JPH01192511A - Manufacture of resin lens - Google Patents
Manufacture of resin lensInfo
- Publication number
- JPH01192511A JPH01192511A JP63017611A JP1761188A JPH01192511A JP H01192511 A JPH01192511 A JP H01192511A JP 63017611 A JP63017611 A JP 63017611A JP 1761188 A JP1761188 A JP 1761188A JP H01192511 A JPH01192511 A JP H01192511A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- polymerization reaction
- resin
- monomer
- mold
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
【発明の詳細な説明】
「利用分野」
本発明は、注型重合による熱硬化性樹脂レンズの製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Application The present invention relates to a method for manufacturing thermosetting resin lenses by cast polymerization.
「従来技術及びその問題点」
樹脂レンズ用の素材としては、従来、例えばジグリコー
ルジアリルカーボネート樹脂、メタクリル酸樹脂、ポリ
カーボネート、ウレタン樹脂等が使用されている。樹脂
レンズは、上記のような樹脂の単量体混合物を２個のモ
ールドとそれを保持する環状ガスケットから成るモール
ド型中で注型重合することによって製造される。このモ
ールド型は、ガスケットによって密封されているが、そ
の密封は完全ではな（、重合の進行中に混合液が漏出す
る傾向がある。"Prior art and its problems" Conventionally, as materials for resin lenses, for example, diglycol diallyl carbonate resin, methacrylic acid resin, polycarbonate, urethane resin, etc. have been used. A resin lens is manufactured by casting polymerizing a resin monomer mixture as described above in a mold consisting of two molds and an annular gasket for holding the molds. Although the mold is sealed by a gasket, the seal is not perfect (the mixture tends to leak out during polymerization).
更に、重合により生成した樹脂が硬化する際には、収縮
が起こる。例えば、ウレタン樹脂の場合には、一般に約
８％程度の収縮が起こる。この収縮が起こると、モール
ド型中が真空になり、モールドとガスケットとの間の間
隙から周囲の空気がモールド型内に侵入して、レンズに
泡不良が起こってしまう。Furthermore, when the resin produced by polymerization is cured, shrinkage occurs. For example, in the case of urethane resin, shrinkage generally occurs by about 8%. When this contraction occurs, a vacuum is created in the mold, and surrounding air enters the mold through the gap between the mold and the gasket, causing bubble defects in the lens.
「発明の目的」
本発明は、モールドとガスケットとの間の間隙からの重
合混合液の漏出及び空気の侵入を防止することができる
樹脂レンズの製造方法を提供することを目的とする。"Objective of the Invention" An object of the present invention is to provide a method for manufacturing a resin lens that can prevent leakage of a polymeric mixture and intrusion of air from a gap between a mold and a gasket.
「発明の構成」
本発明による樹脂レンズの製造方法は、２個のモールド
とそれを保持する環状ガスケットから構成されるモール
ド型中に熱硬化性樹脂単量体を主成分とする混合液を注
入し、重合させて樹脂レンズを成形する方法において、
前記の混合液を注入したモールド型を、重合反応を促進
する化合物又は単量体と急速に反応する化合物の雰囲気
中に置いて、重合反応を行うことを特徴とする。"Structure of the Invention" The method for manufacturing a resin lens according to the present invention involves injecting a liquid mixture mainly composed of thermosetting resin monomers into a mold consisting of two molds and an annular gasket that holds the molds. In the method of polymerizing and molding a resin lens,
The method is characterized in that the mold into which the above-mentioned mixed solution is injected is placed in an atmosphere of a compound that promotes the polymerization reaction or a compound that rapidly reacts with the monomer to carry out the polymerization reaction.
本発明方法を実施する場合には、まず、モールド型中に
熱硬化性樹脂単量体、重合開始剤、硬化剤等、目的とす
る樹脂の製造に必要な成分を含む混合液を注入する。次
いで、この混合液を含むモールド型を、重合反応を促進
する化合物又は単量体と急速に反応する化合物の雰囲気
中に置く。When carrying out the method of the present invention, first, a liquid mixture containing components necessary for producing the desired resin, such as a thermosetting resin monomer, a polymerization initiator, and a curing agent, is poured into a mold. The mold containing this mixture is then placed in an atmosphere of a compound that promotes the polymerization reaction or a compound that reacts rapidly with the monomer.
