JPH04236243A - Molded article of plastic and coating agent for molded article of plastic - Google Patents
Molded article of plastic and coating agent for molded article of plasticInfo
- Publication number
- JPH04236243A JPH04236243A JP3021513A JP2151391A JPH04236243A JP H04236243 A JPH04236243 A JP H04236243A JP 3021513 A JP3021513 A JP 3021513A JP 2151391 A JP2151391 A JP 2151391A JP H04236243 A JPH04236243 A JP H04236243A
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- molded article
- plastic molded
- cured film
- coating agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 50
- 239000004033 plastic Substances 0.000 title claims abstract description 48
- 239000011248 coating agent Substances 0.000 title claims abstract description 31
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 4
- 229920002972 Acrylic fiber Polymers 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000002087 whitening effect Effects 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 description 2
- 229910007156 Si(OH)4 Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- ZDGGJQMSELMHLK-UHFFFAOYSA-N m-Trifluoromethylhippuric acid Chemical compound OC(=O)CNC(=O)C1=CC=CC(C(F)(F)F)=C1 ZDGGJQMSELMHLK-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical compound [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はプラスチック成形体及び
プラスチック成形体用コート剤に関し、更に詳細には、
表面にガラス質の透明硬化膜が形成されたプラスチック
成形体及びその透明硬化膜を形成するコート剤に関する
。[Field of Industrial Application] The present invention relates to plastic molded bodies and coating agents for plastic molded bodies, and more specifically,
The present invention relates to a plastic molded article having a glassy transparent cured film formed on its surface and a coating agent for forming the transparent cured film.
【０００２】0002
【従来の技術】現在、種々の合成樹脂からプラスチック
成形体が成形されている。これらプラスチック成形体は
、他の物体との接触によって成形体の表面に擦過傷等が
付き易いため、使用中に次第に光沢が失われる欠点があ
る。このため、従来においては、プラスチック成形体の
表面保護としては、プラスチック成形体の表面に金属め
っきを施すことが行われている。また、透明プラスチッ
ク成形体においては、金属めっきを施すことによって透
明性が喪失されるため、合成樹脂から成る透明フィルム
を積層することがなされている。2. Description of the Related Art Currently, plastic molded bodies are molded from various synthetic resins. These plastic molded articles have the disadvantage that they gradually lose their luster during use because the surface of the molded article is easily scratched and scratched by contact with other objects. For this reason, conventionally, the surface of a plastic molded body has been protected by applying metal plating to the surface of the plastic molded body. Furthermore, since transparent plastic molded bodies lose their transparency when metal plating is applied, transparent films made of synthetic resin are laminated thereon.
【０００３】0003
【発明が解決しようとする課題】この様に金属めっきが
施されたプラスチック成形体は、プラスチックよりも硬
度の高い金属層で覆われるため、他の物体との接触に因
る擦過傷等が容易に付かず、金属めっき層の光沢を維持
することができる。しかしながら、金属めっきを施した
プラスチック成形体は、金属色を呈しプラスチック自体
が有する色相を損なう。また、合成樹脂から成る透明フ
ィルムを積層された透明プラスチック成形体においては
、透明フィルムによって成形体の透明性を損なうことな
く成形体の表面を一時的に保護することができる。しか
し、合成樹脂製の透明フィルムは他の物体との接触等に
よって破損され易く、透明フィルムが破損された箇所の
成形体表面は他の物体との接触に因る擦過傷等が付き易
くなるため、使用中に次第に透明性及び光沢が消失する
。[Problem to be Solved by the Invention] Plastic molded products that have been metal-plated in this way are covered with a metal layer that is harder than plastic, so they are easily susceptible to scratches and the like due to contact with other objects. The gloss of the metal plating layer can be maintained without sticking. However, a metal-plated plastic molded body exhibits a metallic color, which impairs the hue of the plastic itself. Furthermore, in a transparent plastic molded body laminated with a transparent film made of synthetic resin, the surface of the molded body can be temporarily protected by the transparent film without impairing the transparency of the molded body. However, transparent films made of synthetic resin are easily damaged by contact with other objects, and the surface of the molded product where the transparent film is damaged is susceptible to scratches due to contact with other objects. Transparency and gloss gradually disappear during use.
【０００４】そこで、本発明の目的は、表面に他の物体
との接触等によって容易に破損されることのない透明硬
化膜が形成され、プラスチック自身が有する色相や透明
性を損なうことのないプラスチック成形体及び前記透明
硬化膜を形成するコート剤を提供するにある。[0004] Accordingly, an object of the present invention is to create a plastic that has a transparent cured film formed on its surface that is not easily damaged by contact with other objects, and that does not impair the hue or transparency of the plastic itself. The present invention provides a molded article and a coating agent for forming the transparent cured film.
