WO2003035356A1 - Procede de production d'un produit de lentille moulee et detergent - Google Patents

Procede de production d'un produit de lentille moulee et detergent Download PDF

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Publication number
WO2003035356A1
WO2003035356A1 PCT/JP2002/010931 JP0210931W WO03035356A1 WO 2003035356 A1 WO2003035356 A1 WO 2003035356A1 JP 0210931 W JP0210931 W JP 0210931W WO 03035356 A1 WO03035356 A1 WO 03035356A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
lens
mold
ether
detergent
Prior art date
Application number
PCT/JP2002/010931
Other languages
English (en)
Japanese (ja)
Inventor
Akiko Shimizu
Original Assignee
Hoya Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoya Corporation filed Critical Hoya Corporation
Publication of WO2003035356A1 publication Critical patent/WO2003035356A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • B29D11/00528—Consisting of two mould halves joined by an annular gasket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006—Monomers or prepolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/263—Ethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
    • B29C2071/0045—Washing using non-reactive liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Definitions

  • the present invention relates to a method for producing a plastic lens for diethylene glycol bisaryl carbonate (hereinafter sometimes abbreviated as DAC) based spectacles, and a cleaning agent for a plastic lens or a plastic lens mold.
  • DAC diethylene glycol bisaryl carbonate
  • the present invention relates to a plastic lens molded product (here, for example, one in which a gasket is removed after polymerization and a lens is sandwiched between glass molds) and a plastic lens molding die (for example, glass Detergent for cleaning high-molecular-weight resinous dirt and the like, such as raw materials for plastic molding, unreacted monomers, oligomers, polymers, and pre-installed components from gaskets, which adhere to the mold), and plastic lenses using the same. And a method for producing the same.
  • a plastic lens molded product here, for example, one in which a gasket is removed after polymerization and a lens is sandwiched between glass molds
  • a plastic lens molding die for example, glass Detergent for cleaning high-molecular-weight resinous dirt and the like, such as raw materials for plastic molding, unreacted monomers, oligomers, polymers, and pre-installed components from gaskets, which adhere to the mold
  • the resin most commonly used as a plastic lens for eyeglasses is a resin containing mainly ethylene glycol bisaryl carbonate (hereinafter referred to as DAC), and is generally formed by a casting polymerization method. is there.
  • DAC ethylene glycol bisaryl carbonate
  • a resin monomer is injected into the cavity of a molding die composed of a glass molding die and a gasket, and the temperature is controlled by an electric furnace or the like, and polymerization is performed. After the polymerization, the gasket is removed, and the molded lens is peeled off from the mold. Since the DAC is anaerobic during this release operation, it may adhere or leak during the injection operation. Unreacted monomer on the outside of the mold can stick to hands and jump off, hindering work.
  • the molded product after polymerization contains unreacted monomers, oligomers, polymers, components bleed-out from gaskets, and many other plastic molding materials. Therefore, in order to remove these components from the molded lens and the mold, for example, a cleaning operation before the release process using a cleaning liquid using a chlorine-based organic solvent such as trichloroethylene or a surfactant is generally performed. I have been. However, since the above-mentioned trichlorethylene is a harmful substance, it is required to switch to a substitute for environmental issues and occupational health and safety. In addition, since the washing step containing a surfactant requires a rinsing step with water or the like, there is a concern that the wastewater may affect the environment.
  • a cleaning liquid using a chlorine-based organic solvent such as trichloroethylene or a surfactant
  • an object of the present invention is to provide a method of manufacturing a plastic lens using the above-mentioned cleaning agent in place of these cleaning agents and a cleaning method using the cleaning agent.
  • the present invention for solving the above problems is as follows.
  • a diethylene glycol bisaryl carbonate-based lens monomer is injected into a cavity of a lens ⁇ in which a sealing material and a mold are incorporated, and after casting polymerization, the sealing material is removed.
  • the molded product is combined with the mold A method for producing a lens molded product, wherein both are washed with a detergent containing glycol ether and water.
  • the cleaning of the lens molded article and the mold is performed in the same manner as the first cleaning step of cleaning the lens molded article and the mold with a cleaning liquid containing glycol ether and water, and the same cleaning liquid used in the first cleaning step.
  • distillation regeneration device includes a moisture adjusting device.
  • a cleaning agent for plastic lenses or plastic lens molds which contains dalicol ether and water.
  • FIG. 1 is an explanatory view of a lens molding process.
