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:
May. 13, 2025
Filed:
Mar. 22, 2022
Alcon Inc., Fribourg, CH;
Alcon Inc., Fribourg, CH;
Abstract
The invention provides a class of high RI polysiloxane vinylic crosslinkers. Each of the polysiloxane vinylic crosslinkers of the invention comprise (1) a polysiloxane segment comprising dimethylsiloxane units and aryl-containing siloxane units each having one methyl substituent and one organic substituent having up to 45 carbon atoms and at least one aryl moiety which is linked to Si atom through a linker having at least 2 (preferably 3) carbon atoms; (2) ethylenically-unsaturated groups. The invention also provides an insert or silicone hydrogel contact lens which comprises a crosslinked polymeric material comprising repeating units of at least one of such a class of high RI polysiloxane vinylic crosslinkers.