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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 10723915 B1

PDFFull Text
Date of Patent:
Jul. 28, 2020

Filed:

Nov. 26, 2018

Hard coating composition

Applicant:

Itoh Optical Industrial Co., Ltd., Aichi, JP;

Inventor:

Naoki Uchida, Aichi, JP;

Assignee:

Itoh Optical Industrial Co., Ltd., Aichi, JP;

Attorney:

Nakanishi IP Associates, LLC

Primary Examiner:

Peter A Salamon

Int. Cl.
CPC ...
G02B 1/14 (2015.01); C09D 183/08 (2006.01); C09D 7/62 (2018.01); C08G 77/28 (2006.01); C08K 9/04 (2006.01); G02B 1/04 (2006.01); G02B 1/113 (2015.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
C09D 183/08 (2013.01); C08G 77/28 (2013.01); C08K 3/22 (2013.01); C08K 9/04 (2013.01); C09D 7/62 (2018.01); G02B 1/041 (2013.01); G02B 1/113 (2013.01); G02B 1/14 (2015.01); C08G 2150/00 (2013.01); C08K 2003/2241 (2013.01);
Abstract

A hard coating composition applied to an optical element body formed of organic glass. The hard coating composition contains a hydrolyzate of alkoxysilane as a main agent, a polyvalent organic carboxylic acid and a nitrogen-containing compound as auxiliary agents, and a metal oxide colloid as a refractive index control agent. The alkoxysilane contains a epoxy group-containing trialkoxysilane as a first component, tetraalkoxysilane as a second component, and a sulfide bonded tetraalkoxysilane as a third component. The hard coating composition has practical abrasion resistance by the first component and the second component, and a blending amount of the third component is an amount not impairing the practical abrasion resistance.

Find Patent Forward Citations

Uchida, Naoki. (2020). Hard coating composition (U.S. Patent No. 10723915). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10723915

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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