  • FIG. 2 is an explanatory diagram of a cleaning device. BEST MODE FOR CARRYING OUT THE INVENTION
  • the diethylene glycol bisaryl carbonate-based lens (DAC-based lens) produced in the present invention is a lens known as a DAC-based lens, and its composition is not particularly limited.
  • DAC lenses contain 20 to 100% DAC as a monomer component, and other components such as diaryl phthalate, styrene, and methyl methacrylate, a polymerization initiator, an ultraviolet absorber, etc. It is obtained by polymerizing the obtained monomer solution.
  • glass is often used as a mold used as a mold, but the material is not particularly limited, and metal, ceramic, and the like may be used.
  • the sealing material is not particularly limited, but a resin gasket may be used. Or a tape type is generally used.
  • the method and conditions of the cast polymerization of the DAC lens are not particularly limited. Known methods and conditions can be used as they are.
  • the sealing material is removed after the casting polymerization, and the lens molded product is washed together with the mold.
  • the cleaning agent used in the production method of the present invention and the cleaning agent of the present invention contain glycol ether and water.
  • the glycol ether preferably has a molecular weight of 50 to 50, and is preferably selected from daricol ether having a boiling range of 50 to 300 ° C.
  • a glycol ether having a molecular weight and a boiling point in this range since a rinsing step with another detergent (other organic solvent, water, or the like) is not required as an additional step after washing.
  • Another detergent other organic solvent, water, or the like
  • the following compounds can be mentioned as the daricol ether containing a glycol ether having such a molecular weight and a boiling point. (All boiling points below are at normal pressure (760 mmHg).)
  • Diethylene glycol monomethyl ether (molecular weight 120.15, boiling point 194.1 ° C), diethylene dalicol monoethyl ether (molecular weight 134.17, boiling point 202.0 ° C), diethylene glycol monobutynole ether (molecular weight 162.23, boiling point) 230. 4 ° C), triethylene dalicol (molecular weight 150.17, boiling point 288.0 ° C),
  • Triethylene glycol monomethyl ether (molecular weight 164.21, boiling point 249 ° C), tetraethylene glycol (molecular weight 194.23, boiling point 327.3 ° C),
  • Polyethylene glycol (molecular weight 150-800, boiling point 50-300 ° C),
  • Dipropylene dalicol monomethyl ether (molecular weight 148.20, boiling point 190 ° C), dipropylene dalicol monoethyl ether (molecular weight 162.22, boiling point 197.8.C :), tripropylene glycol monomethyl ether (molecular weight 206 ⁇ 28, boiling point 243 ° C), polypropylene glycol (molecular weight 400-500, boiling point 50-300 ° C)
  • Dipropylene glycol methyl ether (Mw 148.2, boiling point 188.3 ° C) Tripropylene dalicol methyl ether (Molecular weight 206.3, Boiling point 242.4 ° C) 2, boiling point 146 ° C) Ethylene glycol ether ether acetate (molecular weight 132.2, boiling point 156.3 ° C) Propylene glycol ethyl ether acetate (molecular weight 146.2, boiling point 158 ° C) 3-Methyl-3-methoxybutyl Acetate (molecular weight ⁇ .2, boiling point 188 ° C) 1,2-diethoxyxetane (molecular weight 118.17, boiling point 121.4 ° C)
  • 1,2-butoxetane (molecular weight 174.28, boiling point 203.3 ° C)
  • Ethylene glycol monomonoethyl ether acetate (molecular weight 132.2, boiling point 156.3.C)
  • Ethylene glycol / lemonoptinoleate oleate (molecular weight 160.2, boiling point 192 ° C)
  • Ethylene glycol monohexyl ether (molecular weight 146.3, boiling point 208.3 ° C)
  • Ethylene glycol / lemonomethyi / le-teracetate (molecular weight 118.2, boiling point 145 ° C)
  • the detergent used in the production method of the present invention and the detergent of the present invention preferably have a dalicol ether content of 30% by weight or more, more preferably 50% by weight to 95% by weight. is there. Further, the above-mentioned detergent contains water in addition to glycol ether. The reason for this is that glycol ethers have a flash point, which reduces the risk of flammable work. Therefore, when the water content is 70% by weight or more, the detergency decreases.
  • the detergent may include one or more dalicol ethers.
  • the cleaning of the lens molded article and the mold with the above-mentioned cleaning agent is preferably performed in combination with, for example, ultrasonic irradiation, since a high cleaning effect can be obtained, and thus it is preferable.
  • the temperature of the casting polymerization is generally 50 to 150 ° C, the rapid temperature change is suppressed, and particularly at an inappropriate time due to the difference in the shrinkage ratio between the lens molded product and the mold.
  • the lens molded product and the mold are cleaned by a first cleaning step of cleaning the lens molded product and the mold with a cleaning liquid containing glycol ether and water; and the same glycol ether as the cleaning liquid used in the first cleaning step.
  • the method comprises a second cleaning step of rinsing with a cleaning liquid containing: a drying step of drying the washed lens molded product and the mold.
  • a cleaning liquid containing: a drying step of drying the washed lens molded product and the mold.