本発明において、重合反応を促進する化合物又は単量体
と急速に反応する化合物とは、重合反応を促進するか又
は単量体と反応して、重合体の生成、その網状化及び硬
化反応を促進する物質を意味し、一般に、硬化促進剤、
硬化剤、架橋剤等として用いられる物質である。In the present invention, a compound that promotes a polymerization reaction or a compound that rapidly reacts with a monomer refers to a compound that promotes a polymerization reaction or reacts with a monomer to accelerate the formation of a polymer, its reticulation, and a curing reaction. means a substance that accelerates, generally a curing accelerator,
A substance used as a curing agent, crosslinking agent, etc.
このような物質は、単量体及び目的とする樹脂の種類に
よって異なる。ところで、イソシアネート化合物とヒド
ロキシ化合物とを反応させて得られる高屈折率のウレタ
ン樹脂がレンズ用素材として開発され、注目されている
。そこで、ウレタン樹脂（含硫ウレタン樹脂を含む）を
製造する場合を例にとって以下、本発明を詳述する。Such materials vary depending on the monomer and the type of resin intended. By the way, a high refractive index urethane resin obtained by reacting an isocyanate compound and a hydroxy compound has been developed as a lens material and is attracting attention. Therefore, the present invention will be described in detail below, taking as an example the case of manufacturing urethane resin (including sulfur-containing urethane resin).
ウレタン樹脂レンズを製造する場合には、重合反応を促
進する化合物又は単量体と急速に反応する化合物は、ア
ンモニア又はアミン化合物である。When producing urethane resin lenses, the compound that promotes the polymerization reaction or the compound that reacts rapidly with the monomer is ammonia or an amine compound.
アミン化合物としては、メチルアミン、ジメチルアミン
、トリメチルアミン、エチルアミン、ジエチルアミン、
トリエチルアミン、ｔ−ブチルアミン、メチルエチルア
ミン等の脂肪族アミン又はＮ。Amine compounds include methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine,
Aliphatic amines such as triethylamine, t-butylamine, methylethylamine or N.
Ｎ−ジェタノール−ｐ−トルイジン、ジメチル−ｐ−）
ルイジン、Ｐ−トルイジン、ジフェニルアミン、０−ニ
トロアニリン、ｐ−フ゛ロモアニリニ／、２．４．６−
ドリブロモアニリン等の芳香族アミンが挙げられる。N-jetanol-p-toluidine, dimethyl-p-)
Luidine, P-toluidine, diphenylamine, 0-nitroaniline, p-fluoroaniline/, 2.4.6-
Examples include aromatic amines such as dolibromoaniline.
本発明方法によりウレタン樹脂レンズを製造する場合に
は、アンモニア又はアミン化合物の雰囲気内にモールド
型を置いて重合反応を行う。従って、アンモニア又はア
ミン化合物の液中にモールド型を保持するか、又は容器
中でモールド型をアンモニア又はアミン化合物の蒸気と
接触させてもよい、後者の方法が好ましく、この場合に
は、アンモニア又はアミン化合物のうち室温又は重合温
度で気化する化合物を使用する。When manufacturing a urethane resin lens by the method of the present invention, a polymerization reaction is carried out by placing a mold in an atmosphere of ammonia or an amine compound. Therefore, the latter method is preferred, in which the mold may be held in a liquid of ammonia or amine compound, or the mold may be brought into contact with vapors of ammonia or amine compound in a container; Among the amine compounds, a compound that vaporizes at room temperature or at the polymerization temperature is used.
