JP2002059439A - Gradient plastic molded body, method and device for producing the same - Google Patents
Gradient plastic molded body, method and device for producing the sameInfo
- Publication number
- JP2002059439A JP2002059439A JP2000251611A JP2000251611A JP2002059439A JP 2002059439 A JP2002059439 A JP 2002059439A JP 2000251611 A JP2000251611 A JP 2000251611A JP 2000251611 A JP2000251611 A JP 2000251611A JP 2002059439 A JP2002059439 A JP 2002059439A
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- monomer
- polymerization
- molded body
- composition
- plastic
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、屈折率や硬度、色
彩等の機能・物性が一方向に連続的（漸次）に変化して
いるプラスチック製の傾斜成形体（傾斜材料）と、その
製造方法及び製造装置に関する。このようなプラスチッ
ク傾斜成形体は、装飾、照明、種々の機器部品等として
利用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inclined plastic molded article (inclined material) whose function and physical properties such as refractive index, hardness and color change continuously (gradually) in one direction, and its production. The present invention relates to a method and a manufacturing apparatus. Such a plastic inclined molded body is used as decoration, lighting, various equipment parts and the like.
【０００２】[0002]
【従来の技術】プラスチック成形体の製造法として、塊
状重合によりモノマーを容器中で重合させ直接成形体と
する方法が知られている。しかし、従来は、モノマー及
び重合開始剤を重合容器に入れた後に重合を開始させる
ので、機能・物性が一方向に傾斜している成形体を得る
ことはできなかった。2. Description of the Related Art As a method for producing a plastic molded article, there is known a method in which a monomer is polymerized in a container by bulk polymerization to directly produce a molded article. However, conventionally, since the polymerization is started after the monomer and the polymerization initiator have been put into the polymerization vessel, it has not been possible to obtain a molded article whose function and physical properties are inclined in one direction.
【０００３】[0003]
【発明が解決しようとする課題】従って、本発明の目的
は、簡易に製造でき、しかも機能や物性の傾斜精度に優
れたプラスチック傾斜成形体と、その製造方法及び製造
装置を提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a plastic inclined molded body which can be easily manufactured and has excellent functions and physical properties, and a method and an apparatus for producing the same. .
【０００４】[0004]
【課題を解決するための手段】本発明者らは、上記課題
を解決するため鋭意検討した結果、モノマーと開始剤と
を含むモノマー組成物を、該モノマー組成物の組成を漸
次に変化させながら、ポンプ等を用いて少量ずつ重合容
器に送液して重合と同時に成形を進行させると、屈折率
等の機能や物性が一方向に連続的に変化したプラスチッ
ク傾斜成形体が簡易に得られることを見出した。本発明
はこのような知見に基づいて完成されたものである。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, a monomer composition containing a monomer and an initiator was formed while gradually changing the composition of the monomer composition. When a small amount of liquid is fed into a polymerization vessel using a pump or the like and the molding is advanced simultaneously with the polymerization, it is possible to easily obtain a plastic inclined molded body whose function and physical properties such as refractive index are continuously changed in one direction. Was found. The present invention has been completed based on such findings.
【０００５】すなわち、本発明は、モノマー組成物の組
成を連続的に変化させながら該モノマー組成物を重合容
器内に逐次的に送液しつつ重合と成形とを同時に進行さ
せることにより得られる、機能が連続的に傾斜したプラ
スチック傾斜成形体を提供する。That is, the present invention is obtained by simultaneously performing polymerization and molding while sequentially feeding the monomer composition into a polymerization vessel while continuously changing the composition of the monomer composition. The present invention provides a plastic inclined molded body whose function is continuously inclined.
【０００６】このプラスチック傾斜成形体において、連
続的に変化させるモノマー組成物の組成は該モノマー組
成物中の複数のモノマーのモノマー比であってもよい。
また、重合容器をそのまま被覆部材として利用した成形
体であってもよい。[0006] In the plastic gradient molded article, the composition of the monomer composition which is continuously changed may be a monomer ratio of a plurality of monomers in the monomer composition.
Also, a molded article using the polymerization container as it is as a covering member may be used.
【０００７】本発明は、また、モノマー組成物の組成を
連続的に変化させながら該モノマー組成物を重合容器内
に逐次的に送液しつつ重合と成形とを同時に進行させ
て、機能が連続的に傾斜したプラスチック成形体を得る
ことを特徴とするプラスチック傾斜成形体の製造方法を
提供する。[0007] The present invention also provides a method for continuously performing the polymerization and the molding while sequentially feeding the monomer composition into the polymerization vessel while continuously changing the composition of the monomer composition. A method for producing a plastic inclined molded body, characterized in that a plastic inclined molded body is obtained.
