JP5621117B2 - 多層コンタクトレンズおよびその製造方法 - Google Patents
多層コンタクトレンズおよびその製造方法 Download PDFInfo
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
- B29C43/146—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles
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- 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
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
- B29C39/025—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps for making multilayered articles
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- 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
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/12—Making multilayered or multicoloured articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- 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
- B29D11/00038—Production of contact lenses
- B29D11/00048—Production of contact lenses composed of parts with dissimilar composition
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- 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
- B29D11/00317—Production of lenses with markings or patterns
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- 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
- B29D11/0073—Optical laminates
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- 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
- B29D11/00865—Applying coatings; tinting; colouring
- B29D11/00923—Applying coatings; tinting; colouring on lens surfaces for colouring or tinting
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
- B29C43/146—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles
- B29C2043/147—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles by compressing after the laying of further material
-
- 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
- B29D11/00038—Production of contact lenses
- B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
- B29D11/00192—Demoulding, e.g. separating lenses from mould halves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
- B29K2083/005—LSR, i.e. liquid silicone rubbers, or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0058—Liquid or visquous
- B29K2105/0061—Gel or sol
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0092—Other properties hydrophilic
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- 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
- B29L2009/00—Layered products
-
- 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
- B29L2009/00—Layered products
- B29L2009/005—Layered products coated
-
- 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
- B29L2011/0041—Contact lenses
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
- G02C2202/16—Laminated or compound lenses
Description
以下に幾つかの実施例を示して、本発明をより具体的に明らかにする。
雌型(第1型)に第一重合性組成物(2−ヒドロキシエチルメタクリレート(2−HEMA)59w/w%、グリセロールメタクリレート(GMA)30w/w%、エチレングリコールジメタクリレート(EDMA)0.5w/w%、光重合開始剤として2−ヒドロキシ−2−メチル−1−フェニル−プロパン−1−オン(HMPP)を0.5w/w%、グリセリン(溶媒として添加)10w/w%)を23μl充填した。プラズマ表面処理した雄型(第2型)を嵌合し、窒素雰囲気下で、雌型側から光(365nm、1mW/cm2)を5分間照射して重合した(a工程)。
雌型(第1型)に第一重合性組成物(2−HEMA 99w/w%、EDMA 0.5w/w%、HMPP 0.5w/w%)を23μl充填した。プラズマ表面処理した雄型(第2型)を嵌合し、窒素雰囲気下で、雌型側から光(365nm、1mW/cm2)を5分間照射して重合した(a工程)。
2 第2型
3 第3型
14 第4型
14’ 第5型
5、35 第一半製品
6 第一重合性組成物
7、37 第二重合性組成物
9、9’ 第二重合性組成物の重合体
10、20 重合レンズ
15 第二半製品
15’ 第三重合性組成物の重合体
37’ 余分な第二重合性組成物
Claims (8)
- 多層構造を有するコンタクトレンズを3〜5種の型によって製造する方法であって、
(a)第1型と第2型を組み合わせて形成される空間内に、過剰量の第一重合性組成物を充填し、全ての重合工程を終えた後であって離型直前のコンタクトレンズ(以下、重合レンズという)よりも薄い厚みで、かつ、外径も15〜1000μm小さい第一半製品を重合する工程、
(b)前記第1型と第2型を開く工程、
(c)前記第一半製品が固定された一方の型と第3型とを組み合わせて形成される空間内に、第二重合性組成物を充填し、重合する工程を含み、
