CA2428071A1 - A tinted, high dk ophthalmic molding and a method for making same - Google Patents

A tinted, high dk ophthalmic molding and a method for making same Download PDF

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Publication number
CA2428071A1
CA2428071A1 CA002428071A CA2428071A CA2428071A1 CA 2428071 A1 CA2428071 A1 CA 2428071A1 CA 002428071 A CA002428071 A CA 002428071A CA 2428071 A CA2428071 A CA 2428071A CA 2428071 A1 CA2428071 A1 CA 2428071A1
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CA
Canada
Prior art keywords
tinted
pigment
soft
acrylate
molding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002428071A
Other languages
French (fr)
Other versions
CA2428071C (en
Inventor
Richard Charles Turek
Jacalyn Mary Schremmer
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Alcon Inc
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Individual
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Filing date
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Application filed by Individual filed Critical Individual
Publication of CA2428071A1 publication Critical patent/CA2428071A1/en
Application granted granted Critical
Publication of CA2428071C publication Critical patent/CA2428071C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • G02B1/043—Contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00076—Production of contact lenses enabling passage of fluids, e.g. oxygen, tears, between the area under the lens and the lens exterior
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00317—Production of lenses with markings or patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00865—Applying coatings; tinting; colouring
    • B29D11/00894—Applying coatings; tinting; colouring colouring or tinting
    • B29D11/00913—Applying coatings; tinting; colouring colouring or tinting full body; edge-to-edge
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G
    • C08F290/068—Polysiloxanes

Abstract

The invention relates to ophthalmic molding formulations and to tinted, high Dk ophthalmic moldings. This invention also relates to a method for making a tinted ophthalmic molding. The method comprises: (a) providing a polymer precursor having cross-linkable or polymerizable groups; (b) providing a pigment dispersion comprising an inorganic or organic pigment and a dispersing agent; (c) mixing the pigment dispersion with the polymer precursor to form a tinted prepolymer mixture; (d) dispensing the tinted prepolymer mixture into a mold; and (e) forming a tinted ophthalmic molding from the tinted prepolymer mixture, the molding comprising a polymer matrix having the pigment entrapped therein. With this method, tinted ophthalmic moldings, particularly edge-to-edge soft, tinted contact lenses having improved properties, are preparared with an improved efficiency.

Claims (29)

1. A soft, tinted ophthalmic molding comprising:
(i) a polymer matrix comprising a polysiloxane and having high oxygen permeability; and incorporated therein (ii) a pigment.
2. The soft, tinted ophthalmic molding of claim 1, wherein the polymer matrix is a core material and is at least in part surrounded by an ophthalmically compatible surface.
3. The soft, tinted ophthalmic molding of claim 1 or 2, wherein the ophthalmic molding is selected from the group consisting of a contact lens for vision correction, a contact lens for eye color modification, an ophthalmic drug delivery device and an ophthalmic wound healing device.
4. The soft, tinted ophthalmic molding of any one of claims 1 to 3, wherein the ophthalmic molding is a vision correction contact lens.
5. The soft, tinted ophthalmic molding of any one of claims 1 to 4, wherein the polymer matrix comprises the polymerization product of at least one polysiloxane containing macromer and at least one vinylic comonomer.
6. The soft, tinted ophthalmic molding of claim 5, wherein the polymer matrix comprises the polymerization product of (i) a polysiloxane containing macromer, (ii) a hydrophobic monomer selected from the group consisting of methyl acrylate, isobutyl acrylate, isooctyl acrylate, isodecyl acrylate, 2-ethylhexyl acrylate, hexafluorobutyl (meth)acrylate, acrylonitrile and TRIS, and (iii) a hydrophilic monomer selected from the group consisting of 2-hydroxyethyl methacrylate, acrylamide, methacrylamide, N, N-dimethylacrylamide, dimethylaminoethyl methacrylate, trimethylammonium-2-hydroxypropyl methacrylate hydrochloride, and N-vinyl-2-pyrrolidone.
7. The soft, tinted ophthalmic molding of any one of claims 1 to 6, wherein the pigment is a phthalocyanine pigment.
8. The soft, tinted ophthalmic molding of claim 6 or 7, wherein the pigment is copper phthalocyanine blue.
9. A method for making a soft, tinted ophthalmic molding comprising:
(a) providing a polymer precursor comprising a silicone-containing macromer which is capable of forming a polymer or copolymer having high oxygen permeability;
(b) providing a pigment dispersion comprising a pigment and a dispersing agent;
(c) mixing the pigment dispersion and the polymer precursor to form a tinted prepolymer mixture;
(d) dispensing the tinted prepolymer mixture into a mold; and (e) cross-linking or polymerizing the tinted prepolymer mixture in the mold to form a soft, tinted ophthalmic molding having high oxygen permeability comprising a polymer matrix and the pigment entrapped therein.
10. The method of claim 9, wherein the soft, tinted ophthalmic molding is a vision correction contact lens.
11. The method of claim 9 or 10, wherein the polymer precursor is a liquid material.
12. The method of any one of claims 9 to 11, wherein the polymer precursor comprises a poly(dimethyl siloxane macromer having a number average molecular weight of from 500 to 20,000.
13. The method of any one of claims 9 to 12, wherein the pigment dispersion is miscible with the polymer precursor.
14. The method of any one of claims 9 to 13, wherein the pigment comprises an organic pigment, an inorganic pigment, or a mixture thereof.
15. The method of claim 14, wherein the pigment is a phthalocyanine pigment.
16. The method of any one of claims 9 to 15, wherein the dispersing agent is same material as the polymer precursor of step (a).
17. The method of any one of claims 9 to 15, wherein the dispersing agent is an acrylated or methacrylated siloxane monomer.
18. The method of any one of claims 9 to 15, wherein the dispersing agent is any monomer comprising alkylenetris(trimethylsiloxy) silane.
19. The method of any one of claims 9 to 15, wherein the dispersing agent is selected from the group consisting of methyl methacrylate, isobutyl acrylate, isooctyl acrylate, isodecyl acrylate, 2-ethylhexyl acrylate, hexafluorobutyl (meth)acrylate, HEMA, TRIS
and acrylonitrile, or a mixture thereof.
20. The method of any one of claims 9 to 19, wherein the tinted prepolymer mixture according to step (c) in addition comprises at least one hydrophilic vinyl monomer.
21. The method of any one of claims 9 to 20, wherein the weight percentage of pigment, based on the total weight of the prepolymer mixture according to step (c), is from greater than zero to about 0.05 weight percent.
22. The method of any one of claims 9 to 21, wherein step (e) occurs in (e) 40 minutes.
23. A soft, tinted ophthalmic molding made by the method of any one of claims 9 to 22.
24. A composition for making a soft, tinted ophthalmic lens comprising:

