JP2016132725A - Method for laminating optical member - Google Patents
Method for laminating optical member Download PDFInfo
- Publication number
- JP2016132725A JP2016132725A JP2015008284A JP2015008284A JP2016132725A JP 2016132725 A JP2016132725 A JP 2016132725A JP 2015008284 A JP2015008284 A JP 2015008284A JP 2015008284 A JP2015008284 A JP 2015008284A JP 2016132725 A JP2016132725 A JP 2016132725A
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- liquid resin
- optical member
- photocurable liquid
- resins
- 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
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- 230000003287 optical effect Effects 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000010030 laminating Methods 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 claims abstract description 132
- 239000011342 resin composition Substances 0.000 claims abstract description 122
- 238000000576 coating method Methods 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 13
- 230000001678 irradiating effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 abstract description 69
- 239000011347 resin Substances 0.000 abstract description 69
- 230000008859 change Effects 0.000 abstract description 6
- 238000003475 lamination Methods 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 45
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- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 3
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- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 2
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- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
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- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
本発明は、表示体などの光学部材同士を貼り合せる方法に関する。 The present invention relates to a method for bonding optical members such as a display body together.
光学表示装置に使用される液晶表示体などの表示体は、薄いガラス基板を使用しているために、ガラス基板の保護を目的として、空気層を介して保護パネルが設置されている。また、アプリケーションの拡大に伴い、表示パネルの前面には保護パネルだけでなく、タッチパネルが設置されることが多くなった。 Since a display body such as a liquid crystal display body used in an optical display device uses a thin glass substrate, a protection panel is provided through an air layer for the purpose of protecting the glass substrate. In addition, with the expansion of applications, not only protective panels but also touch panels have been installed on the front of display panels.
近年、空気層が原因で起こる視認性の低下と表示体の補強を同時に満たす方法として、保護パネル又はタッチパネルを直接表示体に貼り合せることが行われている。貼り合せには、シート状の両面粘着シート（特許文献１）や液状樹脂（特許文献２）が用いられる。また、タッチパネルと保護パネルとの貼り合せも同様の方法で行われている。 In recent years, a protective panel or a touch panel is directly bonded to a display body as a method of simultaneously satisfying the reduction in visibility caused by the air layer and the reinforcement of the display body. For the bonding, a sheet-like double-sided pressure-sensitive adhesive sheet (Patent Document 1) and a liquid resin (Patent Document 2) are used. Also, the touch panel and the protective panel are bonded together in the same manner.
また映像技術の多様化に伴い三次元映像（いわゆる３Ｄ映像）や三次元画像（いわゆる３Ｄ画像）を表示する光学表示装置（以下、３Ｄ表示装置ともいう）が増えているが、これらの光学表示装置の製造において、表示体、保護パネル、タッチパネルなどの光学部品構成部材の貼り合せに両面粘着シートや液状樹脂が用いられている。 In addition, with the diversification of video technology, optical display devices (hereinafter also referred to as 3D display devices) that display 3D images (so-called 3D images) and 3D images (so-called 3D images) are increasing. In manufacturing the device, a double-sided pressure-sensitive adhesive sheet or a liquid resin is used for bonding optical component components such as a display body, a protection panel, and a touch panel.
これら光学部品構成部材の貼り合せ工程は、通常、一方の部材に液状樹脂などの接着剤を塗工して、もう一方の部材を接着剤が塗工された面に貼り合せ、液状樹脂をエネルギー線の照射により硬化させることで行われる。しかし、液状樹脂を用いた貼り合せ工程においては、液状樹脂に流動性があるため、一方の部材への適用からもう一方の部材との貼り合せの間に、樹脂が塗工面から流れ出し、液垂れが起こる場合がある。また、液状樹脂は貼り合せの際に部材の接着面からはみ出すことがあり、垂れたりはみ出したりした樹脂は、製品の外観に悪影響を与える。 In the bonding process of these optical component constituent members, usually, an adhesive such as a liquid resin is applied to one member, and the other member is bonded to the surface coated with the adhesive, and the liquid resin is used as an energy. It is performed by curing by irradiation of a line. However, in the bonding process using a liquid resin, since the liquid resin has fluidity, the resin flows out from the coated surface between application to one member and bonding to the other member. May happen. In addition, the liquid resin sometimes protrudes from the bonding surface of the member at the time of bonding, and the resin that drips or protrudes adversely affects the appearance of the product.
また、液状樹脂を貼り合せに用いた場合、貼り合せ後に位置ずれや気泡、異物の混入などの不具合があったときには、硬化前であればリペアすることはできるが、硬化後では剥離の際に部材が破損したり、剥離後に硬化した樹脂を除去することが困難となってしまう。 In addition, when liquid resin is used for bonding, if there is a problem such as misalignment, bubbles, or foreign matter after bonding, it can be repaired before curing, but after curing, it can be peeled off. The member is damaged, or it becomes difficult to remove the cured resin after peeling.
一方で、塗工した液状樹脂を一旦ある程度硬化させてからもう一方の部材と貼り合せることも行われているが（特許文献３）、この場合でも、部材へ塗工した後、液状樹脂を硬化するまでの間に液垂れが生じたり、表面の形状が変化し均一な状態でなくなるといった問題を完全に回避することはできない。液状樹脂層の形状変化や気泡の発生は製品の見た目に悪影響を与えるのみならず、表示体の視認性やタッチパネルの操作性にも影響し、更には部材同士の接着性を低下させて光学部品自体の機械的強度を低下させる要因ともなる。 On the other hand, the coated liquid resin is once cured to some extent and then bonded to the other member (Patent Document 3). Even in this case, the liquid resin is cured after being applied to the member. In the meantime, it is impossible to completely avoid problems such as dripping of liquid or the change of the shape of the surface and non-uniformity. Changes in the shape of the liquid resin layer and the generation of bubbles not only adversely affect the appearance of the product, but also affect the visibility of the display and the operability of the touch panel. It also becomes a factor of reducing the mechanical strength of itself.
エネルギー線硬化型液状樹脂で貼り合せる表示体サイズは、モバイルサイズからモニター又はＴＶサイズまで行われるように、年々大きくなっており、このような表示体を接着するために液状樹脂の塗工面積が大きくなると、液垂れや気泡の問題は更に起こりやすくなる。また、モニターやＴＶサイズの表示体の製造においては、巨大なＵＶ装置（例えば、メタハラ光源又はＬＥＤ光源を採用するコンベア式又はバッチ式エリア照射用紫外線照射装置）を必要とするため、生産設備費の上昇、ライン面積の拡大、ＵＶプロセス時間の増加も課題となっている。 The size of the display body to be bonded with the energy ray curable liquid resin is increasing year by year so that it can be performed from the mobile size to the monitor or TV size, and in order to bond such a display body, the coating area of the liquid resin is large. As it becomes larger, the problem of dripping and bubbles is more likely to occur. In addition, in manufacturing a monitor or a TV-sized display, a huge UV device (for example, a conveyor-type or batch-type ultraviolet irradiation device for irradiating a meta-hara light source or an LED light source) is required. Increases in line width, line area, and UV process time are also issues.
本発明が解決しようとする課題は、光学部材の貼り合せにおいて、液状樹脂の塗布後硬化するまでの時間経過による端部の液垂れ、塗布面の形状変化、樹脂のはみ出し、気泡残留などの外観不良が起こらない光学部材の貼り合せ方法を提供することである。 The problems to be solved by the present invention are as follows. In the bonding of optical members, the appearance of liquid dripping at the end due to the passage of time from application of liquid resin to curing, change in shape of application surface, protrusion of resin, residual bubbles, etc. An object of the present invention is to provide a method for bonding optical members that does not cause defects.
本発明は、以下を内容とする。
［１］光学部材（ｉ）と他の光学部材（ｉｉ）とを貼り合せる方法であって、
（Ａ）光硬化性液状樹脂組成物を光照射により硬化させて、光学部材（ｉ）上に前記光硬化性液状樹脂組成物の硬化物を作成する工程、及び
（Ｂ）前記光学部材（ｉ）上に作成した前記硬化物の上に光学部材（ｉｉ）を貼り合せる工程
を含み、前記（Ａ）工程における光照射が、光硬化性液状樹脂組成物を光学部材（ｉ）に塗工するのと同時であるか、前記光硬化性液状樹脂組成物が前記光学部材（ｉ）に接触する直前であるか、又は前記光学部材（ｉ）に前記光硬化性液状樹脂組成物による塗工面が形成された直後に行われる方法。
［２］前記（Ａ）工程において、前記光学部材（ｉ）に前記光硬化性液状樹脂組成物による塗工面が形成された直後に前記光硬化性液状樹脂組成物に光照射し、前記光硬化性液状樹脂組成物を硬化させ、前記光学部材（ｉ）上に硬化物を作製する工程を含む、前記［１］記載の方法。
［３］前記（Ａ）工程において、前記光学部材（ｉ）に前記光硬化性液状樹脂組成物が接触する直前に前記光硬化性液状樹脂組成物に光照射し、前記光硬化性液状樹脂組成物を硬化させ、前記光学部材（ｉ）上に硬化物を作製する工程を含む、前記［１］記載の方法。
［４］前記（Ａ）工程における硬化物の硬化率が４０％以上である、前記［１］〜［３］のいずれかに記載の方法。
［５］前記（Ａ）工程における硬化物の硬化率が９０％以上である、前記［１］〜［４］のいずれかに記載の方法。
［６］前記（Ｂ）工程の後に更に光照射する工程を含む、前記［１］〜［５］のいずれかに記載の方法。
The present invention includes the following.
