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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 12271026 B1

PDFFull Text
Date of Patent:
Apr. 08, 2025

Filed:

Dec. 08, 2020

Resin composition, optical fiber, and method for producing optical fiber

Applicant:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventor:

Yuya Homma, Osaka, JP;

Assignee:

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;

Attorney:

Faegre Drinker Biddle & Reath LLP

Primary Examiner:

Daniel Petkovsek

Int. Cl.
CPC ...
G02B 6/02 (2006.01); C03C 25/1065 (2018.01); C03C 25/285 (2018.01); C03C 25/326 (2018.01); C03C 25/6226 (2018.01); C08F 290/06 (2006.01); C09D 151/08 (2006.01);
U.S. Cl.
CPC ...
G02B 6/02395 (2013.01); C03C 25/1065 (2013.01); C03C 25/285 (2013.01); C03C 25/326 (2013.01); C03C 25/6226 (2013.01); C08F 290/067 (2013.01); C09D 151/08 (2013.01);
Abstract

A resin composition for secondary coating of an optical fiber is a resin composition comprising: a photopolymerizable compound comprising a urethane (meth)acrylate having a number average molecular weight of 10000 or more and 40000 or less; and a photopolymerization initiator, the content of the urethane (meth)acrylate is 0.05 parts by mass or more and 15 parts by mass or less based on the total amount of the resin composition of 100 parts by mass, and the urethane (meth)acrylate is a reaction product of a polyol having a number average molecular weight of 1800 or more and 4500 or less, a diisocyanate, and a hydroxyl group-containing (meth)acrylate.

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Homma, Yuya. (2025). Resin composition, optical fiber, and method for producing optical fiber (U.S. Patent No. 12271026). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12271026

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

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