Invention Grant
US08048974B2 Initiators for optical coating formulations with reduced yellowness
有权
具有降低黄度的光学涂层配方的引发剂
- Patent Title: Initiators for optical coating formulations with reduced yellowness
- Patent Title (中): 具有降低黄度的光学涂层配方的引发剂
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Application No.: US12142452Application Date: 2008-06-19
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Publication No.: US08048974B2Publication Date: 2011-11-01
- Inventor: Ronald Berzon
- Applicant: Ronald Berzon
- Applicant Address: FR Charenton
- Assignee: Essilor International (Compagnie Generale d'Optique
- Current Assignee: Essilor International (Compagnie Generale d'Optique
- Current Assignee Address: FR Charenton
- Agency: Kausey & Associates, P.C.
- Main IPC: C08F4/34
- IPC: C08F4/34
Abstract:
The invention relates to a acrylated-based optical coating composition containing an organic peroxide initiator which presents a low yellowness level. The initiator has a range of free radical energy that is below a predetermined level. The cure process is controlled by the use a catalyst and a low energy initiator to avoid deleterious reactions that can increase yellowness. The composition is well suited to be applied to a lens and cured in the mold to form a coating with reduced yellowness having high adhesion and abrasion-resistant properties. A dye can be introduced into the composition to form a tinted lens.
Public/Granted literature
- US20090318619A1 INITIATORS FOR OPTICAL COATING FORMULATIONS WITH REDUCED YELLOWNESS Public/Granted day:2009-12-24
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