[1] A method of bonding an optical member (i) and another optical member (ii),
(A) a step of curing the photocurable liquid resin composition by light irradiation to produce a cured product of the photocurable liquid resin composition on the optical member (i), and (B) the optical member (i). ) Including the step of bonding the optical member (ii) onto the cured product prepared above, and the light irradiation in the step (A) applies the photocurable liquid resin composition to the optical member (i). Or just before the photocurable liquid resin composition comes into contact with the optical member (i), or the optical member (i) has a coating surface with the photocurable liquid resin composition. A method performed immediately after being formed.
[2] In the step (A), the photocurable liquid resin composition is irradiated with light immediately after the coated surface of the photocurable liquid resin composition is formed on the optical member (i), and the photocuring is performed. The method of the above-mentioned [1], comprising a step of curing the curable liquid resin composition and producing a cured product on the optical member (i).
[3] In the step (A), the photocurable liquid resin composition is irradiated with light just before the photocurable liquid resin composition contacts the optical member (i), and the photocurable liquid resin composition is used. The method according to [1], including a step of curing a product and producing a cured product on the optical member (i).
[4] The method according to any one of [1] to [3], wherein the cured product in the step (A) has a curing rate of 40% or more.
[5] The method according to any one of [1] to [4], wherein the cured product in the step (A) has a curing rate of 90% or more.
[6] The method according to any one of [1] to [5], further including a step of irradiating light after the step (B).
本発明によれば、光硬化型液状樹脂組成物を介して光学部材同士を貼り合せて光学部品を製造するプロセスにおいて、液状樹脂を硬化する工程が液状樹脂を塗工する工程と同時又はその直前もしくは直後に行われることで、塗工の段階又は塗工から間もない時点で樹脂の形状が保持されるため、上記課題を解決した光学部材の貼り合せ方法を提供することができる。 According to the present invention, in the process of manufacturing an optical component by bonding optical members together via a photocurable liquid resin composition, the step of curing the liquid resin is the same as or just before the step of applying the liquid resin. Or since it is performed immediately after, the shape of resin is hold | maintained at the time of application | coating stage or the time just after application | coating, the bonding method of the optical member which solved the said subject can be provided.
本発明の方法は、光学部材（ｉ）と他の光学部材（ｉｉ）とを貼り合せる方法であって、
（Ａ）光硬化性液状樹脂組成物を光照射により硬化させて、光学部材（ｉ）上に前記光硬化性液状樹脂組成物の硬化物を作成する工程、及び
（Ｂ）前記光学部材（ｉ）上に作成した前記硬化物の上に光学部材（ｉｉ）を貼り合せる工程
を含み、前記（Ａ）工程における光照射が、光硬化性液状樹脂組成物を光学部材（ｉ）に塗工するのと同時であるか、前記光硬化性液状樹脂組成物が前記光学部材（ｉ）に接触する直前であるか、又は前記光学部材（ｉ）に前記光硬化性液状樹脂組成物による塗工面が形成された直後に行われる方法である。
The method of the present invention is a method of bonding an optical member (i) and another optical member (ii),
(A) a step of curing the photocurable liquid resin composition by light irradiation to produce a cured product of the photocurable liquid resin composition on the optical member (i), and (B) the optical member (i). ) Including the step of bonding the optical member (ii) onto the cured product prepared above, and the light irradiation in the step (A) applies the photocurable liquid resin composition to the optical member (i). Or just before the photocurable liquid resin composition comes into contact with the optical member (i), or the optical member (i) has a coating surface with the photocurable liquid resin composition. This method is performed immediately after the formation.
即ち、本発明の方法では、工程（Ａ）において、光硬化性液状樹脂組成物を光学部材に塗工し、並行して当該光硬化性液状樹脂組成物を硬化させ、その後工程（Ｂ）において、光学部材（ｉ）及び（ｉｉ）を貼り合せる点に特徴がある。 That is, in the method of the present invention, in the step (A), the photocurable liquid resin composition is applied to the optical member, and the photocurable liquid resin composition is cured in parallel, and then in the step (B). The optical members (i) and (ii) are characterized in that they are bonded together.
本発明の方法によれば、工程（Ａ）により、塗工から時間を経ることなく、又は塗工面の形成時点で光硬化性樹脂組成物が光学部材（ｉ）上で形状及び接着性を維持できる程度に硬化しているので、液垂れや塗布面の形状変化が起こらず、工程（Ｂ）において光学部材（ｉｉ）を貼り合せる際にも樹脂のはみ出しや気泡の残留が起こらなくなるものと考えられる。 According to the method of the present invention, by the step (A), the photocurable resin composition maintains its shape and adhesiveness on the optical member (i) without passing time from coating or at the time of forming the coated surface. Since it is hardened as much as possible, no dripping or shape change of the coated surface occurs, and it is thought that no resin sticking out or bubbles remain even when the optical member (ii) is bonded in the step (B). It is done.
本発明の方法における各工程について説明する。
本発明の方法では、後述する光硬化性液状樹脂組成物を部材に塗布する塗工機と、光硬化性液状樹脂組成物が硬化する反応を進行させるエネルギー線を照射する光照射装置を用いることができる。塗工の方法としては、ディスペンス方式やコーター方式、印刷方式などがあり、塗工の分野において従来用いられている装置を用いることができる。
Each step in the method of the present invention will be described.
In the method of the present invention, a coating machine for applying a photocurable liquid resin composition, which will be described later, to a member, and a light irradiation device for irradiating energy rays that promote the reaction of curing the photocurable liquid resin composition are used. Can do. As a coating method, there are a dispensing method, a coater method, a printing method, and the like, and an apparatus conventionally used in the field of coating can be used.
光照射装置により照射するエネルギー線としては、電子線、Ｘ線、紫外線、低波長領域の可視光などエネルギーの高い電子線又は電磁波が挙げられるが、装置の簡便性及び普及性から紫外線が好ましい。前述の光照射装置と塗工機とは、後述する工程（Ａ）の操作を可能とする配置であればそれらの位置関係は問わない。塗工機と光照射装置が近接するか、又は実質的に同じ場所に位置するように配置すれば、生産ライン面積を抑えられるという利点がある。 Examples of the energy rays irradiated by the light irradiation device include electron beams, X-rays, ultraviolet rays, electron beams with high energy such as visible light in a low wavelength region, or electromagnetic waves, but ultraviolet rays are preferable from the viewpoint of simplicity and spread of the device. The light irradiation apparatus and the coating machine are not limited in their positional relationship as long as they can be operated in the step (A) described later. If the coating machine and the light irradiating device are arranged close to each other or located at substantially the same place, there is an advantage that the production line area can be suppressed.
工程（Ａ）は、光硬化性液状樹脂組成物を光照射により硬化させて、光学部材（ｉ）上に前記光硬化性液状樹脂組成物の硬化物を作成する工程であって、前記光照射工程が、光硬化性液状樹脂組成物を光学部材（ｉ）に塗工するのと同時であるか、前記光硬化性液状樹脂組成物が前記光学部材（ｉ）に接触する直前であるか、又は前記光学部材（ｉ）に前記光硬化性液状樹脂組成物による塗工面が形成された直後に行われる工程である。すなわち、本工程は、光硬化性液状樹脂組成物の塗工と並行して光照射による硬化を行う、一連の工程である。 The step (A) is a step of curing the photocurable liquid resin composition by light irradiation to produce a cured product of the photocurable liquid resin composition on the optical member (i), and the light irradiation. Whether the process is simultaneous with the application of the photocurable liquid resin composition to the optical member (i), or just before the photocurable liquid resin composition contacts the optical member (i), Or it is a process performed immediately after the coating surface by the said photocurable liquid resin composition was formed in the said optical member (i). That is, this step is a series of steps for performing curing by light irradiation in parallel with the application of the photocurable liquid resin composition.
［光学部材］
光学部材（ｉ）及び（ｉｉ）としては、光学部品を構成する部材であれば特に限定されず、保護パネル、タッチセンサーパネル、表示体、３Ｄシステム（視差バリアガラス、視差バリアフィルム、視差バリアＬＣＤ、レンズユニット）などが挙げられる。これらの光学部材（ｉ）及び（ｉｉ）は、透明板であってもよく、遮光インクによって形成される遮光部を有していてもよい。遮光インクは、公知の遮光インクであってよく、例えば、水性インク、溶剤型インク、熱硬化型インク、エネルギー線硬化性インクが挙げられる。ここで、遮光部とは、例えば、保護パネルの遮光インク下と表示体又はタッチセンサーパネルとによって、あるいはタッチセンサーパネルの遮光インク下と表示体とによってできるような、光が届かない箇所をいう。
[Optical member]
The optical members (i) and (ii) are not particularly limited as long as they are members constituting optical components, and include a protective panel, a touch sensor panel, a display body, and a 3D system (parallax barrier glass, parallax barrier film, parallax barrier LCD). , Lens unit) and the like. These optical members (i) and (ii) may be a transparent plate or may have a light shielding portion formed by a light shielding ink. The light-shielding ink may be a known light-shielding ink, and examples thereof include water-based inks, solvent-type inks, thermosetting inks, and energy ray-curable inks. Here, the light shielding portion refers to a portion where light does not reach, for example, which can be formed by the display panel or touch sensor panel under the light shielding ink of the protective panel or by the display body or the light shielding ink of the touch sensor panel. .
