Ionic silicone hydrogels
US-2017044293-A1 · Feb 16, 2017 · US
US9964666B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9964666-B2 |
| Application number | US-201615278691-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 28, 2016 |
| Priority date | Dec 23, 2011 |
| Publication date | May 8, 2018 |
| Grant date | May 8, 2018 |
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The present invention relates to a process comprising the steps of reacting a reactive mixture comprising at least one silicone-containing component, at least one hydrophilic component, and at least one diluent to form an ophthalmic device having an advancing contact angle of less than about 80°; and contacting the ophthalmic device with an aqueous extraction solution at an elevated extraction temperature, wherein said at least one diluent has a boiling point at least about 10° higher than said extraction temperature.
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What is claimed is: 1. A silicone hydrogel formed from a reaction mixture comprising, (a) from about 37 to about 70 wt % of at least one slow reacting monomer selected from the group consisting of N-vinylamide monomer of Formula I, vinyl pyrrolidone of Formula II, and vinyl pyrrolidone of Formula IV: wherein in formulae I, II, and IV, R is H or methyl; R 1 , R 2 , R 3 , R 10 , and R 11 are independently selected from the group consisting of H, CH 3 , CH 2 CH 3 , CH 2 CH 2 CH 3 , C(CH 3 ) 2 ; R 4 is selected from the group consisting of CH 2 , CHCH 3 and C(CH 3 ); R 5 is selected from H, methyl, ethyl; and R 9 is selected from CH═CH 2 , CCH 3 ═CH 2 , and CH═CHCH 3 ; (b) at least one mono (meth)acryloxyalkyl polydialkylsiloxane monomer of Formula VII: wherein R 12 is H or methyl; X is O or NR 16 ; Each R 14 is independently a C 1 to C 4 alkyl which may be fluorine substituted, or phenyl; R 15 is a C 1 to C 4 alkyl; R 13 is a divalent alkyl group, which may further be functionalized with a group selected from the group consisting of ether groups, hydroxyl groups, carbamate groups and combinations thereof; a is 3 to 50; R 16 is selected from H, C 1-4 , which may be further substituted with one or more hydroxyl groups; (c) at least one hydroxyalkyl (meth)acrylate or (meth)acrylamide monomer of Formula IX wherein in Formula IX, R 1 is H or methyl, X is O or NR 16 , R 16 is a H, or C 1 to C 4 alkyl, which may be further substituted with at least one OH; R 17 is selected from C 2 -C 4 mono or dihydroxy substituted alkyl, and poly(ethylene glycol) having 1-10 repeating units; wherein said at least one hydroxyalkyl (meth)acrylate or (meth)acrylamide monomer and said slow reacting monomer are present in mole percents which form a molar ratio between about 0.15 and 0.4; and (d) at least one crosslinking monomer. 2. The silicone hydrogel of claim 1 wherein each R 3 is independently selected from ethyl and methyl groups. 3. The silicone hydrogel of claim 1 wherein all R 3 are methyl. 4. The silicone hydrogel of claim 1 wherein R 13 is selected from the group consisting of C 1 -C 6 alkylene group which may be substituted with ether, hydroxyl and combinations thereof. 5. The silicone hydrogel of claim 1 wherein R 13 is selected from the group consisting of C 1 or C 3 -C 6 alkylene groups which may be substituted with ether, hydroxyl and combinations thereof. 6. The silicone hydrogel of claim 1 wherein R 16 in Formula VII is H or methyl. 7. The silicone hydrogel of claim 1 wherein R 12 and each R 14 are methyl. 8. The silicone hydrogel of claim 1 wherein at least one R 14 is 3,3,3-trifluoropropyl. 9. The silicone hydrogel of claim 1 wherein R 4 is CH 2 . 10. The silicone hydrogel of claim 1 wherein the slow-reacting hydrophilic monomer is selected from the vinyl pyrrolidone of Formula II or IV or the N-vinyl amide monomer of Formula I, having a total number of carbon atoms in R 1 and R 2 of 4 or less. 11. The silicone hydrogel of claim 1 wherein the slow-reacting hydrophilic monomer is selected from the group consisting of N-vinylpyrrolidone, N-vinylacetamide, 1-methyl-3-methylene-2-pyrrolidone, 1-methyl-5-methylene-2-pyrrolidone, 5-methyl-3-methylene-2-pyrrolidone, and mixtures thereof. 