【０００８】本発明は、さらに、モノマーを重合容器中
で重合させて機能が連続的に傾斜したプラスチック成形
体を直接得るための製造装置であって、モノマーの重合
と重合体の成形とを同時に進行させる重合容器と、前記
重合容器内にモノマー組成物の組成を連続的に変化させ
ながら該モノマー組成物を重合容器内に逐次的に送液す
るモノマー組成物送液手段とを備えていることを特徴と
するプラスチック傾斜成形体製造装置を提供する。[0008] The present invention further provides a production apparatus for directly obtaining a plastic molded article having a continuously inclined function by polymerizing a monomer in a polymerization vessel, wherein the polymerization of the monomer and the molding of the polymer are simultaneously performed. A polymerization vessel to be advanced, and a monomer composition feeding means for sequentially feeding the monomer composition into the polymerization vessel while continuously changing the composition of the monomer composition in the polymerization vessel. The present invention provides an apparatus for producing a tilted plastic article characterized by the following.
【０００９】[0009]
【発明の実施の形態】本発明において、プラスチック傾
斜成形体を構成する樹脂としてはモノマーの重合（特に
塊状重合）により製造可能な樹脂であれば特に限定され
ず、所望する機能や目的に応じて適宜選択できる。その
代表的な例として、例えば、メタクリル系樹脂、アクリ
ル系樹脂、スチレン系樹脂、オレフィン系樹脂、シクロ
オレフィンポリマー、フッ素樹脂、ポリカーボネート、
ポリアミド、ポリアセタール、ポリエステル、ポリフェ
ニレンエーテル、ポリフェニレンスルフィド、ポリアリ
レート、ポリスルホン、ポリエーテルスルホン、ポリエ
ーテルエーテルケトン、セルロース系樹脂、及びこれら
の混合物などが挙げられる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, the resin constituting the plastic gradient molded article is not particularly limited as long as it can be produced by polymerization of a monomer (particularly, bulk polymerization). It can be selected as appropriate. As typical examples, for example, methacrylic resin, acrylic resin, styrene resin, olefin resin, cycloolefin polymer, fluororesin, polycarbonate,
Examples include polyamide, polyacetal, polyester, polyphenylene ether, polyphenylene sulfide, polyarylate, polysulfone, polyether sulfone, polyether ether ketone, cellulose resin, and mixtures thereof.
【００１０】また、前記樹脂を形成するために用いるモ
ノマーとしては、該樹脂を形成可能なモノマーであれば
特に限定されず、所望する機能や目的に応じて広い範囲
の重合性化合物の中から１種又は２種以上を選択して使
用できる。The monomer used to form the resin is not particularly limited as long as it is a monomer capable of forming the resin, and may be selected from a wide range of polymerizable compounds depending on the desired function and purpose. A species or two or more species can be selected and used.
【００１１】例えば、メタクリル系樹脂からなるプラス
チック傾斜成形体を製造する際に用いられるモノマーと
しては、メタクリル酸メチル、メタクリル酸エチル、メ
タクリル酸プロピル、メタクリル酸ブチル、メタクリル
酸イソブチル、メタクリル酸ｔ−ブチル、メタクリル酸
ヘキシル、メタクリル酸オクチル、メタクリル酸２−エ
チルヘキシル、メタクリル酸デシル、メタクリル酸ラウ
リル、メタクリル酸ヘキサデシル等のメタクリル酸アル
キルエステル（特に、メタクリル酸Ｃ1-14アルキルエス
テル）；メタクリル酸トリフルオロイソプロピル、メタ
クリル酸２−メチルシクロヘキシル、メタクリル酸２−
ヒドロキシエチル、メタクリル酸ベンジル、メタクリル
酸フェニル等の他のメタクリル酸エステルなどのメタク
リル酸誘導体が挙げられる。これらのモノマーは単独で
又は２種以上を組み合わせて使用できる。また、成形体
に所望される諸特性に応じて、前記メタクリル酸誘導体
と共重合可能な他の単量体をコモノマーとして用いるこ
ともできる。このような単量体として、例えば、アクリ
ル酸メチル、アクリル酸エチル、アクリル酸ブチル、ア
クリル酸２−エチルヘキシル等のアクリル酸エステル；
スチレン、α−メチルスチレン、ビニルトルエン等のス
チレン系単量体；無水マレイン酸等のカルボキシル基又
は酸無水物基含有単量体；ブタジエン等のオレフィン系
単量体などが例示される。[0011] For example, the monomers used in producing a plastic inclined molded body made of a methacrylic resin include methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, isobutyl methacrylate, and t-butyl methacrylate. Methacrylate alkyl esters (especially, C 1-14 alkyl methacrylate) such as, hexyl methacrylate, octyl methacrylate, 2-ethylhexyl methacrylate, decyl methacrylate, lauryl methacrylate, and hexadecyl methacrylate; trifluoroisopropyl methacrylate , 2-methylcyclohexyl methacrylate, 2-methacrylic acid 2-
Examples include methacrylic acid derivatives such as other methacrylic esters such as hydroxyethyl, benzyl methacrylate, and phenyl methacrylate. These monomers can be used alone or in combination of two or more. Further, other monomers copolymerizable with the methacrylic acid derivative can be used as a comonomer depending on various properties desired for the molded article. As such a monomer, for example, acrylates such as methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate;
Examples include styrene-based monomers such as styrene, α-methylstyrene, and vinyltoluene; carboxyl- or acid-anhydride-group-containing monomers such as maleic anhydride; and olefin-based monomers such as butadiene.