［光硬化性液状樹脂組成物］
光硬化性液状樹脂組成物としては、ラジカル反応硬化型樹脂組成物、カチオン反応硬化型樹脂組成物、アニオン反応硬化型樹脂組成物、重縮合・重付加反応硬化型樹脂組成物などが例示できる。光硬化性液状樹脂組成物としては、エネルギー線による硬化の速度などの観点から、ラジカル反応硬化型樹脂組成物が好ましい。光硬化性液状樹脂組成物には、硬化の反応機構が異なる樹脂同士を含む、２種類以上の樹脂を混合して用いてもよい。
[Photocurable liquid resin composition]
Examples of the photocurable liquid resin composition include a radical reaction curable resin composition, a cation reaction curable resin composition, an anion reaction curable resin composition, and a polycondensation / polyaddition reaction curable resin composition. As the photocurable liquid resin composition, a radical reaction curable resin composition is preferable from the viewpoint of the curing rate by energy rays. In the photocurable liquid resin composition, two or more kinds of resins including resins having different curing reaction mechanisms may be mixed and used.
ラジカル反応硬化型樹脂組成物に使用されるラジカル反応硬化型樹脂としては、（メタ）アクリル樹脂、シリコーン樹脂、不飽和ポリエステル樹脂、及びビニルエステル樹脂が挙げられる。好ましくは（メタ）アクリル樹脂、シリコーン樹脂、及びビニルエステル樹脂であり、より好ましくは（メタ）アクリル樹脂である。ここで、（メタ）アクリル樹脂として、具体的には、２−エチルヘキシル（メタ）アクリレート、ｎ−ブチル（メタ）アクリレート、ｉ−ブチル（メタ）アクリレート、ｔ−ブチル（メタ）アクリレート、ラウリルアクリレート等のアルキル（メタ）アクリレート；メトキシエチル（メタ）アクリレート等のアルコキシ置換アルキル（メタ）アクリレート；２−ヒドロキシエチル（メタ）アクリレート、２−ヒドロキシプロピル（メタ）アクリレート、２−ヒドロキシブチル（メタ）アクリレート、４−ヒドロキシブチル（メタ）アクリレート等のヒドロキシ置換アルキル（メタ）アクリレート；ベンジル（メタ）アクリレート、フェニル（メタ）アクリレート等；エチレングリコールジ（メタ）アクリレート、ジエチレングリコールジ（メタ）アクリレート、トリエチレングリコールジ（メタ）アクリレート、１，３−ブチレングリコールジ（メタ）アクリレート、１，４−ブチレングリコールジ（メタ）アクリレート、ネオペンチルグリコールジ（メタ）アクリレート、１，６−ヘキサンジオールジ（メタ）アクリレート等のジ（メタ）アクリレート；ジシクロペンテニルオキシエチル（メタ）アクリレート、ノルボネン（メタ）アクリレート、ジシクロペンタニル（メタ）アクリレート、イソボルニル（メタ）アクリレート；（水添）ポリイソプレン（メタ）アクリレート、（水添）ポリブタジエン（メタ）アクリレート、ＵＶ３６３０ＩＤ８０（日本合成化学工業（株）製）のようなポリウレタンアクリレートなどの（メタ）アクリレート変性オリゴマー又は（メタ）アクリレート変性ポリマーが挙げられる。 Examples of the radical reaction curable resin used in the radical reaction curable resin composition include (meth) acrylic resins, silicone resins, unsaturated polyester resins, and vinyl ester resins. Preferred are (meth) acrylic resins, silicone resins, and vinyl ester resins, and more preferred are (meth) acrylic resins. Here, as (meth) acrylic resin, specifically, 2-ethylhexyl (meth) acrylate, n-butyl (meth) acrylate, i-butyl (meth) acrylate, t-butyl (meth) acrylate, lauryl acrylate, and the like Alkyl (meth) acrylates; alkoxy-substituted alkyl (meth) acrylates such as methoxyethyl (meth) acrylate; 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, Hydroxy-substituted alkyl (meth) acrylates such as 4-hydroxybutyl (meth) acrylate; benzyl (meth) acrylate, phenyl (meth) acrylate, etc .; ethylene glycol di (meth) acrylate, diethylene glycol di (me ) Acrylate, triethylene glycol di (meth) acrylate, 1,3-butylene glycol di (meth) acrylate, 1,4-butylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,6-hexane Di (meth) acrylates such as diol di (meth) acrylate; dicyclopentenyloxyethyl (meth) acrylate, norbornene (meth) acrylate, dicyclopentanyl (meth) acrylate, isobornyl (meth) acrylate; (hydrogenated) poly (Meth) acrylate modified oligomers such as isoprene (meth) acrylate, (hydrogenated) polybutadiene (meth) acrylate, polyurethane acrylate such as UV3630ID80 (manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) or (meth) acrylate Include rate-modified polymers.
カチオン反応硬化型樹脂組成物に使用されるカチオン反応硬化型樹脂としては、エポキシ樹脂、オキセタン化合物、ビニルエーテル樹脂、及びポリスチレン系樹脂が挙げられる。好ましくは、エポキシ樹脂、及びオキセタン化合物である。 Examples of the cation reaction curable resin used in the cation reaction curable resin composition include epoxy resins, oxetane compounds, vinyl ether resins, and polystyrene resins. An epoxy resin and an oxetane compound are preferable.
アニオン反応硬化型樹脂組成物に使用されるアニオン反応硬化型樹脂としては、エポキシ樹脂、（メタ）アクリル樹脂、シアノアクリレート系樹脂、オキセタン化合物、ポリスチレン系樹脂、及びポリエチレン系樹脂が挙げられる。好ましくは、エポキシ樹脂、（メタ）アクリル樹脂、シアノアクリレート系樹脂、及びポリスチレン系樹脂であり、より好ましくは、シアノアクリレート系樹脂、及びポリスチレン系樹脂である。 Examples of the anion reaction curable resin used in the anion reaction curable resin composition include epoxy resins, (meth) acrylic resins, cyanoacrylate resins, oxetane compounds, polystyrene resins, and polyethylene resins. An epoxy resin, a (meth) acrylic resin, a cyanoacrylate resin, and a polystyrene resin are preferable, and a cyanoacrylate resin and a polystyrene resin are more preferable.
重縮合・重付加反応硬化型樹脂組成物に使用される重縮合反応硬化型樹脂としては、ポリアミド樹脂、ポリイミド樹脂、ポリエステル樹脂、ポリカーボネート樹脂、及びシリコーン樹脂が挙げられる。好ましくは、ポリアミド樹脂、ポリエステル樹脂、ポリカーボネート樹脂、及びシリコーン樹脂であり、より好ましくは、ポリエステル樹脂、ポリカーボネート樹脂、及びシリコーン樹脂である。 Examples of the polycondensation reaction curable resin used in the polycondensation / polyaddition reaction curable resin composition include polyamide resins, polyimide resins, polyester resins, polycarbonate resins, and silicone resins. Polyamide resins, polyester resins, polycarbonate resins, and silicone resins are preferable, and polyester resins, polycarbonate resins, and silicone resins are more preferable.
