JPH0790241A - Temporary adhesive for eye lens material - Google Patents
Temporary adhesive for eye lens materialInfo
- Publication number
- JPH0790241A JPH0790241A JP23625893A JP23625893A JPH0790241A JP H0790241 A JPH0790241 A JP H0790241A JP 23625893 A JP23625893 A JP 23625893A JP 23625893 A JP23625893 A JP 23625893A JP H0790241 A JPH0790241 A JP H0790241A
- Authority
- JP
- Japan
- Prior art keywords
- lens material
- temporary adhesive
- ophthalmic lens
- adhesive
- polyethylene glycol
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 77
- 239000000463 material Substances 0.000 title claims abstract description 77
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 76
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 28
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 abstract description 24
- 230000008018 melting Effects 0.000 abstract description 24
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 23
- 239000000843 powder Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Eyeglasses (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は眼用レンズ材料用仮接着
剤に関する。さらに詳しくは、溶融温度がそれほど上昇
することがなく、高接着強度を呈し、常温硬化型であ
り、さらに親水性にもすぐれ、切削加工の際の眼用レン
ズ材料と切削加工装置に材料を設置するための支持体と
の仮接着に好適に使用しうる眼用レンズ材料用仮接着剤
に関する。FIELD OF THE INVENTION The present invention relates to a temporary adhesive for ophthalmic lens materials. More specifically, the melting temperature does not rise so much, it exhibits high adhesive strength, it is a room temperature curing type, it is also excellent in hydrophilicity, and the material is installed in the eye lens material for cutting and cutting equipment. The present invention relates to a temporary adhesive for an ophthalmic lens material, which can be preferably used for temporary adhesion with a support.
【０００２】[0002]
【従来の技術】従来、眼用レンズ材料をコンタクトレン
ズや眼内レンズなどの形状に切削加工する際に、該眼用
レンズ材料と切削加工装置に材料を設置するための支持
体とを仮接着させる方法としては、ポリエチレングリコ
ールやその誘導体を接着剤として用いて材料と支持体と
を密着させたのち、冷却硬化させる方法が提案されてい
る（特開平３−８１３８５号公報）。2. Description of the Related Art Conventionally, when cutting an ophthalmic lens material into a shape such as a contact lens or an intraocular lens, the ocular lens material and a support for installing the material on a cutting device are temporarily bonded. As a method of doing so, a method has been proposed in which a material and a support are brought into close contact with each other by using polyethylene glycol or a derivative thereof as an adhesive, and then the material is cooled and cured (JP-A-3-81385).
【０００３】しかしながら、前記ポリエチレングリコー
ルやその誘導体からなる接着剤には、生産性を向上させ
るために、たとえば旋盤などを用いて高速回転で切削加
工を行なう際に、その接着強度が不充分であるという問
題がある。However, the adhesive made of polyethylene glycol or its derivative has insufficient adhesive strength when it is cut at high speed by using a lathe or the like in order to improve productivity. There is a problem.
【０００４】そこで、前記接着剤の接着強度を向上せし
めるために、ポリエチレングリコールやその誘導体とし
てより分子量が大きいものを用いることが試みられてい
るが、分子量が大きくなるにつれてその溶融温度も高く
なり、取扱いが煩雑になって生産性が低下したり、さら
に高温で溶融している接着剤が眼用レンズ材料に接触す
ると、眼用レンズ材料に劣化などの悪影響を与えるおそ
れがあるなどの問題がある。Therefore, in order to improve the adhesive strength of the adhesive, it has been attempted to use polyethylene glycol or a derivative thereof having a larger molecular weight, but the melting temperature increases as the molecular weight increases, There is a problem that the handling becomes complicated and the productivity decreases, and when the adhesive that melts at high temperature comes into contact with the ophthalmic lens material, the ocular lens material may be adversely affected such as deterioration. .
【０００５】さらに、前記ポリエチレングリコールやそ
の誘導体からなる接着剤を用いたばあいには、切削加工
終了後、支持体から眼用レンズ材料を脱離するのに水中
に約３０分間以上といった長時間にわたって浸漬しなけ
ればならず、生産性の低下を招くなどの問題もある。Further, when the adhesive agent comprising polyethylene glycol or its derivative is used, it is necessary to remove the ophthalmic lens material from the support for a long time such as about 30 minutes or more after the completion of the cutting process. There is also a problem in that the productivity must be reduced because it must be dipped over the entire length.