12. The silicone hydrogel of claim 1 wherein the slow-reacting hydrophilic monomer is selected from the group consisting of NVP, VMA and 1-methyl-5-methylene-2-pyrrolidone. 13. The silicone hydrogel of claim 1 wherein the slow-reacting hydrophilic monomer comprises NVP. 14. The silicone hydrogel of claim 1 wherein at least one R 14 is 3,3,3-trifluoropropyl. 15. The silicone hydrogel of claim 1 wherein R 13 is selected from C 1 -C 6 alkylene groups which may be substituted with ether, hydroxyl and combinations thereof. 16. The silicone hydrogel of claim 1 wherein R 13 is selected from C 1 or C 3-6 alkylene groups which may be substituted with ether, hydroxyl and combinations thereof. 17. The silicone hydrogel of claim 1 wherein a is 7 to 30. 18. The silicone hydrogel of claim 1 wherein R 16 in Formula IX is H or methyl. 19. The silicone hydrogel of claim 1 wherein said mono (meth)acryloxyalkyl polydialkylsiloxane monomer is selected from the group consisting of monomethacryloxypropyl terminated mono-n-butyl terminated polydimethylsiloxane, monomethacryloxypropyl terminated mono-n-methyl terminated polydimethylsiloxane, monomethacryloxypropyl terminated mono-n-butyl terminated polydiethylsiloxane, monomethacryloxypropyl terminated mono-n-methyl terminated polydiethylsiloxane, N-(2,3-dihydroxypropane)-N′-(propyl tetra(dimethylsiloxy) dimethylbutylsilane)acrylamide; α-(2-hydroxy-1-methacryloxypropyloxypropyl)-ω-butyl-octamethylpentasiloxane and mixtures thereof. 20. The silicone hydrogel of claim 1 wherein said mono (meth)acryloxyalkyl polydialkylsiloxane monomer is selected from the group consisting of monomethacryloxypropyl terminated mono-n-butyl terminated polydimethylsiloxane, monomethacryloxypropyl terminated mono-n-methyl terminated polydimethylsiloxane, N-(2,3-dihydroxypropane)-N′-(propyl tetra(dimethylsiloxy) dimethylbutylsilane)acrylamide. 21. The silicone hydrogel of claim 1 wherein in Formula IX R 1 is H or methyl, X is oxygen and R 17 is selected from C 2 -C 4 mono or dihydroxy substituted alkyl, and poly(ethylene glycol) having 1-10 repeating units. 22. The silicone hydrogel of claim 1 wherein in Formula IX R 1 is methyl, X is oxygen and R 17 is selected from C 2 -C 4 mono or dihydroxy substituted alkyl, and poly(ethylene glycol) having 2-20 repeating units. 23. The silicone hydrogel of claim 1 wherein R 17 is 2-hydroxyethyl, 2,3-dihydroxypropyl, or 2-hydroxypropyl. 24. The silicone hydrogel of claim 1 wherein Formula IX is selected from the group consisting of 2-hydroxyethyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 1-hydroxypropyl-2-(meth)acrylate, 2-hydroxy-2-methyl-propyl (meth)acrylate, 3-hydroxy-2,2-dimethyl-propyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, glycerol (meth)acrylate, 2-hydroxyethyl (meth)acrylamide, polyethyleneglycol monomethacrylate, bis-(2-hydroxyethyl) (meth)acrylamide, 2,3-dihydroxypropyl (meth)acrylamide, and mixtures thereof. 25. The silicone hydrogel of claim 1 wherein Formula IX is selected from the group consisting of 2-hydroxyethyl methacrylate, glycerol methacrylate, 2-hydroxypropyl methacrylate, hydroxybutyl methacrylate, 3-hydroxy-2,2-dimethyl-propyl methacrylate, and mixtures thereof. 26. The silicone hydrogel of claim 1 wherein Formula IX comprises 2-hydroxyethyl methacrylate, 3-hydroxy-2,2-dimethyl-propyl methacrylate, glycerol methacrylate and mixtures comprising them. 27. The silicone hydrogel of claim 1 further comprising a Dk of at least about 60. 28. The silicone hydrogel of claim 1 further comprising a Dk of at least about 80. 29. The silicone hydrogel of claim 1 further comprising a water content of at least about 55
containing vinyl polymer sequences · CPC title
for biomedical use · CPC title
Polysiloxanes · CPC title
on to polysiloxanes · CPC title
Contact lenses · CPC title
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