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    32.
    发明专利
    未知

    公开(公告)号：DE60017357D1

    公开(公告)日：2005-02-17

    申请号：DE60017357

    申请日：2000-10-05

    Applicant: ESSILOR INT

    Inventor： PRIMEL ODILE ,  PILLIE MAXIME ,  RICHARD GILLES ,  YEAN LEANIRITH

    IPC: C08F2/38 ,  C08F220/38 ,  C08F228/02 ,  G02B1/04

    Abstract: The compositions comprise:(a) at least 40 parts by weight, preferably at least 50 parts by weight, of at least one thio(meth)acrylate monomer,(b) at least one high Abbe number monomer,(c) at the most 20 parts by weight, preferably at the most 15 parts by weight and more preferably 10 parts by weight of an aromatic polyvinyl monomer, and(d) at least one polythiol, for 100 parts by weight of (a), (b), (c) and (d).Application for the manufacture of optical lenses.

    36.
    发明专利
    未知

    公开(公告)号：DE69407823D1

    公开(公告)日：1998-02-12

    申请号：DE69407823

    申请日：1994-04-29

    Applicant: ESSILOR INT

    Inventor： GARCIA RUBEN ,  KEITA GABRIEL ,  YEAN LEANIRITH

    IPC: C08F18/24 ,  C08F216/02 ,  C08F218/00 ,  G02B1/04

    Abstract: Polymer composition obtained by polymérization of a polymerizable composition comprising: at least 50 % by weight of a monomer or a mixture of monomers of formula (I) wherein X is formula (II) and R and R' are H or CH3; 0-50 % by weight of one or more allylic, vinyl, acrylic or methacrylic mono or poly functional comonomer(s) (II): 0.2-10 % based on the weight of components (I) + (II), of a compound of formula (III) wherein R4 and R5 are hydrogen or a radical, R4 or R5 is a hydrogen atom, while the other forms a C5 or C7-C10 ring with R2; R1, R2 and R3 are hydrogen, alkyl which can be substituted by OH and/or interruped by an ether, ester or ketone function.

    METHOD AND DEVICE FOR PRODUCING A GRADED INDEX POLYMER
    37.
    发明专利
    METHOD AND DEVICE FOR PRODUCING A GRADED INDEX POLYMER 未知

    公开(公告)号：AU5872190A

    公开(公告)日：1991-01-10

    申请号：AU5872190

    申请日：1990-07-06

    Applicant: ESSILOR INT

    Inventor： YEAN LEANIRITH ,  WAJS GEORGES ,  MARTIN GERARD ,  GUERRERO PATRICK

    IPC: G01N21/41 ,  B01J4/00 ,  C08F2/00 ,  C08F2/02 ,  C08F18/14 ,  C08F18/24 ,  C08F218/00 ,  C08F263/00 ,  G02B1/04 ,  G02C7/02

    Abstract: The process according to the invention is of the kind according to which an additive substance (11) is diffused in a controlled manner within a base substance (10) which, made up of at least one partially polymerised monomer capable of resulting in a homopolymer of refractive index N1, is in the state of a gel, the additive substance itself being made up of at least one monomer capable of producing a homopolymer of refractive index N2 which differs from N1. According to the invention the additive substance (11) chosen is a mixture of at least two monomers (A, B) and the composition of this mixture is varied with time. Application to the production of components made of synthetic substance of optical quality suited especially to the production of ophthalmic lenses.

    38.
    发明专利
    未知

    公开(公告)号：DE60037180D1

    公开(公告)日：2008-01-03

    申请号：DE60037180

    申请日：2000-07-31

    Applicant: ESSILOR INT

    Inventor： RICHARD GILLES ,  PRIMEL ODILE ,  YEAN LEANIRITH

    IPC: C08F222/10 ,  G02C7/02 ,  C08F220/30 ,  C08F290/06 ,  G02B1/04

    Abstract: Polymerizable compositions for making transparent polymeric substrates, resulting transparent polymeric substrates and the applications thereof in optics. The composition comprises: from 35 to 70 parts by weight of one or more monomers (I) of formula: wherein R 1 and R 2 represent H or CH 3 , A is a divalent moiety of formula: m1 and m2 each are an integer in the range of 4 to 20, from 5 to 50 parts by weight of a monomer (II) comprising at least a urethane unit and at least two (meth)acrylate functions, and from 5 to 40 parts by weight of a monomer (III) with a high Abbe number and comprising one or more methacrylate functions, the total of the monomers (I), (II) and (III) representing 100 parts by weight.

    40.
    发明专利
    未知

    公开(公告)号：FR2797265B1

    公开(公告)日：2004-06-18

    申请号：FR9910032

    申请日：1999-08-02

    Applicant: ESSILOR INT

    Inventor： RICHARD GILLES ,  PRIMEL ODILE ,  YEAN LEANIRITH

    IPC: G02C7/02 ,  C08F222/10 ,  C08F290/06 ,  G02B1/04 ,  C08F220/26

    Abstract: The invention is a composition comprising: 40 to 95 parts by weight of one or several monomers (I) of formula (a) wherein: R1 and R2 represent H or CH; A represents a divalent radical of formula (b) or (c) wherein m1 and m2 represent each an integer ranging between 2 and 6; and 5 to 50 parts by weight of a monomer (II) comprising at least a urethane unit and at least two (meth)acrylate functions. The invention is useful for making optical and ophthalmic articles.

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