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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 10364378 B1

PDFFull Text
Date of Patent:
Jul. 30, 2019

Filed:

Jan. 08, 2015

Polarizing structure comprising a glyoxal adhesive system and polarized lens comprising it

Applicant:

Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;

Inventors:

Peiqi Jiang, Dallas, TX (US);

Marvin Pounders, Dallas, TX (US);

Assignee:

ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;

Attorney:

Norton Rose Fulbright US LLP

Primary Examiner:

Nicholas E Hill

Int. Cl.
CPC ...
C09J 129/04 (2006.01); G02B 5/30 (2006.01); G02B 1/14 (2015.01); B32B 7/12 (2006.01); B32B 27/06 (2006.01); B32B 37/10 (2006.01); B32B 37/12 (2006.01); C09D 101/28 (2006.01); C09J 11/06 (2006.01); G02C 7/12 (2006.01); C09J 7/35 (2018.01); C09J 7/25 (2018.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
C09J 129/04 (2013.01); B32B 7/12 (2013.01); B32B 27/06 (2013.01); B32B 37/10 (2013.01); B32B 37/12 (2013.01); C09D 101/284 (2013.01); C09J 7/25 (2018.01); C09J 7/35 (2018.01); C09J 11/06 (2013.01); G02B 1/14 (2015.01); G02B 5/3033 (2013.01); G02C 7/12 (2013.01); B32B 2307/42 (2013.01); B32B 2551/00 (2013.01); B32B 2551/08 (2013.01); C09J 2433/001 (2013.01); C09J 2469/001 (2013.01); G02B 1/04 (2013.01);
Abstract

A polarizing structure comprising a polarizing film, a protective film provided on at least one face of the polarizing film with an adhesive layer which is a glyoxal-based adhesive or a water based polymer adhesive such as a PVOH-based adhesive layer, and wherein at least one face of said protective film oriented towards said polarizing film further comprises an adhesion primer structure. The adhesive avoids delamination of the polarizing structure, which withstands edging processing conditions, and which also show excellent dry peel force. Other aspects of the invention relates to a method for manufacturing such a polarizing structure, and a polarized ophthalmic lens comprising such polarizing structure.

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