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.:
Date of Patent:
Sep. 12, 2023
Filed:
Oct. 08, 2020
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Robert Valeri, Dallas, TX (US);
John Biteau, Dallas, TX (US);
Assignee:
Essilor International, Charenton-le-pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); B33Y 10/00 (2015.01); G02B 1/04 (2006.01); B29C 64/112 (2017.01); B29C 64/135 (2017.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B29C 37/00 (2006.01); G02C 7/02 (2006.01); B29K 63/00 (2006.01); B29K 69/00 (2006.01); B29K 105/00 (2006.01); B29L 11/00 (2006.01);
U.S. Cl.
CPC ...
B29D 11/00442 (2013.01); B29C 37/0025 (2013.01); B29C 64/112 (2017.08); B29C 64/135 (2017.08); B29D 11/00028 (2013.01); B29D 11/0048 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); G02B 1/041 (2013.01); G02B 1/043 (2013.01); B29K 2063/00 (2013.01); B29K 2069/00 (2013.01); B29K 2105/0014 (2013.01); B29L 2011/0016 (2013.01); G02C 7/022 (2013.01);
Abstract
The present invention proposes a polymer composition of manufacturing ophthalmic lens by polymerization of polymerizable composition wherein the shrinkage phenomenon is minimized. The polymerizable composition comprised two different categories of monomers which are able during crosslinking to control and limit said chemical shrinkage. The present invention comprises also ophthalmic lens obtained from said polymer composition using a manufacturing process of casting or additive manufacturing.