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公开(公告)号：DE69407823T2
公开(公告)日：1998-06-10
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.
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公开(公告)号：DE69203010T2
公开(公告)日：1996-01-04
申请号：DE69203010
申请日：1992-03-05
Applicant: ESSILOR INT
Inventor： YEAN LEANIRITH , WAJS GEORGES , MARTIN GERARD , GUERRERO PATRICK
IPC: C08L101/00 , B29D11/00 , G02B1/04 , G02B3/00 , G02C7/02
Abstract: This procedure is of the kind in which the absorption, by a base-polymer material, of an additive composition enclosing at least one monomer capable of leading to a polymer of different refractive index is ensured. … According to the invention, by choosing a swelling composition as the additive composition, a first preform (P1) is produced, with a first geometry (G1), from a polymer material at a rate of advance sufficient for it to be self-supporting, a confinement volume (14) is defined between this first preform and an abutment element having a second geometry (G2) corresponding to a greater volume, and it is brought into contact there with a quantity of swelling additive composition sufficient for the swelling, to which it is then subjected, to cause it to match, under stress, this second geometry (G2). … Application, especially, to the production of ophthalmic lenses. … …
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公开(公告)号：AU6660594A
公开(公告)日：1995-11-29
申请号：AU6660594
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.
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公开(公告)号：FR2703056B1
公开(公告)日：1995-06-02
申请号：FR9303537
申请日：1993-03-26
Applicant: ESSILOR INT
Inventor： GARCIA RUBEN , KEITA GABRIEL , YEAN LEANIRITH
IPC: C08F18/24 , C08F216/02 , C08F218/00 , G02B1/04 , C08F222/16 , B29D11/00
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.
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公开(公告)号：AU643449B2
公开(公告)日：1993-11-18
申请号：AU5896190
申请日：1990-07-12
Applicant: ESSILOR INT
Inventor： YEAN LEANIRITH , BOCHU CHRISTOPHE
Abstract: Polyurethane composition for organic glasses, characterised in that it comprises: a first constituent consisting of an at least difunctional polyisocyanate, and a second constituent consisting of an acyclic saturated monomer carrying at least three functional groups reactive towards isocyanates to form carbamate bonds, among which reactive functional groups at least 40% of their number are mercaptan groups -SH, the proportion of the said reactive functional groups being at least 45% on a mass basis relative to the molecular mass of the said monomer.
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Patent Agency Ranking
公开(公告)号：FR2649711A1
公开(公告)日：1991-01-18
申请号：FR8909492
申请日：1989-07-13
Applicant: ESSILOR INT
Inventor： YEAN LEANIRITH , BOCHU CHRISTOPHE
Abstract: Polyurethane composition for organic glasses, characterised in that it comprises: a first constituent consisting of an at least difunctional polyisocyanate, and a second constituent consisting of an acyclic saturated monomer carrying at least three functional groups reactive towards isocyanates to form carbamate bonds, among which reactive functional groups at least 40% of their number are mercaptan groups -SH, the proportion of the said reactive functional groups being at least 45% on a mass basis relative to the molecular mass of the said monomer.
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公开(公告)号：BRPI0809918A2
公开(公告)日：2014-10-07
申请号：BRPI0809918
申请日：2008-03-25
Applicant: ESSILOR INT
Inventor： CHIU HAO-WEN , MAYR ROGER A , YEAN LEANIRITH
IPC: B29D11/00
Abstract: A method of forming thermoplastic polyurethane (TPU) into an optical lens. Suitable TPUs contain urethane (—NHCOO—) repeating units that are present in at least 23% by weight. This range of urethane weights is an indicator of a flexural modulus above 1,400 MPa. The TPUs have refractive indices above 1.54 and Abbe numbers above 27. They have glass transition temperatures above about 100 degrees C. The selected TPU can be injection molded to form ophthalmic lenses, that are well suited for use in rimless spectacles. The lenses are highly solvent resistant, while at the same time being readily tintable. The lenses made according the invention meet FDA 21 CFR 801.41 Impact Requirement, and ANSI Z87.1 high velocity impact (HVI) standard.
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公开(公告)号：DE60037180T2
公开(公告)日：2008-10-09
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.
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公开(公告)号：DE60206291T2
公开(公告)日：2006-07-13
申请号：DE60206291
申请日：2002-08-12
Applicant: ESSILOR INT
Inventor： PRIMEL ODILE , PILLIE MAXIME , DANTAS DE MORAIS TONY , YEAN LEANIRITH
Abstract: A lens has at least one insert ( 16, 28 ), which defines an optical path. For manufacturing the lens, the insert is first bonded to an overmould ( 36 ). A polymer ( 44 ) is then moulded in a mould ( 42, 36 ) formed on one of its faces from the overmould. After moulding, the overmould may be preserved and form part of the lens, if necessary after surface grinding. The overmould may also be separated from the lens; in this case, the lens is machined, removing at least part of the inserts. The lens obtained has an insert in a reproducible position, with an entrance or exit surface inducing no optical distortion.
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公开(公告)号：AT304937T
公开(公告)日：2005-10-15
申请号：AT02772151
申请日：2002-08-12
Applicant: ESSILOR INT
Inventor： PRIMEL ODILE , PILLIE MAXIME , DANTAS DE MORAIS TONY , YEAN LEANIRITH
Abstract: A lens has at least one insert ( 16, 28 ), which defines an optical path. For manufacturing the lens, the insert is first bonded to an overmould ( 36 ). A polymer ( 44 ) is then moulded in a mould ( 42, 36 ) formed on one of its faces from the overmould. After moulding, the overmould may be preserved and form part of the lens, if necessary after surface grinding. The overmould may also be separated from the lens; in this case, the lens is machined, removing at least part of the inserts. The lens obtained has an insert in a reproducible position, with an entrance or exit surface inducing no optical distortion.
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