Patent ID: 8440735
Filing Date: 2013-05-14
Classification: B29C,G02B

Abstract:
1. A fluid composition for making contact lenses, comprising: a lens-forming material and a PEG-ylated phosphatidyl ethanolamines, wherein the lens-forming material is crosslinkable and/or polymerizable by actinic radiation in a mold to form a contact lens having a polymer matrix, wherein the PEG-ylated phosphatidyl ethanolamines migrates to the interface between the mold and the fluid composition therein to form an intact interfacial film within a desired time period and with a thickness sufficient to reduce averaged mold separation force, wherein the PEG-ylated phosphatidyl ethanolamines is present in an amount sufficient to reduce an averaged mold separation force by at least about 40% in comparison with that without the phospholipids.