前記(b)工程において、第一半製品の型に固定された側の面が、重合レンズの内面または外面のいずれかの表面を形成し、該第一半製品が第1型又は第2型のいずれかに選択的に固定されるように、以下、
(I)(a)工程の前に、型材料と第一半製品との接着力が高い材料を、固定させたい側の型材料として採用し、他方を接着力が低い材料から成形する工程、
(II)(a)工程の前に、第1型と第2型の型材料を同じもので作成し、一方の型表面に処理を施して第一半製品を接着しやすくする、又は離型しやすくする工程、
(III)(b)工程において、常に一方の型に選択的に固定するような型を開く工程、
の前記(I)〜(III)の各工程のうち、少なくとも一つの工程が行われること、
及び第二重合性組成物重合体がエッジを形成することを特徴とする、多層コンタクトレンズの製造方法。 - 前記(I)〜(III)の各工程が、
(I)(a)工程の前に、第一半製品を固定させたい側の型材料を親水性型材料とし、他方を疎水性型材料から選択して、各型を成形する工程、
(II)(a)工程の前に、一方の型表面に、プラズマ、UV照射、コロナ放電、レーザー、或いは界面活性剤を塗布、のいずれかの処理を施して、第一半製品を接着しやすくし、又は離型しやすくする工程、
(III)(b)工程において、温度勾配を持たせて型を開き、熱の低い方に選択的に第一半製品が残るようにする工程、
であることを特徴とする請求項1に記載の多層コンタクトレンズの製造方法。 - 前記(a)工程における第一半製品が、重合レンズの7〜35%の厚みを有することを特徴とする請求項1または2に記載の多層コンタクトレンズの製造方法。
- 前記(c)工程の代わりに、
(e−1)第3型と第4型を組み合わせて形成される空間内に、第三重合性組成物を充填する工程、
(e−2)第三重合性組成物を重合し、重合レンズよりも薄い厚みで、かつ、外径も小さい第二半製品を得る工程、
(e−3)前記第3型と第4型を開く工程、
(c')前記第一半製品が固定された一方の型と、 前記第二半製品が固定された第3型とを組み合わせて形成される空間内に、第二重合性組成物を充填し、重合する工程、
を含む請求項1乃至3のいずれかに記載の多層コンタクトレンズの製造方法。 - 前記(c)工程の代わりに、
(f−1)前記第一半製品が固定された一方の型と第5型とを組み合わせて形成される空間内に、第三重合性組成物を充填する工程、
(f−2)第三重合性組成物を重合し、第一半製品と第三重合性組成物重合体を合わせた二層構造の重合体(以下、第三半製品という)であって、当該第三半製品が(b)工程で第一半製品が固定された型側に固定された状態で、その厚みが重合レンズよりも薄くかつ外径も小さい第三半製品を得る工程、
(c'')前記第三半製品が固定された型と第3型とを組み合わせて形成される空間内に、第二重合性組成物を充填し、重合する工程、
を含む請求項1乃至3のいずれかに記載の多層コンタクトレンズの製造方法。 - 前記第一半製品、第二半製品、第三半製品のいずれの外径も、重合レンズより15〜1000μm小さいことを特徴とする請求項1乃至5のいずれかに記載の多層コンタクトレンズの製造方法。
- (d)前記第一半製品、第二半製品、第三半製品の少なくともひとつの、型に固定されていない側の半製品の表面に着色成分を塗布する工程、
を含むことを特徴とする請求項1乃至6のいずれかに記載の多層コンタクトレンズの製造方法。 - 前記請求項1乃至7のいずれかに記載の製造方法によって製造された多層構造を有するコンタクトレンズ。
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JP2012137562 | 2012-06-19 | ||
JP2012137562 | 2012-06-19 | ||
PCT/JP2013/066635 WO2013191148A1 (ja) | 2012-06-19 | 2013-06-17 | 多層コンタクトレンズおよびその製造方法 |
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JP5621117B2 true JP5621117B2 (ja) | 2014-11-05 |
JPWO2013191148A1 JPWO2013191148A1 (ja) | 2016-05-26 |
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US (1) | US9878473B2 (ja) |
JP (1) | JP5621117B2 (ja) |
WO (1) | WO2013191148A1 (ja) |
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JP2014006432A (ja) * | 2012-06-26 | 2014-01-16 | Hikoyuki Konno | 矯正コンタクトレンズの製造方法及び老眼矯正コンタクトレンズ |
KR102306300B1 (ko) * | 2020-05-11 | 2021-09-29 | 주식회사 아이씨케이 | 콘택트렌즈 몰드와 이를 이용한 콘택트렌즈 제조방법 |
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SG10201400920RA (en) | 2014-03-24 | 2015-10-29 | Menicon Singapore Pte Ltd | Apparatus and methods for controlling axial growth with an ocular lens |
CN107003541B (zh) | 2014-10-08 | 2020-11-17 | 印诺维嘉有限公司 | 接触镜和用于构造接触镜的方法和系统 |
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JP6993361B2 (ja) * | 2016-03-11 | 2022-02-03 | イノベーガ,インコーポレイテッド | コンタクトレンズ |
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EP4240578A1 (en) | 2020-11-04 | 2023-09-13 | Alcon Inc. | Method for making photochromic contact lenses |
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TWI817375B (zh) * | 2021-03-08 | 2023-10-01 | 瑞士商愛爾康公司 | 用於生產水凝膠接觸鏡片之方法及由其獲得之水凝膠接觸鏡片 |
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JP2014006432A (ja) * | 2012-06-26 | 2014-01-16 | Hikoyuki Konno | 矯正コンタクトレンズの製造方法及び老眼矯正コンタクトレンズ |
KR102306300B1 (ko) * | 2020-05-11 | 2021-09-29 | 주식회사 아이씨케이 | 콘택트렌즈 몰드와 이를 이용한 콘택트렌즈 제조방법 |
Also Published As
Publication number | Publication date |
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US9878473B2 (en) | 2018-01-30 |
JPWO2013191148A1 (ja) | 2016-05-26 |
US20150137397A1 (en) | 2015-05-21 |
WO2013191148A1 (ja) | 2013-12-27 |
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