【０００５】[0005]
【課題を解決するための手段】本発明者は、前記目的を
達成すべく鋭意検討した結果、ケイ酸ブチルを主成分と
する硬化剤とメチルトリメトキシシランを主成分とする
密着剤とを出発原料として得られたガラス質の硬化膜が
透明で且つ硬度が高いことを見い出し、本発明に到達し
た。即ち、本発明は、プラスチック成形体の少なくとも
一部の表面に、ケイ酸ブチルを主成分とする硬化剤とメ
チルトリメトキシシランを主成分とする密着剤とを出発
原料として得られたガラス質の透明硬化膜が形成されて
いることを特徴とするプラスチック成形体である。また
、本発明は、ケイ酸ブチル、エタノール、及び塩酸を混
合して得られる硬化剤と、メチルトリメトキシシラン、
エタノール、及び塩酸を混合して得られる密着剤とから
成るプラスチック成形体用コート剤でもある。かかる本
発明において、プラスチック成形体がアクリル系プラス
チックから成ることが形成される透明硬化膜との密着性
が良好である。また、コート剤中に酢酸等の白化防止剤
が添加されていることが、形成される透明硬化膜の白化
現象を防止できる。[Means for Solving the Problems] As a result of intensive studies to achieve the above object, the present inventors have developed a curing agent containing butyl silicate as a main component and an adhesive containing methyltrimethoxysilane as a main component. The present invention was achieved by discovering that the glassy cured film obtained as a raw material is transparent and has high hardness. That is, the present invention provides a method of coating on at least a portion of the surface of a plastic molded article a glassy material obtained using as starting materials a curing agent containing butyl silicate as a main component and an adhesive containing methyltrimethoxysilane as a main component. This is a plastic molded article characterized by having a transparent cured film formed thereon. The present invention also provides a curing agent obtained by mixing butyl silicate, ethanol, and hydrochloric acid, methyltrimethoxysilane,
It is also a coating agent for plastic molded bodies, consisting of an adhesive obtained by mixing ethanol and hydrochloric acid. In the present invention, the plastic molded body made of acrylic plastic has good adhesion to the formed transparent cured film. Furthermore, adding an anti-whitening agent such as acetic acid to the coating agent can prevent the whitening phenomenon of the transparent cured film that is formed.
【０００６】[0006]
【作用】本発明によれば、プラスチック成形体の表面に
ガラス質の透明硬化膜を容易に形成できるため、プラス
チック自身の色相や透明性を損なうことがない。更に、
透明硬化膜がガラス質であるために硬度が高く、成形体
を他の物体と接触させても表面に擦過傷等が付き難く、
プラスチック成形体の光沢等を長期間保持することがで
きる。この様な透明硬化膜が形成できる詳細な理由は、
未だ明確になっていないが次の様に推察される。つまり
、ケイ酸ブチル ［Ｓｉ（Ｃ４Ｈ９Ｏ）４］ を加水分
解して得られるＳｉ（ＯＨ）４ から成るガラス質の固
化体を、メチルトリメトキシシラン ［ＣＨ３Ｓｉ（Ｃ
Ｈ３Ｏ）３］ を出発物質とする網状構造物によってプ
ラスチック成形物の表面に密着してガラス質の透明硬化
膜が形成されているものと考えられる。[Operation] According to the present invention, a vitreous transparent cured film can be easily formed on the surface of a plastic molded body, so that the hue and transparency of the plastic itself are not impaired. Furthermore,
Since the transparent cured film is glassy, it has high hardness, and even if the molded product comes into contact with other objects, it is difficult to get scratches on the surface.
The gloss etc. of the plastic molded body can be maintained for a long period of time. The detailed reason why such a transparent cured film can be formed is as follows.
Although it is not clear yet, it is inferred as follows. In other words, a glassy solidified body of Si(OH)4 obtained by hydrolyzing butyl silicate [Si(C4H9O)4] is converted into methyltrimethoxysilane [CH3Si(C
It is thought that a glassy transparent cured film is formed in close contact with the surface of the plastic molded product by a network structure containing H3O)3] as a starting material.
【０００７】[0007]
【発明の構成】本発明においては、プラスチック成形体
の表面に、ケイ酸ブチルを主成分とする硬化剤とメチル
トリメトキシシランを主成分とする密着剤とを出発原料
として得られたガラス質の透明硬化膜が形成されている
ことが大切である。ここで、ケイ酸ブチル ［Ｓｉ（Ｃ
４Ｈ９Ｏ）４］ に代えてケイ酸エチル ［Ｓｉ（Ｃ２
Ｈ５Ｏ）４］ を用いると、ガラス質の固化物を形成す
ることができない。かかるケイ酸ブチル及びメチルトリ
メトキシシランは、エタノール中に溶解して使用するこ
とができる。この様なガラス質の透明硬化膜をプラスチ
ック成形体の表面に形成するためのコート剤には、ガラ
ス質の固化物を形成する硬化剤成分と前記ガラス質の固
化物をプラスチック成形体の表面に密着する密着剤成分
とを含有する。この硬化剤成分としては、ケイ酸ブチル
、エタノール、及び塩酸が配合され、密着剤成分として
は、メチルトリメトキシシラン、エタノール、及び塩酸
が配合されている。DESCRIPTION OF THE INVENTION In the present invention, a vitreous material obtained using a curing agent mainly composed of butyl silicate and an adhesive mainly composed of methyltrimethoxysilane is applied to the surface of a plastic molded body. It is important that a transparent cured film is formed. Here, butyl silicate [Si(C
4H9O)4] in place of ethyl silicate [Si(C2
H5O)4], it is not possible to form a glassy solidification. Such butyl silicate and methyltrimethoxysilane can be used dissolved in ethanol. A coating agent for forming such a glassy transparent cured film on the surface of a plastic molded product includes a curing agent component that forms a glassy solidified product and a hardening agent component that forms a glassy solidified product on the surface of the plastic molded product. Contains an adhesive component that adheres closely. Butyl silicate, ethanol, and hydrochloric acid are blended as the curing agent component, and methyltrimethoxysilane, ethanol, and hydrochloric acid are blended as the adhesive component.