【０００６】[0006]
【発明が解決しようとする課題】そこで、本発明者ら
は、前記従来技術に鑑みて溶融温度がそれほど上昇する
ことがなく、たとえば７０００〜８０００ｒｐｍ程度の
高速回転にも耐えうる高接着強度を呈し、常温硬化型で
あり、さらに親水性にもすぐれ、切削加工時の生産性を
向上させることができ、眼用レンズ材料に劣化などの悪
影響を与えるおそれがない眼用レンズ材料用仮接着剤を
うるべく鋭意研究を重ねた結果、ポリエチレングリコー
ルとポリＮ−ビニルピロリドンとを併用したばあいに
は、驚くべきことに、前記特性をすべて同時に満足する
仮接着剤がえられるというまったく新しい事実を見出
し、本発明を完成するにいたった。In view of the above-mentioned prior art, therefore, the present inventors have shown that the melting temperature does not rise so much and that the adhesive strength is high enough to withstand a high speed rotation of, for example, about 7,000 to 8,000 rpm. A temporary adhesive for ophthalmic lens materials that is a room-temperature curing type, has excellent hydrophilicity, can improve productivity during cutting, and does not have a negative effect on the ocular lens material such as deterioration. As a result of intensive diligent research, it was found that, when polyethylene glycol and poly-N-vinylpyrrolidone are used in combination, a surprisingly new fact is obtained that a temporary adhesive satisfying all of the above properties at the same time can be obtained. The present invention has been completed.
【０００７】[0007]
【課題を解決するための手段】すなわち、本発明は、数
平均分子量が１０００〜５０００のポリエチレングリコ
ールと数平均分子量が３００００〜２０００００のポリ
Ｎ−ビニルピロリドンとの混合物からなる眼用レンズ材
料用仮接着剤に関する。That is, the present invention provides a provisional ophthalmic lens material comprising a mixture of polyethylene glycol having a number average molecular weight of 1000 to 5000 and poly N-vinylpyrrolidone having a number average molecular weight of 30,000 to 200,000. Regarding adhesives.
【０００８】[0008]
【作用および実施例】本発明の眼用レンズ材料用仮接着
剤は、前記したように、数平均分子量が１０００〜５０
００のポリエチレングリコールと数平均分子量が３００
００〜２０００００のポリＮ−ビニルピロリドンとの混
合物からなるものである。FUNCTION AND EXAMPLE As described above, the temporary adhesive for ophthalmic lens material of the present invention has a number average molecular weight of 1,000 to 50.
Polyethylene glycol of 00 and number average molecular weight of 300
It is composed of a mixture of 100 to 200,000 poly-N-vinylpyrrolidone.
【０００９】本発明の眼用レンズ材料用仮接着剤におい
ては、ポリエチレングリコールとポリＮ−ビニルピロリ
ドンとを併用したことに大きな特徴がある。本発明の仮
接着剤は、ポリエチレングリコールとの相溶性にすぐれ
るとともに、該ポリエチレングリコールよりも親水性に
すぐれたポリＮ−ビニルピロリドンが用いられているの
で、たとえば水中で眼用レンズ材料を支持体から短時間
で容易に脱離させることができる。また本発明の仮接着
剤は、一般に常温硬化型接着剤に用いられるポリエチレ
ングリコールよりも溶融温度が高いポリＮ−ビニルピロ
リドンが用いられているにもかかわらず、その溶融温度
が従来のポリエチレングリコール単独からなる仮接着剤
と比べてそれほど高くないので、眼用レンズ材料の劣化
を防ぐことができる。さらに本発明の仮接着剤は、たと
えばシリコン系やフッ素系などの眼用レンズ材料および
たとえばポリメチルメタクリレートなどの樹脂製の支持
体に対する密着性がポリエチレングリコールよりもすぐ
れたポリＮ−ビニルピロリドンが用いられているので、
高接着強度を呈する。The temporary adhesive for ophthalmic lens materials of the present invention is characterized by the combined use of polyethylene glycol and poly N-vinylpyrrolidone. Since the temporary adhesive of the present invention uses poly-N-vinylpyrrolidone which has excellent compatibility with polyethylene glycol and is more hydrophilic than the polyethylene glycol, it supports an ophthalmic lens material in water, for example. It can be easily removed from the body in a short time. Further, the temporary adhesive of the present invention uses poly-N-vinylpyrrolidone, which has a higher melting temperature than that of polyethylene glycol which is generally used for room-temperature-curable adhesives, but has a melting temperature of conventional polyethylene glycol alone. Since it is not so expensive as compared with the temporary adhesive made of, it is possible to prevent deterioration of the ophthalmic lens material. Further, as the temporary adhesive of the present invention, poly N-vinylpyrrolidone, which has better adhesion than polyethylene glycol to an ophthalmic lens material such as a silicon-based or fluorine-based material and a support made of a resin such as polymethylmethacrylate, is used. Since it has been
Exhibits high adhesive strength.
【００１０】本発明に用いられるポリエチレングリコー
ルは、その数平均分子量が１０００〜５０００、好まし
くは１５００〜４０００、さらに好ましくは１５００〜
２０００のものである。かかるポリエチレングリコール
の数平均分子量が１０００未満であるばあいには、常温
付近で固体として存在しにくく、常温硬化型の仮接着剤
をうることが困難となり、また５０００をこえるばあい
には、ポリＮ−ビニルピロリドンとの相溶性が低下する
ようになるとともに、えられる仮接着剤の溶融温度が高
くなりすぎて眼用レンズ材料への悪影響が懸念されるよ
うになる。The polyethylene glycol used in the present invention has a number average molecular weight of 1,000 to 5,000, preferably 1,500 to 4,000, more preferably 1,500.
