WO2023228054 - METHOD FOR MAKING HEVL-FILTERING CONTACT LENSES
National phase entry:
Publication Number
WO/2023/228054
Publication Date
30.11.2023
International Application No.
PCT/IB2023/055256
International Filing Date
22.05.2023
Title **
[English]
METHOD FOR MAKING HEVL-FILTERING CONTACT LENSES
[French]
PROCÉDÉ DE FABRICATION DE LENTILLES DE CONTACT À FILTRAGE HEVL
Applicants **
ALCON INC.
Inventors
TANG, Houliang
SNIADY, Adam K.
CHANG, Frank
HOLLAND, Troy Vernon
Priority Data
63/344,759
23.05.2022
US
Application details
| Total Number of Claims/PCT | * |
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| Number of Drawings | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2148 | |
| EPO | Filing, Examination, Granting | 8550 | |
| Japan | Filing, Examination, Granting | 2179 | |
| South Korea | Filing, Examination, Granting | 2012 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,629
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
Described herein is a method for producing HEVL-filtering contact lenses in a relatively efficient and consistent manner from a polymerizable composition under a controlled thermal curing scheme. The polymerizable composition comprises at least one N- vinyl amide monomer and at least one Cu(II)-meso-aryl-substituted porphyrin free of any ethylenically unsaturated group. The resultant HEVL-filtering contact lenses each comprise a polymer matrix to which the Cu(II)-meso-aryl-substituted porphyrin is grafted or covalently attached.[French]
La présente invention concerne un procédé de production de lentilles à filtrage HEVL d’une manière relativement efficace et cohérente à partir d’une composition polymérisable sous un schéma de durcissement thermique contrôlé. La composition polymérisable comprend au moins un monomère N-vinyl amide et au moins une porphyrine à substitution Cu(II)-méso-aryle exempte de tout groupe à insaturation éthylénique. Les lentilles de contact à filtrage HEVL résultantes comprennent chacune une matrice polymère à laquelle la porphyrine à substitution Cu(II)-méso-aryle est greffée ou liée de manière covalente.