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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 9981453 B1

PDFFull Text
Date of Patent:
May. 29, 2018

Filed:

Sep. 02, 2016

Photochromic polyurethane laminate

Applicant:

Vision Ease, Lp, Ramsey, MN (US);

Inventors:

Xuzhi Qin, Hacienda Heights, CA (US);

Hideyo Sugimura, North Oaks, MN (US);

Michael Boulineau, Forest Lake, MN (US);

Assignee:

Vision Ease, LP, Ramsey, MN (US);

Attorney:

Inskeep IP Group, Inc.

Primary Examiner:

Sonya Mazumdar

Int. Cl.
CPC ...
B44C 1/17 (2006.01); B32B 27/40 (2006.01); B32B 27/08 (2006.01); B32B 23/00 (2006.01); B32B 27/36 (2006.01); B32B 27/30 (2006.01); B32B 27/20 (2006.01); B32B 27/32 (2006.01); B32B 27/18 (2006.01); C08G 18/10 (2006.01); C08G 18/42 (2006.01); C08G 18/75 (2006.01); C08K 5/00 (2006.01); C08L 75/04 (2006.01); G02B 1/04 (2006.01); B29D 11/00 (2006.01); B32B 37/00 (2006.01); B32B 37/24 (2006.01); B32B 38/00 (2006.01); G02B 5/23 (2006.01); G02C 7/06 (2006.01); G02C 7/10 (2006.01); G02B 5/22 (2006.01); C08J 5/18 (2006.01); B29K 75/00 (2006.01); B29K 101/00 (2006.01); B29K 105/00 (2006.01); B32B 38/16 (2006.01); B29K 69/00 (2006.01); B29K 675/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29D 11/00009 (2013.01); B29D 11/00442 (2013.01); B32B 23/00 (2013.01); B32B 27/18 (2013.01); B32B 27/20 (2013.01); B32B 27/308 (2013.01); B32B 27/325 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 27/40 (2013.01); B32B 37/025 (2013.01); B32B 37/24 (2013.01); B32B 38/164 (2013.01); C08G 18/10 (2013.01); C08G 18/4277 (2013.01); C08G 18/758 (2013.01); C08J 5/18 (2013.01); C08K 5/0041 (2013.01); C08L 75/04 (2013.01); G02B 1/041 (2013.01); G02B 5/223 (2013.01); G02B 5/23 (2013.01); G02C 7/06 (2013.01); G02C 7/061 (2013.01); G02C 7/102 (2013.01); B29K 2069/00 (2013.01); B29K 2075/00 (2013.01); B29K 2101/00 (2013.01); B29K 2105/0067 (2013.01); B29K 2105/256 (2013.01); B29K 2675/00 (2013.01); B29K 2995/002 (2013.01); B32B 2037/243 (2013.01); B32B 2038/168 (2013.01); B32B 2307/402 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/412 (2013.01); B32B 2317/18 (2013.01); B32B 2323/00 (2013.01); B32B 2333/04 (2013.01); B32B 2367/00 (2013.01); B32B 2369/00 (2013.01); B32B 2375/00 (2013.01); B32B 2551/00 (2013.01); C08J 2375/06 (2013.01); Y10T 428/31507 (2015.04); Y10T 428/31547 (2015.04); Y10T 428/31551 (2015.04);
Abstract

A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.

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