(i) a cross-linkable or polymerizable material comprising a siloxane-containing macromer which is capable of forming a polymer or copolymer having high oxygen permeability; and (ii) a pigment dispersion comprising a pigment and a dispersing agent.
25. A composition of claim 24, wherein the dispersing agent is cross-linkable or polymerizable with component (I).
26. A composition of claim 24 or 25, wherein the dispersing agent is selected from the group consisting of methyl methacrylate, isobutyl acrylate, isooctyl acrylate, isodecyl acrylate, 2-ethylhexyl acrylate, hexafluorobutyl (meth)acrylate, HEMA, TRIS
and acrylonitrile, or a mixture thereof.
27. A composition of claim 24 or 25, wherein the cross-linkable or polymerizable material comprises a siloxane-containing macromer having a dialkyl siloxane group and the dispersing agent is TRIS.
28. A composition of any one of claims 24 to 27, wherein the cross-linkable or polymerizable material in addition comprises a hydrophilic vinyl monomer.
29. A soft, tinted ophthalmic lens comprising the reaction product of a composition according to any one of claims 24 to 28.
CA2428071A 2001-01-05 2002-01-03 A tinted, high dk ophthalmic molding and a method for making same Expired - Lifetime CA2428071C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25995701P 2001-01-05 2001-01-05
US60/259,957 2001-01-05
PCT/EP2002/000020 WO2002054136A2 (en) 2001-01-05 2002-01-03 A tinted, high dk ophthalmic molding and a method for making same

Publications (2)

Publication Number Publication Date
CA2428071A1 true CA2428071A1 (en) 2002-07-11
CA2428071C CA2428071C (en) 2011-03-01

Family

ID=22987175

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2428071A Expired - Lifetime CA2428071C (en) 2001-01-05 2002-01-03 A tinted, high dk ophthalmic molding and a method for making same

Country Status (10)

Country Link
US (4) US6774178B2 (en)
EP (2) EP2264486B1 (en)
JP (2) JP4638127B2 (en)
CN (1) CN1484771A (en)
AR (1) AR032085A1 (en)
BR (1) BR0206256A (en)
CA (1) CA2428071C (en)
MX (1) MXPA03006072A (en)
NO (1) NO20033016D0 (en)
WO (1) WO2002054136A2 (en)

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Publication number Publication date
CN1484771A (en) 2004-03-24
US20090096985A1 (en) 2009-04-16
JP4638127B2 (en) 2011-02-23
AR032085A1 (en) 2003-10-22
US6774178B2 (en) 2004-08-10
US20020137811A1 (en) 2002-09-26
MXPA03006072A (en) 2003-09-10
EP1360527A2 (en) 2003-11-12
US20040246436A1 (en) 2004-12-09
US7135521B2 (en) 2006-11-14
EP2264486A3 (en) 2011-04-06
US7847016B2 (en) 2010-12-07
EP1360527B1 (en) 2016-12-07
US20060116437A1 (en) 2006-06-01
US7456240B2 (en) 2008-11-25
WO2002054136A2 (en) 2002-07-11
JP4932893B2 (en) 2012-05-16
JP2010066774A (en) 2010-03-25
CA2428071C (en) 2011-03-01
NO20033016L (en) 2003-07-01
NO20033016D0 (en) 2003-07-01
BR0206256A (en) 2003-12-23
EP2264486B1 (en) 2018-08-22
EP2264486A2 (en) 2010-12-22
WO2002054136A3 (en) 2002-10-17
JP2004517360A (en) 2004-06-10

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