WO2024246822 - METHOD FOR MAKING EMBEDDED SILICONE HYDROGEL CONTACT LENSES
National phase entry is expected:
Publication Number
WO/2024/246822
Publication Date
05.12.2024
International Application No.
PCT/IB2024/055294
International Filing Date
30.05.2024
Title **
[English]
METHOD FOR MAKING EMBEDDED SILICONE HYDROGEL CONTACT LENSES
[French]
PROCÉDÉ DE FABRICATION DE LENTILLES DE CONTACT INTÉGRÉES EN SILICONE HYDROGEL
Applicants **
ALCON INC.
Rue Louis-D'Affry 6
1701 Fribourg, CH
Inventors
BREITKOPF, Richard Charles
4320 Huntington Circle
Dunwoody, Georgia 30338, US
SAMUEL, Newton T.
c/o Alcon Research, LLC
11460 Johns Creek Parkway
Johns Creek, Georgia 30097, US
CHANG, Ya-Wen
c/o Alcon Research, LLC
11460 Johns Creek Parkway
Johns Creek, Georgia 30097, US
BASSAMPOUR, Zahra
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
Priority Data
63/505,530
01.06.2023
US
63/505,533
01.06.2023
US
63/505,539
01.06.2023
US
63/505,542
01.06.2023
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
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Translation |
|
Recalculate
* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1607 | |
| EPO | Filing, Examination | 6919 | |
| Japan | Filing | 526 | |
| South Korea | Filing | 673 | |
| USA | Filing, Examination | 2635 |
Total: 12360 USD
Abstract[English]
The invention provides a method for producing embedded contact lenses involving a mold set in a two-curing-step process and a fast-curing SiHy lens formulation. The mold set consists of three mold halves, one of which is used twice, the first time for molding an insert from an insert-forming composition and the second time for an embedded contact lens with the molded insert embedded therein from the fast curing SiHy lens formulation that comprises a N,N-dialkylacrylamide, a hydrophilic (meth)acrylamido monomer, and a polysiloxane vinylic crosslinker and being free of any siloxane-containing vinylic monomer.[French]
L'invention concerne un procédé de production de lentilles de contact intégrées impliquant un ensemble de moules dans un procédé à deux étapes de durcissement et une formulation de lentille SiHy à durcissement rapide. L'ensemble de moules est constitué de trois moitiés de moule, dont l'une est utilisée deux fois, la première fois pour mouler un insert à partir d'une composition de formation d'insert et la seconde fois pour une lentille de contact intégrée avec l'insert moulé intégré dans celle-ci à partir de la formulation de lentille SiHy à durcissement rapide qui comprend un N,N-dialkylacrylamide, un monomère (méth)acrylamido hydrophile, et un agent de réticulation vinylique de polysiloxane et étant exempte de tout monomère vinylique contenant du siloxane.