Invention Grant
- Patent Title: Composition for the manufacture of an ophthalmic lens comprising an encapsulated light-absorbing additive
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Application No.: US16323945Application Date: 2017-08-09
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Publication No.: US11327202B2Publication Date: 2022-05-10
- Inventor: Pierre Fromentin , Sanya Hokputsa
- Applicant: ESSILOR INTERNATIONAL
- Applicant Address: FR Charenton-le-Pont
- Assignee: ESSILOR INTERNATIONAL
- Current Assignee: ESSILOR INTERNATIONAL
- Current Assignee Address: FR Charenton-le-Pont
- Agency: Norton Rose Fulbright US LLP
- Priority: EP16306039 20160809
- International Application: PCT/EP2017/070191 WO 20170809
- International Announcement: WO2018/029249 WO 20180215
- Main IPC: G02B1/04
- IPC: G02B1/04 ; C08F220/14 ; C08K9/12 ; B29D11/00 ; C08F2/44 ; C08F120/14 ; C08F212/08 ; C08K3/22 ; C09B67/08 ; G03C1/685 ; B82Y30/00 ; C08K5/00
Abstract:
The present invention relates to a thermosetting composition for the manufacture of an ophthalmic lens which efficiently absorbs light rays without degradation of the light-absorbing additive, said composition comprising an allyl monomer or oligomer, a catalyst, at least one light-absorbing additive contained in nanoparticles which are dispersed in said allyl monomer or allyl oligomer. The present invention also relates to the use of said composition and to the ophthalmic lens obtained from said composition.
Public/Granted literature
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