光硬化性液状樹脂組成物中に、エネルギー開裂型開始剤を含めることができる。エネルギー開裂型開始剤として、例えば、光開始剤として、２，６−ジメチルベンゾイルジフェニルフォスフィンオキサイド、２，４，６−トリメチルベンゾイルジフェニルフォスフィンオキサイド、２，６−ジクロルベンゾイルジフェニルフォスフィンオキサイド、及び２，６−ジメトキシベンゾイルジフェニルフォスフィンオキサイドなどのアシルフォスフィンオキサイド類；２，４，６−トリメチルベンゾイルフェニルフォスフィン酸メチルエステルなどのアシルフォスフィン酸エステル類；４−（２−ヒドロキシエトキシ）フェニル（２−ヒドロキシ２−２プロピル）ケトン、２，２−ジメトキシ−１，２−ジフェニルエタン−１−オン、２−メチル−１，４−（メチルチオ）フェニル−２−モルフォリノプロパン−１−オン、１−フェニル−２−ヒドロキシ−２−メチルプロパン−１−オン、１−ヒドロキシシクロヘキシル−フェニルケトン、４−ジフェノキシジクロロアセトフェノン、ジエトキシアセトフェノン、１−（４−イソプロピルフェニル）−２−ヒドロキシ−２−メチルプロパン−１−オンなどのアセトフェノン系化合物；ベンゾフェノン、ベンゾイル安息香酸メチル、４−フェニルベンゾフェノン、ヒドロキシベンゾフェノン３，３’−ジメチル−４−メトキシベンゾフェノン、ジフェノキシベンゾフェノンなどのベンゾフェノン系化合物、１，１０−ジアミノデカン、４，４’−トリメチレンジピペラジン、カルバメート類及びその誘導体、コバルト−アミン錯体類、アミノオキシイミノ類、アンモニウムボレート類、アリールジアゾニウム塩、ジアリールハロニウム塩、トリアリールスルホニウム塩、トリホスホニウム塩、鉄アレン錯体、チタノセン錯体、アリールシラノールアルミニウム錯体などのイオン性光酸発生剤；ニトロベンジルエステル、スルホン酸誘導体、リン酸エステル、フェノールスルホン酸エステル、ジアゾナフトキノン、Ｎ−ヒドロキシイミドスルホナートなどの非イオン性光酸発生剤などが挙げられる。市販品として、Ｉ−１８４（ＢＡＳＦ社製、１−ヒドロキシシクロヘキシル−フェニルケトン）、ルシリンＴＰＯ（ＢＡＳＦ社製、２，４，６−トリメチルベンゾイルジフェニルフォスフィンオキサイド）が挙げられる。これらの光開始剤は、１種類、又は２種類以上を組み合わせて使用してもよい。
光開始剤の量は、光硬化性液状樹脂組成物１００質量部に対して、０．０１〜２０質量部であるのが好ましく、０．１〜１５質量部であるのがより好ましく、０．５〜１０質量部であるのが更に好ましい。
An energy-cleavable initiator can be included in the photocurable liquid resin composition. As an energy cleavage type initiator, for example, as a photoinitiator, 2,6-dimethylbenzoyldiphenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 2,6-dichlorobenzoyldiphenylphosphine oxide, And acylphosphine oxides such as 2,6-dimethoxybenzoyldiphenylphosphine oxide; acylphosphine esters such as 2,4,6-trimethylbenzoylphenylphosphinic acid methyl ester; 4- (2-hydroxyethoxy) Phenyl (2-hydroxy2-2propyl) ketone, 2,2-dimethoxy-1,2-diphenylethane-1-one, 2-methyl-1,4- (methylthio) phenyl-2-morpholinopropane-1- ON, 1- Enyl-2-hydroxy-2-methylpropan-1-one, 1-hydroxycyclohexyl-phenyl ketone, 4-diphenoxydichloroacetophenone, diethoxyacetophenone, 1- (4-isopropylphenyl) -2-hydroxy-2-methyl Acetophenone compounds such as propan-1-one; benzophenone, methyl benzoylbenzoate, 4-phenylbenzophenone, benzophenone compounds such as hydroxybenzophenone 3,3′-dimethyl-4-methoxybenzophenone, diphenoxybenzophenone, 1,10- Diaminodecane, 4,4′-trimethylenedipiperazine, carbamates and derivatives thereof, cobalt-amine complexes, aminooxyiminos, ammonium borates, aryldiazonium salts, diaryls Ionic photoacid generators such as halonium salts, triarylsulfonium salts, triphosphonium salts, iron allene complexes, titanocene complexes, arylsilanol aluminum complexes; nitrobenzyl esters, sulfonic acid derivatives, phosphate esters, phenolsulfonate esters, diazo Nonionic photoacid generators such as naphthoquinone and N-hydroxyimide sulfonate are listed. Examples of commercially available products include I-184 (BASF, 1-hydroxycyclohexyl-phenylketone) and Lucillin TPO (BASF, 2,4,6-trimethylbenzoyldiphenylphosphine oxide). These photoinitiators may be used alone or in combination of two or more.
The amount of the photoinitiator is preferably 0.01 to 20 parts by mass, more preferably 0.1 to 15 parts by mass with respect to 100 parts by mass of the photocurable liquid resin composition. More preferably, it is 5-10 mass parts.
光硬化性液状樹脂組成物に、エネルギー開裂型開始剤を含めておく場合、光硬化性液状樹脂組成物に含まれる樹脂として、アクリル系樹脂、エポキシ系樹脂、シリコーン系樹脂組成物が挙げられる。エネルギー開裂型開始剤の量は、特に限定されないが、上記した光開始剤の量が挙げられる。 When the energy-cleavable initiator is included in the photocurable liquid resin composition, examples of the resin contained in the photocurable liquid resin composition include acrylic resins, epoxy resins, and silicone resin compositions. The amount of the energy-cleavable initiator is not particularly limited, but examples include the amount of the photoinitiator described above.
光硬化性液状樹脂組成物には、光学透明性安定性の観点から、熱・光安定剤を配合することができる。熱・光安定剤としては、ヒンダードフェノール系酸化防止剤、リン系加工熱安定剤、ヒドロキシルアミン系加工熱安定剤、ベンゾトリアゾール系紫外線吸収剤、トリアジン系紫外線吸収剤、ヒンダードアミン系光安定剤、及びベンゾエート系紫外線吸収剤が挙げられる。好ましくは、ヒンダードフェノール系酸化防止剤、リン系加工熱安定剤、及びヒンダードアミン系光安定剤であり、より好ましくは、ヒンダードフェノール系酸化防止剤である。 From the viewpoint of optical transparency stability, a heat / light stabilizer can be added to the photocurable liquid resin composition. Heat and light stabilizers include hindered phenol antioxidants, phosphorus processing heat stabilizers, hydroxylamine processing heat stabilizers, benzotriazole UV absorbers, triazine UV absorbers, hindered amine light stabilizers, And benzoate-based ultraviolet absorbers. Preferred are hindered phenol antioxidants, phosphorus processing heat stabilizers, and hindered amine light stabilizers, and more preferred are hindered phenol antioxidants.
ここで、ヒンダードフェノール系酸化防止剤としては、具体的には、ペンタエリスリトールテトラキス［３−（３，５−ジ−tert−ブチル−４−ヒドロキシフェニル］プロピオネート）、２，２−メチレン−ビス（４−メチル−６−ターシャリーブチルフェノール）、カテコール、ピクリン酸、ターシャリーブチルカテコール、２，６−ジターシャリーブチル−ｐ−クレゾール、及び４，４’−チオビス［エチレン（オキシ）（カルボニル）（エチレン）］ビス［２，６−ビス（１，１−ジメチルエチル）フェノール］が挙げられる。これらの酸化防止剤は、１種類、又は２種類以上を組み合わせて使用してもよい。酸化防止剤は市販品として、イルガノックス１０１０（Ｉ’ｎｏｘ１０１０）（ＢＡＳＦ社製）が挙げられる。 Here, as the hindered phenol-based antioxidant, specifically, pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl] propionate), 2,2-methylene-bis (4-methyl-6-tert-butylphenol), catechol, picric acid, tertiary butyl catechol, 2,6-ditertiary butyl-p-cresol, and 4,4′-thiobis [ethylene (oxy) (carbonyl) ( Ethylene)] bis [2,6-bis (1,1-dimethylethyl) phenol]. These antioxidants may be used alone or in combination of two or more. As an antioxidant, Irganox 1010 (I'nox 1010) (manufactured by BASF) is mentioned as a commercial product.
熱・光安定剤の量は、光硬化性液状樹脂組成物に対して、好ましくは０．０１〜１５質量％であり、より好ましくは０．１〜１０質量％であり、更に好ましくは０．５〜５質量％である。 The amount of the heat / light stabilizer is preferably 0.01 to 15% by mass, more preferably 0.1 to 10% by mass, and still more preferably 0.1 to 10% by mass with respect to the photocurable liquid resin composition. 5 to 5% by mass.
光硬化性液状樹脂組成物には、エネルギー線の非存在下、光硬化性液状樹脂組成物と混合すると、６０℃以下の温度でラジカル、カチオン又はアニオンを発生し、光硬化性液状樹脂組成物を硬化させる化合物を含めておくことができる。例として、有機過酸化物（例えば、クメンパーオキサイド、ケトンパーオキサイド、パーオキシケタール、ハイドロパーオキサイド、ジアルキルパーオキサイド、ジアシルパーオキサイド、パーオキシエステル、パーオキシジカーボネート）、ポリアミン、酸無水物（無水フタル酸、無水トリメリット酸、無水ピロメリット酸など）、芳香族アミン、ヒドラジド、アミンアダクト類、ジシアンジアミド、ポリスルフィド樹脂、ルイス酸（三フッ化ホウ素、塩化亜鉛、塩化アルミニウム、塩化鉄、塩化スズなど）、アゾ化合物（アゾビスイソブチロニトリル、１，１’−アゾビス（シクロヘキサンカルボニトリル）など）、酸（有機酸又は低温加熱で酸を発生するスルホニウム塩系の酸発生剤など）、塩基（脂肪族ポリアミンなどのポリアミン、イミダゾール、ヒドラジド及びケチミンなどのアミン化合物、低温加熱によってアミン化合物を発生する化合物など）、ポリアミド樹脂、ポリメルカプタン、及び白金族系金属化合物又はその錯体（塩化白金(IV)、塩化白金酸六水和物、ビス（アルキニル）ビス（トリフェニルホスフィン）白金錯体など）などが挙げられる。有機過酸化物の量は、光硬化性液状樹脂組成物中、好ましくは０．００１〜１５質量％であり、より好ましくは０．０１〜１０質量％であり、更に好ましくは０．１〜５質量％である。 When mixed with a photocurable liquid resin composition in the absence of energy rays, the photocurable liquid resin composition generates radicals, cations, or anions at a temperature of 60 ° C. or lower, and the photocurable liquid resin composition. The compound which hardens | cures can be included. Examples include organic peroxides (eg cumene peroxide, ketone peroxide, peroxyketal, hydroperoxide, dialkyl peroxide, diacyl peroxide, peroxyester, peroxydicarbonate), polyamines, acid anhydrides ( Phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, etc.), aromatic amine, hydrazide, amine adducts, dicyandiamide, polysulfide resin, Lewis acid (boron trifluoride, zinc chloride, aluminum chloride, iron chloride, tin chloride) Etc.), azo compounds (azobisisobutyronitrile, 1,1′-azobis (cyclohexanecarbonitrile), etc.), acids (organic acids or sulfonium salt-based acid generators that generate acid by low-temperature heating, etc.), bases (Polyamines such as aliphatic polyamines Amine compounds such as imidazole, hydrazide and ketimine, compounds that generate amine compounds by low-temperature heating), polyamide resins, polymercaptan, and platinum group metal compounds or their complexes (platinum chloride (IV), chloroplatinic acid hexahydrate) Products, bis (alkynyl) bis (triphenylphosphine) platinum complexes, and the like. The amount of the organic peroxide in the photocurable liquid resin composition is preferably 0.001 to 15% by mass, more preferably 0.01 to 10% by mass, and further preferably 0.1 to 5%. % By mass.
