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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 10669459 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Mar. 20, 2013

Polyurethane based adhesive for polarizing structure and polarized lens

Applicant:

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

Inventors:

Ronald A. Berzon, Dallas, TX (US);

Aref Jallouli, Dallas, TX (US);

Assignee:

Essilor International, Charenton-le-Pont, FR;

Attorney:

Young & Thompson

Primary Examiner:

Anish P Desai

Int. Cl.
CPC ...
C09J 175/06 (2006.01); C08L 75/04 (2006.01); C08G 18/42 (2006.01); B29D 11/00 (2006.01); C09J 175/04 (2006.01); C08L 75/06 (2006.01); G02B 1/04 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 37/10 (2006.01); B32B 37/12 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
C09J 175/06 (2013.01); B29D 11/0073 (2013.01); B29D 11/00644 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 37/10 (2013.01); B32B 37/1207 (2013.01); B32B 37/1284 (2013.01); C08G 18/4269 (2013.01); C08L 75/04 (2013.01); C08L 75/06 (2013.01); C09J 175/04 (2013.01); G02B 1/04 (2013.01); B32B 2037/1215 (2013.01); B32B 2551/00 (2013.01); C09J 2475/003 (2013.01); G02B 5/3025 (2013.01);
Abstract

A polyurethane based adhesive containing one polyol compound derived from caprolactone monomer having a number average molecular weight between 200 and 1000 combined with a polyisocyanate compound. The functionality of the polycaprolactone polyol is between 1 and 4. Other aspects include a polarizing layered structure, a polarized lens and a method for manufacturing same all of which include the polyurethane based adhesive. The adhesive avoids delamination and is useful in optical applications where it will be in contact with water, for example during surfacing or edging process.

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