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. 16, 2018
Filed:
Oct. 19, 2016
Benq Materials Corporation, Taoyuan, TW;
Fan-Dan Jan, Taoyuan, TW;
BenQ Materials Corporation, Taoyuan, TW;
Abstract
Methods for manufacturing contact lenses are provided. In an embodiment, the method includes mixing a siloxane macromer represented by the following formula (I), a hydrophilic monomer, a crosslinking agent or a siloxane macromer represented by the following formula (II), and an initiator to form a mixture. Then the mixture is injected into a mold of contact lens and heated to form contact lenses. The formula (I) and the formula (II) are shown respectively as the following: wherein R1, R2 and R3 are independently C1-C4 alkyl groups, R4 is C1-C6 alkyl group, R5 is a residue obtained by removing NCO group from an aliphatic or aromatic diisocyanate, R6 and R7 are independently alkylene groups, and n is an integer of 4-80, m is an integer of 3-40. wherein p is an integer of 4-80 and q is an integer of 3-40.