It is 2000. When the number average molecular weight of the polyethylene glycol is less than 1000, it hardly exists as a solid at around room temperature, making it difficult to obtain a room-temperature-curable temporary adhesive. The compatibility with N-vinylpyrrolidone will decrease, and the melting temperature of the temporary adhesive obtained will become too high, which may cause adverse effects on the ophthalmic lens material.
【００１１】本発明に用いられるポリＮ−ビニルピロリ
ドンは、その数平均分子量が３００００〜２００００
０、好ましくは３００００〜１０００００のものであ
る。かかるポリＮ−ビニルピロリドンの数平均分子量が
３００００未満であるばあいには、ポリＮ−ビニルピロ
リドンの強度が小さく、えられる仮接着剤が呈する接着
強度が低下するようになり、また２０００００をこえる
ばあいには、ポリエチレングリコールとの相溶性が低下
するようになる。The poly (N-vinylpyrrolidone) used in the present invention has a number average molecular weight of 30,000 to 20,000.
0, preferably 30,000 to 100,000. When the number average molecular weight of the poly-N-vinylpyrrolidone is less than 30,000, the strength of the poly-N-vinylpyrrolidone is low and the adhesive strength of the temporary adhesive obtained is low, and exceeds 200,000. In this case, the compatibility with polyethylene glycol will decrease.
【００１２】前記ポリエチレングリコールとポリＮ−ビ
ニルピロリドンとの混合比は、重量比で６５：３５〜９
５：５、なかんづく７０：３０〜９０：１０であること
が好ましい。かかるポリエチレングリコールの割合が前
記範囲未満であるばあいには、えられる仮接着剤が呈す
る接着強度が低下するようになる傾向があり、また前記
範囲をこえるばあいには、仮接着剤の溶融温度が上昇し
すぎて取扱いが煩雑になる傾向がある。The mixing ratio of polyethylene glycol and poly N-vinylpyrrolidone is 65: 35-9 by weight.
It is preferably 5: 5, especially 70:30 to 90:10. When the proportion of such polyethylene glycol is less than the above range, the adhesive strength of the temporary adhesive obtained tends to be lowered, and when it exceeds the above range, the melting of the temporary adhesive tends to occur. The temperature tends to rise too much and handling tends to be complicated.
【００１３】本発明の眼用レンズ材料用仮接着剤に用い
られる混合物は、前記ポリエチレングリコールおよびポ
リＮ−ビニルピロリドンをそれぞれ溶融温度以上ないし
分解温度よりも低い温度に加熱して溶融させたものを、
所望の混合比となるように使用量を調整して混合するこ
とによってうることができるが、ポリエチレングリコー
ルおよびポリＮ−ビニルピロリドンそれぞれの粉体を所
望の混合比で混合し、該粉体の混合物をポリエチレング
リコールの溶融温度よりも２０〜３０℃程度高い温度に
加熱することによってうることもできる。なお、かかる
粉体の混合物を加熱する方法は、かかる加熱の際の温度
が、ポリＮ−ビニルピロリドン単体の溶融温度よりも低
いにもかかわらず、ポリＮ−ビニルピロリドンが溶融さ
れうるので、それぞれを溶融温度以上に加熱して混合
し、混合体をうるばあいと比べ、加熱温度が低く、容易
に仮接着剤を製造することができる点から好ましい。The mixture used in the temporary adhesive for ophthalmic lens material of the present invention is a mixture of polyethylene glycol and poly-N-vinylpyrrolidone, which are heated to a temperature above the melting temperature or below the decomposition temperature to be melted. ,
It can be obtained by adjusting the amount used so as to obtain a desired mixing ratio, and mixing the powders. Polyethylene glycol and poly-N-vinylpyrrolidone powders are mixed at a desired mixing ratio to obtain a mixture of the powders. Can also be obtained by heating to a temperature about 20 to 30 ° C. higher than the melting temperature of polyethylene glycol. It should be noted that the method of heating the mixture of the powders is such that the temperature at the time of the heating is lower than the melting temperature of the poly (N-vinylpyrrolidone) alone, but the poly (N-vinylpyrrolidone) can be melted. Is heated at a temperature higher than the melting temperature and mixed, and the mixture is heated at a lower heating temperature as compared with Urubai, and a temporary adhesive can be easily produced, which is preferable.
【００１４】なお、本発明の眼用レンズ材料用仮接着剤
は前記混合物からなるものであるが、かかる混合物のほ
かにも、たとえば色素、可塑剤、安定剤、充填剤などの
添加物を、本発明の目的を阻害しない範囲内で所望量を
調整して適宜配合することができる。The temporary adhesive for ophthalmic lens materials of the present invention comprises the above mixture. In addition to the mixture, for example, additives such as pigments, plasticizers, stabilizers and fillers may be added. A desired amount can be adjusted and appropriately blended within a range that does not impair the object of the present invention.