【００１２】他の樹脂からなるプラスチック傾斜成形体
を製造する場合にも、該樹脂の形成に通常用いられる１
種又は２種以上のモノマーが使用される。[0012] In the case of producing a plastic gradient molded body made of another resin, the plastic gradient molded body usually used for forming the resin is used.
One or more monomers are used.
【００１３】重合反応の種類は樹脂の種類に応じて異な
る。例えば、メタクリル系樹脂、スチレン系樹脂などは
ラジカル重合により、ポリカーボネートなどは通常エス
テル交換反応により、ポリエステルなどは通常脱水縮合
反応などにより生成する。The type of polymerization reaction differs depending on the type of resin. For example, methacrylic resins and styrene resins are produced by radical polymerization, polycarbonates and the like are usually produced by a transesterification reaction, and polyesters and the like are usually produced by a dehydration condensation reaction.
【００１４】重合に供するモノマーには、通常、重合開
始剤又は重合触媒、及び必要に応じて連鎖移動剤、架橋
剤、着色剤などの添加剤等が配合される。なお、紫外線
により重合させる場合には重合開始剤を用いなくてもよ
い。前記重合開始剤としては特に限定されず、公知ない
し慣用の重合開始剤を使用できる。その代表的な例とし
て、例えば、２，２′−アゾビスイソブチロニトリル、
ｔ−ブチルペルオキシド、過酸化ベンゾイルなどが挙げ
られる。The monomer to be subjected to the polymerization is usually blended with a polymerization initiator or a polymerization catalyst and, if necessary, additives such as a chain transfer agent, a cross-linking agent and a coloring agent. When polymerizing with ultraviolet rays, a polymerization initiator may not be used. The polymerization initiator is not particularly limited, and a known or commonly used polymerization initiator can be used. Typical examples thereof include, for example, 2,2'-azobisisobutyronitrile,
t-butyl peroxide, benzoyl peroxide and the like.
【００１５】図１は本発明のプラスチック傾斜成形体の
製造に用いる製造装置の一例を示す概略図である。この
装置は、成形体を構成する樹脂の原料であるモノマーＢ
と重合開始剤とを含むモノマー組成物を入れた原料容器
１、成形体を構成する樹脂の他の原料であるモノマーＡ
と重合開始剤とを含むモノマー組成物を入れた原料容器
２、原料容器１内を不活性ガスで置換する場合などに用
いる三方コック３、原料容器２内を不活性ガスで置換す
る場合などに用いる三方コック４、モノマーの重合と重
合体の成形とを同時に進行させる重合容器９、重合容器
９内を不活性ガスで置換する場合などに用いる三方コッ
ク８、原料容器１中のモノマー組成物を原料容器２に送
液するための送液管5aと定量仕込みポンプ６、原料容器
２中のモノマー組成物を重合容器９に送液するための送
液管5bと定量仕込みポンプ７、及び重合容器９内の温度
を調整するための温度調節装置10（恒温槽など）で構成
されている。原料容器２は、内部のモノマー組成物を均
一にするため、通常、攪拌手段を備えている。FIG. 1 is a schematic view showing an example of a manufacturing apparatus used for manufacturing a plastic inclined molded body of the present invention. This apparatus uses a monomer B which is a raw material of a resin constituting a molded body.
Container 1 containing a monomer composition containing a polymer and a polymerization initiator, monomer A, which is another raw material of the resin constituting the molded body
Raw material container 2 containing a monomer composition containing a polymer and a polymerization initiator, a three-way cock 3 used when the inside of the raw material container 1 is replaced with an inert gas, and a case where the inside of the raw material container 2 is replaced with an inert gas. The three-way cock 4 used, the polymerization vessel 9 for simultaneously proceeding the polymerization of the monomer and the molding of the polymer, the three-way cock 8 used for replacing the inside of the polymerization vessel 9 with an inert gas, and the monomer composition in the raw material vessel 1 A liquid supply pipe 5a for supplying liquid to the raw material container 2 and a metering pump 6; a liquid supply pipe 5b for supplying the monomer composition in the raw material container 2 to the polymerization container 9; A temperature control device 10 (a constant temperature bath or the like) for adjusting the temperature inside 9 is constituted. The raw material container 2 is usually provided with a stirring means in order to homogenize the monomer composition inside.
【００１６】原料容器１及び２内のモノマー組成物は、
モノマーの重合等を防止するため、窒素バブリング等に
より脱酸素処理を施すとともに、適宜な冷却装置により
冷却しておくのが好ましい。上記の例では、モノマー送
液手段として送液管5a，5bと定量仕込みポンプ６，７が
使用されているがこれに限定されない。例えば、重力を
利用した滴下方式によりモノマー組成物を送液してもよ
い。The monomer compositions in the raw material containers 1 and 2 are as follows:
In order to prevent polymerization of the monomer and the like, it is preferable to perform a deoxygenation treatment by nitrogen bubbling or the like and to cool the mixture by a suitable cooling device. In the above example, the liquid sending pipes 5a and 5b and the metering pumps 6 and 7 are used as the monomer liquid sending means, but the present invention is not limited to this. For example, the monomer composition may be sent by a dropping method using gravity.
【００１７】本発明では、重合容器９は反応容器として
の機能に加え、成形型としての機能を果たす。従って、
重合容器９としては、目的とするプラスチック傾斜成形
体の形状に対応する内部形状を有している容器が用いら
れる。重合容器９の材質は、特に限定されず、例えば、
ガラス、プラスチック、金属等を使用できる。重合容器
９は、重合終了後該重合容器９からプラスチック傾斜成
形体を取り出すことなくそのまま被覆膜等の被覆部材と
して利用することもできる。In the present invention, the polymerization vessel 9 functions as a mold in addition to the function as a reaction vessel. Therefore,
As the polymerization container 9, a container having an internal shape corresponding to the shape of the target plastic inclined molded body is used. The material of the polymerization container 9 is not particularly limited.
Glass, plastic, metal and the like can be used. The polymerization container 9 can also be used as a coating member such as a coating film without taking out the plastic inclined molded body from the polymerization container 9 after the polymerization is completed.
【００１８】本発明によれば、重合容器の内部形状に対
応した形状の成形体が形成されるので、重合容器の内部
形状を変えることにより種々の形状（例えば、ロッド
状、Ｕ字状、異形等）のプラスチック傾斜成形体を簡易
に製造することができる。本発明の方法は特に長尺形状
のものを製造するのに有利である。According to the present invention, a molded article having a shape corresponding to the internal shape of the polymerization vessel is formed. Therefore, by changing the internal shape of the polymerization vessel, various shapes (for example, a rod shape, a U-shape, and an irregular shape) are formed. Etc.) can be easily manufactured. The method according to the invention is particularly advantageous for producing elongated shapes.
【００１９】重合容器９内は、温度調節装置10により、
モノマーの種類等に応じて重合が進行する温度に調整さ
れる。温度調節装置10としては、公知ないし慣用の温度
調節装置、例えば、熱媒や電熱線等の加熱手段と温度調
節手段とを備えた装置を使用できる。重合容器９は必ず
しも全体を温度調節する必要はなく、例えば重合を進行
させる部位のみを温度調節してもよい。The inside of the polymerization vessel 9 is controlled by a temperature controller 10.
The temperature is adjusted to the temperature at which the polymerization proceeds according to the type of the monomer and the like. As the temperature control device 10, a known or commonly used temperature control device, for example, a device including a heating means such as a heating medium or a heating wire and a temperature control means can be used. It is not always necessary to control the temperature of the polymerization vessel 9 as a whole. For example, the temperature of only the part where the polymerization proceeds may be controlled.
【００２０】本発明の主要な特徴は、モノマー組成物の
組成を連続的に変化させながら該モノマー組成物を重合
容器内に逐次的に送液しつつ重合と成形とを同時に進行
させる点にある。連続的に変化させるモノマー組成物の
組成としては、傾斜させようとする機能や物性（例え
ば、屈折率、分子量、粘着性、硬度等の機械的特性、色
彩など）に応じて適宜選択でき、その非制限的な例とし
て、例えば、重合容器に供するモノマー組成物中におけ
るモノマー比、架橋剤や着色剤などの添加剤の濃度等が
挙げられる。The main feature of the present invention is that the polymerization and the molding proceed simultaneously while the monomer composition is successively fed into a polymerization vessel while the composition of the monomer composition is continuously changed. . The composition of the monomer composition that is continuously changed can be appropriately selected depending on the function or physical property (for example, mechanical properties such as refractive index, molecular weight, adhesiveness, hardness, and color, etc.) to be inclined. Non-limiting examples include, for example, the monomer ratio in the monomer composition provided to the polymerization vessel, the concentration of additives such as a crosslinking agent and a colorant, and the like.
【００２１】より具体的には、上記の例において、原料
容器２中のモノマー組成物（当初はモノマーとしてモノ
マーＡのみを含む）を重合容器９に送液するとともに、
原料容器１中のモノマー組成物（モノマーとしてモノマ
ーＢを含む）を原料容器２中に送液すると、重合容器９
には、重合開始時にはモノマーＡのみを含むモノマー組
成物が供給されるが、漸次モノマーＢとモノマーＡとの
比（Ｂ／Ａ）の大きいモノマー組成物が供給されること
になり、その結果、ポリマーを構成するモノマー組成比
が一方向に傾斜したプラスチック成形体が得られる。な
お、前記モノマーＡ及びモノマーＢは、それぞれ単一成
分であってもよく複数の成分からなっていてもよい。ま
た、モノマーＡとモノマーＢとは共重合可能な組み合わ
せであってもよく、共重合しない組み合わせであっても
よい。前者の場合は共重合比率が連続的に変化した共重
合体からなる傾斜成形体が得られ、後者の場合は、ポリ
マー比率が連続的に変化したポリマーブレンドからなる
傾斜成形体が得られる。このようにして得られる成形体
は、ポリマー組成が傾斜しているので、それに対応し
て、種々の機能、物性が傾斜している。More specifically, in the above example, the monomer composition (initially containing only monomer A as a monomer) in the raw material container 2 is fed to the polymerization container 9 and
When the monomer composition (containing monomer B as a monomer) in the raw material container 1 is fed into the raw material container 2, the polymerization container 9
Is supplied with a monomer composition containing only monomer A at the start of polymerization, but a monomer composition having a large ratio of monomer B to monomer A (B / A) is gradually supplied. As a result, A plastic molded article in which the monomer composition ratio of the polymer is inclined in one direction is obtained. The monomer A and the monomer B may each be a single component or may be composed of a plurality of components. Further, the monomer A and the monomer B may be a copolymerizable combination or a non-copolymerizable combination. In the former case, a gradient molded body composed of a copolymer having a continuously changed copolymerization ratio is obtained, and in the latter case, a gradient molded body composed of a polymer blend having a continuously changed polymer ratio is obtained. Since the polymer obtained in this manner has an inclined polymer composition, various functions and physical properties are correspondingly inclined.
【００２２】また、上記の例において、原料容器１及び
２内のモノマー組成物として、モノマーは同一でも架橋
剤や着色剤等の添加剤の含有量が互いに異なるモノマー
組成物を使用することによっても、同様にして、種々の
機能の傾斜したプラスチック成形体を得ることができ
る。In the above example, the monomer compositions in the raw material containers 1 and 2 may be different from each other by using the same monomer but having different contents of additives such as a crosslinking agent and a coloring agent. Similarly, a plastic molded body having various functions can be obtained.
【００２３】モノマー組成物の送液は、逐次的であれ
ば、連続的及び間欠的の何れであってもよい。モノマー
組成物の送液速度は、重合容器９内における重合速度に
合わせて設定される。この方法では、重合容器９内に送
液されたモノマーから順に重合及び成形が進行し、送液
が終わり重合容器９の最上部における重合と成形が完了
した時点でプラスチック傾斜成形体の形成が完了する。
こうして形成されたプラスチック傾斜成形体は、必要に
応じて、重合容器９の型開き、解体等により取り出され
る。The supply of the monomer composition may be continuous or intermittent as long as it is sequential. The feed rate of the monomer composition is set according to the polymerization rate in the polymerization vessel 9. In this method, the polymerization and molding proceed in order from the monomer fed into the polymerization vessel 9, and the formation of the plastic inclined molded body is completed when the polymerization is completed and the polymerization at the top of the polymerization vessel 9 is completed. I do.
The plastic inclined molded body thus formed is removed by opening the mold of the polymerization container 9 and disassembling it as necessary.
【００２４】上記方法によれば、モノマー及び開始剤
（必要に応じて）が重合により生成した樹脂上に逐次添
加されるので、重合容器９内でのモノマーや開始剤の量
が少ない上、モノマーや開始剤は樹脂の表面にのみ存在
する。そのため、モノマーや開始剤分解物の気化に起因
する樹脂内での気泡の発生を著しく低減できる。According to the above method, since the monomer and the initiator (if necessary) are sequentially added to the resin formed by the polymerization, the amount of the monomer and the initiator in the polymerization vessel 9 is small, And the initiator is present only on the surface of the resin. Therefore, generation of bubbles in the resin due to vaporization of the monomer and the decomposition product of the initiator can be significantly reduced.
【００２５】プラスチック傾斜成形体には、必要に応じ
て、クラッド等、使用目的に応じた部品又は部材が取り
付けられる。本発明のプラスチック傾斜成形体は、例え
ば、機能の傾斜を活かした装飾、照明、種々の機器部品
等として利用できる。Parts or members, such as cladding, depending on the purpose of use are attached to the plastic inclined molded body as required. The plastic inclined molded body of the present invention can be used, for example, as decoration, lighting, various equipment parts, etc., utilizing the functional inclination.
【００２６】[0026]
【発明の効果】本発明のプラスチック傾斜成形体は、煩
雑な工程を経ることなく簡易に製造でき、しかも機能や
物性の傾斜精度に優れている。また、本発明のプラスチ
ック傾斜成形体の製造方法及び製造装置によれば、種々
の機能、物性に関し傾斜精度の高いプラスチック傾斜成
形体を簡易に製造することができる。The tilted plastic article of the present invention can be easily manufactured without complicated steps, and is excellent in tilting accuracy of functions and physical properties. Further, according to the method and apparatus for manufacturing a plastic inclined molded body of the present invention, a plastic inclined molded body having high inclination accuracy with respect to various functions and physical properties can be easily produced.
【００２７】さらに、本発明によれば、モノマーの組み
合わせ等を適宜選択することにより、極めて広範囲の機
能、特性についての傾斜が実現可能である。また、重合
容器の形状を変えることにより多種多様の形状を持つプ
ラスチック傾斜成形体を製造することができる。Further, according to the present invention, an extremely wide range of functions and characteristics can be realized by appropriately selecting a combination of monomers and the like. Further, by changing the shape of the polymerization container, a plastic inclined molded body having various shapes can be manufactured.
【００２８】[0028]
【実施例】以下、実施例により本発明をより具体的に説
明するが、本発明はこれらの実施例により限定されるも
のではない。EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.
【００２９】実施例１ 図１に示す製造装置を用いてプラスチック傾斜成形体を
作製した。２つの三方コック付きナスフラスコを用意
し、一方のナスフラスコ（原料容器２）に、メタクリル
酸メチル１０ｇと過酸化ベンゾイル６５ｍｇを入れ、他
方のナスフラスコ（原料容器１）に、メタクリル酸２−
エチルヘキシル１０ｇと過酸化ベンゾイル３３ｍｇを入
れた。両フラスコ共、窒素バブリングにより溶存酸素を
除去した後、窒素気流下におくとともに、氷浴により冷
却した。内側がフッ素チューブで外側がシリコンチュー
ブである二重構造のチューブの一端を前記原料容器２の
モノマー組成物中に挿入し、他端をチュービングポンプ
のサクション側に取り付けるとともに、上記と同様のチ
ューブの一端を前記チュービングポンプのデリバリ側に
取り付け、他端を三方コックを備えたスリ付き試験管
（重合容器；内径１３ｍｍ）に挿入した。試験管内部は
窒素気流下においた。また、上記と同様のチューブの一
端を前記原料容器１のモノマー組成物中に挿入し、他端
を別のチュービングポンプのサクション側に取り付ける
とともに、上記と同様のチューブの一端をチュービング
ポンプのデリバリ側に取り付け、他端を前記原料容器２
に挿入した。なお、原料容器２中の内容物は常時攪拌子
により攪拌した。上記２台のチュービングポンプを作動
させ、原料容器２中のモノマー組成物を試験管中に４ｍ
ｌ／ｈの流量で、また原料容器１中のモノマー組成物を
原料容器２中に２ｍｌ／ｈの流量でそれぞれ送液し、前
記試験管内で重合と成形とを同時に進行させた。その
間、試験管内部の温度を恒温槽により８０℃に調節し
た。送液が終了して２時間経過後、試験管を室温まで徐
々に冷却した。次いで、試験管を割り、長さ３０ｃｍ、
直径１３ｍｍφのロッド状のプラスチック成形体を取り
出した。Example 1 Using a manufacturing apparatus shown in FIG. 1, a plastic inclined molded body was produced. Two eggplant flasks with a three-way cock were prepared. One eggplant flask (material container 2) was charged with 10 g of methyl methacrylate and 65 mg of benzoyl peroxide, and the other eggplant flask (material container 1) was charged with methacrylic acid 2-
10 g of ethylhexyl and 33 mg of benzoyl peroxide were charged. After removing dissolved oxygen by nitrogen bubbling in both flasks, the flask was placed under a nitrogen stream and cooled with an ice bath. Insert one end of a double-structured tube in which the inside is a fluorine tube and the outside is a silicon tube into the monomer composition of the raw material container 2 and attach the other end to the suction side of the tubing pump. One end was attached to the delivery side of the tubing pump, and the other end was inserted into a test tube with a slot (polymerization container; inner diameter: 13 mm) equipped with a three-way cock. The inside of the test tube was placed under a nitrogen stream. In addition, one end of the same tube as described above is inserted into the monomer composition of the raw material container 1 and the other end is attached to the suction side of another tubing pump, and one end of the same tube as above is connected to the delivery side of the tubing pump. And the other end is connected to the material container 2
Was inserted. In addition, the content in the raw material container 2 was constantly stirred by the stirrer. Activate the two tubing pumps and put the monomer composition in the raw material container 2 into a test tube for 4 m.
