METHOD FOR PREPARING ANTISTATIC UV CURABLE HARDCOATINGS ON OPTICAL ARTICLES

    公开(公告)号:CA2830092A1

    公开(公告)日:2012-09-27

    申请号:CA2830092

    申请日:2011-03-18

    Applicant: ESSILOR INT

    Inventor: VALERI ROBERT

    Abstract: The present invention is drawn to a liquid photocurable composition comprising: - from 25 to 65 % by weight relative to the total weight of the composition, of a mixture of polyfunctional acrylic monomers, said mixture consisting of (c) at least one monomer comprising at least six acrylic functional groups, and (d) at least one monomer comprising two, three or four (meth)acrylic functional groups, preferably two or three acrylic functional groups, - from 25 to 70 % by weight, relative to the total weight of the composition, of at least one organic solvent, - from 8.0 to 20.0 % by weight, preferably from 8.5 to 12 % by weight, relative to the total solids content of the composition, of at least one mineral conductive colloid, - from 0.5 to 5 % by weight, preferably from 1.0 4.0 % by weight, relative to the total weight of acryl functional monomers (a) and (b), of at least one radical photoinitiator, said photocurable composition not containing any epoxy-functional monomer. The present invention is also drawn to a method for preparing such a composition and for a method of producing antistatic hardcoatings on optical articles using such a composition.

    Heat-curable epoxy functional composition and transparent heat-cured caustic-resistant hard-coatings prepared therefrom

    公开(公告)号:AU2009356743A1

    公开(公告)日:2012-06-21

    申请号:AU2009356743

    申请日:2009-12-17

    Applicant: ESSILOR INT

    Inventor: VALERI ROBERT

    Abstract: A heat-curable composition comprises - from 25 to 65 % by weight of a mixture of epoxy-functional monomers, said mixture consisting of at least one polyfunctional epoxy monomer selected from monomers comprising from 4 to 8 glycidyl groups and/or cycloaliphatic epoxy groups, and at least one bi- or tri-functional epoxy monomer selected from monomers comprising two or three glycidyl groups and/or cycloaliphatic epoxy groups, - from 25 to 70 % by weight of at least one organic solvent selected from glycol monoethers, - from 2.5 to 5 % by weight, relative to the total weight of epoxyfunctional monomers (a) and (b), of at least one blocked strong acid catalyst, said heat-curable composition not containing any non-epoxyfunctional monomers, in particular not containing any acrylic, methacrylic or silane monomers.

    PROCEDIMIENTO PARA LA PREPARACION DE UN RECUBRIMIENTO RESISTENTE A LA ABRASION SOBRE UN SUSTRATO DE VIDRIO ORGANICO.

    公开(公告)号:ES2266210T3

    公开(公告)日:2007-03-01

    申请号:ES01945327

    申请日:2001-06-28

    Applicant: ESSILOR INT

    Abstract: Procedimiento para preparar un recubrimiento resistente a la abrasión sobre por lo menos una superficie de un sustrato realizado en un vidrio orgánico que comprende: (a) preparar una composición polimerizable que contiene un componente A que comprende por lo menos un compuesto silano que contiene por lo menos un grupo epoxi y por lo menos dos grupos alcoxi directamente unidos al átomo de Si de la molécula o un hidrolizado de los mismos, y un componente B que comprende partículas finas de sílice, entre 0, 1% y 3% en peso de por lo menos un iniciador de fotopolimerización catiónica y entre 0, 005% y 0, 25% en peso de por lo menos un catalizador de polimerización térmica; (b) recubrir por lo menos una superficie del sustrato con la composición resultante de la etapa (a); (c) someter el sustrato recubierto a una etapa de fotopolimerización para el precurado de la capa de recubrimiento, y seguidamente: (d) someter el sustrato con la capa de recubrimiento precurada sobre el mismo a un curado térmico a una temperatura de entre 50ºC y 500ºC y durante menos de 1 minuto para el curado completo de la capa de recubrimiento.

    36.
    发明专利
    未知

    公开(公告)号:DE60120411T2

    公开(公告)日:2006-12-28

    申请号:DE60120411

    申请日:2001-06-28

    Applicant: ESSILOR INT

    Abstract: The process comprises, (a) adding to a polymerizable composition containing a component A comprising at least one silane compound containing at least one epoxy group and at least two alkoxy groups directly bonded to the Si atom of the molecule or hydrolysate thereof and a component B comprising fine particles of silica, an effective amount of at least one cationic photopolymerization initiator and an effective amount of at least one thermal polymerization catalyst, (b) coating at least one surface of the substrate with the composition resulting from step (a), (c) submitting the coated substrate to a photopolymerization step for pre-curing the coating layer; and thereafter, (d) submitting the substrate with the pre-cured coating layer thereon to a thermal curing at a predetermined temperature and for a predetermined time to complete curing of the coating layer.

