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:
Jan. 22, 2019
Filed:
May. 29, 2015
Menicon Co., Ltd., Nagoya-Shi, Aichi, JP;
Eri Ito, Kasugai, JP;
Katsuhiro Yamamoto, Nagoya, JP;
MENICON CO., LTD., Nagoya, JP;
Abstract
A contact lens is provided as a hydrate of a copolymer of at least three components including (I) a both terminal-polymerizable silicone oligomer component that forms a hydrophobic region (A) in the copolymer, (II) a hydrophilic component that forms a hydrophilic region (C) in the copolymer, and (III) a hydrophobic monomer component having a molecular weight of at most 700 that forms the hydrophilic region (C) together with the component (II) and also contributes to form an intermediate region (B) which does not solvate with a hydrophilic solvent between the hydrophobic region (A) and hydrophilic region (C), wherein the intermediate region (B) shows a volume rate of 5 to 40% with respect to the region (A) in the copolymer, and the contact lens is transparent and free from bubbles therein.