Low-tack ophthalmic and otorhinolaryngological device materials
View Patent ↗Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain one or more aryl acrylic hydrophobic monomers as principal device-forming monomers and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.
1. A polymeric ophthalmic or otorhinolaryngological device material comprising
a) a total of at least about 75% (w/w) of two or more aryl acrylic hydrophobic monomers of the formula
wherein:
A is H, CH 3 , CH 2 CH 3 , or CH 2 OH;
B is (CH 2 ) m or [O(CH 2 ) 2 ] z ;
C is (CH 2 ) w ;
m is 1-6;
z is 1-10;
Y is nothing, O, S, or NR′, provided that if Y is O, S, or NR′, then B is (CH 2 ) m ;
R′ is H, CH 3 , C n ′H 2n′+1 , iso-OC 3 H 7 ,C 6 H 5 , or CH 2 C 6 H 5 ;
w is 0-6, provided that m+w≦8; and
D is H, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 6 H 5 , CH 2 C 6 H 5 , Br, Cl, F, or I;
n′is 1-10;
b) a dimethylacryloxypropyl-terminated polydimethylsiloxane macromer in an amount effective to reduce the tack of the polymeric ophthalmic or otorhinolaryngological device material, wherein the dimethylacryloxypropyl-terminated polydimethylsiloxane macromer has the formula
wherein
R 1 and R 2 are independently —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 2 CH 3 , CH 2 CH 2 CH 2 CH 3 , —C 6 H 5 , —CH 2 C 6 H 5 , —CH 2 CH 2 C 6 H 5 , —CH 2 CH 2 CH 2 C 6 H 5 , or —CH 2 CH 2 CH 2 CH 2 C 6 H 5 ;
R 3 is H, CH 3 , or CH 2 CH 3 ;
z is 2-11; and
x indicates the number of repeating units and is such that the macromer has a molecular weight of about 300-about 3500; and
c) a cross-linking monomer;
wherein the dimethylacryloxypropyl-terminated polydimethylsiloxane macormer is present in an amount from 0.5 -3.9% (w/w).
2. The device material of claim 1 wherein the device material comprises two aryl acrylic hydrophobic monomers of the formula
wherein:
A is H, CH 3 , CH 2 CH 3 , or CH 2 OH;
B is (CH 2 ) m or [O(CH 2 ) 2 ] z ;
C is (CH 2 ) w ;
m is 1-6;
z is 1-10;
Y is nothing, O, S, or NR′, provided that if Y is O, S, or NR′, then B is (CH 2 ) m ;
R′ is H, CH 3 , C n ′H 2n′+1 , iso-OC 3 H 7 , C 6 H 5 , or CH 2 C 6 H 5 ;
w is 0-6, provided that m+w≦8; and
D is H, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 6 H 5 , CH 2 C 6 H 5 , Br, Cl, F, or I;
n′is 1-10.
3. The device material of claim 1 wherein A is H or CH 3 , B is (CH 2 ) m , m is 1-5, Y is nothing or O, w is 0-1, and D is H.
4. The device material of claim 1 wherein the aryl acrylic hydrophobic monomer is selected from the group consisting of benzyl methacrylate; 2-phenylethyl methacrylate; 4-phenylbutyl methacrylate; 5-phenylpentyl methacrylate; 2-benzyloxyethyl methacrylate; 3-benzyloxypropyl methacrylate; benzyl acrylate; 2-phenylethyl acrylate; 4-phenylbutyl acrylate; 5-phenylpentyl acrylate; 2-benzyloxyethyl acrylate; and 3-benzyloxypropyl acrylate.
5. The device material of claim 2 wherein the device material comprises two monomers selected from the group consisting of benzyl methacrylate; 2-phenylethyl methacrylate; 4-phenylbutyl methacrylate; 5-phenylpentyl methacrylate; 2-benzyloxyethyl methacrylate; 3-benzyloxypropyl methacrylate; benzyl acrylate; 2-phenylethyl acrylate; 4-phenylbutyl acrylate; 5-phenylpentyl acrylate; 2-benzyloxyethyl acrylate; and 3-benzyloxypropyl acrylate.
6. The device material of claim 1 further comprising one or more components selected from the group consisting of reactive UV absorbers and reactive blue-light absorbers.
7. The device material of claim 6 wherein the dimethylacryloxypropyl-terminated polydimethylsiloxane macromer is present in an amount from 0.5-2% (w/w).
8. The device material of claim 7 wherein the dimethylacryloxypropyl-terminated polydimethylsiloxane macromer is present in an amount from 0.8-1.2% (w/w).
9. The device material of claim 1 wherein R 1 =R 2 =CH 3 ; R 3 is H, CH 3 , or CH 2 CH 3 ; z=3; and x=0-22.
10. The device material of claim 9 wherein x=5-14.
11. The device material of claim 9 wherein x=2-5.
12. The device material of claim 1 wherein the material is an ophthalmic device material and has a refractive index of at least 1.50.
13. The device material of claim 1 wherein the material has a Tg less than about +15° C.
14. The device material of claim 1 wherein the material has an elongation of at least 90%.
15. The device material of claim 1 wherein the cross-linking component comprises one or more cross-linking agents selected from the group consisting of ethylene glycol dimethacrylate; diethylene glycol dimethacrylate; allyl methacrylate; 1,3-propanediol dimethacrylate; 2,3-propanediol dimethacrylate; 1,6-hexanediol dimethacrylate; 1,4-butanediol dimethacrylate; CH 2 ═C(CH 3 )C(═O)O—(CH 2 CH 2 O) p —C(═O)C(CH 3 )═CH 2 where p=1-50; CH 2 ═C(CH 3 )C(═O)O(CH 2 ) t OC(═O)C(CH 3 )═CH 2 where t=3-20; and their corresponding acrylates.
16. The device material of claim 1 wherein the cross-linking monomer is present in an amount of about 0.01-17% (w/w).
17. An intraocular lens optic comprising the device material of claim 1 .
18. A device comprising the device material of claim 1 wherein the device is selected from the group consisting of a contact lens; a keratoprosthesis, a corneal inlay or ring; an otological ventilation tube; and a nasal implant.