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:
Jun. 02, 2020
Filed:
Aug. 10, 2018
Bausch & Lomb Incorporated, Rochester, NY (US);
Ivan M. Nuñez, Penfield, NY (US);
Lynn Coullard, Williamson, NY (US);
Daniel J. Hook, Fairport, NY (US);
Robert B. Steffen, Naples, FL (US);
Daniel M. Ammon, Webster, NY (US);
Jennifer M. Hunt, Lake Grove, NY (US);
Analuz Mark, Spencerport, NY (US);
Bausch & Lomb Incorporated, Rochester, NY (US);
Abstract
An ophthalmic device is disclosed that is a polymerization product of a monomeric mixture comprising: (a) a major amount of one or more non-silicone-containing hydrophilic monomers; (b) a crosslinking agent mixture comprising (i) one or more first crosslinking agents containing at least two ethylenically unsaturated reactive end groups, wherein the at least two ethylenically unsaturated reactive end groups are (meth)acrylate-containing reactive end groups and (ii) one or more second crosslinking agents containing at least two ethylenically unsaturated reactive end groups wherein at least one of the ethylenically unsaturated reactive end groups is a non-(meth)acrylate reactive end group, and (c) one or more hydrophilic polymers or copolymers comprising one or more hydrophilic units and a thio carbonyl thio fragment of a reversible addition fragmentation chain transfer ('RAFT') agent wherein the ophthalmic device has an equilibrium water content of at least about 45 weight percent.