光硬化性液状樹脂組成物には、可塑剤を配合することができる。可塑剤として、ジブチルフタレート、ジイソノニルフタレート、ジヘプチルフタレート、ジ（２−エチルヘキシル）フタレート、ジイソデシルフタレート、ブチルベンジルフタレート等のフタル酸エステル；アジピン酸ジオクチル、アジピン酸ジイソノニル、セバシン酸ジオクチル、セバシン酸ジイソノニル、１，２−シクロヘキサンジカルボン酸ジイソノニル等の多価カルボン酸アルキルエステル（例えば、多価カルボン酸のＣ３〜Ｃ１２アルキルエステル等）；トリクレジルホスフェート、トリブチルホスフェート等のリン酸エステル；トリメリット酸エステル；トリエチレングリコール ビス（２−エチルヘキサノエート）等のポリオキシアルキレングリコールのアルキルエステル（例えば、ジ、トリ又はテトラエチレングリコールのＣ３〜Ｃ１２アルキルエステル等）；ゴム系ポリマー、ゴム系コポリマー（例えば、ポリイソプレン、ポリブタジエンもしくはポリブテン、又はこれらの水素化物、これらの両末端に水酸基を導入した誘導体もしくはこれらの水素化物の両末端に水酸基を導入した誘導体等）；熱可塑性エラストマー；石油樹脂；脂環族飽和炭化水素樹脂；テルペン樹脂、テルペンフェノール樹脂、変性テルペン樹脂、水添テルペン樹脂等のテルペン系樹脂；ロジンフェノール等のロジン系樹脂；不均化ロジンエステル系樹脂、重合ロジンエステル系樹脂、水添（水素化）ロジンエステル系樹脂等のロジンエステル系樹脂；キシレン樹脂等；アクリルポリマー、アクリルコポリマーが挙げられる。これらの可塑剤は、１種類、又は２種類以上を組み合わせて使用してもよい。可塑剤の量は、光硬化性液状樹脂組成物１００質量部に対して、１〜６０質量部、好ましくは１０〜３０質量部である。 A plasticizer can be mix | blended with a photocurable liquid resin composition. As a plasticizer, phthalic acid esters such as dibutyl phthalate, diisononyl phthalate, diheptyl phthalate, di (2-ethylhexyl) phthalate, diisodecyl phthalate, butyl benzyl phthalate; dioctyl adipate, diisononyl adipate, dioctyl sebacate, diisononyl sebacate, Polyvalent carboxylic acid alkyl esters such as 1,2-cyclohexanedicarboxylic acid diisononyl (e.g., C3 to C12 alkyl esters of polyvalent carboxylic acid); phosphate esters such as tricresyl phosphate and tributyl phosphate; trimellitic acid ester; Alkyl esters of polyoxyalkylene glycols such as triethylene glycol bis (2-ethylhexanoate) (for example, C of di, tri or tetraethylene glycol) 3-C12 alkyl ester, etc.); rubber polymer, rubber copolymer (for example, polyisoprene, polybutadiene or polybutene, or hydrides thereof, derivatives having hydroxyl groups introduced at both ends thereof, or both ends of these hydrides. Derivatives with hydroxyl group introduced, etc.); thermoplastic elastomers; petroleum resins; alicyclic saturated hydrocarbon resins; terpene resins such as terpene resins, terpene phenol resins, modified terpene resins, hydrogenated terpene resins; Resins; disproportionated rosin ester resins, polymerized rosin ester resins, rosin ester resins such as hydrogenated (hydrogenated) rosin ester resins; xylene resins; acrylic polymers and acrylic copolymers. These plasticizers may be used alone or in combination of two or more. The quantity of a plasticizer is 1-60 mass parts with respect to 100 mass parts of photocurable liquid resin compositions, Preferably it is 10-30 mass parts.
光硬化性液状樹脂組成物には、更に、粘着性付与剤を含有することができる。粘着性付与剤として、例えば熱可塑性エラストマー；石油樹脂；脂環族飽和炭化水素樹脂；テルペン樹脂、テルペンフェノール樹脂、変性テルペン樹脂、水添テルペン樹脂等のテルペン系樹脂；天然ロジン、変性ロジン、水添ロジン、ロジンフェノール等のロジン系樹脂；不均化ロジンエステル系樹脂、重合ロジンエステル系樹脂、水添（水素化）ロジンエステル系樹脂等のロジンエステル系樹脂；キシレン樹脂等；アクリルポリマー、アクリルコポリマーが挙げられる。これらの粘着付与剤は、１種類、又は２種類以上を組み合わせて使用してもよい。粘着性付与剤の量は、光硬化性液状樹脂組成物１００質量部に対して、１〜６０質量部、好ましくは１０〜３０質量部である。 The photocurable liquid resin composition may further contain a tackifier. Examples of tackifiers include thermoplastic elastomers; petroleum resins; alicyclic saturated hydrocarbon resins; terpene resins such as terpene resins, terpene phenol resins, modified terpene resins, hydrogenated terpene resins; natural rosin, modified rosin, water Rosin resins such as rosin and rosin phenol; disproportionated rosin ester resins, polymerized rosin ester resins, rosin ester resins such as hydrogenated (hydrogenated) rosin ester resins; xylene resins; acrylic polymers, acrylics Mention may be made of copolymers. These tackifiers may be used alone or in combination of two or more. The amount of the tackifier is 1 to 60 parts by mass, preferably 10 to 30 parts by mass with respect to 100 parts by mass of the photocurable liquid resin composition.
光硬化性液状樹脂組成物には、更に、光学部材の表面に対する濡れ性を改善するための界面活性剤及びシランカップリング剤、並びに光学部材の表面に膜を形成するための膜形成剤を含むことができる。 The photocurable liquid resin composition further includes a surfactant and a silane coupling agent for improving wettability to the surface of the optical member, and a film forming agent for forming a film on the surface of the optical member. be able to.
界面活性剤としては、アニオン界面活性剤、両性界面活性剤、及び非イオン（ノニオン）型界面活性剤が挙げられる。これらは、１種類、又は２種類以上を組み合せて使用することができる。 Examples of the surfactant include an anionic surfactant, an amphoteric surfactant, and a nonionic surfactant. These can be used alone or in combination of two or more.
アニオン界面活性剤として、石ケン、ラウリル硫酸塩、ポリオキシエチレンアルキルエーテル硫酸塩、アルキルベンゼンスルホン酸塩、ポリオキシエチレンアルキルエーテルリン酸、ポリオキシエチレンアルキルフェニルエーテルリン酸、Ｎ−アシルアミノ酸塩、α−オレフィンスルホン酸塩、アルキル硫酸エステル塩、アルキルフェニルエーテル硫酸エステル塩、及びメチルタウリン酸塩などが挙げられる。アニオン界面活性剤は、１種類、又は２種類以上を組み合わせて使用することができる。 As an anionic surfactant, soap, lauryl sulfate, polyoxyethylene alkyl ether sulfate, alkylbenzene sulfonate, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkylphenyl ether phosphate, N-acyl amino acid salt, α -Olefin sulfonate, alkyl sulfate ester salt, alkyl phenyl ether sulfate ester salt, methyl taurate and the like. An anionic surfactant can be used 1 type or in combination of 2 or more types.
両性界面活性剤としては、塩酸アルキルジアミノエチルグリシン、２−アルキル−Ｎ−カルボキシメチル−Ｎ−ヒドロキシエチルイミダゾリニウムベタイン、ラウリルジメチルアミノ酢酸ベタイン、ヤシ油脂肪酸アミドプロピルベタイン、脂肪酸アルキルベタイン、スルホベタイン、及びアミオキサイドなどが挙げられる。両性界面活性剤は、１種類、又は２種類以上を組み合わせて使用することができる。 Examples of amphoteric surfactants include alkyldiaminoethylglycine hydrochloride, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, coconut oil fatty acid amide propyl betaine, fatty acid alkyl betaine, sulfobetaine And amidoxide. Amphoteric surfactants can be used alone or in combination of two or more.
非イオン（ノニオン）型界面活性剤としては、ポリエチレングリコールのアルキルエステル型化合物、トリエチレングリコールモノブチルエーテルなどのアルキルエーテル型化合物、ポリオキシソルビタンエステルなどのエステル型化合物、アルキルフェノール型化合物、フッ素型化合物、及びシリコーン型化合物などが挙げられる。非イオン（ノニオン）型界面活性剤は、１種類、又は２種類以上を組み合わせて使用することができる。 Nonionic (nonionic) surfactants include polyethylene glycol alkyl ester compounds, alkyl ether compounds such as triethylene glycol monobutyl ether, ester compounds such as polyoxysorbitan esters, alkylphenol compounds, fluorine compounds, And silicone type compounds. Nonionic (nonionic) type surfactants can be used alone or in combination of two or more.
