Patent ID: 7858672
Filing Date: 2010-12-28
Classification: G02B

Abstract:
1. A methacrylic polymeric ophthalmic or otorhinolaryngological device material made by polymerizing a mixture of monomers wherein the mixture comprises a) 65 to 90% (w/w) of a monofunctional methacrylate monomer of formula [1]: wherein B=O(CH R n=0-12; A=C m=0-22; b) a difunctional methacrylate cross-linking monomer of formula [2]: wherein R W, W′ independently=O(CH J=(CH d=0-12; a=1-12; and b=1-24; c) 1 to 15% (w/w) of an ethoxylate selected from the group consisting of alkyl ethoxylate monomers of formula [3a] and alkylphenol ethoxylate monomers of formula [3b]: wherein: n=12, 13, or 14; e=1-100; R R wherein: T=C f=1-100; R R and d) 5 to 20% (w/w) of a methacrylate monomer of formula [4] wherein: