Fluorine containing polymeric compositions useful in contact lenses
First Claim
1. An oxygen permeable dimensionally stable, hydrophilic, contact lens material of high transparency, comprising a polymer formed by free radical polymerization from(A) 5 to 60% by weight of a fluorine containing itaconate mono or diester having the structure:
- ##STR3## wherein;
Z1 and Z2 can be the same or different and are each of a group selected from among the following with at least one of Z1 or Z2 containing fluorine;
hydrogen,straight chain alkyl groups or fluoro substituted alkyl groups containing from 1 to 18 carbon atoms,branched chain alkyl groups or fluoro substituted alkyl groups containing from 4 to 18 carbon atoms,cyclic alkyl groups or fluoro substituted cyclic alkyl groups containing from 5 to 18 carbon atoms,phenyl groups and fluoro substituted phenyl groups, orbenzyl and fluoro substituted benzyl groups, phenethyl and fluoro substituted phenethyl groups,ethers and polyethers of the general structure
space="preserve" listing-type="equation">(C.sub.x P.sub.2x O).sub.e -(C.sub.y P.sub.2y+1) wherein;
"P" is hydrogen or fluorine"x" is an integer from 1 to 4"y" is an integer from 1 to 10"e" is an integer from 1 to 10,(B) 95 to 40% by weight of at least one organic comonomer of an ethylenically unsaturated organosiloxane having the following formula;
##EQU6## wherein;
"X" is an ethylenically unsaturated group selected from the group consisting of vinyl, acryloxy, methacryloxy, vinyloxy, and carbovinyloxy,"Y" represents no group or is selected from the group consisting of a divalent alkane radical having from 1 to 10 carbon atoms, a divalent alkene radical having 2 to 10 carbon atoms and a phenylene radical,"a" is an integer from 1 to 10,"n" is an integer from 2 to 30,"b" is an integer from 0 to 3 and may be the same or different within each "i" moiety,"R" is selected from the class consisting of hydrogen, hydroxy, alkoxy, carboalkoxy, alkyl and substituted alkyl groups containing from 1 to 20 carbon atoms, cyclic alkyl or substituted cyclic alkyl groups containing from 5 to 10 carbon atoms, phenyl and substituted phenyl groups, benzyl and substituted benzyl groups and phenethyl and substituted phenethyl groups "R" and "b" may be the same or different within each "i" moiety.
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Abstract
Improved contact lens compositions are achieved through incorporation of a fluorine containing mono or diester of itaconic acid in siloxane polymeric contact lens compositions. Copolymers include components which modify contact lens mechanical, optical and transport properties as well as surface characteristics to achieve at least some compositions having an oxygen permeability of at least DK35 with a refractive index of from 1.35 to 1.5 and a percent hydration below 2 percent of total weight. Contact lenses made of materials of this invention are highly permeable to oxygen and resistant to the deposition of tear components providing extended wear capability through improved biocompatibility.
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Citations
29 Claims
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1. An oxygen permeable dimensionally stable, hydrophilic, contact lens material of high transparency, comprising a polymer formed by free radical polymerization from
(A) 5 to 60% by weight of a fluorine containing itaconate mono or diester having the structure: - ##STR3## wherein;
Z1 and Z2 can be the same or different and are each of a group selected from among the following with at least one of Z1 or Z2 containing fluorine;hydrogen, straight chain alkyl groups or fluoro substituted alkyl groups containing from 1 to 18 carbon atoms, branched chain alkyl groups or fluoro substituted alkyl groups containing from 4 to 18 carbon atoms, cyclic alkyl groups or fluoro substituted cyclic alkyl groups containing from 5 to 18 carbon atoms, phenyl groups and fluoro substituted phenyl groups, or benzyl and fluoro substituted benzyl groups, phenethyl and fluoro substituted phenethyl groups, ethers and polyethers of the general structure
space="preserve" listing-type="equation">(C.sub.x P.sub.2x O).sub.e -(C.sub.y P.sub.2y+1)wherein; "P" is hydrogen or fluorine "x" is an integer from 1 to 4 "y" is an integer from 1 to 10 "e" is an integer from 1 to 10, (B) 95 to 40% by weight of at least one organic comonomer of an ethylenically unsaturated organosiloxane having the following formula;
##EQU6## wherein;
"X" is an ethylenically unsaturated group selected from the group consisting of vinyl, acryloxy, methacryloxy, vinyloxy, and carbovinyloxy,"Y" represents no group or is selected from the group consisting of a divalent alkane radical having from 1 to 10 carbon atoms, a divalent alkene radical having 2 to 10 carbon atoms and a phenylene radical, "a" is an integer from 1 to 10, "n" is an integer from 2 to 30, "b" is an integer from 0 to 3 and may be the same or different within each "i" moiety, "R" is selected from the class consisting of hydrogen, hydroxy, alkoxy, carboalkoxy, alkyl and substituted alkyl groups containing from 1 to 20 carbon atoms, cyclic alkyl or substituted cyclic alkyl groups containing from 5 to 10 carbon atoms, phenyl and substituted phenyl groups, benzyl and substituted benzyl groups and phenethyl and substituted phenethyl groups "R" and "b" may be the same or different within each "i" moiety. - View Dependent Claims (2, 4, 6, 7, 8, 9, 10, 11, 14, 23)
- ##STR3## wherein;
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3. An oxygen permeable dimensionally stable hydrophilic, contact lens material of high transparency, comprising a polymer formed by free radical polymerization from
(A) 5 to 60% by weight of a fluorine containing itaconate mono or diester having the structure: - ##STR4## wherein;
Z1 and Z2 can be the same or different and are each of a group selected from among the following with at least one of Z1 or Z2 containing fluorine;hydrogen, straight chain alkyl groups or fluoro substituted alkyl groups containing from 1 to 18 carbon atoms, branched chain alkyl groups or fluoro substituted alkyl groups containing from 4 to 18 carbon atoms cyclic alkyl groups or fluoro substituted cyclic alkyl groups containing from 5 to 18 carbon atoms, phenyl groups and fluoro substituted phenyl groups, or benzyl and fluoro substituted benzyl groups, phenethyl and fluoro substituted phenethyl groups, ethers and polyethers of the general structure
space="preserve" listing-type="equation">(C.sub.x P.sub.2x O).sub.e -(C.sub.y P.sub.2y+1)wherein; "P" is hydrogen or fluorine "x" is an integer from 1 to 4 "y" is an integer from 1 to 10 "e" is an integer from 1 to 10, (B) from 95 to 40% by weight of at least one ethylenically unsaturated organosiloxane having the following formula;
##EQU7## wherein;
"X" is an ethylenically unsaturated group selected from the group consisting of vinyl, acryloxy, methacryloxy, vinyloxy, and carbovinyloxy,"Y" represents no group or is selected from the group consisting of a divalent alkane radical having from 1 to 10 carbon atoms, a divalent alkene radical having 2 to 10 carbon atoms and a phenylene radical, "a" is an integer from 1 to 10, "n" is an integer from 2 to 30, "b" is an integer from 0 to 3 and may be the same or different within each "i" moiety, "R" is selected from the class consisting of hydrogen, hydroxy, alkoxy, carboalkoxy, alkyl and substituted alkyl groups containing from 1 to 20 carbon atoms, cyclic alkyl or substituted cyclic alkyl groups containing from 5 to 10 carbon atoms, phenyl and substituted phenyl groups, benzyl and substituted benzyl groups and phenethyl and substituted phenethyl groups, "R" and "b" may be the same or different within each "i" moiety, (C) 0 to 55% by weight of the entire composition of a vinyl monomer hardness modifying agent, (D) 0 to 55% by weight of the entire composition of a hydrophilic organic monomer, (E) 0 to 20% by weight of the entire composition of a non-siloxane containing cross-linking monomer. - View Dependent Claims (5, 12, 13, 15, 17)
- ##STR4## wherein;
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16. A contact lens material formed from polymerization of a monomeric mixture of bis(1,1,1,3,3,3-hexafluoro-2-propyl) itaconate, bis(methacryloxypropyl)1,1,3,3-tetrakis (trimethyl siloxy) disiloxane, tris(trimethylsiloxy) ilylpropyl methacrylate, methylmethacrylate, n-vinyl pyrrolidone, methacrylic acid and tetraethylene glycol dimethacrylate.