【００１５】本発明の眼用レンズ材料用仮接着剤は、た
とえば図１に示されるように、切削加工装置を用いて眼
用レンズ材料を切削加工する際の該材料と支持体との仮
接着に用いられる。The temporary adhesive for eye lens material of the present invention is, for example, as shown in FIG. 1, when the eye lens material is cut using a cutting device, the material and the support are temporarily bonded. Used for.
【００１６】図１において、まずステップ（Ｉ）に示さ
れるように、眼用レンズ材料用仮接着剤１の所望量をノ
ズル３を用いて支持体２の眼用レンズ材料と接着される
面に滴下し、ステップ（II）に示されるように、その上
に眼用レンズ材料４を圧着固定して常温で放置し、眼用
レンズ材料用仮接着剤１を硬化させて該眼用レンズ材料
４と支持体２とのあいだに仮接着剤層５を設ける。その
のち、ステップ(III)に示されるように、仮接着剤層５
を介して眼用レンズ材料４が仮接着された支持体２を切
削加工装置６に設置し、バイト７を矢印Ａの方向に、支
持体２を矢印Ｂの方向に回転させて所望の形状となるよ
うに眼用レンズ材料４に切削加工を施す。切削加工終了
後、所望の形状に切削加工が施された眼用レンズ材料が
仮接着されたままの支持体を切削加工装置から取外し、
ステップ（IV）に示されるように、眼用レンズ材料４に
切削加工を施してえられた所望の形状の眼用レンズ材料
９と支持体２とを、水８に浸漬して脱離させる。In FIG. 1, first, as shown in step (I), a desired amount of the temporary adhesive 1 for an ophthalmic lens material is applied to the surface of the support 2 to be adhered to the ocular lens material using the nozzle 3. Dropwise, as shown in step (II), the ophthalmic lens material 4 is pressure-bonded and fixed thereon and left at room temperature to cure the temporary ophthalmic lens material adhesive 1 to cure the ophthalmic lens material 4. The temporary adhesive layer 5 is provided between the support 2 and the support 2. After that, as shown in step (III), the temporary adhesive layer 5
The support body 2 to which the ophthalmic lens material 4 is temporarily adhered is installed in the cutting device 6 via the tool, and the cutting tool 7 is rotated in the direction of arrow A and the support body 2 is rotated in the direction of arrow B to obtain a desired shape. The ophthalmic lens material 4 is cut so that After the cutting process is completed, remove the support body in which the eye lens material, which has been cut into a desired shape, is temporarily adhered from the cutting device,
As shown in step (IV), the eye lens material 9 having a desired shape obtained by cutting the eye lens material 4 and the support 2 are immersed in water 8 to be detached.
【００１７】なお、本発明の眼用レンズ材料用仮接着剤
は、常温硬化型のものであるので、該仮接着剤を常温で
放置することによって硬化させることができるが、とく
に急速に硬化させようとするばあいには、冷却処理を施
してもよい。また、本発明の眼用レンズ材料用仮接着剤
は、親水性にすぐれたものであるので、前記所望の形状
の眼用レンズ材料の脱離は、該眼用レンズ材料が仮接着
されたままの支持体をたとえば水などの水系の溶液に浸
漬するだけで短時間で行なうことができるが、さらに短
時間で脱離させようとするばあいには、たとえば超音波
装置などによる超音波を利用してもよい。Since the temporary adhesive for ophthalmic lens materials of the present invention is a room temperature curing type, it can be cured by leaving it at room temperature, but it is particularly rapidly cured. In such a case, cooling treatment may be performed. Further, since the temporary adhesive for an ophthalmic lens material of the present invention is excellent in hydrophilicity, the ophthalmic lens material having the desired shape can be detached while the ocular lens material is temporarily adhered. This can be done in a short time only by immersing the support in, for example, an aqueous solution such as water, but if it is desired to release the support in a shorter time, use ultrasonic waves with an ultrasonic device, for example. You may.
【００１８】また、本発明の眼用レンズ材料用仮接着剤
を用いて仮接着される眼用レンズ材料の材質にはとくに
限定がなく、通常の眼用レンズ材料のいずれに対しても
本発明の仮接着剤を適用することができ、また支持体に
もとくに限定がなく、たとえばポリメチルメタクリレー
トなどの樹脂製、ステンレス鋼、真鍮などの金属製のも
のなどを用いることができる。The material of the ophthalmic lens material temporarily adhered using the temporary adhesive for ophthalmic lens material of the present invention is not particularly limited, and the present invention can be applied to any ordinary ophthalmic lens material. The temporary adhesive can be applied, and the support is not particularly limited, and for example, a resin such as polymethylmethacrylate or a metal such as stainless steel or brass can be used.
【００１９】さらに、本発明の眼用レンズ材料用仮接着
剤は、調製後すぐに溶融状態のままで用いることはもち
ろんのこと、一度冷却して固化させたのち、使用時に再
度その溶融温度以上の温度に加熱して溶融状態に戻して
用いることも可能である。Furthermore, the temporary adhesive for ophthalmic lens materials of the present invention can be used not only in the molten state immediately after preparation but also once cooled and solidified, and then used again at the melting temperature or higher. It is also possible to use it by heating it to the temperature and returning it to the molten state.
