WO2025032504 - UV/HEVL-FILTERING SILICONE HYDROGEL CONTACT LENSES
National phase entry:
Publication Number
WO/2025/032504
Publication Date
13.02.2025
International Application No.
PCT/IB2024/057615
International Filing Date
06.08.2024
Title **
[English]
UV/HEVL-FILTERING SILICONE HYDROGEL CONTACT LENSES
[French]
LENTILLES DE CONTACT EN SILICONE HYDROGEL FILTRANT LES UV/HEVL
Applicants **
ALCON INC.
Inventors
CHANG, Ya-Wen
ZHANG, Steve Yun
Priority Data
63/517,997
07.08.2023
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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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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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2258 | |
| EPO | Filing, Examination, Granting | 10913 | |
| Japan | Filing, Examination, Granting | 2337 | |
| South Korea | Filing, Examination, Granting | 2350 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,598
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 UV/HEVL-filtering SiHy contact lens that not only has a relatively high UV/HEVL filtering capability but also has an aesthetic appealing color. The bulk silicone hydrogel of the UV/HEVL-filtering SiHy contact lens comprises repeating units of (1) at least one hydrophilic vinylic monomer, (2) at least one siloxane-containing vinylic monomer and/or at least one polysiloxane vinylic crosslinker, (3) at least one UV-absorbing vinylic monomer, and (4) a least one polymerizable HEVL-absorbing compound capable of absorbing HEVL between 380 nm and 450 nm and also comprises at least one blue-tinting agent and at least one optical brightener distributed therein.[French]
L'invention concerne une lentille de contact en SiHy filtrant les UV/HEVL qui non seulement a une capacité de filtrage des UV/HEVL relativement élevée mais a également une couleur esthétiquement attrayante. Le silicone hydrogel en vrac de la lentille de contact en SiHy filtrant les UV/HEVL comprend des motifs répétitifs de (1) au moins un monomère vinylique hydrophile, (2) au moins un monomère vinylique contenant du siloxane et/ou au moins un agent de réticulation vinylique de polysiloxane, (3) au moins un monomère vinylique absorbant les UV, et (4) au moins un composé absorbant la lumière visible à haute énergie (HEVL) polymérisable permettant d'absorber la HEVL entre 380 nm et 450 nm et comprend également au moins un agent de coloration bleue et au moins un azurant optique répartis en son sein.