アンモニア又はアミン化合物は、イソシアネート化合物
とヒドロキシ化合物との重合反応を著しく促進するので
、これらの単量体がモールドとガスケットとの間隙から
漏出し始め、アンモニア又はアミン化合物と接触すると
、その部分で重合反応が急速に進行し、生成樹脂が硬化
し、結局、間隙を封止する。その結果、モールド型内で
樹脂が硬化し、収縮が起こっても、空気の侵入が起こら
ず、泡不良が防止される。Ammonia or amine compounds significantly accelerate the polymerization reaction between isocyanate compounds and hydroxy compounds, so when these monomers begin to leak out from the gap between the mold and the gasket and come into contact with ammonia or amine compounds, polymerization occurs in that area. The reaction proceeds rapidly and the resulting resin hardens, eventually sealing the gap. As a result, even if the resin hardens and shrinks within the mold, air will not enter and defective bubbles will be prevented.
モールド型が封止された後は、必ずしもアンモニア又は
アミン化合物の雰囲気中で重合反応を進行させる必要は
なく、通常の条件下に反応を進行させればよい。After the mold is sealed, the polymerization reaction does not necessarily need to proceed in an atmosphere of ammonia or an amine compound, but may proceed under normal conditions.
「実施例」
次に、実施例に基づいて更に詳しく本発明を説明するが
、本発明はこれに限定されるものではない。"Examples" Next, the present invention will be described in more detail based on Examples, but the present invention is not limited thereto.
実施例１
ｍ−キシリレンジイソシアネート８０ｇ１ペンタエリト
リツトテトラキス（３−メルカプトプロピオネート）１
０４ｇ、ジブチル錫ジラウレート（開始剤） ０．２
ｇ及び予め１００°Ｃで７時間加熱した後、放冷した鉱
物油（デュポン社製の商品名Ｚｅｌｅｃ） （離型剤）
０．２ｇを混合し、室温付近で撹拌し、均一にした後、
冷却しながら脱気した。次いで、得られた混合物をレン
ズ成形用のガラスモールドとガスケットとから成るモー
ルド型中に注入し、このモールド型をトリエチルアミン
を入れた容器中に導入し、該アミンの蒸気と接触させな
がら、３０°Ｃで８時間、４０°Ｃで５時間、１１０°
Ｃで８時間重合反応を行った。その際、モールド型の封
止が良好に行われていた。Example 1 m-xylylene diisocyanate 80 g 1 pentaerythritate tetrakis (3-mercaptopropionate) 1
04g, dibutyltin dilaurate (initiator) 0.2
g and mineral oil (trade name: Zelec, manufactured by DuPont) that was preheated at 100°C for 7 hours and then allowed to cool (mold release agent)
After mixing 0.2g and stirring at around room temperature to make it homogeneous,
Degassed while cooling. Next, the obtained mixture was poured into a mold consisting of a glass mold and a gasket for forming a lens, and this mold was introduced into a container containing triethylamine, and was heated at 30° while being in contact with the vapor of the amine. 8 hours at 40°C, 5 hours at 110°C
The polymerization reaction was carried out at C for 8 hours. At that time, the mold was well sealed.
得られたレンズ成形品は、無色透明であり、離型が容易
に行われ、屈折率は１．５９９と高く、比重は１．３４
であり、歪がなく、泡を含まない。The obtained lens molded product is colorless and transparent, can be easily released from the mold, has a high refractive index of 1.599, and has a specific gravity of 1.34.
, no distortion and no bubbles.
「発明の効果」
本発明方法により、モールド型を、重合反応を促進する
化合物又は単量体と急速に反応する化合物の雰囲気中に
置いて、重合反応を行うことにより、モールド型の間隙
から重合混合液から漏出したときに、上記の化合物と接
触し、その部分で重合反応が急速に進行し、樹脂が硬化
し、間隙を封止することができる。その結果、モールド
型内で樹脂の硬化により収縮が起こっても、空気の侵入
が起こらず、成形品の泡不良が防止される。"Effects of the Invention" According to the method of the present invention, the mold is placed in an atmosphere of a compound that promotes the polymerization reaction or a compound that rapidly reacts with the monomer, and the polymerization reaction is carried out through the gap between the molds. When leaked from the mixed liquid, it comes into contact with the above-mentioned compound, and a polymerization reaction rapidly proceeds at that part, hardening the resin and sealing the gap. As a result, even if shrinkage occurs in the mold due to hardening of the resin, air will not enter the mold, and bubble defects in the molded product will be prevented.