シランカップリング剤として、ビニルトリメトキシシラン、ビニルトリクロルシラン、ビニルトリエトキシシラン、メチルトリメトキシシラン、メチルトリエトキシシラン、メチルトリイソプロポキシシラン、エチルトリエトキシシラン、エチルトリブトキシシラン、シクロヘキシルトリエトキシシラン、フェニルトリイソプロポキシシランなどのトリアルコキシシラン類；テトラメトキシシラン、テトラエトキシシラン、テトラプロポキシシラン、テトライソプロポキシシラン、テトラブトキシシラン、ジメトキシジエトキシシラン、ジメトキシジイソプロポキシシラン、ジエトキシジイソプロポキシシラン、ジエトキシジブトキシシランなどのテトラアルコキシシラン類；ジメチルジメトキシシラン、ジメチルジエトキシシラン、ジエチルジエトキシシラン、ジエチルジブトキシシラン、フェニルエチルジエトキシシランなどのジアルコキシシラン類を例示でき、トリアルコキシシラン類が好ましく、ビニルトリメトキシシランがより好ましい。これらのシランカップリング剤は、１種類、又は２種類以上を組み合わせて使用してもよい。 As the silane coupling agent, vinyltrimethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, methyltriisopropoxysilane, ethyltriethoxysilane, ethyltributoxysilane, cyclohexyltriethoxysilane Trialkoxysilanes such as phenyltriisopropoxysilane; tetramethoxysilane, tetraethoxysilane, tetrapropoxysilane, tetraisopropoxysilane, tetrabutoxysilane, dimethoxydiethoxysilane, dimethoxydiisopropoxysilane, diethoxydiisopropoxy Tetraalkoxysilanes such as silane and diethoxydibutoxysilane; dimethyldimethoxysilane, dimethyldiethoxysilane, and diethyl Diethoxy silane, diethyl dibutoxy silane, can be exemplified a dialkoxysilane such as phenylethyl diethoxy silane, preferably trialkoxysilane, vinyl trimethoxysilane is more preferred. These silane coupling agents may be used alone or in combination of two or more.
膜形成剤としては、特に限定されないが、レベリング性の観点から、好ましくはシリコーン系添加剤、アクリル系レベリング剤、ワックス系表面調整剤、及びフッ素系表面改質剤である。より好ましくは、シリコーン系添加剤、アクリル系レベリング剤、及びフッ素系表面改質剤であり、更に好ましくは、アクリル系レベリング剤、及びフッ素系表面改質剤である。このような膜形成剤として、具体的には、ラウリルアクリレートが挙げられる。 Although it does not specifically limit as a film formation agent, From a viewpoint of leveling property, Preferably it is a silicone type additive, an acrylic type leveling agent, a wax type surface conditioner, and a fluorine type surface modifier. More preferred are silicone additives, acrylic leveling agents, and fluorine surface modifiers, and more preferred are acrylic leveling agents and fluorine surface modifiers. Specific examples of such a film forming agent include lauryl acrylate.
界面活性剤、シランカップリング剤、及び膜形成剤の量は、光硬化性液状樹脂組成物中、各々好ましくは０．０１〜１５質量％、より好ましくは０．０５〜１０質量％、更に好ましくは０．１〜５質量％である。 The amount of the surfactant, the silane coupling agent, and the film forming agent is preferably 0.01 to 15% by mass, more preferably 0.05 to 10% by mass, and still more preferably in the photocurable liquid resin composition. Is 0.1-5 mass%.
工程（Ａ）で、光硬化性液状樹脂組成物を光学部材（ｉ）に塗工する方法としては、ディスペンス方式やコーター方式、印刷方式などがあり、光学部材（ｉ）への光硬化性液状樹脂組成物の適用量は、塗工した樹脂組成物層の厚みで好ましくは１０〜１０００μm、より好ましくは２５〜５００μm、更に好ましくは５０〜３５０μmである。 In the step (A), as a method of applying the photocurable liquid resin composition to the optical member (i), there are a dispensing method, a coater method, a printing method, etc., and a photocurable liquid applied to the optical member (i). The application amount of the resin composition is preferably 10 to 1000 μm, more preferably 25 to 500 μm, and still more preferably 50 to 350 μm in terms of the thickness of the coated resin composition layer.
工程（Ａ）において、光照射により光硬化性液状樹脂組成物を硬化させるタイミングは、前記光学部材（ｉ）に光硬化性液状樹脂組成物を塗工した後とすることができるが、塗工から時間が経過すると液垂れなどが発生することから、光照射は、光硬化性液状樹脂組成物を光学部材（ｉ）に塗工した直後であることが好ましい。塗工から光照射までの間隔は、塗工する光硬化性液状樹脂組成物の粘度にもよるが、塗工面の形状保持のため、塗工から１秒以内であることが好ましい。あるいは、工程（Ａ）は、前記光学部材（ｉ）に前記光硬化性液状樹脂組成物が接触する前に前記光硬化性液状樹脂組成物に光照射して前記光硬化性液状樹脂組成物を硬化させ、前記光学部材（ｉ）上に硬化物を作製する工程としてもよい。この場合、ディスペンサーなどから前記光硬化性液状樹脂組成物が吐出された直後から光照射をすることができるが、塗工面の均一性などの問題が生じ得ることから、光照射は、前記光硬化性液状樹脂組成物と前記光学部材（ｉ）が接触する直前とすることが好ましい。光照射から塗工までの間隔は、塗工する光硬化性液状樹脂組成物の硬化反応速度にもよるが、塗工まで１秒以内であることが好ましい。塗工しながら光照射を行うために、工程（Ａ）は例えば、樹脂が塗工される部材をベルトコンベアで流しながら、塗工が行われる部位か又は塗工が行われる部位から部材の進行方向に僅かにずらした部位に光照射が行われる構成とすることができる。 In the step (A), the timing of curing the photocurable liquid resin composition by light irradiation may be after the photocurable liquid resin composition is applied to the optical member (i). Since liquid dripping etc. generate | occur | produces after time passes, it is preferable that light irradiation is immediately after apply | coating the photocurable liquid resin composition to the optical member (i). The interval from coating to light irradiation depends on the viscosity of the photocurable liquid resin composition to be coated, but is preferably within 1 second from coating in order to maintain the shape of the coated surface. Alternatively, in the step (A), the photocurable liquid resin composition is irradiated with light before the photocurable liquid resin composition is brought into contact with the optical member (i) to thereby apply the photocurable liquid resin composition. It is good also as the process of making it harden | cure and producing hardened | cured material on the said optical member (i). In this case, light irradiation can be performed immediately after the photocurable liquid resin composition is discharged from a dispenser or the like, but problems such as uniformity of the coated surface may occur. It is preferable to be immediately before the liquid crystalline resin composition contacts the optical member (i). The interval from light irradiation to coating depends on the curing reaction rate of the photocurable liquid resin composition to be coated, but is preferably within 1 second until coating. In order to irradiate light while coating, in step (A), for example, while the member to which the resin is applied is flowed on the belt conveyor, the member advances from the portion where the coating is performed or the portion where the coating is performed. It can be set as the structure by which light irradiation is performed to the site | part shifted slightly in the direction.
工程（Ａ）において、エネルギー線を照射することにより光硬化性液状樹脂組成物を硬化させる条件は、特に限定されず、例えば、積算光量は、好ましくは３０〜１５，０００ｍＪ／ｃｍ２であり、より好ましくは５０〜１０，０００ｍＪ／ｃｍ２であり、更に好ましくは１００〜１０，０００ｍＪ／ｃｍ２であり、光硬化性液状樹脂組成物に要求される硬化率に合わせて適宜設定される。エネルギー線の種類は、光学部材が有する物性が光照射によって損なわれない種類のものであれば特に限定されない。エネルギー線の種類の非限定的例として電子線、Ｘ線、紫外線、低波長領域の可視光などエネルギーの高い電子線若しくは電磁波が挙げられるが、通常装置の簡便性及び普及性から紫外線が好ましい。 In the step (A), the conditions for curing the photocurable liquid resin composition by irradiating energy rays are not particularly limited. For example, the integrated light amount is preferably 30 to 15,000 mJ / cm 2 , more preferably 50~10,000mJ / cm 2, still more preferably 100~10,000mJ / cm 2, are set as appropriate in accordance with the curing rate required for the photo-curable liquid resin composition. The type of energy rays is not particularly limited as long as the physical properties of the optical member are those that are not impaired by light irradiation. Non-limiting examples of the types of energy rays include electron beams, X-rays, ultraviolet rays, electron beams with high energy such as visible light in a low wavelength region, or electromagnetic waves, but ultraviolet rays are usually preferred because of the simplicity and widespread use of the apparatus.
