WO2023031818 - A METHOD FOR PRODUCING WETTABLE SILICONE HYDROGEL CONTACT LENSES
National phase entry:
Publication Number
WO/2023/031818
Publication Date
09.03.2023
International Application No.
PCT/IB2022/058166
International Filing Date
31.08.2022
Title **
[English]
A METHOD FOR PRODUCING WETTABLE SILICONE HYDROGEL CONTACT LENSES
[French]
PROCÉDÉ DE PRODUCTION DE LENTILLES DE CONTACT À BASE D'HYDROGEL DE SILICONE MOUILLABLES
Applicants **
ALCON INC.
Rue Louis-d'Affry 6
1701 Fribourg, CH
Inventors
WU, Daqing
c/o Alcon Research, LLC
11460 Johns Creek Parkway
Johns Creek, Georgia 30097, US
JING, Feng
c/o Alcon Research, LLC
11460 Johns Creek Parkway
Johns Creek, Georgia 30097, US
ZHANG, Steve Yun
c/o Alcon Research, LLC
11460 Johns Creek Parkway
Johns Creek, Georgia 30097, US
GE, Junhao
Zhongyi Road 888 Nong, Unit 95-702
Shanghai 201101, CN
TRIEU, Jack W.
c/o Alcon Research, LLC
11460 Johns Creek Parkway
Johns Creek, Georgia 30097, US
Priority Data
63/239,694
01.09.2021
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
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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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| Translation |
|
Recalculate
* 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 | 1608 | |
| EPO | Filing, Examination | 6992 | |
| Japan | Filing | 589 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 12474 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
alkoxyethyl (meth)acrylate, at least one free-radical initiator, and at least one solvent selected from the group consisting of water, propylene glycol, and/or a low-molecular weight polyethyleneglycol; and heating the cast-molded silicone hydrogel contact lens in an aqueous coating solution to form a coated silicone hydrogel contact lens comprising a bulk silicone hydrogel material and a layer of a crosslinked hydrophilic polymeric material that is covalently attached onto the bulk silicone hydrogel material. Resultant contact lenses are optically clear and wettable and have a relatively high oxygen permeability.[French]
, au moins un initiateur de radicaux libres, et au moins un solvant choisi dans le groupe constitué par l'eau, le propylène glycol, et/ou un polyéthylène glycol à faible masse moléculaire ; et chauffer la lentille de contact à base d'hydrogel de silicone moulée par coulée dans une solution de revêtement aqueuse pour former une lentille de contact à base d'hydrogel de silicone revêtue comprenant un matériau d'hydrogel de silicone en vrac et une couche d'un matériau polymère hydrophile réticulé qui est lié de manière covalente sur le matériau d'hydrogel de silicone en vrac. Les lentilles de contact ainsi obtenues sont optiquement transparentes et mouillables et présentent une perméabilité à l'oxygène relativement élevée.