The monomer composition in the raw material container 1 was fed into the raw material container 2 at a flow rate of 2 ml / h, and polymerization and molding were simultaneously performed in the test tube. During that time, the temperature inside the test tube was adjusted to 80 ° C. using a thermostat. Two hours after the completion of the liquid feeding, the test tube was gradually cooled to room temperature. Next, the test tube was split, and the length was 30 cm.
A rod-shaped plastic molded body having a diameter of 13 mmφ was taken out.
【００３０】実施例２ 一方のナスフラスコ（原料容器２）に、スチレン１０ｇ
と過酸化ベンゾイル６２ｍｇを入れ、他方のナスフラス
コ（原料容器１）に、メタクリル酸ラウリル１０ｇと過
酸化ベンゾイル２６ｍｇを入れて実験を開始したこと、
及び送液が終了して４時間経過後に試験管を冷却したこ
と以外は、実施例１と同様の操作を行うことにより、プ
ラスチック成形体を得た。Example 2 10 g of styrene was placed in one eggplant flask (raw material container 2).
And 62 mg of benzoyl peroxide, and 10 g of lauryl methacrylate and 26 mg of benzoyl peroxide in the other eggplant flask (raw material container 1) to start the experiment;
A plastic molded article was obtained by performing the same operation as in Example 1 except that the test tube was cooled four hours after the completion of the liquid feeding.
【００３１】評価試験 （１）屈折率測定 実施例で得られた成形体の両末端（試験管の底部及び口
部に相当）と中央部付近から、幅７ｍｍ、長さ１０ｍ
ｍ、厚さ５ｍｍのサンプルを切り出し、各サンプルの７
ｍｍ×１０ｍｍの一面を鏡面に磨いた。これらのサンプ
ルの屈折率の測定をアッベ屈折率計（アタゴ社製）にて
行った。その結果を表１に示す。なお、実施例１で得ら
れた成形体では、両末端のサンプルに屈折率の差はほと
んどなかった。Evaluation Test (1) Measurement of Refractive Index From both ends (corresponding to the bottom and mouth of the test tube) and near the center of the molded article obtained in the example, a width of 7 mm and a length of 10 m
m, a sample having a thickness of 5 mm was cut out, and 7
One side of mm × 10 mm was polished to a mirror surface. The refractive index of these samples was measured with an Abbe refractometer (manufactured by Atago). Table 1 shows the results. In the molded article obtained in Example 1, there was almost no difference in refractive index between the samples at both ends.
【表１】 [Table 1]
【００３２】（２）分子量測定 実施例で得られた成形体の両末端（試験管の底部及び口
部に相当）と中央部付近から適量のサンプルを切り取
り、テトラヒドロフラン（ＴＨＦ）に溶解させた。この
溶液をＧＰＣ（ゲルパーミエーションクロマトグラフィ
ー）（装置：島津製作所製）に供して重量平均分子量を
測定した。結果を表２に示す。(2) Measurement of molecular weight An appropriate amount of a sample was cut from both ends (corresponding to the bottom and mouth of a test tube) and the vicinity of the center of the molded article obtained in the example and dissolved in tetrahydrofuran (THF). This solution was subjected to GPC (gel permeation chromatography) (apparatus: manufactured by Shimadzu Corporation) to measure the weight average molecular weight. Table 2 shows the results.
【表２】 [Table 2]
【００３３】（３）ＦＴ−ＩＲ測定 実施例２で得られた成形体の両末端（試験管の底部及び
口部に相当）と中央部付近から適量のサンプルを切り取
り、ベンゼンに溶解させた後、キャストによりフィルム
化し、ＦＴ−ＩＲ（装置：島津製作所製）測定を行っ
た。結果を図２に示す。(3) FT-IR measurement An appropriate amount of a sample was cut from both ends (corresponding to the bottom and mouth of the test tube) and the vicinity of the center of the molded article obtained in Example 2, and dissolved in benzene. Into a film by casting, and FT-IR (apparatus: manufactured by Shimadzu Corporation) was measured. The results are shown in FIG.
【００３４】以上の結果より、実施例で得られたプラス
チック成形体は長さ方向に構成材料及び特性（機能）が
傾斜していることが分かる。From the above results, it can be seen that the constituent materials and characteristics (functions) of the plastic molded products obtained in the examples are inclined in the length direction.
【図１】本発明のプラスチック傾斜成形体の製造装置の
一例を示す概略図である。FIG. 1 is a schematic view showing an example of an apparatus for producing a plastic inclined molded body according to the present invention.
【図２】実施例２で得られた成形体のＦＴ−ＩＲスペク
トルである。FIG. 2 is an FT-IR spectrum of a molded article obtained in Example 2.