    Composición polimérica y métodos que utilizan dicha composición polimérica para elaborar lentes oftálmicas

    公开(公告)号:ES2673569T3

    公开(公告)日:2018-06-22

    申请号:ES13854196

    申请日:2013-12-20

    Applicant: ESSILOR INT

    Abstract: Composición polimérica para elaborar una lente oftálmica transparente caracterizada por que se obtiene por polimerización de una composición polimerizable que comprende al menos: - un monómero u oligómero (A) que comprende al menos un grupo reactivo seleccionado entre epoxi, tioepoxi, epoxisilano, (met)acrilato, tio(met)acrilato, vinilo, uretano, tiouretano, isocianato, mercapto y alcohol, donde dicho monómero (A) se contrae durante la polimerización; - un monómero (B) que comprende al menos un grupo cíclico no aromático donde durante la polimerización dicho grupo cíclico se abre y reacciona con otra molécula de monómero (B) y/o con un grupo reactivo del monómero u oligómero (A), - donde dicho monómero (B) se expande durante la polimerización y donde dicho monómero (B) se selecciona entre tetraspiroortocarbonato y sulfatos cíclicos.

    METHOD FOR PREPARING ANTISTATIC UV CURABLE HARDCOATINGS ON OPTICAL ARTICLES

    公开(公告)号:CA2823588C

    公开(公告)日:2018-05-01

    申请号:CA2823588

    申请日:2011-01-04

    Applicant: ESSILOR INT

    Inventor: VALERI ROBERT

    Abstract: The present invention is drawn to a method for manufacturing antistatic UV-cured hard-coatings on optical articles, comprising (a) coating an organic or mineral optical substrate with an essentially anhydrous solution containing from 20 % to 90 % by weight, relative to the total dry matter of the solution, of at least one non hydrolyzed epoxyalkyltrialkoxysilane and at least 3.2 % by weight, relative to the total dry matter of the solution, of at least one photoinitiator selected from the group consisting of triarylsulfonium salts, diaryliodonium salts, and mixtures thereof, (b) curing the resulting coating by irradiation with UV-radiation, said method not comprising any hydrolysis step before the UV curing step.

    СПОСОБ ПОЛУЧЕНИЯ АНТИСТАТИЧЕСКИХ ТВЁРДЫХ УФ-ОТВЕРЖДАЕМЫХ ПОКРЫТИЙ НА ОПТИЧЕСКИХ ИЗДЕЛИЯХ

    公开(公告)号:EA024448B9

    公开(公告)日:2016-12-30

    申请号:EA201300795

    申请日:2011-01-04

    Inventor: VALERI ROBERT

    Abstract: Настоящееизобретениеотноситсяк способуизготовленияантистатическихУФ-отверждённыхтвёрдыхпокрытийнаоптическихизделиях, включающемустадии, накоторых: (a) наорганическуюилинеорганическуюоптическуюподложкунаносят, посуществу, безводныйраствор, включающий 20-90 мас.% относительнообщеймассысухоговеществав растворепоменьшеймереодногонегидролизованногоэпоксиалкилтриалкоксисиланаи поменьшеймере 3,2 мас.% относительнообщеймассысухоговеществав растворепоменьшеймереодногофотоинициатора, выбранногоизгруппы, состоящейизсолейтриарилсульфония, солейдиарилйодонияи ихсмесей, (b) полученноепокрытиеотверждаютприоблученииУФ-излучением.

    Method for preparing antistatic uv curable hard-coatings on optical articles

    公开(公告)号:NZ613069A

    公开(公告)日:2015-02-27

    申请号:NZ61306911

    申请日:2011-01-04

    Applicant: ESSILOR INT

    Inventor: VALERI ROBERT

    Abstract: Disclosed is a method for manufacturing antistatic UV-cured hard-coatings on optical articles, comprising (a) coating an organic or mineral optical substrate with an essentially anhydrous solution containing from 20 % to 90 % by weight, relative to the total dry matter of the solution, of at least one non hydrolysed epoxyalkyltrialkoxysilane and at least 3.2 % by weight, relative to the total dry matter of the solution, of at least one photoinitiator selected from the group consisting of triarylsulfonium salts, diaryliodonium salts, and mixtures thereof, (b) curing the resulting coating by irradiation with UV-radiation, said method not comprising any hydrolysis step before the UV curing step.

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