WO2025243221 - REACTIVE HEVL-ABSORBING DYES
National phase entry is expected:
Publication Number
WO/2025/243221
Publication Date
27.11.2025
International Application No.
PCT/IB2025/055273
International Filing Date
21.05.2025
Title **
[English]
REACTIVE HEVL-ABSORBING DYES
[French]
COLORANTS RÉACTIFS ABSORBANT LA HEVL
Applicants **
ALCON INC.
Inventors
JING, Feng
ZHANG, Steve Yun
Priority Data
63/650,767
22.05.2024
US
Application details
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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 | 2136 | |
| EPO | Filing, Examination, Granting | 8507 | |
| Japan | Filing, Examination, Granting | 2171 | |
| South Korea | Filing, Examination, Granting | 2044 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,598
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Abstract[English]
The present invention is related to reactive dyes each of which comprises a dichlorotriazine, chlorotriazine or vinylsulphonyl group and is capable of absorbing HEVL. They are suitable for method for producing colored silicone hydrogel contact lenses each made of a silicone hydrogel material having hydroxyl groups. The present invention is also related to a colored silicone hydrogel contact lens comprising a colored circular region in which a reactive dye is applied and thereby covalently attached.[French]
La présente invention concerne des colorants réactifs dont chacun comprend un groupe dichlorotriazine, chlorotriazine ou vinylsulfonyle et est capable d'absorber la HEVL. Ils sont appropriés pour un procédé de production de lentilles de contact en hydrogel de silicone colorées constituées chacune d'un matériau d'hydrogel de silicone ayant des groupes hydroxyle. La présente invention concerne également une lentille de contact en hydrogel de silicone colorée comprenant une région circulaire colorée à laquelle un colorant réactif est appliqué et fixé de manière covalente.