JP6336387B2 - 改善された耐久性を有する、界面活性剤をベースとする一時的な防曇コーティングを含んでなる光学物品 - Google Patents
改善された耐久性を有する、界面活性剤をベースとする一時的な防曇コーティングを含んでなる光学物品 Download PDFInfo
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- JP6336387B2 JP6336387B2 JP2014520585A JP2014520585A JP6336387B2 JP 6336387 B2 JP6336387 B2 JP 6336387B2 JP 2014520585 A JP2014520585 A JP 2014520585A JP 2014520585 A JP2014520585 A JP 2014520585A JP 6336387 B2 JP6336387 B2 JP 6336387B2
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- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/18—Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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Description
− 80個未満の炭素原子を含んでなるポリオキシアルキレン基と、
− 少なくとも1個の加水分解性基を有する少なくとも1個のケイ素原子と
を有する、少なくとも1種のオルガノシラン化合物のグラフト化によって得られ、
− 5nm以下の厚さを有し、
− 10°より大きく、そして50°未満の水に対する静的接触角を有する。
− 少なくとも1種のオルガノシラン化合物であって
○ ポリオキシアルキレン基と、
○ 少なくとも1個の加水分解性基を有する少なくとも1個のケイ素原子と
を有する、少なくとも1種のオルガノシラン化合物のグラフト化によって得られ、
− 好ましくは5nm以下の厚さを有し、
− 好ましくは10°より大きく、そして50°未満の水に対する静的接触角を有し、
そして上記で定義されたような組成物、好ましくは界面活性剤液体溶液を適用し、そして好ましくは10°以下、より好ましくは5°以下の水に対する静的接触角を有する防曇コーティングを形成することによって得られるフィルムによってさらにコーティングされることを特徴とする、光学物品、好ましくは眼鏡用レンズに関する。
R1YmSi(X)3−m (I)
(式中、Y基は、同一であるか、又は異なって、炭素原子を介してケイ素原子に結合した一価の有機基であり、X基は、同一であるか、又は異なって、加水分解性基であり、R1は、ポリオキシアルキレン官能基を含んでなる基であり、そしてmは0、1又は2に等しい整数である)の化合物である。好ましくはm=0である。
Ym(X)3−mSi(CH2)n’−(L’)m’−(OR)n−O−(L’’)m’’−R’ (II)
(式中、R’は、水素原子、直鎖又は分枝状の、1個又は複数個の官能基によって任意に置換され、そして1個又は複数個の二重結合をさらに含んでもよいアシル基又はアルキル基であり、Rは、直鎖又は分枝状アルキル基、好ましくは直鎖アルキル基、例えば、エチレン又はプロピレン基であり、L’及びL’’は二価基であり、X、Y及びmは上記で定義されたとおりであり、n’は1〜10、好ましくは1〜5の整数であり、nは2〜50、好ましくは5〜30、より好ましくは5〜15の整数であり、m’は0又は1、好ましくは0であり、m’’は0又は1、好ましくは0である)の化合物である。
シリカは、Optron Inc.companyによって供給される顆粒の形態で使用される。防曇コーティング前駆体を形成するために実施例で使用されるオルガノシラン化合物は、6〜9個のエチレンオキシド単位及び450〜600g/molの分子量を有する、式(III)の2−[メトキシ(ポリエチレンオキシ)プロピル]トリメトキシシランである(CAS番号:65994−07−2、参照:SIM 6492.7、Gelest,Inc.companyから供給)。
実施例において、堆積は、ジュール効果熱供給源を使用する真空蒸発によってレンズの反射防止コーティングY上に実行する。
3.1界面活性剤溶液の調製
2種の異なる界面活性剤を使用した。
2で調製された防曇コーティング前駆体コーティングが提供されたレンズを、3.1に記載される溶液によって処理した。
全ての蒸気試験は、10レンズ−パネル、5組(又は対)のレンズ上で実行され、各組は、本発明による1つのレンズ(6重量%のCapstone(登録商標)FS 3100溶液で処理されたレンズ)及び1つの比較レンズ(6重量%のZonyl(登録商標)FSO 100溶液で処理されたレンズ)を含んでなった。
0.曇りがない、視覚歪みがない(視力=10/10)
1.視力>6/10を可能にする曇り及び/又は視覚歪み
2.視力<6/10を可能にする曇り及び/又は視覚歪み
これらの試験は、透明な光学物品の防曇性能を決定するためのシステムを使用して実行された。このシステムについては、2011年5月4日出願のフランス特許出願公開第11.53814号明細書に完全に記載されており、そして上記特許出願の図1に相当し、(20)の符号が付けられている。
この試験では、2で調製された防曇コーティング前駆体コーティングが提供され、そして3.1に記載される溶液によって(又は市販のDefog it(商標)溶液によって)3.2に記載されるようにさらに処理されたレンズを「冬の条件」(4℃、湿度40%)で60分間貯蔵し、次いで、通常の条件(20℃、湿度50%)を迅速に受けさせた。結果を以下に示す(表2)。
この試験では、2で調製された防曇コーティング前駆体コーティングが提供され、そして3.1に記載される溶液によって(又は市販のDefog it(商標)溶液によって)さらに処理されたレンズを通常の条件(20℃、湿度45%)で30分間貯蔵し、次いで、「熱帯条件」(30℃、湿度70%)を迅速に受けさせた。結果を以下に示す。
