US 12,297,330 B2
Silicone hydrogel contact lenses having non-uniform morphology
Azaam Alli, Jacksonville, FL (US); Donald E. Riederer, Jacksonville, FL (US); Alexander Guzman, Jacksonville, FL (US); and Bernardo Santa Maria, Jacksonville, FL (US)
Assigned to Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US)
Filed by Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US)
Filed on Sep. 1, 2023, as Appl. No. 18/459,499.
Application 18/065,206 is a division of application No. 16/875,164, filed on May 15, 2020, granted, now 11,578,176, issued on Feb. 14, 2023.
Application 18/459,499 is a continuation of application No. 18/065,206, filed on Dec. 13, 2022, granted, now 11,827,755.
Claims priority of provisional application 62/865,586, filed on Jun. 24, 2019.
Prior Publication US 2023/0416470 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 3/075 (2006.01); C08F 230/08 (2006.01); C08L 83/04 (2006.01); G02B 1/04 (2006.01)
CPC C08J 3/075 (2013.01) [C08F 230/085 (2020.02); C08L 83/04 (2013.01); G02B 1/043 (2013.01); C08J 2383/04 (2013.01); C08J 2439/00 (2013.01); C08J 2443/04 (2013.01); C08L 2203/02 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A silicone hydrogel contact lens that is a reaction product of a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, wherein at least one of the silicone-containing component and the hydrophilic component contains a methacrylate, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to methacrylate, without a surface treatment, is greater in the lens's surface than in its bulk.