  • FIG. 2 is an explanatory diagram of the cleaning device.
  • This washing device is composed of a washing tank 1 made of stainless steel, a lifting tank 2 and a drying tank 3.
  • the first cleaning step is performed in the cleaning tank 1
  • the second cleaning step is performed in the lifting tank 2
  • the drying step is performed in the drying tank 3.
  • the cleaning tank 1 contains the cleaning agent (cleaning liquid) of the present invention, and is provided with an ultrasonic device 11 for the purpose of enhancing the cleaning effect. Further, the temperature is controlled by a heater (not shown). I have.
  • the lifting tank 2 is composed of a first tank 21 and a second tank 22 whose temperature is controlled by a heater 23, and is filled with a cleaning liquid containing the same glycol ether as the cleaning liquid as a rinsing liquid.
  • the liquid that has overflowed in the second tank 22 moves to the first tank 21, and the liquid that overflows in the first tank 21 moves to the cleaning tank 1.
  • a circulation mechanism 24 for pumping liquid from the first tank 21 to the second tank 22 through a filter is provided between the first tank 21 and the second tank 22, and a circulation mechanism 24 is provided.
  • the rinsing liquid is circulated and supplied from the first tank 21 to the second tank 22.
  • the washing liquid is supplied from the second tank 22 to the first tank 21 by an overflow above the tank, so that the rinsing liquid always flows between the first tank 21 and the second tank 22. It is circulating.
  • the drying tank 3 dries the molded product and the mold that have been sent into the tank by hot air supply means including a heater 31 and an air blow device 32 with hot air.
  • the transfer of the lens molded product and the mold to each of these tanks is performed by moving the rack holding the lens molded product and the mold up and down, back and forth, thereby moving the rack up and down in the tank and moving the rack up and down. It can be moved forward to the tank to feed the rack holding the molded product and the mold.
  • a part of the cleaning liquid in the first cleaning step is extracted, glycol ether is regenerated from the extracted liquid, and the glycol ether can be supplied to the first cleaning step or the second cleaning step. .
  • an apparatus provided with the cleaning liquid regeneration processing apparatus 4 shown in FIG. 2 can be used.
  • a distillation regeneration apparatus is used to recover glycol ether.
  • the regenerating apparatus 4 includes a storage tank 41 and a distillation / regenerating apparatus 42, and the storage tank 41 includes a stock solution tank 43 and a regenerating solution tank 44.
  • the stock solution tank 43 is a tank for temporarily storing the washing liquid ⁇ overflowed from the washing tank 1, and stores it here, and sends it to the distillation regeneration device 43 through a pipe ⁇ as appropriate.
  • a regenerating solution tank 44 is also provided in the stock solution tank 43, and the regenerating solution can overflow from the regenerating solution tank 44 to the stock solution tank 43, so that the liquid level of the regenerating solution tank 44 can be controlled. It has become.
  • the regenerating solution tank 44 stores the regenerating solution regenerated by the distillation regenerator 42, When the production is completed, it is sent to the regenerating solution tank 44 at any time through the pipe 3.
  • the temperature of the stock solution tank 43 and the regenerating solution tank 44 is controlled by a heater, preferably at about 80 ° C.
  • the distillation regeneration device 44 of this embodiment is for distilling the washing liquid under reduced pressure. Glycol ether and water are recovered by distillation, and those not distilled are discharged as waste liquid. Distillation is preferably performed at a normal pressure or lower, more preferably at a reduced pressure of 100 Hg or lower.In this embodiment, the reduced pressure is 40 mmHg or lower, and the distillation is carried out at 50 to 200 ° C.
  • distillation can be performed at a lower temperature, and when the degree of vacuum is low, a higher liquid temperature is required. Of course, it can be carried out under normal pressure.
  • an oil-water separation system or a distillation regeneration system is used to regenerate the above-mentioned detergent.
  • the oil-water separation method uses the difference in the affinity and specific gravity between the waste and the cleaning solution.However, it is difficult to remove 100% of the waste, and if the waste is completely dissolved in the cleaning solution, Cannot be separated.
  • the DAC used in the present invention is almost completely dissolved in a mixed solution of glycol ether and water.
  • the distillation regeneration method is a method utilizing the boiling point difference between the washing liquid and the waste, and cannot be used when the boiling point difference between the washing liquid and the waste is small or when the boiling point of the waste is lower. If the boiling point difference is large, it can be completely separated It is possible.
  • a pressure reduction method is used for the distillation regeneration.