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18. A contact lens formed from an oxygen permeable dimensionally stable, hydrophilic, contact lens material of high transparency, comprising a polymer formed by free radical polymerization from
(A) 5 to 60% by weight of a fluorine containing itaconate mono or diester having the structure: - ##STR5## wherein;
Z1 and Z2 can be the same or different and are each of a group selected from among the following with at least one of Z1 or Z2 containing fluorine;hydrogen, straight chain alkyl groups or fluoro substituted alkyl groups containing from 1 to 18 carbon atoms, branched chain alkyl groups or fluoro substituted alkyl groups containing from 4 to 18 carbon atoms, cyclic alkyl groups or fluoro substituted cyclic alkyl groups containing from 5 to 18 carbon atoms, phenyl groups and fluoro substituted phenyl groups, or benzyl and fluoro substituted benzyl groups, phenethyl and fluoro substituted phenethyl groups, ethers and polyethers of the general structure
space="preserve" listing-type="equation">(C.sub.x P.sub.2x O).sub.e -(C.sub.y P.sub.2y+1)wherein; "P" is hydrogen or fluorine "x" is an integer from 1 to 4 "y" is an integer from 1 to 10 "e" is an integer from 1 to 10, (B) 95 to 40% by weight of at least one organic comonomer of an ethylenically unsaturated organosiloxane having the following formula;
##EQU8## wherein;
"X" is an ethylenically unsaturated group selected from the group consisting of vinyl, acryloxy, methacryloxy and vinyloxy, and carbovinyloxy,"Y" represents no group or is selected from the group consisting of a divalent alkane radical having from 1 to 10 carbon atoms, a divalent alkene radical having 2 to 10 carbon atoms, and a phenylene radical, "a" is an integer from 1 to 10, "n" is an integer from 2 to 30, "b" is an integer from 0 to 3 and may be the same or different within each "i" moiety "R" is selected from the class consisting of hydrogen, hydroxy, alkoxy, carboalkoxy, alkyl and substituted alkyl groups containing from 1 to 20 carbon atoms, cyclic alkyl or substituted cyclic alkyl groups containing from 5 to 10 carbon atoms, phenyl and substituted phenyl groups, benzyl and substituted benzyl groups and phenethyl and substituted phenethyl groups "R" and "b" may be the same or different within each "i" moiety. - View Dependent Claims (19, 21)
- ##STR5## wherein;
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20. A contact lens formed from an oxygen permeable dimensionally stable hydrophilic, contact lens material of high transparency, comprising a polymer formed by free radical polymerization from
(A) 5 to 60% by weight of a fluorine containing itaconate mono or diester having the structure: - ##STR6## wherein;
Z1 and Z2 can be the same or different and are each of a group selected from among the following with at least one of Z1 or Z2 containing fluorine;hydrogen, straight chain alkyl groups or fluoro substituted alkyl groups containing from 1 to 18 carbon atoms, branched chain alkyl groups or fluoro substituted alkyl groups containing from 4 to 18 carbon atoms cyclic alkyl groups or fluoro substituted cyclic alkyl groups containing from 5 to 18 carbon atoms, phenyl groups and fluoro substituted phenyl groups, or benzyl and fluoro substituted benzyl groups, phenethyl and fluoro substituted phenethyl groups, ethers and polyethers of the general structure
space="preserve" listing-type="equation">(C.sub.x P.sub.2x O).sub.e -(C.sub.y P.sub.2y+1)wherein; "P" is hydrogen or fluorine "x" is an integer from 1 to 4 "y" is an integer from 1 to 10 "e" is an integer from 1 to 10, (B) from 30 to 95% by weight of at least one ethylenically unsaturated organosiloxane having the following formula;
##EQU9## wherein;
"X" is an ethylenically unsaturated group selected from the group consisting of vinyl, acryloxy, methacryloxy and vinyloxy, and carbovinyloxy,"Y" represents no group or is selected from the group consisting of a divalent alkane radical having from 1 to 10 carbon atoms, a divalent alkene radical having 2 to 10 carbon atoms, and a phenylene radical, "a" is an integer from 1 to 10, "n" is an integer from 2 to 30, "b" is an integer from 0 to 3 and may be the same or different within each "i" moiety, "R" is selected from the class consisting of hydrogen, hydroxy, alkoxy, carboalkoxy, chain alkyl and substituted alkyl groups containing from 1 to 20 carbon atoms, cyclic alkyl or substituted cyclic alkyl groups containing from 5 to 10 carbon atoms, phenyl and substituted phenyl groups, benzyl and substituted benzyl groups and phenethyl and substituted phenethyl groups "R" and "b" may be the same or different within each "i" moiety, (C) 0 to 55% by weight of the entire composition of a vinyl monomer modifying agent, (D) 0 to 55% by weight of the entire composition of a hydrophilic organic monomer, (E) 0 to 20% by weight of the entire composition of a non-siloxane containing cross-linking monomer.
