cured composition, and an abrasion-resistant article comprising an abrasion-resistant layer comprising the reaction product disposed on a substrate are also disclosed. A method that includes thermoforming the abrasion-resistant article is also disclosed.

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