特許出願人 旭光学工業株式会社Patent applicant: Asahi Optical Industry Co., Ltd.
Claims (1)
ら構成されるモールド型中に熱硬化性樹脂単量体を主成
分とする混合液を注入し、重合させて樹脂レンズを成形
する方法において、前記の混合液を注入したモールド型
を、重合反応を促進する化合物又は単量体と急速に反応
する化合物の雰囲気中に置いて、重合反応を行うことを
特徴とする樹脂レンズの製造方法。 ２、熱硬化性樹脂単量体としてイソシアネート化合物と
ヒドロキシ化合物を用い、重合反応を促進する化合物又
は単量体と急速に反応する化合物としてアンモニア又は
アミン化合物を用いる請求項１記載の樹脂レンズの製造
方法。 ３、熱硬化性樹脂単量体としてｍ−キシリレンジイソシ
アネートとペンタエリトリットテトラキス（３−メルカ
プトプロピオネート）を用いる請求項２記載の樹脂レン
ズの製造方法。[Claims] A liquid mixture mainly composed of thermosetting resin monomers is injected into a mold consisting of one or two molds and an annular gasket that holds the molds, and is polymerized to produce a resin lens. A method for molding a resin, characterized in that a mold into which the mixed solution is injected is placed in an atmosphere of a compound that promotes the polymerization reaction or a compound that rapidly reacts with the monomer to carry out the polymerization reaction. How to manufacture lenses. 2. Production of a resin lens according to claim 1, in which an isocyanate compound and a hydroxy compound are used as the thermosetting resin monomer, and an ammonia or amine compound is used as a compound that accelerates the polymerization reaction or a compound that rapidly reacts with the monomer. Method. 3. The method for producing a resin lens according to claim 2, wherein m-xylylene diisocyanate and pentaerythritoltetrakis (3-mercaptopropionate) are used as the thermosetting resin monomers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63017611A JPH01192511A (en) | 1988-01-28 | 1988-01-28 | Manufacture of resin lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63017611A JPH01192511A (en) | 1988-01-28 | 1988-01-28 | Manufacture of resin lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01192511A true JPH01192511A (en) | 1989-08-02 |
| JPH0544888B2 JPH0544888B2 (en) | 1993-07-07 |
Family
ID=11948684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63017611A Granted JPH01192511A (en) | 1988-01-28 | 1988-01-28 | Manufacture of resin lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01192511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337960A (en) * | 1992-06-05 | 1993-12-21 | Asahi Optical Co Ltd | Thermal polymerization of molded composite optical part |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205176A (en) * | 1987-02-18 | 1988-08-24 | Iwatani Gas Kk | Method for transfer coating of web with synthetic resin powder |
| JPS647248U (en) * | 1987-06-30 | 1989-01-17 | ||
| JPH06280200A (en) * | 1993-03-23 | 1994-10-04 | Sankoo Kogyo Kk | Hot melt sheet and its production |
-
1988
- 1988-01-28 JP JP63017611A patent/JPH01192511A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205176A (en) * | 1987-02-18 | 1988-08-24 | Iwatani Gas Kk | Method for transfer coating of web with synthetic resin powder |
| JPS647248U (en) * | 1987-06-30 | 1989-01-17 | ||
| JPH06280200A (en) * | 1993-03-23 | 1994-10-04 | Sankoo Kogyo Kk | Hot melt sheet and its production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337960A (en) * | 1992-06-05 | 1993-12-21 | Asahi Optical Co Ltd | Thermal polymerization of molded composite optical part |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0544888B2 (en) | 1993-07-07 |
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Legal Events
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|---|---|---|---|
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