【００２０】つぎに本発明の眼用レンズ材料用仮接着剤
を実施例に基づいてさらに詳細に説明するが、本発明は
かかる実施例のみに限定されるものではない。Next, the temporary adhesive for ophthalmic lens materials of the present invention will be described in more detail based on examples, but the present invention is not limited to these examples.
【００２１】実施例１ ポリエチレングリコール（数平均分子量１５００、溶融
温度４４〜４５℃、以下、ＰＥＧ−（Ｉ）という）の粉
体９０重量部およびポリＮ−ビニルピロリドン（数平均
分子量３５０００〜４００００、溶融温度約１２０℃）
の粉体１０重量部を混合し、７０〜８０℃に加熱して溶
融させて混合物をえた。えられた混合物の溶融温度は４
８〜５０℃であった。Example 1 90 parts by weight of powder of polyethylene glycol (number average molecular weight 1500, melting temperature 44 to 45 ° C., hereinafter referred to as PEG- (I)) and poly N-vinylpyrrolidone (number average molecular weight 35,000 to 40,000, (Melting temperature about 120 ℃)
10 parts by weight of the powder of Example 1 was mixed and heated to 70 to 80 ° C. to be melted to obtain a mixture. The melting temperature of the obtained mixture is 4
It was 8 to 50 ° C.
【００２２】つぎに、えられた混合物を仮接着剤として
用い、図１のステップ（Ｉ）〜（II）に示されるよう
に、ノズルを用いて仮接着剤５μｌを支持体に滴下し、
その上に眼用レンズ材料を圧着固定して常温で放置し、
仮接着剤を硬化させて仮接着を完了した。なお、用いた
眼用レンズ材料は、シリコンおよびフッ素を含有したヒ
ドロゲル材、支持体はポリメチルメタクリレート製のも
のである。Next, using the obtained mixture as a temporary adhesive, 5 μl of the temporary adhesive was dropped onto the support using a nozzle as shown in steps (I) to (II) of FIG.
Then, the ophthalmic lens material is pressure-bonded and fixed at room temperature,
The temporary adhesive was cured to complete the temporary adhesion. The ophthalmic lens material used was a hydrogel material containing silicon and fluorine, and the support was made of polymethylmethacrylate.
【００２３】つぎに、図１のステップ(III) に示される
ように、眼用レンズ材料が仮接着された支持体を切削加
工装置（旋盤）に設置し、約７０００〜８０００ｒｐｍ
の回転速度でバイトを用いて約０．０４ｍｍの厚さとな
るように眼用レンズ材料に切削加工を施した。なお、か
かる切削加工の際に、眼用レンズ材料が支持体からわず
かでも浮き上がるといった問題は何ら生じなかった。Next, as shown in step (III) of FIG. 1, the support to which the ophthalmic lens material is temporarily adhered is set in a cutting machine (lathe), and about 7,000 to 8,000 rpm.
The ophthalmic lens material was cut to a thickness of about 0.04 mm using a turning tool at a rotation speed of. It should be noted that there was no problem that the ophthalmic lens material was slightly lifted from the support during the cutting process.
【００２４】つぎに、切削加工が施された眼用レンズ材
料が仮接着された支持体を切削加工装置から取外し、図
１のステップ（IV）に示されるように、水に浸漬して眼
用レンズ材料を支持体から脱離させた。なお、かかる脱
離に要した時間は１０分間未満であった。Next, the support to which the cut lens material for eye has been temporarily adhered is removed from the cutting apparatus, and immersed in water as shown in step (IV) of FIG. The lens material was released from the support. The time required for such desorption was less than 10 minutes.
【００２５】なお、脱離した切削加工が施された眼用レ
ンズ材料は、劣化などをまったく起こしておらず、その
材質に変化はなかった。The detached and cut eye lens material did not deteriorate at all, and its material did not change.
【００２６】また、えられた混合物からなる仮接着剤の
接着強度を以下の方法にしたがって調べた。その結果を
表１に示す。The adhesive strength of the temporary adhesive composed of the obtained mixture was examined according to the following method. The results are shown in Table 1.
【００２７】（接着強度）図２に示されるように、幅１
０ｍｍ、長さ５０ｍｍ、厚さ２ｍｍのポリメチルメタク
リレート製の２枚のプレート１０、１１を、仮接着剤を
用いて長さ５ｍｍ分を接着させて接着面１２を設けたの
ち、これら２枚のプレート１０、１１を矢印ＣおよびＤ
の正反対の方向に引張り、接着面１２の単位面積（ｍｍ
2 ）あたりの強度を測定した。(Adhesive Strength) As shown in FIG.
