Invention Grant
- Patent Title: Eyeglass lens made of allyl diglycol carbonate resin
- Patent Title (中): 由烯丙基二甘醇碳酸酯树脂制成的眼镜镜片
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Application No.: US13012983Application Date: 2011-01-25
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Publication No.: US08415413B2Publication Date: 2013-04-09
- Inventor: Kanichi Tamura , Shoichi Mitsuuchi , Kenzo Wada
- Applicant: Kanichi Tamura , Shoichi Mitsuuchi , Kenzo Wada
- Applicant Address: JP Osaka
- Assignee: Talex Optical Co., Ltd.
- Current Assignee: Talex Optical Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Main IPC: C08K5/34
- IPC: C08K5/34 ; B32B27/28

Abstract:
[Problems] The invention provides a plastic lens for eyeglasses by using diethylene glycol bisallyl carbonate as a lens material and which is made to have a main absorption peak in a wavelength range of 565 nm to 605 nm by mixing a coloring agent in which a visible light-absorption spectroscopic spectrum contains an azaporphyrin compound and to be durable for use as eyeglasses and polarized eyeglasses owing to the good antiglare and visibility properties of the coloring agent.[Solving means] The eyeglass lens made of an allyl diglycol carbonate resin which has a main absorption peak of visible light spectroscopic transmittance in a wavelength range of 565 nm to 605 nm as shown in FIG. 1 is obtained by using diethylene glycol bisallyl carbonate as a lens material, mixing an organic coloring agent containing a tetraazaporphyrin compound, mixing a peroxyester type peroxide or a peroxyketal type peroxide with a 10 hour-half life temperature of 90 to 110° C. as a polymerization initiator, and polymerizing, defoaming, and curing the lens material.
Public/Granted literature
- US20120188503A1 EYEGLASS LENS MADE OF ALLYL DIGLYCOL CARBONATE RESIN Public/Granted day:2012-07-26
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