公开(公告)号：EP0272101A2

公开(公告)日：1988-06-22

申请号：EP87311069.6

申请日：1987-12-16

Applicant: IGEL INTERNATIONAL LIMITED

Inventor： Da Costa, Nicholas Mario

IPC: C08J3/20 ,  G02C7/04 ,  B29D11/00 ,  D06P1/28

CPC classification number: G02B1/043 ,  B29D11/00 ,  C08J7/047 ,  C08J2339/06 ,  C08J2427/04

Abstract: Shaped organic polymer hydrogels, especially contact lenses, are provided with opaque or translucent colouring so as to be capable of masking effectively any underlying colour, e.g. the natural colour of the eye. The hydrogel may be rendered opaque by precipitation in situ of a white or yellow water-insoluble, inorganic or organic material e.g. barium sulphate or an optical brightener and then coloured with a suitable dyestuff.

Abstract translation: 成形的有机聚合物水凝胶，特别是隐形眼镜，具有不透明或半透明着色，以便能够有效掩蔽任何底层颜色，例如， 眼睛的自然色彩。 水凝胶可以通过白色或黄色水不溶性，无机或有机材料原位沉淀而变得不透明。 硫酸钡或荧光增白剂，然后用合适的染料着色。

公开(公告)号：EP0634518A1

公开(公告)日：1995-01-18

申请号：EP94110911.8

申请日：1994-07-13

Applicant: Menicon Co., Ltd.

Inventor： Niwa, Kazuharu, c/o Menicon Co., Ltd ,  Taniyama, Yoshitaka, c/o Menicon Co., Ltd ,  Yokoyama, Yasuhiro, c/o Menicon Co., Ltd ,  Iwata, Noriko, c/o Menicon Co., Ltd

IPC: D06P3/34 ,  G02C7/02 ,  D06P1/28

CPC classification number: D06P1/28 ,  B29D11/00317 ,  C09B5/48 ,  D06P3/343 ,  G02C7/021

Abstract: A process for producing a tinted contact lens, which comprises dissolving a soluble vat dye in a monomer capable of dissolving the soluble vat dye therein, mixing the monomer having the soluble vat dye dissolved therein and other monomers, polymerizing the monomer mixture and processing the resulting polymer into a shape of a contact lens.

Abstract translation: 一种着色隐形眼镜的制造方法，其包括将可溶性瓮染料溶解在能够溶解可溶性瓮染料的单体中，将其中溶解有瓮染料的单体与其它单体混合，使单体混合物聚合并处理所得的 聚合物形成隐形眼镜的形状。

公开(公告)号：EP0288026A2

公开(公告)日：1988-10-26

申请号：EP88106293.9

申请日：1988-04-20

Applicant: HOECHST AKTIENGESELLSCHAFT

Inventor： Bernhardt, Heinrich ,  Blezinger, Hans ,  Weyer, Hans-Jürgen

IPC: D06P1/28

CPC classification number: D06P1/28

Abstract: Bei dem erfindungsgemäßen Verfahren wird das Färbegut mit einer wäßrigen Lösung des Leukoküpenesterfarbstoffs in Gegenwart eines Vanadats geklotzt, dann zur Entwicklung mit einer wäßrigen Flotte, die Schwefelsäure und Peroxomonoschwefelsäure und/oder ein Salz der Peroxomonoschwefelsäure enthält, überklotzt und anschließend verweilen gelassen oder gelagert.
Die Verfahrensweise vermeidet die zur Entwicklung bisher übliche Verwendung von Natriumnitrit.

Abstract translation: 在新型方法中，在钒酸盐存在下，用无色油酯酯染料的水溶液填充纺织材料，然后用含有硫酸和含硫二硫酸和/或含硫酸的盐的含水显影液覆盖， 然后批量或储存。 这个过程避免了迄今为止在开发阶段使用亚硝酸钠。

公开(公告)号：EP0764190B1

公开(公告)日：2001-08-16

申请号：EP95921509.6

申请日：1995-05-26

Applicant: PBH, INC.

Inventor： EVANS, John, M.

IPC: C09B9/00 ,  D06P5/00 ,  D06P3/34 ,  D06P1/28 ,  D06P3/00

CPC classification number: G02B1/043 ,  C09B9/00 ,  D06P1/008 ,  D06P1/28 ,  D06P1/5214 ,  D06P1/5221 ,  D06P1/5228 ,  D06P1/5257 ,  D06P1/928 ,  D06P3/003 ,  D06P3/343 ,  D06P5/00

Abstract: Disclosed are processes for tinting hydrogel materials, such as contact lenses, by dissolving a leuco sulfate ester of a vat dye in a compatible monomer solution, adding an oxidizing initiator to the monomer solution, and oxidizing and polymerizing the monomer solution and dye in the same solution. In one aspect, the oxidation and polymerization are conducted simultaneously whereas in another embodiment, the oxidation of the soluble leuco sulfate ester of a vat dye to the insoluble vat dye and polymerization are conducted sequentially in the same reaction medium.

公开(公告)号：EP0122771B1

公开(公告)日：1989-03-01

申请号：EP84302443.1

申请日：1984-04-10

Applicant: Softint Inc.

