IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0962575
(2010-12-07)
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등록번호 |
US-8637589
(2014-01-28)
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발명자
/ 주소 |
- Fujisawa, Kazuhiko
- Yokota, Mitsuru
- Nakamura, Masataka
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출원인 / 주소 |
- Johnson & Johnson Vision Care, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
78 |
초록
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In one aspect, the invention relates to silicone prepolymer compositions comprising a silicone prepolymer and a solvent. A soluble silicone prepolymer can be provided having increased average silicon content, thereby attaining a desired oxygen permeability. A solvent can be provided with a desired b
In one aspect, the invention relates to silicone prepolymer compositions comprising a silicone prepolymer and a solvent. A soluble silicone prepolymer can be provided having increased average silicon content, thereby attaining a desired oxygen permeability. A solvent can be provided with a desired balance between hydrophilicity and hydrophobicity by selection and modification of the solvent molecular structure, resulting in molded polymer films and articles that exhibit minimal or nonexistent eye irritation and exhibit highly transparent products. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
대표청구항
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1. A composition comprising: a) from about 20% to about 95% content by weight of the composition of a silicone prepolymer having an average silicon content of from about 10% to about 20% by weight of the prepolymer, wherein the silicone prepolymer comprises: (1) at least one silicone-containing resi
1. A composition comprising: a) from about 20% to about 95% content by weight of the composition of a silicone prepolymer having an average silicon content of from about 10% to about 20% by weight of the prepolymer, wherein the silicone prepolymer comprises: (1) at least one silicone-containing residue having a structure represented by the formula (a): wherein Ra represents hydrogen or methyl, andwherein A represents a siloxanyl group; and(2) at least one polymerizable residue having a structure represented by the formula (p): wherein Rp represents hydrogen or methyl, andwherein P represents an organic group comprising at least one polymerizable moiety;wherein at least one of the at least one silicone-containing residue is a polar silicone-containing residue further comprising at least one polar moiety; andwherein the prepolymer has a polar silicone-containing residue content of from about 30% to about 90% by weight of the prepolymer, andb) from about 5% to about 80% content by weight of the composition of a solvent having a structure represented by formula (1s): R11—O-G-R13, (1s)wherein R11 and R13 independently represent hydrogen or an organic radical comprising from 1 to 20 carbon atoms; andwherein G comprises: (1) at least one group having a structure represented by formula (1s1): wherein the total number of group(s) in G having a structure represented by formula (1s1) is defined as m, andwherein m is an integer of from 1 to 50; and(2) at least one group having a structure represented by formula (1s2): wherein the total number of group(s) in G having a structure represented by formula (1s2) is defined as n, andwherein n is an integer of from 1 to 50, andwherein R12 is a divalent organic radical comprising from 3 to 20 carbon atoms; andwherein m/(m+n) is from about 0.05 to about 0.95. 2. The composition of claim 1, further comprising an initiator. 3. The composition of claim 1, wherein R11 and R13 independently represent hydrogen, a C1-C20 alkyl residue, or a C1-C20 aryl residue. 4. The composition of claim 1, wherein R12 represents a C3-C20 alkylene residue or a C3-C20 arylene residue. 5. The composition of claim 1, wherein (the number of oxygen atom)/(the number of carbon atom) in the formula (1s) is not more than 0.37. 6. The composition of claim 1, wherein R12 has a structure represented by formula (1s2-1): wherein R14 represents a C1-C18 alkyl residue or a C1-C18 aryl residue. 7. The composition of claim 1, wherein the number average molecular weight of the solvent is not more than 450. 8. The composition of claim 1, wherein one of R11 and R13 represents hydrogen and the other of R11 and R13 represents a C1-C10 alkyl residue or a C1-C10 aryl residue. 9. The composition of claim 1, wherein m/(m+n) is from about 0.2 to about 0.8. 10. The composition of claim 1, wherein ethylene oxide residue(s) and —R12—O— group(s) in the solvent represented by the formula(s) are randomly copolymerized. 11. The composition of claim 1, wherein the silicone prepolymer further comprises at least one hydrophilic residue having a structure represented by the following formula (b): wherein Rb represents hydrogen or methyl; andwherein B represents a hydrophilic group. 12. A method for producing a polymer comprising the step of polymerizing prepolymer from the composition of claim 1, thereby providing the polymer. 13. The polymer produced by the process of claim 12. 14. An ophthalmic lens comprising the polymer of claim 13. 15. A contact lens comprising the polymer of claim 13. 16. A composition comprising: a) from about 20% to about 95% content by weight of the composition of a silicone prepolymer having an average silicon content of from about 10% to about 30% by weight of the prepolymer, wherein the silicone prepolymer comprises: (1) at least one silicone-containing residue having a structure represented by the formula (a): wherein Ra represents hydrogen or methyl, andwherein A represents a siloxanyl group; and(2) at least one polymerizable residue having a structure represented by the formula (p): wherein Rp represents hydrogen or methyl, andwherein P represents an organic group comprising at least one polymerizable moiety;wherein at least one of the at least one silicone-containing residue is a polar silicone-containing residue further comprising at least one polar moiety; andwherein the prepolymer has a polar silicone-containing residue content of from about 30% to about 90% by weight of the prepolymer, andb) from about 5% to about 80% content by weight of the composition of a solvent having a structure represented by formula (2s): wherein R21 to R24 independently represent hydrogen or an organic radical comprising from 1 to 20 carbon atoms;wherein R25 and R26 independently represent hydrogen or an organic radical comprising from 1 to 20 carbon atoms;wherein n represent integers of from 1 to 50;wherein the total number of carbon atom in R25 and R26 is defined as r; andwherein (n+1)/(2n+r) is not more than about 0.45. 17. The composition of claim 16, further comprising an initiator. 18. The composition of claim 16, wherein R11 and R13 independently represent hydrogen, a C1-C20 alkyl residue, or a C1-C20 aryl residue. 19. The composition of claim 16, wherein R12 represents a C3-C20 alkylene residue or a C3-C20 arylene residue. 20. The composition of claim 16, wherein (the number of oxygen atom)/(the number of carbon atom) in the formula (1s) is not more than 0.37. 21. The composition of claim 16, wherein R12 has a structure represented by formula (1s2-1): wherein R14 represents a C1-C18 alkyl residue or a C1-C18 aryl residue. 22. The composition of claim 16, wherein the number average molecular weight of the solvent is not more than 450. 23. The composition of claim 16, wherein one of R11 and R13 represents hydrogen and the other of R11 and R13 represents a C1-C10 alkyl residue or a C1-C10 aryl residue. 24. The composition of claim 16, wherein m/(m+n) is from about 0.2 to about 0.8. 25. The composition of claim 16, wherein ethylene oxide residue(s) and —R12—O— group(s) in the solvent represented by the formula (s) are randomly copolymerized. 26. The composition of claim 16, wherein the silicone prepolymer further comprises at least one hydrophilic residue having a structure represented by the following formula (b): wherein Rb represents hydrogen or methyl; andwherein B represents a hydrophilic group. 27. A method for producing a polymer comprising the step of polymerizing prepolymer from the composition of claim 16, thereby providing the polymer. 28. The polymer produced by the process of claim 27. 29. An ophthalmic lens comprising the polymer of claim 28. 30. A contact lens comprising the polymer of claim 28.
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