  • the boiling point of DAC which is a raw material of the lens molded product produced in the present invention, is 166 ° C. at 2 mmHg, and the boiling point difference from glycol ether is large, so that a distillation regeneration method can be used.
  • the washing liquid components are distilled and can be reused, and the waste liquid remains as a residue in the still and is discharged as waste liquid.
  • a waste liquid tank in front of the distillation and regeneration unit, it is possible to balance the supply of liquid to the distillation and regeneration unit.
  • the evaporation amount of the liquid from the cleaning tank can be compensated for, and it can be used for a long time without liquid replenishment. Since the boiling point of water is different from that of dalicol ether, which is a cleaning component, it is effective to install a water content adjustment tank for the distillate.
  • this water adjustment tank not only serves to balance the water content, but also plays a role in adjusting the unevenness of the amount of the distilled regenerated liquid with time.
  • the moisture content of the regenerating solution is controlled by a moisture meter 45, and is controlled so as not to fall below a certain moisture content. It is a component of the cleaning solution In order to prevent the danger of flammability of coal ether, it is preferable as a practical measure as a safety measure in mass production factories of lenses.
  • the regeneration liquid ⁇ is sent from the regeneration tank 44 to the lifting tank 2 and replenished. The replenishment is controlled by a flow meter using a valve. Then, the regenerating liquid overflows from the lifting tank 2 and is supplied to the cleaning tank 1, and a circulation cycle of the cleaning liquid is formed.
  • lens molding will be described with reference to FIG.
  • FIG. 1 (a) is a view for explaining the formation of a mold in a casting method of plastic lenses for spectacles
  • FIG. 1 (b) is a sectional view of the mold
  • () is a sectional view of a molded product.
  • DAC 100 parts by weight of DAC, 3 parts by weight of diisopropylpropylperoxydicarbonate, 30 parts by weight of polyester-modified surfactant (vs. MC) and 2-hydroxy 4-n-otoxybenzophenone as UV absorber 0.
  • vs. MC polyester-modified surfactant
  • 2-hydroxy 4-n-otoxybenzophenone as UV absorber 0.
  • the molded product 56 was packed in a stainless steel holding rack of an ultrasonic cleaning device, and set in a transport mechanism of the cleaning device shown in FIG.
  • a cleaning agent As a cleaning agent, a mixed solution of 80 parts by weight of 3-methoxy-3-methyl-1-butanol and 20 parts by weight of water was used.
  • the molded article 55 is placed on the holding rack, immersed in the cleaning tank, and irradiated with ultrasonic waves while being swung up and down to be cleaned for 5 seconds to 10 minutes.
  • the temperature of the cleaning tank is 80 ° C.
  • the lifting tank contains a rinsing liquid composed of the same components as the cleaning tank, and the rack is lowered, immersed, and moved up and down for 5 to 10 minutes in this lifting tank. Done.
  • this rack is lifted from the lifting tank, and is moved to the next drying tank by the transport means.
  • the rack In the drying tank, the rack is lowered, and hot air heated by a heater is blown by air to dry the molded product.
  • the rack is lifted from the drying tank, the rack is transferred from the cleaning device, and the molded product is taken out.
  • the cleaning effect was evaluated by visual observation under a fluorescent lamp. As a result, it was confirmed that the cleaning was successfully performed. Then, a release process, the lens molded article 5 5 been come released from the glass mold 51, 52, a lens was obtained. ADVANTAGE OF THE INVENTION According to the manufacturing method and cleaning agent of this invention, compared with the case where the conventionally used cleaning using trichloroethylene or surfactant is used, the burden on the environment is reduced and good cleaning properties are maintained. Can be done. In addition, an excellent effect of high safety to the human body at the time of washing is exhibited.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Medicine (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Eyeglasses (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention concerne un procédé de production d'un produit de lentille moulée qui consiste à injecter un mélange de monomères à base de diéthylène glycol bis-allyle carbonate, pour former une lentille, dans la cavité d'un moule à lentille composé d'un élément d'étanchéité (53) et d'une matrice de moulage (54). On laisse ensuite le mélange de monomères subir une polymérisation par coulage, on enlève l'élément d'étanchéité (53) et on nettoie le produit (55) de lentille moulée, ainsi que la matrice de moulage (54) avec un détergent comprenant un éther glycolique et de l'eau. Cette invention concerne également un détergent destiné à une lentille en plastique ou à une matrice de moulage pour lentille en plastique, ce détergent comprenant de l'éther glycolique et de l'eau. Ce détergent est un nouveau détergent destiné à être utilisé dans la production d'une lentille moulée en plastique et se distingue avantageusement par rapport à un détergent classique, en ce qu'il respecte l'environnement.
PCT/JP2002/010931 2001-10-25 2002-10-22 Procede de production d'un produit de lentille moulee et detergent WO2003035356A1 (fr)