Inventor： daCosta, Nicholas M. ,  Press, Miles W. ,  Touch, Alan J.

IPC: G02C7/04 ,  D06P1/28 ,  C08J3/20

CPC classification number: B29D11/00903 ,  G02C7/021 ,  G02C7/046

公开(公告)号：EP0764190A4

公开(公告)日：1998-10-21

申请号：EP95921509

申请日：1995-05-26

Applicant: PILKINGTON BARNES HIND INC

Inventor： EVANS JOHN M

IPC: C09B9/00 ,  D06P1/00 ,  D06P1/28 ,  D06P1/52 ,  D06P1/92 ,  D06P3/00 ,  D06P3/34 ,  D06P5/00 ,  G02B1/04

CPC classification number: G02B1/043 ,  C09B9/00 ,  D06P1/008 ,  D06P1/28 ,  D06P1/5214 ,  D06P1/5221 ,  D06P1/5228 ,  D06P1/5257 ,  D06P1/928 ,  D06P3/003 ,  D06P3/343 ,  D06P5/00

Abstract: Disclosed are processes for tinting hydrogel materials, such as contact lenses, by dissolving a leuco sulfate ester of a vat dye in a compatible monomer solution, adding an oxidizing initiator to the monomer solution, and oxidizing and polymerizing the monomer solution and dye in the same solution. In one aspect, the oxidation and polymerization are conducted simultaneously whereas in another embodiment, the oxidation of the soluble leuco sulfate ester of a vat dye to the insoluble vat dye and polymerization are conducted sequentially in the same reaction medium.

公开(公告)号：EP0272101B1

公开(公告)日：1991-02-20

申请号：EP87311069.6

申请日：1987-12-16

Applicant: IGEL INTERNATIONAL LIMITED

Inventor： Da Costa, Nicholas Mario

IPC: C08J3/20 ,  G02C7/04 ,  B29D11/00 ,  D06P1/28

CPC classification number: G02B1/043 ,  B29D11/00 ,  C08J7/047 ,  C08J2339/06 ,  C08J2427/04

公开(公告)号：EP0272101A3

公开(公告)日：1989-03-08

申请号：EP87311069.6

申请日：1987-12-16

Applicant: IGEL INTERNATIONAL LIMITED

Inventor： Da Costa, Nicholas Mario

IPC: C08J3/20 ,  G02C7/04 ,  B29D11/00 ,  D06P1/28

CPC classification number: G02B1/043 ,  B29D11/00 ,  C08J7/047 ,  C08J2339/06 ,  C08J2427/04

Abstract: Shaped organic polymer hydrogels, especially contact lenses, are provided with opaque or translucent colouring so as to be capable of masking effectively any underlying colour, e.g. the natural colour of the eye. The hydrogel may be rendered opaque by precipitation in situ of a white or yellow water-insoluble, inorganic or organic material e.g. barium sulphate or an optical brightener and then coloured with a suitable dyestuff.

公开(公告)号：EP0634518B1

公开(公告)日：1997-05-21

申请号：EP94110911.8

申请日：1994-07-13

Applicant: Menicon Co., Ltd.

Inventor： Niwa, Kazuharu, c/o Menicon Co., Ltd ,  Taniyama, Yoshitaka, c/o Menicon Co., Ltd ,  Yokoyama, Yasuhiro, c/o Menicon Co., Ltd ,  Iwata, Noriko, c/o Menicon Co., Ltd

IPC: D06P3/34 ,  G02C7/02 ,  D06P1/28

CPC classification number: D06P1/28 ,  B29D11/00317 ,  C09B5/48 ,  D06P3/343 ,  G02C7/021

Abstract: A process for producing a tinted contact lens, which comprises dissolving a soluble vat dye in a monomer capable of dissolving the soluble vat dye therein, mixing the monomer having the soluble vat dye dissolved therein and other monomers, polymerizing the monomer mixture and processing the resulting polymer into a shape of a contact lens.

公开(公告)号：EP0581783B1

公开(公告)日：1996-02-14

申请号：EP92906856.7

申请日：1992-03-23

Applicant: MJS SCIENTIFIC LIMITED

Inventor： Matharu, Tejprakash Singh

IPC: D06P5/00 ,  G02C7/04 ,  D06P3/58 ,  D06P3/34 ,  D06P1/28 ,  D06P1/90

CPC classification number: G02C7/021 ,  D06P1/926 ,  D06P3/343

Abstract: The invention concerns a method of tinting the iris area of a hydrogel soft contact lens (21) to produce a pattern. The area (15) to be tinted is exposed to a vat dye in a predominantly aqueous, liquid, solution through a stencil pattern on a screen (12) so that the dye is absorbed only into the unmasked areas of the lens and the dye is then developed. The screen mask is a flat screen material and during tinting the normally curved lens is adhered to the first side of the screen by surface tension in a flat disposition, with the dye solution applied gently in drops (22) to the other side of the screen, such that the dye is absorbed in a non-solid pattern into the iris area of the lens. The invention is particularly applicable to low (38 % to 50 %) water content lenses.