光学部材（ｉ）に塗工された光硬化性液状樹脂組成物は、要求される硬化率に合わせて硬化状態を設定できる。例えば、光照射によりＢステージと呼ばれる半硬化状態とすることもできるし、完全硬化に近い状態まで硬化することもできる。工程（Ｂ）の後に追照射を実施する場合においては、液垂れなどが発生しない程度の硬さを保ちつつ、光学部材（ｉｉ）との接着性を確保する観点から、光照射によりＢステージと呼ばれる半硬化状態とすることが好ましい。この場合、工程（Ａ）での硬化後における光硬化性液状樹脂組成物の硬化率は、４０％〜９０％の範囲とすることが好ましく、４５％〜８０％の範囲とすることがより好ましく、５０％〜７０％の範囲とすることが更に好ましい。工程（Ｂ）の後に追照射を実施しない場合は、工程（Ａ）での硬化後における光硬化性液状樹脂組成物の硬化率は９０％以上であることがより好ましく、９５％以上であることが更に好ましい。ここで、本明細書において、「硬化率」とは、硬化性樹脂組成物の硬化度合を示す値であり、硬化性樹脂組成物中の硬化反応に関与する官能基の、硬化反応による消費率として表される。硬化率は、例えば硬化物のＩＲ分析による吸収ピーク強度の変化によって算出することができる。光硬化性液状樹脂組成物がアクリル樹脂である場合、光照射の前後でのアクリル基のＩＲ吸収を測定し、その吸光度の変化率を硬化率とする。 The photocurable liquid resin composition applied to the optical member (i) can be set in a cured state in accordance with a required curing rate. For example, it can be in a semi-cured state called a B stage by light irradiation, or it can be cured to a state close to complete curing. In the case where additional irradiation is performed after the step (B), from the viewpoint of securing adhesiveness with the optical member (ii) while maintaining a hardness that does not cause dripping, A so-called semi-cured state is preferable. In this case, the curing rate of the photocurable liquid resin composition after curing in the step (A) is preferably in the range of 40% to 90%, and more preferably in the range of 45% to 80%. More preferably, the range is 50% to 70%. When the additional irradiation is not performed after the step (B), the curing rate of the photocurable liquid resin composition after curing in the step (A) is more preferably 90% or more, and 95% or more. Is more preferable. Here, in this specification, the “curing rate” is a value indicating the degree of curing of the curable resin composition, and the consumption rate of the functional group involved in the curing reaction in the curable resin composition due to the curing reaction. Represented as: The curing rate can be calculated by, for example, a change in absorption peak intensity by IR analysis of the cured product. When the photocurable liquid resin composition is an acrylic resin, the IR absorption of the acrylic group before and after the light irradiation is measured, and the change rate of the absorbance is defined as the curing rate.
光照射の工程においては、一旦Ｂステージの半硬化樹脂層を形成させたのち、更に所定の硬化率にするために追照射を行ってもよい。追照射後の硬化率は、樹脂の使用方法、要求される硬化率によって上記のように設定できる。 In the light irradiation process, after the semi-cured resin layer of the B stage is once formed, additional irradiation may be performed in order to obtain a predetermined curing rate. The curing rate after additional irradiation can be set as described above depending on the method of using the resin and the required curing rate.
工程（Ｂ）は、光学部材（ｉ）上で硬化した光硬化性液状樹脂組成物を介して、光学部材（ｉｉ）と光硬化性液状樹脂組成物とが接触するように、光学部材（ｉ）及び（ｉｉ）を貼り合せる工程である。これにより、光学部材（ｉ）及び（ｉｉ）の貼り合せ体が得られる。工程（Ｂ）において、光学部品構成部材（ｉ）及び（ｉｉ）を貼り合せる際に、硬化した光硬化性液状樹脂組成物と光学部材（ｉｉ）との接触を促進させるために、圧縮などの手段を用いてもよい。
貼り合せた後、光硬化性樹脂が完全には硬化していない場合、更に光照射を行うことにより、樹脂を完全に硬化させて、光学部材を貼り合せた光学部品を得ることができる。
In the step (B), the optical member (i) is brought into contact with the optical member (ii) through the photocurable liquid resin composition cured on the optical member (i). ) And (ii). Thereby, the bonded body of optical member (i) and (ii) is obtained. In step (B), in order to promote contact between the cured photocurable liquid resin composition and the optical member (ii) when the optical component constituent members (i) and (ii) are bonded together, compression or the like is performed. Means may be used.
If the photocurable resin is not completely cured after bonding, the resin can be completely cured by further irradiating the light, and an optical component bonded with the optical member can be obtained.
〔光学部品及び光学表示装置〕
本発明の方法は、具体的には、保護パネルとタッチセンサーパネルとの貼り合せ、保護パネルと表示体との貼り合せ、タッチセンサーパネルと表示体との貼り合せ、保護パネル付タッチセンサーパネルと表示体との貼り合せ、保護パネルとタッチセンサー付表示体との貼り合せ、３Ｄシステムと表示体との貼り合せ、保護パネルと３Ｄシステム付表示体との貼り合せ、タッチセンサーパネルと３Ｄシステム付表示体との貼り合せ、保護パネル付タッチセンサーパネルと３Ｄシステム付表示体との貼り合せ、及び保護パネルとタッチセンサー付３Ｄシステム付表示体との貼り合せなどの、光学部品構成部材の貼り合せに用いられる。本発明の方法で得られる光学部品は先に挙げられた光学部品構成部材同士の貼り合せ体である。また、本発明の方法で得られる光学部品を含む光学表示装置の例として、液晶ディスプレイ、有機ＥＬディスプレイが挙げられる。
[Optical components and optical display devices]
Specifically, the method of the present invention includes bonding a protective panel and a touch sensor panel, bonding a protective panel and a display body, bonding a touch sensor panel and a display body, Bonding with display, bonding of protective panel and display with touch sensor, bonding of 3D system and display, bonding of protective panel and display with 3D system, touch sensor panel and 3D system Bonding of optical component components such as bonding with a display body, bonding of a touch sensor panel with a protection panel and a display body with a 3D system, and bonding of a protection panel with a display body with a 3D system with a touch sensor Used for. The optical component obtained by the method of the present invention is a laminate of the optical component constituent members mentioned above. Moreover, a liquid crystal display and an organic electroluminescent display are mentioned as an example of the optical display apparatus containing the optical component obtained by the method of this invention.
以下に実施例により本発明を説明する。 The following examples illustrate the invention.
〔光硬化性液状樹脂組成物〕
表１に示す組成（質量部）を有する光硬化性液状樹脂組成物を調製した。各アクリレート化合物を容量約２００mlのナンコー容器に入れ、室温（２５℃）にてスリーワンモータ（新東科学社製）で混ぜ、そこにＩ−１８４、ルシリンＴＰＯ、ＤＩＮＣＨ、ＫＥ−３１１を加え、オーブンで約６０℃に加温して溶解させ、その後常温に戻した後、室温（２５℃）にてスリーワンモータ（新東科学社製）で混ぜ、光硬化性液状樹脂組成物を得た。
[Photocurable liquid resin composition]
A photocurable liquid resin composition having the composition (parts by mass) shown in Table 1 was prepared. Each acrylate compound is put in a Nanko container having a capacity of about 200 ml and mixed at room temperature (25 ° C.) with a three-one motor (manufactured by Shinto Kagaku Co., Ltd.). The mixture was heated to about 60 ° C. and dissolved, then returned to room temperature, and then mixed at room temperature (25 ° C.) with a three-one motor (manufactured by Shinto Kagaku Co., Ltd.) to obtain a photocurable liquid resin composition.
ＵＶ３６３０ＩＤ８０（日本合成化学工業（株）製；紫外線硬化型ウレタンアクリレート樹脂）
ＦＡ５１２ＡＳ（日立化成（株）製；単官能アクリレートモノマー）
ＬＡ（共栄社化学社製；ラジカル反応硬化型樹脂）
４−ＨＢＡ（日本化成（株）製；アクリレートモノマー）
Ｉ−１８４（ＢＡＳＦ社製；エネルギー開裂型開始剤）
ＴＰＯ（ＢＡＳＦ社製；エネルギー開裂型開始剤）
ＤＩＮＣＨ（ＢＡＳＦ社製；可塑剤）
ＫＥ−３１１（荒川化学工業（株）製；粘着付与剤）
UV3630ID80 (manufactured by Nippon Synthetic Chemical Industry Co., Ltd .; UV curable urethane acrylate resin)
FA512AS (manufactured by Hitachi Chemical Co., Ltd .; monofunctional acrylate monomer)
LA (manufactured by Kyoeisha Chemical Co .; radical reaction curable resin)
4-HBA (Nippon Kasei Co., Ltd .; acrylate monomer)
I-184 (manufactured by BASF; energy cleavage type initiator)
TPO (manufactured by BASF; energy-cleavable initiator)
DINCH (manufactured by BASF; plasticizer)
KE-311 (Arakawa Chemical Industries, Ltd .; tackifier)
〔試験例〕
試験方法
（実施例１）
（実施例１−１）１０cm×１０cmのガラス板に、スリットコーターを用いて前記光硬化性液状樹脂組成物を８cm×８cmの面積に塗工した。ガラス板上に光硬化性液状樹脂組成物による塗工面が形成されてから１秒以内に、塗工面が形成された部位に、光硬化性液状樹脂組成物の硬化率が４０％となるように光量を調節して、ライン照射タイプのＬＥＤ（ＣＣＳ社製、ＨＬＵＶ）を用いて波長３６５nmの紫外線を照射させ、光硬化性液状樹脂組成物を硬化させた。硬化率は、ＦＴ−ＩＲにより硬化前の液状樹脂組成物及び硬化物の、アクリル基のピークの吸光度を測定し、その大きさの差により算出した。光硬化性液状樹脂組成物を塗工したガラス板に同じ大きさのガラス板を貼り合せた後再度光照射を行い、未反応の光硬化性液状樹脂組成物を完全に硬化させて、貼り合せ体を得た。
[Test example]
Test method (Example 1)
Example 1-1 The photocurable liquid resin composition was applied to an area of 8 cm × 8 cm on a 10 cm × 10 cm glass plate using a slit coater. The curing rate of the photocurable liquid resin composition is 40% at the site where the coated surface is formed within 1 second after the coated surface of the photocurable liquid resin composition is formed on the glass plate. The photocurable liquid resin composition was cured by adjusting the amount of light and irradiating ultraviolet rays having a wavelength of 365 nm using a line irradiation type LED (manufactured by CCS, HLUV). The curing rate was calculated by measuring the absorbance of the acrylic group peak of the liquid resin composition before curing and the cured product by FT-IR, and calculating the difference in size. After a glass plate of the same size is bonded to the glass plate coated with the photocurable liquid resin composition, light irradiation is performed again, and the unreacted photocurable liquid resin composition is completely cured and bonded. Got the body.