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JP2001-328134 2001-10-25
JP2001328134A JP2003131174A (ja) 2001-10-25 2001-10-25 レンズ成形品の製造方法及び洗浄剤

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2011073330A1 (fr) * 2009-12-17 2011-06-23 Novartis Ag Procédé permettant de séparer l'excédent de matériau de formage d'une lentille ophtalmique moulée, en particulier une lentille de contact

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Publication number Priority date Publication date Assignee Title
JP4832825B2 (ja) * 2005-07-25 2011-12-07 株式会社トクヤマ プラスチックレンズの製造方法

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JPH03162496A (ja) * 1989-11-21 1991-07-12 Kao Corp 洗浄剤組成物
JPH04270799A (ja) * 1991-02-25 1992-09-28 Arakawa Chem Ind Co Ltd 非ハロゲン系の工業用脱脂洗浄剤及び該洗浄剤を用いてなる物品の洗浄処理方法
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JPH08224740A (ja) * 1995-02-22 1996-09-03 Dai Ichi Kogyo Seiyaku Co Ltd ガラスモールド用洗浄剤
JPH08245988A (ja) * 1995-03-10 1996-09-24 Toho Chem Ind Co Ltd 洗浄剤組成物
JPH0987668A (ja) * 1995-09-27 1997-03-31 Dai Ichi Kogyo Seiyaku Co Ltd 洗浄剤組成物、及びこれの再処理方法
JPH09263792A (ja) * 1996-03-27 1997-10-07 Kao Corp 樹脂汚れ用洗浄剤組成物及び洗浄方法
JP2000102932A (ja) * 1998-09-28 2000-04-11 Seiko Epson Corp ガラス型の洗浄方法
JP2001181688A (ja) * 1999-12-27 2001-07-03 Nippon Cb Chemical Kk 洗浄剤

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073330A1 (fr) * 2009-12-17 2011-06-23 Novartis Ag Procédé permettant de séparer l'excédent de matériau de formage d'une lentille ophtalmique moulée, en particulier une lentille de contact
CN102712148A (zh) * 2009-12-17 2012-10-03 诺瓦提斯公司 从模制的眼镜镜片、特别是从隐形眼镜分离过量的镜片成型材料的方法
US8673187B2 (en) 2009-12-17 2014-03-18 Novartis Ag Method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens
CN102712148B (zh) * 2009-12-17 2015-07-15 诺华股份有限公司 从模制的眼镜镜片、特别是从隐形眼镜分离过量的镜片成型材料的方法
US9914272B2 (en) 2009-12-17 2018-03-13 Novartis Ag Method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens

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