公开(公告)号：CA2465796A1

公开(公告)日：2003-05-15

申请号：CA2465796

申请日：2002-11-04

Applicant: ESSILOR INT

Inventor： TURSHANI YASSIN YUSEF ,  MCCLIMANS PAMELA ANNE ,  KEITA GABRIEL ,  OBORDO JOEY OLIVEROS

IPC: C08G18/72 ,  C08G18/10 ,  C08G18/38 ,  G02B1/04

Abstract: A method of fast curing polythiourethane transparent casted substrate, usabl e for making optical articles such as ophthalmic lenses, which comprises the steps of: 1) Providing a first componentA comprising a polythiourethane prepolymer having isocyanate or isothiocyanate end groups and a viscosity at 25 ~C ranging from 0.02 to 0.4 Pa.s; 2) Providing a second component B comprising a polythiourethane prepolymer having thiol (SH) end groups and a viscosity at 25 ~C ranging from 0.2 to 2.0 Pa.s; 3) Mixing together first an d second components A and B and filling a moulding cavity of a casting mould assembly with the resulting mixture ; 4) Curing said mixture to obtain a transparent solid substrate, said curing step comprising: a) a first step fo r polymerizing said mixture to obtain a gel within 1 to 10 minutes; and b) a second step of post-curing the gel to obtain the transparent solid substrate ; and 5) Recovering the transparent solid substrate from the mould.

公开(公告)号：AU8774701A

公开(公告)日：2002-04-02

申请号：AU8774701

申请日：2001-09-24

Applicant: ESSILOR INT

Inventor： JALLOULI AREF BEN AHMED ,  KEITA GABRIEL ,  WEBER STEVE ,  TURSHANI YASSIN

IPC: C08G75/08 ,  G02B1/04 ,  C08G75/00

Abstract: The room temperature polymerizable composition comprises at least one polymerizable monomer having at least one episulfide functionality and an effective amount of at least one (alkoxyphenyl)phosphine polymerization catalyst.

公开(公告)号：AU6203899A

公开(公告)日：2000-05-22

申请号：AU6203899

申请日：1999-10-20

Applicant: ESSILOR INT

Inventor： KEITA GABRIEL ,  MCCLIMANS PAMELA ANNE ,  WEBER STEVE ,  TURSHANI YASSIN

IPC: G02B1/04 ,  C08G18/22 ,  C08G18/38 ,  C08G75/08 ,  C08J5/00 ,  C08G18/18

公开(公告)号：CA2348410A1

公开(公告)日：2000-05-11

申请号：CA2348410

申请日：1999-10-20

Applicant: ESSILOR INT

Inventor： KEITA GABRIEL ,  TURSHANI YASSIN ,  WEBER STEVE ,  MCCLIMANS PAMELA ANNE

IPC: G02B1/04 ,  C08G18/22 ,  C08G18/38 ,  C08G75/08 ,  C08J5/00 ,  C08G18/18

Abstract: The polymerizable compositions comprise: A) at least one polyiso(thio)cyanat e monomer, and at least one polythiol monomer; or at least one episulfide compound and optionally one or more compounds having two or more functional groups capable of reacting with episulfide groups; and B) as polymerization catalyst, an effective amount of a salt of formula (MPm + Yn-), Y- is an ani on such as the corresponding acid YH has a pKa fulfilling the condition 0.5 < ;= pKa

公开(公告)号：ES2114685T3

公开(公告)日：1998-06-01

申请号：ES94915196

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.

