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:
Nov. 17, 2015
Filed:
Oct. 05, 2011
Jinyu Huang, Suwanee, GA (US);
Frank Chang, Suwanee, GA (US);
Robert Scott, Alpharetta, GA (US);
Arturo Norberto Medina, Suwanee, GA (US);
Manivakkam J. Shankernarayanan, Alpharetta, GA (US);
Selma Kuyu, Duluth, GA (US);
Dawn Alison Smith, Rotorua, NZ;
Daqing Wu, Suwanee, GA (US);
Jinyu Huang, Suwanee, GA (US);
Frank Chang, Suwanee, GA (US);
Robert Scott, Alpharetta, GA (US);
Arturo Norberto Medina, Suwanee, GA (US);
Manivakkam J. Shankernarayanan, Alpharetta, GA (US);
Selma Kuyu, Duluth, GA (US);
Dawn Alison Smith, Rotorua, NZ;
Daqing Wu, Suwanee, GA (US);
Novartis AG, Basel, CH;
Abstract
The invention provide a class of water-processable polymerizable prepolymers which comprises (1) siloxane-containing monomeric units derived at least one siloxane containing monomer having one hydrophilic group or chain and/or polysiloxane-containing crosslinking units derived from at least one hydrophilized polysiloxane or chain-extended polysiloxane crosslinker; (2) hydrophilic monomeric units derived from one or more hydrophilic vinylic monomers; and (3) from about 0.05% to about 5% by weight of polymerizable units each having a pendant or terminal, ethylenically-unsaturated group and free of any polysiloxane segment. The prepolymer comprises from about 20% to about 50% by weight of silicone relative to the total weight of the prepolymer and has a high water solubility or dispersibility of at least about 5% by weight in water and suitable for making silicone hydrogel contact lenses.