（実施例１−２）光硬化性液状樹脂組成物の硬化率が６０％となるようにした以外は、実施例１−１と同様にして、貼り合せ体を製造した。 Example 1-2 A bonded body was produced in the same manner as in Example 1-1 except that the curing rate of the photocurable liquid resin composition was 60%.
（実施例１−３）光硬化性液状樹脂組成物の硬化率が８０％となるようにした以外は、実施例１−１と同様にして、貼り合せ体を製造した。 Example 1-3 A bonded body was manufactured in the same manner as in Example 1-1 except that the curing rate of the photocurable liquid resin composition was 80%.
（実施例２）
実施例１−２の方法と同様にして貼り合せ体を製造したが、紫外線の照射位置を、光硬化性液状樹脂組成物が塗工される部位に変更し、光硬化性液状樹脂組成物がガラス板に塗工される直前に光照射を受けるように調整して、塗工を行った。
(Example 2)
Although the bonded body was manufactured like the method of Example 1-2, the irradiation position of an ultraviolet-ray was changed into the site | part by which a photocurable liquid resin composition is applied, and a photocurable liquid resin composition was obtained. Coating was carried out by adjusting so as to receive light irradiation immediately before coating on a glass plate.
（実施例３）
実施例１−１の方法と同様にして貼り合せ体を製造したが、光硬化性液状樹脂組成物をガラス板に塗布し、半硬化樹脂層を形成した後、硬化率が８０％となるように更に光照射を行い、その後もう一方のガラス板と貼り合せた。
Example 3
A bonded body was produced in the same manner as in Example 1-1. However, after the photocurable liquid resin composition was applied to a glass plate to form a semi-cured resin layer, the curing rate was 80%. The sample was further irradiated with light and then bonded to the other glass plate.
（実施例４）
光硬化性液状樹脂組成物の硬化率が９５％となるようにした以外は、実施例１−１と同様にして、貼り合せ体を製造した。
Example 4
A bonded body was produced in the same manner as in Example 1-1 except that the curing rate of the photocurable liquid resin composition was 95%.
（実施例５）
光硬化性液状樹脂組成物の硬化率が９５％となるようにした以外は、実施例２と同様にして、貼り合せ体を製造した。
(Example 5)
A bonded body was produced in the same manner as in Example 2 except that the curing rate of the photocurable liquid resin composition was 95%.
（実施例６）
追照射後の光硬化性液状樹脂組成物の硬化率が９５％となるようにした以外は、実施例３と同様にして、貼り合せ体を製造した。
(Example 6)
A bonded body was produced in the same manner as in Example 3 except that the curing rate of the photocurable liquid resin composition after the additional irradiation was 95%.
（比較例１）
実施例１と同様にして光硬化性液状樹脂組成物をガラス板に塗工したが、光照射を行わずに、もう一方のガラス板と貼り合せた。その後、光照射を行い、光硬化性液状樹脂組成物を完全に硬化させて、貼り合せ体を得た。
(Comparative Example 1)
The photocurable liquid resin composition was applied to a glass plate in the same manner as in Example 1, but it was bonded to the other glass plate without performing light irradiation. Then, light irradiation was performed, the photocurable liquid resin composition was fully hardened, and the bonded body was obtained.
（比較例２）
実施例１−２と同じ条件で貼り合せ体を製造したが、最初の光照射を、光硬化性液状樹脂組成物の塗工後別の生産ラインに移した後に行って、貼り合せ体を得た。
(Comparative Example 2)
Although the bonded body was manufactured on the same conditions as Example 1-2, after performing the first light irradiation after moving to another production line after application of a photocurable liquid resin composition, a bonded body was obtained. It was.
（比較例３）
実施例２と同じ条件で貼り合せ体を製造したが、最初の光照射を、光硬化性液状樹脂組成物の塗工後別の生産ラインに移した後に行って、貼り合せ体を得た。
(Comparative Example 3)
Although the bonded body was manufactured on the same conditions as Example 2, the first light irradiation was performed after moving to another production line after application of a photocurable liquid resin composition, and the bonded body was obtained.
［評価］
液垂れについては、光学部材（ｉｉ）を貼り合せた後の樹脂外周部を目視で確認し、液垂れがない場合を○（良好）とし、液垂れが観察された場合を×（不良）とした。気泡についても同様に、目視で気泡が確認できない場合を○（良好）とし、気泡が確認された場合を×（不良）とした。結果を表２に示す。
[Evaluation]
For liquid dripping, visually confirm the outer periphery of the resin after bonding the optical member (ii). If there is no liquid dripping, it is marked as ◯ (good), and when liquid dripping is observed as x (bad). did. Similarly, for bubbles, the case where bubbles could not be confirmed visually was evaluated as “good”, and the case where bubbles were confirmed was evaluated as “poor”. The results are shown in Table 2.
上記表２から明らかなように、従来の方法（比較例）により貼り合せた部材には、液垂れ又は気泡が見られ、良好な部材が得られなかったが、本発明の方法により貼り合せた部材には、液垂れや気泡が見られず、良好な部材を製造することができた。 As is clear from Table 2 above, liquid dripping or bubbles were observed on the members bonded by the conventional method (comparative example), and a good member was not obtained, but bonding was performed by the method of the present invention. No dripping or bubbles were observed on the member, and a good member could be manufactured.
本発明の方法によれば、接着剤用樹脂の液垂れや接着面での気泡の発生などの光学部品の見た目に悪影響を与える問題を生じることなく、光学部品を接着することが出来るようになり、均一に良好な品質の光学部品を提供することができる。このため、本発明の方法は、タッチパネル、３Ｄ表示画像などの液晶ディスプレイをはじめとした光学表示装置を製造する分野において有用である。 According to the method of the present invention, it becomes possible to bond an optical component without causing problems that adversely affect the appearance of the optical component, such as dripping of the resin for the adhesive or generation of bubbles on the bonding surface. It is possible to provide optical components with uniform and good quality. For this reason, the method of this invention is useful in the field | area which manufactures optical display apparatuses including liquid crystal displays, such as a touchscreen and a 3D display image.
１：光硬化性液状樹脂組成物
２：光学部材
３：完全硬化後の光硬化性液状樹脂組成物
４：光硬化性液状樹脂組成物が塗工される部分
５：半硬化した光硬化性液状樹脂組成物
1: Photo-curable liquid resin composition 2: Optical member 3: Photo-curable liquid resin composition after complete curing 4: Part to which the photo-curable liquid resin composition is applied 5: Semi-cured photo-curable liquid Resin composition
Claims (6)
（Ａ）光硬化性液状樹脂組成物を光照射により硬化させて、光学部材（ｉ）上に前記光硬化性液状樹脂組成物の硬化物を作成する工程、及び
（Ｂ）前記光学部材（ｉ）上に作成した前記硬化物の上に光学部材（ｉｉ）を貼り合せる工程
を含み、前記（Ａ）工程における光照射が、光硬化性液状樹脂組成物を光学部材（ｉ）に塗工するのと同時であるか、前記光硬化性液状樹脂組成物が前記光学部材（ｉ）に接触する直前であるか、又は前記光学部材（ｉ）に前記光硬化性液状樹脂組成物による塗工面が形成された直後に行われる方法。 A method of bonding an optical member (i) and another optical member (ii),
(A) a step of curing the photocurable liquid resin composition by light irradiation to produce a cured product of the photocurable liquid resin composition on the optical member (i), and (B) the optical member (i). ) Including the step of bonding the optical member (ii) onto the cured product prepared above, and the light irradiation in the step (A) applies the photocurable liquid resin composition to the optical member (i). Or just before the photocurable liquid resin composition comes into contact with the optical member (i), or the optical member (i) has a coating surface with the photocurable liquid resin composition. A method performed immediately after being formed.
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| JPH02130132A (en) * | 1988-11-11 | 1990-05-18 | Matsushita Electric Works Ltd | Manufacture of optical shaped article |
| JP2012152677A (en) * | 2011-01-24 | 2012-08-16 | Shibaura Mechatronics Corp | Adhesive supply apparatus and adhesive supply method |
| JP2013152339A (en) * | 2012-01-25 | 2013-08-08 | Dexerials Corp | Method for manufacturing image display apparatus |
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| JP2019085488A (en) * | 2017-11-07 | 2019-06-06 | 信越化学工業株式会社 | Method of bonding substrates |
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