１，２ 原料容器 5a，5b 送液管 ６，７ 定量仕込みポンプ ９ 重合容器 10 温度調節装置 1, 2 Raw material containers 5a, 5b Liquid feed pipe 6, 7 Metering pump 9 Polymerization container 10 Temperature controller
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｃ０８Ｌ 101:00 Ｃ０８Ｌ 101:00 Ｆターム(参考） 4F071 AA09 AA14 AA22 AA26 AA33 AA40 AA43 AA50 AA51 AA54 AA62 AH12 BB01 BB12 4F204 AA13L AA21L AB04 EA03 EB01 EF01 EF27 4J031 CA22 CA34 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // C08L 101: 00 C08L 101: 00 F term (Reference) 4F071 AA09 AA14 AA22 AA26 AA33 AA40 AA43 AA50 AA51 AA54 AA62 AH12 BB01 BB12 4F204 AA13L AA21L AB04 EA03 EB01 EF01 EF27 4J031 CA22 CA34
Claims (5)
せながら該モノマー組成物を重合容器内に逐次的に送液
しつつ重合と成形とを同時に進行させることにより得ら
れる、機能が連続的に傾斜したプラスチック傾斜成形
体。1. A function obtained by simultaneously proceeding polymerization and molding while sequentially feeding the monomer composition into a polymerization vessel while continuously changing the composition of the monomer composition. Inclined plastic molded body inclined to
成が、該モノマー組成物中の複数のモノマーのモノマー
比である請求項１記載のプラスチック傾斜成形体。2. The plastic gradient molding according to claim 1, wherein the composition of the monomer composition which is continuously changed is a monomer ratio of a plurality of monomers in the monomer composition.
した請求項１記載のプラスチック傾斜成形体。3. The plastic inclined molded article according to claim 1, wherein the polymerization container is used as a covering member as it is.
せながら該モノマー組成物を重合容器内に逐次的に送液
しつつ重合と成形とを同時に進行させて、機能が連続的
に傾斜したプラスチック成形体を得ることを特徴とする
プラスチック傾斜成形体の製造方法。4. While continuously changing the composition of the monomer composition, the monomer composition is successively fed into a polymerization vessel while polymerization and molding are simultaneously advanced, and the function is continuously inclined. A method for producing a plastic inclined molded body, which comprises obtaining a plastic molded body.
が連続的に傾斜したプラスチック成形体を直接得るため
の製造装置であって、モノマーの重合と重合体の成形と
を同時に進行させる重合容器と、前記重合容器内にモノ
マー組成物の組成を連続的に変化させながら該モノマー
組成物を重合容器内に逐次的に送液するモノマー組成物
送液手段とを備えていることを特徴とするプラスチック
傾斜成形体製造装置。5. A production apparatus for directly obtaining a plastic molded article having a function that is continuously inclined by polymerizing a monomer in a polymerization vessel, wherein the polymerization of the monomer and the molding of the polymer are simultaneously advanced. And a monomer composition feeding means for sequentially feeding the monomer composition into the polymerization vessel while continuously changing the composition of the monomer composition in the polymerization vessel. Plastic inclined molded body manufacturing equipment.
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|---|---|---|---|
| JP2000251611A JP2002059439A (en) | 2000-08-22 | 2000-08-22 | Gradient plastic molded body, method and device for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000251611A JP2002059439A (en) | 2000-08-22 | 2000-08-22 | Gradient plastic molded body, method and device for producing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002059439A true JP2002059439A (en) | 2002-02-26 |
Family
ID=18740986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000251611A Pending JP2002059439A (en) | 2000-08-22 | 2000-08-22 | Gradient plastic molded body, method and device for producing the same |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9731456B2 (en) | 2013-03-14 | 2017-08-15 | Sabic Global Technologies B.V. | Method of manufacturing a functionally graded article |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62222203A (en) * | 1986-03-24 | 1987-09-30 | Nippon Sheet Glass Co Ltd | Production of optical element composed of synthetic resin |
| JPH06230204A (en) * | 1993-02-05 | 1994-08-19 | Asahi Optical Co Ltd | Production of synthetic resin optical element having refractive index distribution |
| JPH08231731A (en) * | 1995-02-23 | 1996-09-10 | Nitto Denko Corp | Polymer particle and resin composition using same |
-
2000
- 2000-08-22 JP JP2000251611A patent/JP2002059439A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62222203A (en) * | 1986-03-24 | 1987-09-30 | Nippon Sheet Glass Co Ltd | Production of optical element composed of synthetic resin |
| JPH06230204A (en) * | 1993-02-05 | 1994-08-19 | Asahi Optical Co Ltd | Production of synthetic resin optical element having refractive index distribution |
| JPH08231731A (en) * | 1995-02-23 | 1996-09-10 | Nitto Denko Corp | Polymer particle and resin composition using same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9731456B2 (en) | 2013-03-14 | 2017-08-15 | Sabic Global Technologies B.V. | Method of manufacturing a functionally graded article |
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