この試験によって、レンズの表面上への一時的な防曇溶液の拭き取りに対する抵抗を評価することが可能である。これは、いくつかの対のレンズ(2つのレンズ)において実行された。一般的な試験プロトコルは、国際公開第2011/080472号パンフレットの実験項の5章に記載される。
A:均一な水のフィルム(視力10/10)
B:着用者によって容認できると考えられる視覚歪み
C:着用者によって容認できないと考えられる視覚歪み(不均一な水のフィルム)
D:完全に拡散した白色の曇り、微細な水滴。
レンズG1は、6章に定義された請求項1に従うレンズである。レンズG3は、Seikoから市販される防曇眼鏡レンズであり、1.6の屈折率を有する基材及び防曇コーティングの前駆体コーティングを含んでなる。レンズG4は、Tokaiから市販される防曇眼鏡レンズであり、1.6の屈折率を有する基材及び防曇コーティングの前駆体コーティングを含んでなる。
Claims (17)
- 第1のコーティングと、この第1のコーティングと直接接触する防曇コーティングの前駆体コーティングとによってコーティングされた少なくとも1つの主表面を有する基材を含んでなる光学物品において、前記防曇コーティングの前記コーティング前駆体が、
少なくとも1種のオルガノシラン化合物であって、
80個未満の炭素原子を含んでなるポリオキシアルキレン基と、
少なくとも1個の加水分解性基を有する少なくとも1個のケイ素原子と
を有する、少なくとも1種のオルガノシラン化合物がグラフト化したものであることと、
前記前駆体コーティングが、式F(CF2)y−(CH2−CH2O)x+1H(VIII)(式中、xは1〜14の範囲の整数であり、yは10以下の整数であり、y=6である式(VIII)の化合物が、組成物に存在する前記化合物(VIII)の重量に対して、少なくとも90重量%の量で存在する)の少なくとも1種の界面活性剤を含有する界面活性剤含有組成物のフィルムでコートされており、界面活性剤含有組成物のフィルムでコートされた前記前駆体コーティングが、10°以下の水に対する静的接触角を有する防曇コーティングをなしていること、とを特徴とする、光学物品。 - 前記ポリオキシアルキレン基が40個未満の炭素原子を含んでなる、請求項1に記載の光学物品。
- 前記防曇コーティングが5°以下の水に対する静的接触角を有する、請求項1または2に記載の光学物品。
- 前記式(VIII)の化合物が、組成物に存在する前記化合物(VIII)の重量に対して、少なくとも95重量%の量で存在する請求項1〜3のいずれか一項に記載の光学物品。
- 前記界面活性剤含有組成物が液体溶液である請求項1〜4のいずれか一項に記載の光学物品。
- xが1〜4の範囲である前記式(VIII)の化合物が、前記界面活性剤含有組成物に存在する化合物(VIII)の重量に対して、少なくとも50重量%の量で存在する、請求項1〜5のいずれか一項に記載の光学物品。
- 前記界面活性剤含有組成物が、前記組成物の重量に対して、0.5〜15重量%の式(VIII)の界面活性剤を含んでなる、請求項1〜6のいずれか一項に記載の光学物品。
- yが6より大きい前記式(VIII)の化合物が、前記界面活性剤含有組成物に存在する化合物(VIII)の重量に対して、5重量%未満の量で存在する、請求項1〜7のいずれか一項に記載の光学物品。
- 前記第1のコーティングが、その表面にシラノール基を含んでなる、請求項1〜8のいずれか一項に記載の光学物品。
- 前記第1のコーティングが、反射防止コーティング、耐摩耗性コーティング、又は耐摩耗性コーティング上へ堆積されたシリカをベースとする層である、請求項1〜9のいずれか一項に記載の光学物品。
- 前記防曇コーティングの前記コーティング前駆体が5nm以下の厚さを有する、請求項1〜10のいずれか一項に記載の光学物品。
- 前記防曇コーティングの前記コーティング前駆体が、10°より大きく、かつ50°未満の水に対する静的接触角を有する、請求項1〜11のいずれか一項に記載の光学物品。
- 前記オルガノシラン化合物が、次式:
R 1 Y m Si(X) 3-m (I)
(式中、前記Y基は、同一であるか、又は異なって、炭素原子を介して前記ケイ素原子に結合した一価の有機基であり、前記X基は、同一であるか、又は異なって、加水分解性基であり、R 1 は、ポリオキシアルキレン官能基を含んでなる基であり、そしてmは0、1又は2に等しい整数である)の化合物である、請求項1〜12のいずれか一項に記載の光学物品。 - 眼用レンズとしてさらに定義される、請求項1〜13のいずれか一項に記載の光学物品。
- 少なくとも1つの主表面を有する光学的物品に防曇特性を与える方法であって、
前記光学的物品が、防曇コーティングの前駆体コーティングによってコーティングされた少なくとも1つの主表面を有する基材を含んでなり、前記防曇コーティングの前記コーティング前駆体が、
80個未満の炭素原子を含んでなるポリオキシアルキレン基と、
少なくとも1個の加水分解性基を有する少なくとも1個のケイ素原子と
を有する、少なくとも1種のオルガノシラン化合物のグラフト化によって得られる、
請求項1〜8のいずれか一項に定義される界面活性剤含有組成物の前記主表面上への塗布を含んでなる方法。 - 前記主表面上での前記適用が、不織ティッシュであってその構造が親水性ポリマー及び疎水性ポリマーを含んでなり、前記界面活性剤含有組成物によって含浸された不織ティッシュによって前記主表面を拭き取る工程を含んでなる、請求項15に記載の方法。
- 前記主表面上での前記適用が、ポリエステル単位及びポリアミド単位を含んでなるポリマーから製造されたマイクロファイバーを含んでなるマイクロファイバーティッシュの前記界面活性剤含有組成物による含浸、それに続く、前記マイクロファイバーティッシュの乾燥によって得られた乾燥マイクロファイバーティッシュによって前記主表面を拭き取る工程を含んでなる、請求項15に記載の方法。
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