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:
Oct. 06, 2020
Filed:
Sep. 29, 2017
Benq Materials Corporation, Taoyuan, TW;
Fan-Dan Jan, Taoyuan, TW;
Pei-Yi Liu, Taoyuan, TW;
BenQ Materials Corporation, Taoyuan, TW;
Abstract
The invention provides a material for contact lenses, including a first siloxane macromer shown as formula (I): in formula (I), R, Rand Rare C-Calkyl groups, Ris C-Calkyl group, Ris C-Calkylene group, Ris —ORO— or —NH—, Rand Rare C-Calkylene groups and m is an integer of about 1-2, n is an integer of about 4-80; a second siloxane macromer shown as formula (II): in formula (II), R, Rand Rare C-Calkyl groups, R, Rand Rare C-Calkylene group, Ris a residue obtained by removing NCO group from an aliphatic or aromatic diisocyanate, and o is an integer of about 4-80, p is an integer of about 0-1; q is an integer of about 1-20; at least one hydrophilic monomer and an initiator.