12.
    发明专利
    未知

    公开(公告)号:AT389694T

    公开(公告)日:2008-04-15

    申请号:AT04722844

    申请日:2004-03-24

    Applicant: ESSILOR INT

    Abstract: Disclosed is a thiophosphine compound of formula: wherein X represents with R 1 being H or -CH 3 , R and R' represent, independently from each other, an alkyl radical, an alkoxy radical, an aryl radical or a phenyl radical which may be substituted with one or more alkyl and/or alkoxy groups, n is an integer from 0 to 4, n' is an integer from 0 to 5, x is an integer from 0 to 2, y is an integer from 1 to 5 with the proviso that y+n is an integer from 1 to 5. The compounds can be used to make optically transparent articles such as ophthalmic lenses.

    Transparent optical article having a reduced yellowness appearance

    公开(公告)号:AU2013409186A1

    公开(公告)日:2016-07-07

    申请号:AU2013409186

    申请日:2013-12-23

    Applicant: ESSILOR INT

    Abstract: The present invention relates to a transparent optical article (e.g. an ophthalmic lens) comprising a thermoplastic substrate and a dye at least partially inhibiting light having a wavelength ranging from 400 to 460 nm and an optical brightener for at least partially balancing the colour imparted to the transparent optical article by the dye, wherein said optical brightener emits light by fluorescence at a wavelength ranging from 400 to 460 nm and is incorporated into a layer fused or bonded to the thermoplastic substrate. Said optical brightener allows for perception of said optical article as less yellow, and even colourless, to a user or to an observer. In addition, the UV-absorbers that may be present in the thermoplastic substrate do not negatively interact with the optical brightener.

    Photocurable adhesive composition and its use in the optical field

    公开(公告)号:AU2004230413C1

    公开(公告)日:2011-01-27

    申请号:AU2004230413

    申请日:2004-04-15

    Applicant: ESSILOR INT

    Abstract: The invention concerns a photocurable adhesive composition comprising, based on total weight of photopolymerizable monomers and/or oligomers of the composition: 5 to 60 wt % of at least one mono or polyacrylate monomer or oligomer thereof (A); 5 to 50 wt % of at least one thio(meth)acrylate monomer or oligomer thereof (B); and 20 to 50 wt % of at least one aromatic dimethacrylate monomer or oligomer thereof (C); with the proviso that the composition does not contain a brominated monofunctional acrylate.

    Photocurable adhesive composition and its use in the optical field

    公开(公告)号:AU2004230413B2

    公开(公告)日:2010-03-11

    申请号:AU2004230413

    申请日:2004-04-15

    Applicant: ESSILOR INT

    Abstract: The invention concerns a photocurable adhesive composition comprising, based on total weight of photopolymerizable monomers and/or oligomers of the composition: 5 to 60 wt % of at least one mono or polyacrylate monomer or oligomer thereof (A); 5 to 50 wt % of at least one thio(meth)acrylate monomer or oligomer thereof (B); and 20 to 50 wt % of at least one aromatic dimethacrylate monomer or oligomer thereof (C); with the proviso that the composition does not contain a brominated monofunctional acrylate.

    19.
    发明专利
    未知

    公开(公告)号:DE602004016990D1

    公开(公告)日:2008-11-20

    申请号:DE602004016990

    申请日:2004-04-15

    Applicant: ESSILOR INT

    Abstract: The invention concerns a photocurable adhesive composition comprising, based on total weight of photopolymerizable monomers and/or oligomers of the composition: 5 to 60 wt % of at least one mono or polyacrylate monomer or oligomer thereof (A); 5 to 50 wt % of at least one thio(meth)acrylate monomer or oligomer thereof (B); and 20 to 50 wt % of at least one aromatic dimethacrylate monomer or oligomer thereof (C); with the proviso that the composition does not contain a brominated monofunctional acrylate.

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