[EN] UV ABSORBING OCULAR LENS<br/>[FR] LENTILLE OCULAIRE ABSORBANT LES UV
申请人:COMMW SCIENT IND RES ORG
公开号:WO2020118361A1
公开(公告)日:2020-06-18
Ocular lenses having UV absorbing properties are disclosed. The ocular lens comprises a hydrogel polymer comprising polymerised residues derived from a polymerisable UV absorber of formula (I): U-L-Py (I) wherein: U is a UV absorbing moiety; L is a hydrophilic non-polyalkylene glycol linker comprising an anionic, a zwitterionic or a saccharide moiety; and Py is an ethylenically unsaturated polymerisable moiety.
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THERMAL RECORDING MATERIAL CONTAINING TRIS(2-METHYL- 4-HYDROXY-5-t-BUTYLPHENYL)BUTANE
申请人:Tobita Etsuo
公开号:US20100249466A1
公开(公告)日:2010-09-30
A thermal recording material of the invention contains, as a storability improver, tris(2-methyl-4-hydroxy-5-t-butylphenyl)butane trapping and containing water and/or methanol and having a crystal structure that shows a maximum X-ray diffraction peak at a diffraction angle 2θ of 6.58° according to X-ray diffraction measurement using an X ray having a wavelength of a Cu—Kα line. The recording material has improved heat resistance in non-printing sections while maintaining the moisture-and-heat resistance in printing sections. The thermal recording material of the invention has a thermal-recording layer that contains the tris(2-methyl-4-hydroxy-5-t-butylphenyl)butane in an amount of preferably 0.1 to 15% by mass with respect to the thermal-recording layer. The amount of the water and/or methanol trapped and contained in the tris(2-methyl-4-hydroxy-5-t-butylphenyl)butane is preferably 0.1 to 10% by mass in total.
[EN] AZACOUMARIN AND AZATHIOCOUMARIN DERIVATIVES FOR USE IN OPTICALLY ACTIVE DEVICES<br/>[FR] DÉRIVÉS D'AZACOUMARINES ET D'AZATHIOCOUMARINE DESTINÉS À ÊTRE UTILISÉS DANS DES DISPOSITIFS OPTIQUEMENT ACTIFS
申请人:MERCK PATENT GMBH
公开号:WO2021233800A1
公开(公告)日:2021-11-25
The present invention relates to novel ophthalmic devices comprising polymerized compounds comprising a photoactive chromophore, said polymerized compounds, and special monomer compounds being particularly suitable for compositions and ophthalmic devices. The present invention is also directed to a process of changing the optical properties of said ophthalmic device or a precursor article for manufacturing said ophthalmic device.
HIGH REFRACTIVE INDEX POLYMER COMPOSITION FOR OPTHALMIC APPLICATIONS
申请人:Higgs Timothy Charles
公开号:US20130035414A1
公开(公告)日:2013-02-07
A monomer for a polymerisable composition is described, the monomer having the formula (I) wherein: R
1
is —H or alkyl; Z- is —O—, —NH— or —NR—, where -R is optionally substituted alkyl or C
5-10
aryl; Ar
1
and —Ar
2
are each independently optionally substituted C
5-10
aryl; R
2
is —H, or optionally substituted alkyl or C
5-10
aryl; and x and y are each independently 1 to 4. Also described are polymers formed from the composition, and ophthalmic lens products.
Polymeric materials for use as photoablatable inlays
申请人:——
公开号:US20030223954A1
公开(公告)日:2003-12-04
Optically transparent, high water content, hydrogel polymeric materials and photoablatable inlays fabricated therefrom are described herein. The preferred hydrogel polymeric materials have a refractive index of 1.30 or above in the hydrated state and a water content of approximately 60 percent or greater by weight. The preferred hydrogel polymeric materials likewise show no signs of cracking or haze following clinical ablation.