Two plates 10 and 11 made of polymethylmethacrylate having a length of 0 mm, a length of 50 mm and a thickness of 2 mm are adhered to each other for a length of 5 mm by using a temporary adhesive to provide an adhesive surface 12, and then these two plates are provided. Plates 10, 11 with arrows C and D
Unit area of the adhesive surface 12 (mm
2 ) The intensity was measured.
【００２８】実施例２〜７および比較例１〜３ 実施例２〜７においては、組成を表１に示すように変更
したほかは実施例１と同様にして混合物をえた。えられ
た混合物の溶融温度を表１に示す。Examples 2 to 7 and Comparative Examples 1 to 3 In Examples 2 to 7, mixtures were obtained in the same manner as in Example 1 except that the composition was changed as shown in Table 1. The melting temperature of the obtained mixture is shown in Table 1.
【００２９】つぎにえられた混合物を仮接着剤として用
い、実施例１と同様にして眼用レンズ材料に切削加工を
施し、支持体から脱離させた。かかる脱離に要した時間
を表１に示す。Using the mixture thus obtained as a temporary adhesive, the ophthalmic lens material was subjected to cutting in the same manner as in Example 1 to be released from the support. Table 1 shows the time required for such desorption.
【００３０】なお、実施例２〜７においては、切削加工
の際に、眼用レンズ材料が支持体からわずかでも浮き上
がるといった問題は何ら生じず、脱離した切削加工が施
された眼用レンズ材料は、劣化などをまったく起こして
おらず、その材質に変化はなかった。In Examples 2 to 7, there was no problem that the ophthalmic lens material was slightly lifted from the support during the cutting process, and the detached cutting ocular lens material was removed. Had no deterioration, and its material was unchanged.
【００３１】また、えられた混合物からなる仮接着剤の
接着強度を実施例１と同様にして調べた。その結果を表
１に示す。The adhesive strength of the temporary adhesive composed of the obtained mixture was examined in the same manner as in Example 1. The results are shown in Table 1.
【００３２】比較例１〜３においては、混合物のかわり
に表１に示すポリエチレングリコールのみを溶融させた
ものを仮接着剤として用い、前記と同様にして切削加工
を行ない、さらに接着強度を調べた。なお、表１中の混
合物の溶融温度の欄にはポリエチレングリコールの溶融
温度を示した。また比較例１の接着強度は測定不可能で
あった。In Comparative Examples 1 to 3, instead of the mixture, only polyethylene glycol shown in Table 1 was melted and used as a temporary adhesive, cutting was performed in the same manner as described above, and the adhesive strength was examined. . The melting temperature of polyethylene glycol is shown in the melting temperature column of the mixture in Table 1. Further, the adhesive strength of Comparative Example 1 could not be measured.
【００３３】なお、表１中のポリエチレングリコール
は、以下のことを意味する。The polyethylene glycol in Table 1 means the following.
【００３４】ＰＥＧ−（II）：数平均分子量２０００、
溶融温度５１〜５２℃ ＰＥＧ− (III)：数平均分子量４０００、溶融温度５４
〜５６℃PEG- (II): number average molecular weight 2000,
Melting temperature 51 to 52 ° C. PEG- (III): number average molecular weight 4000, melting temperature 54
~ 56 ° C
【００３５】[0035]
【表１】 [Table 1]
【００３６】表１に示された結果から、実施例１〜７で
えられた仮接着剤は、比較例１〜３でえられた仮接着剤
と比較して溶融温度がそれほど高くなく、接着強度がき
わめて高いものであり、これら実施例１〜７でえられた
仮接着剤を用いたばあいには、１０分間未満といったき
わめて短時間で眼用レンズ材料を支持体から脱離するこ
とができることがわかる。From the results shown in Table 1, the temporary adhesives obtained in Examples 1 to 7 have a melting temperature that is not so high as compared with the temporary adhesives obtained in Comparative Examples 1 to 3, and The strength is extremely high, and when the temporary adhesives obtained in Examples 1 to 7 are used, the ophthalmic lens material can be detached from the support in an extremely short time of less than 10 minutes. I know that I can do it.
【００３７】なお、前記実施例１〜７でえられた混合物
を一度冷却して固化させたのち、再びそれぞれの溶融温
度以上の温度に加熱して溶融させたものを仮接着剤とし
て用い、前記と同様にして切削加工を行ない、接着強度
を調べた。その結果、実施例１〜７のように調製してす
ぐの溶融状態のままの仮接着剤のばあいと同様に、仮接
着剤の接着強度がきわめて高く、切削加工の際に眼用レ
ンズ材料が支持体からわずかでも浮き上がるといった問
題は何ら生じず、きわめて短時間で眼用レンズ材料を支
持体から脱離することができ、脱離した切削加工が施さ
れた眼用レンズ材料の材質にも変化はなかった。The mixture obtained in each of Examples 1 to 7 was once cooled and solidified, and then heated again to a temperature equal to or higher than each melting temperature and melted, and used as a temporary adhesive. The cutting process was carried out in the same manner as in, and the adhesive strength was examined. As a result, the adhesive strength of the temporary adhesive is extremely high, as in the case of the temporary adhesive in the molten state immediately after being prepared as in Examples 1 to 7, and the ophthalmic lens material is used during cutting. Does not cause any problem of being lifted up from the support, and the ocular lens material can be detached from the support in an extremely short time. There was no change.