- ##STR6## wherein;
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22. An oxygen permeable dimensionally stable, hydrophilic, contact lens material of high transparency, comprising a polymer formed by free radical polymerization from:
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(A) 5 to 60% by weight of a fluorine containing itaconate mono or diester having the structure;
##STR7## wherein;
Z1 and Z2 can be hydrogen or an organic group with at least one of Z1 or Z2 containing fluorine,(B) 95 to 40% by weight of at least one organic comonomer of an ethylenically unsaturated organosiloxane having the following formula;
##EQU10## wherein;
"X" is an ethylenically unsaturated group selected from the group consisting of vinyl, acryloxy, methacryloxy, vinyloxy, and carbovinyloxy,"Y" represents no group or is selected from the group consisting of a divalent alkane radical havng from 1 to 10 carbon atoms, a divalent alkene radical having 2 to 10 carbon atoms, or a phenylene radical, "a" is an integer from 1 to 10, "n" is an integer from 2 to 30, "b" is an integer from 0 to 3 and may be the same or different within each "i" moiety, "R" is selected from the class consisting of hydrogen, hydroxy, alkoxy, carboalkoxy, alkyl and substituted alkyl groups containing from 1 to 20 carbon atoms, cyclic alkyl or substituted cyclic alkyl groups containing from 5 to 10 carbon atoms, phenyl and substituted phenyl groups, benzyl and substituted benzyl groups and phenethyl and substituted phenethyl groups, "R" and "b" may be the same or different within each "i" moiety.
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24. An oxygen permeable contact lens material of high transparency comprised of a polymer formed by free radical polymerization from
(A) 5 to 60% by weight of a fluorine containing itaconate mono or diester having a structure: - ##STR8## wherein;
Z1 and Z2 can be hydrogen or an organic group with at least one of Z1 or Z2 containing fluorine,(B) 95 to 10% by weight of at least one organic comonomer of an ethylenically unsaturated organosiloxane having the following formula;
##EQU11## wherein;
"X" is an ethylenically unsaturated group selected from the group consisting of vinyl, acryloxy, methacryloxy, vinyloxy, and carbovinyloxy,"Y" represents no group or is selected from the group consisting of a divalent alkane radical having from 1 to 10 carbon atoms, a divalent alkene radical having 2 to 10 carbon atoms, or a phenylene radical, "a" is an integer from 1 to 10, "n" is an integer from 2 to 30, "b" is an integer from 0 to 3 and may be the same or different within each "i" moiety, "R" is selected from the class consisting of hydrogen, hydroxy, alkoxy, carboalkoxy, alkyl and substituted alkyl groups containing from 1 to 20 carbon atoms, cyclic alkyl or substituted cyclic alkyl groups containing from 5 to 10 carbon atoms, phenyl and substituted phenyl groups, benzyl and substituted benzyl groups and phenethyl and substituted phenethyl groups, "R" and "b" may be the same or different within each "i" moiety and (C) from 85 to 20% by weight of a refractive index modifying aromatic group containing monomer. - View Dependent Claims (25, 26)
- ##STR8## wherein;
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27. Bis(1,1,1.3,3,3-hexafluoro-2-propyl) itaconate.
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28. A contact lens material formed from polymerization of a monomeric mixture of bis(1,1,1,3,3,3-hexafluoro-2-propyl) itaconate, bis(methacryloxypropyl)1,1,3,3-tetrakis (trimethyl siloxy) disiloxane, tris(trimethylsiloxy) silylpropyl methacrylate, n-vinyl pyrrolidone, methacrylic acid and tetraethylene glycol dimethacrylate.
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29. A contact lens material formed from polymerization of a monomeric mixture of bis(1,1,1,3,3,3-hexafluoro-2-propyl) itaconate, bis(methacryloxypropyl)1,1,3,3-tetrakis (trimethyl siloxy) disiloxane, tris(trimethylsiloxy) silylpropyl methacrylate, methylmethacrylate, methacrylic acid and tetraethylene glycol dimethacrylate.
Specification