公开(公告)号：FR2734827A1

公开(公告)日：1996-12-06

申请号：FR9506442

申请日：1995-05-31

Applicant: ESSILOR INT

Inventor： KEITA GABRIEL ,  JIANG PEIQI

IPC: G02C7/02 ,  B29D11/02 ,  B29K33/04 ,  C08F2/48 ,  C08F20/38 ,  C08F220/38 ,  C08F228/02 ,  G02B1/04 ,  B29D11/00

公开(公告)号：FR2699541B1

公开(公告)日：1995-04-28

申请号：FR9215533

申请日：1992-12-22

Applicant: ESSILOR INT

Inventor： KEITA GABRIEL ,  GABRIEL KEITA ,  RENAUDINEAU JOEL ,  JOEL RENAUDINEAU

IPC: B29C39/00 ,  B29D11/00 ,  B29K33/00 ,  B29L11/00 ,  C08F20/26 ,  G02C7/02 ,  C08F20/38 ,  C08F220/10 ,  C08F220/28 ,  C08F220/30 ,  C08F290/00 ,  C08F290/06 ,  G02B1/04 ,  C08L33/14

Abstract: Composition polymère résultant de la polymérisation d'une composition polymérisable comprenant: - au moins 50 % en poids d'un monomère ou d'un mélange de monomères répondant à la formule I (CF DESSIN DANS BOPI) dans laquelle R1 et R2 , identiques ou différents, désignent hydrogène ou alkyle en C1 -C6 ; X désigne (CF DESSIN DANS BOPI) m + n est compris entre 0 et 10 . 0 à 50 % en poids d'un ou plusieurs comonomères vinylique(s), acrylique(s), ou méthacrylique(s) mono ou poly fonctionnel(s) (II): - de 0,5 à 15 % par rapport au poids des composants I + II, d'un composé de formule (III) (CF DESSIN DANS BOPI) dans laquelle R3 et R4 désignent hydrogène ou bien l'un des radicaux R3 ou R4 est un atome d'hydrogène tandis que l'autre forme un cycle avec R7 , R5 , R6 et R7 sont hydrogène, alkyle pouvant être substitué(s) par OH et/ou interrompue.

公开(公告)号：CO6990677A2

公开(公告)日：2014-07-10

申请号：CO14134044

申请日：2014-06-20

Applicant: ESSILOR INT

Inventor： CITEK KARL ,  BAILLET GILLES ,  DE AYGUAVIVES FRANCISCO ,  KEITA GABRIEL

IPC: A61F9/02

公开(公告)号：DE60132794T2

公开(公告)日：2009-03-05

申请号：DE60132794

申请日：2001-09-24

Applicant: ESSILOR INT

Inventor： JALLOULI AREF BEN ,  KEITA GABRIEL ,  WEBER STEVE ,  TURSHANI YASSIN

IPC: C08G75/00 ,  C08G75/08 ,  G02B1/04

Abstract: The room temperature polymerizable composition comprises at least one polymerizable monomer having at least one episulfide functionality and an effective amount of at least one (alkoxyphenyl)phosphine polymerization catalyst.

公开(公告)号：AU2002351825B2

公开(公告)日：2008-02-14

申请号：AU2002351825

申请日：2002-11-04

Applicant: ESSILOR INT

Inventor： KEITA GABRIEL ,  TURSHANI YASSIN YUSEF ,  MCCLIMANS PAMELA ANNE ,  OBORDO JOEY OLIVEROS

IPC: C08G18/72 ,  C08G18/10 ,  C08G18/38 ,  G02B1/04

Abstract: A method of fast curing polythiourethane transparent casted substrate, usable for making optical articles such as ophthalmic lenses, which comprises the steps of: 1) Providing a first component A comprising a polythiourethane prepolymer having isocyanate or isothiocyanate end groups and a viscosity at 25° C. ranging from 0.02 to 0.4 Pa.s; 2) Providing a second component B comprising a polythiourethane prepolymer having thiol (SH) end groups and a viscosity at 25° C. ranging from 0.2 to 2.0 Pa.s; 3) Mixing together first and second components A and B and filling a moulding cavity of a casting mould assembly with the resulting mixture; 4) Curing said mixture to obtain a transparent solid substrate, said curing step comprising: a) a first step for polymerizing said mixture to obtain a gel within 1 to 10 minutes; and b) a second step of post-curing the gel to obtain the transparent solid substrate; and 5) Recovering the transparent solid substrate from the mould.