【００３８】[0038]
【発明の効果】本発明の眼用レンズ材料用仮接着剤は、
溶融温度がそれほど上昇することがなく、高速回転にも
耐えうる高接着強度を呈し、常温硬化型であり、さらに
親水性にもすぐれるので、該眼用レンズ材料用仮接着剤
を用いたばあいには、たとえば眼用レンズ材料を支持体
から特別な装置を用いずに短時間で脱離させることがで
きたり、低温で作業が行なえるなど、切削加工時の生産
性を向上させることができ、また眼用レンズ材料を劣化
させるおそれがないなどの効果が奏される。The temporary adhesive for ophthalmic lens material of the present invention comprises:
Since the melting temperature does not increase so much, high adhesive strength that can withstand high-speed rotation is exhibited, it is a room temperature curable type, and it is also excellent in hydrophilicity, a temporary adhesive for ophthalmic lens materials is used. On the other hand, it is possible to improve productivity during cutting, for example, by removing the ophthalmic lens material from the support in a short time without using a special device, or by working at a low temperature. Further, it is possible to obtain the effect that there is no possibility of deteriorating the ophthalmic lens material.
【図１】本発明の眼用レンズ材料用仮接着剤を用いて眼
用レンズ材料に切削加工を施す際の一実施態様を示す概
略説明図である。FIG. 1 is a schematic explanatory view showing one embodiment when a cutting process is performed on an ophthalmic lens material using the temporary adhesive for ophthalmic lens material of the present invention.
【図２】実施例および比較例でえられた眼用レンズ材料
用仮接着剤の接着強度を測定する際の概略説明図であ
る。FIG. 2 is a schematic explanatory diagram for measuring the adhesive strength of temporary adhesives for ophthalmic lens materials obtained in Examples and Comparative Examples.
１ 眼用レンズ材料用仮接着剤 1 Temporary adhesive for eye lens material
Claims (2)
リエチレングリコールと数平均分子量が３００００〜２
０００００のポリＮ−ビニルピロリドンとの混合物から
なる眼用レンズ材料用仮接着剤。1. A polyethylene glycol having a number average molecular weight of 1,000 to 5,000 and a number average molecular weight of 30,000 to 2
A temporary adhesive for an ophthalmic lens material, which is composed of a mixture of 00000 and poly-N-vinylpyrrolidone.
ルピロリドンとの混合比が重量比で６５：３５〜９５：
５である請求項１記載の眼用レンズ材料用仮接着剤。2. The mixing ratio of polyethylene glycol and poly N-vinylpyrrolidone is 65:35 to 95: by weight.
5. The temporary adhesive for ophthalmic lens material according to claim 1, which is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23625893A JPH0790241A (en) | 1993-09-22 | 1993-09-22 | Temporary adhesive for eye lens material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23625893A JPH0790241A (en) | 1993-09-22 | 1993-09-22 | Temporary adhesive for eye lens material |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001269107A Division JP2002088336A (en) | 2001-09-05 | 2001-09-05 | Method for producing tentative adhesive for eye lens material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0790241A true JPH0790241A (en) | 1995-04-04 |
Family
ID=16998120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23625893A Pending JPH0790241A (en) | 1993-09-22 | 1993-09-22 | Temporary adhesive for eye lens material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0790241A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0979725A2 (en) | 1998-08-11 | 2000-02-16 | Menicon Co., Ltd. | Mold assembly for lens blank |
| US6071111A (en) * | 1997-05-20 | 2000-06-06 | Menicon Co., Ltd. | Mold assembly for forming contact lens blank |
| US9005609B2 (en) | 2003-08-07 | 2015-04-14 | Ethicon, Inc. | Hemostatic compositions containing sterile thrombin |
| US9114172B2 (en) | 2006-08-02 | 2015-08-25 | Baxter International Inc. | Rapidly acting dry sealant and methods for use and manufacture |
| US9375505B2 (en) | 2010-04-07 | 2016-06-28 | Baxter International Inc. | Hemostatic sponge |
| US9517287B2 (en) | 2009-12-16 | 2016-12-13 | Baxter International, Inc. | Hemostatic sponge |
| US9724078B2 (en) | 2013-06-21 | 2017-08-08 | Ferrosan Medical Devices A/S | Vacuum expanded dry composition and syringe for retaining same |
| US9821025B2 (en) | 2011-10-11 | 2017-11-21 | Baxter International Inc. | Hemostatic compositions |
| US9833541B2 (en) | 2011-10-27 | 2017-12-05 | Baxter International Inc. | Hemostatic compositions |
| US10322170B2 (en) | 2011-10-11 | 2019-06-18 | Baxter International Inc. | Hemostatic compositions |
| US10653837B2 (en) | 2014-12-24 | 2020-05-19 | Ferrosan Medical Devices A/S | Syringe for retaining and mixing first and second substances |
