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.

Date of Patent:
May. 03, 2022

Filed:

Nov. 12, 2019
Applicant:

Corning Incorporated, Corning, NY (US);

Inventor:

Bin Yang, Painted Post, NY (US);

Assignee:

Corning Incorporated, Corning, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 135/02 (2006.01); C03C 25/106 (2018.01); C03C 25/285 (2018.01); C08F 222/10 (2006.01); G02B 6/02 (2006.01);
U.S. Cl.
CPC ...
C09D 135/02 (2013.01); C03C 25/106 (2013.01); C03C 25/285 (2013.01); C08F 222/1006 (2013.01); G02B 6/02395 (2013.01); C08F 222/1065 (2020.02);
Abstract

The present disclosure provides coating compositions that can be cured at fast rates as well as coatings and cured products formed from the coating compositions. The coating compositions include an acylgermane photoinitiator that leads to fast cure speeds. The coating compositions include primary coating compositions and secondary coating compositions. The coating compositions can be cured to form primary and secondary coatings of optical fibers. The primary coatings feature low Young's modulus and high tear strength. The primary coatings provide good microbending performance and are resistant to defect formation during the fiber draw process and subsequent handling operations. The secondary coatings feature high Young's modulus and good puncture resistance.


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