| US10799611B2 (en) | 2012-06-12 | 2020-10-13 | Ferrosan Medical Devices A/S | Dry haemostatic composition |
| US10918796B2 (en) | 2015-07-03 | 2021-02-16 | Ferrosan Medical Devices A/S | Syringe for mixing two components and for retaining a vacuum in a storage condition |
| US10994045B2 (en) | 2010-06-01 | 2021-05-04 | Baxter International Inc. | Process for making dry and stable hemostatic compositions |
| US11046818B2 (en) | 2014-10-13 | 2021-06-29 | Ferrosan Medical Devices A/S | Dry composition for use in haemostasis and wound healing |
| US11103616B2 (en) | 2013-12-11 | 2021-08-31 | Ferrosan Medical Devices A/S | Dry composition comprising an extrusion enhancer |
| US11109849B2 (en) | 2012-03-06 | 2021-09-07 | Ferrosan Medical Devices A/S | Pressurized container containing haemostatic paste |
| US11801324B2 (en) | 2018-05-09 | 2023-10-31 | Ferrosan Medical Devices A/S | Method for preparing a haemostatic composition |
-
1993
- 1993-09-22 JP JP23625893A patent/JPH0790241A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6071111A (en) * | 1997-05-20 | 2000-06-06 | Menicon Co., Ltd. | Mold assembly for forming contact lens blank |
| US6276920B1 (en) | 1998-08-11 | 2001-08-21 | Menicon Co., Ltd. | Mold assembly for lens blank, having mold cavity and material reservoir defined by press-fitting engagement of upper and lower molds with intermediate sleeve |
| EP0979725A2 (en) | 1998-08-11 | 2000-02-16 | Menicon Co., Ltd. | Mold assembly for lens blank |
| US9005609B2 (en) | 2003-08-07 | 2015-04-14 | Ethicon, Inc. | Hemostatic compositions containing sterile thrombin |
| US9114172B2 (en) | 2006-08-02 | 2015-08-25 | Baxter International Inc. | Rapidly acting dry sealant and methods for use and manufacture |
| US9872934B2 (en) | 2009-12-16 | 2018-01-23 | Baxter International Inc. | Hemostatic sponge |
| US11071804B2 (en) | 2009-12-16 | 2021-07-27 | Baxter International Inc. | Hemostatic sponge |
| US9517287B2 (en) | 2009-12-16 | 2016-12-13 | Baxter International, Inc. | Hemostatic sponge |
| US10441674B2 (en) | 2010-04-07 | 2019-10-15 | Baxter International Inc. | Hemostatic sponge |
| US11478566B2 (en) | 2010-04-07 | 2022-10-25 | Baxter International Inc. | Hemostatic sponge |
| US9375505B2 (en) | 2010-04-07 | 2016-06-28 | Baxter International Inc. | Hemostatic sponge |
| US10994045B2 (en) | 2010-06-01 | 2021-05-04 | Baxter International Inc. | Process for making dry and stable hemostatic compositions |
| US12208176B2 (en) | 2010-06-01 | 2025-01-28 | Baxter International Inc. | Process for making dry and stable hemostatic compositions |
| US9821025B2 (en) | 2011-10-11 | 2017-11-21 | Baxter International Inc. | Hemostatic compositions |
| US10322170B2 (en) | 2011-10-11 | 2019-06-18 | Baxter International Inc. | Hemostatic compositions |
| US9833541B2 (en) | 2011-10-27 | 2017-12-05 | Baxter International Inc. | Hemostatic compositions |
| US11109849B2 (en) | 2012-03-06 | 2021-09-07 | Ferrosan Medical Devices A/S | Pressurized container containing haemostatic paste |
| US10799611B2 (en) | 2012-06-12 | 2020-10-13 | Ferrosan Medical Devices A/S | Dry haemostatic composition |
| US10595837B2 (en) | 2013-06-21 | 2020-03-24 | Ferrosan Medical Devices A/S | Vacuum expanded dry composition and syringe for retaining same |
| US9724078B2 (en) | 2013-06-21 | 2017-08-08 | Ferrosan Medical Devices A/S | Vacuum expanded dry composition and syringe for retaining same |
| US11103616B2 (en) | 2013-12-11 | 2021-08-31 | Ferrosan Medical Devices A/S | Dry composition comprising an extrusion enhancer |
| US11046818B2 (en) | 2014-10-13 | 2021-06-29 | Ferrosan Medical Devices A/S | Dry composition for use in haemostasis and wound healing |
| US10653837B2 (en) | 2014-12-24 | 2020-05-19 | Ferrosan Medical Devices A/S | Syringe for retaining and mixing first and second substances |
| US10918796B2 (en) | 2015-07-03 | 2021-02-16 | Ferrosan Medical Devices A/S | Syringe for mixing two components and for retaining a vacuum in a storage condition |
| US11801324B2 (en) | 2018-05-09 | 2023-10-31 | Ferrosan Medical Devices A/S | Method for preparing a haemostatic composition |
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