【０００８】かかるコート剤を用いてプラスチック成形
体の表面にガラス質の透明硬化膜を形成するためには、
所望のプラスチック成形体に前記硬化剤成分と密着剤成
分とを含有するコート剤を塗布し、次いでプラスチック
成形体の融点或いは軟化点よりも低温で加熱しつつ約３
０〜６０分間保持する。この様に本発明のコート剤によ
れば、プラスチック成形体を変質させる温度以下の温度
で処理することによってガラス質の透明硬化膜を形成す
ることができるのである。本発明のコート剤中には、得
られる透明硬化膜の白化を防止するために酢酸等の白化
防止剤、得られる膜の硬化を促進する酢酸ナトリウム等
の硬化促進剤、膜に制電性を付与するチオシアン酸ナト
リウム等の制電剤等が含有されていてもよい。更に、コ
ート剤の塗布を容易にすべく、ポリビニルブチラール（
ＰＶＢ）等の増粘剤が含有されていてもよい。尚、硬化
剤成分、密着剤成分、及び白化防止剤等の保持剤成分は
コート剤を塗布する直前に混合してもよく、予め両者を
混合しておいた溶液をプラスッチク成形体に塗布しても
よい。[0008] In order to form a glassy transparent cured film on the surface of a plastic molded body using such a coating agent,
A coating agent containing the curing agent component and adhesive component is applied to a desired plastic molded body, and then heated at a temperature lower than the melting point or softening point of the plastic molded body for about 30 minutes.
Hold for 0-60 minutes. As described above, according to the coating agent of the present invention, a vitreous transparent cured film can be formed by treating the plastic molded article at a temperature lower than the temperature at which it deteriorates. The coating agent of the present invention contains an anti-whitening agent such as acetic acid to prevent the resulting transparent cured film from whitening, a curing accelerator such as sodium acetate to accelerate the hardening of the resulting film, and an antistatic agent to the film. An antistatic agent such as sodium thiocyanate may be included. In addition, polyvinyl butyral (
A thickener such as PVB) may also be included. In addition, the curing agent component, adhesive component, and retaining agent component such as anti-whitening agent may be mixed immediately before applying the coating agent. Good too.
【０００９】かかる本発明のコート剤を塗布するプラス
チック成形体は、アクリル系プラスチック成形体である
ことが、コート剤の密着性が良好である。また、プラス
チック成形体が、ポリカーボネート系プラスチック成形
体である場合は、先ずプライマー層を形成してから本発
明のコート剤を塗布することが得られる透明硬化膜とプ
ラスチック成形体とを良好に密着することができる。更
に、プラスチック成形体の表面全面に本発明のコート剤
を塗布する必要はなく、使用中等において他の物体を接
触する可能性のある部分にのみ塗布するだけでもよい。
尚、プラスチック成形体は、透明であっても着色されて
いてもよい。[0009] The plastic molded article to which the coating agent of the present invention is applied is preferably an acrylic plastic molded article because the adhesion of the coating agent is good. In addition, when the plastic molded body is a polycarbonate-based plastic molded body, first forming a primer layer and then applying the coating agent of the present invention ensures good adhesion between the obtained transparent cured film and the plastic molded body. be able to. Furthermore, it is not necessary to apply the coating agent of the present invention to the entire surface of the plastic molded article, and it is sufficient to apply it only to the portions that are likely to come into contact with other objects during use. Note that the plastic molded body may be transparent or colored.
【００１０】以上、述べてきた本発明のコート剤は、プ
ラスチック成形体のみならず種々のものに使用すること
ができる。例えば、錆止め用として金属板等の金属成形
体に塗布することができ、アルミ等の軟質の材質から成
る成形体の表面保護のためにも用いることができる。更
に、本発明のコート剤は、紙や木材の保護にも用いるこ
とができ、成形体に塗布された塗装の保護或いは電子部
品のモールド用にも用いることができる。The coating agent of the present invention described above can be used not only for plastic molded articles but also for various other articles. For example, it can be applied to metal molded bodies such as metal plates for rust prevention, and can also be used to protect the surface of molded bodies made of soft materials such as aluminum. Further, the coating agent of the present invention can be used to protect paper and wood, and can also be used to protect paint applied to molded objects or molded electronic parts.
【００１１】[0011]
【実施例】本発明を実施例によって更に詳細に説明する
。
実施例１
アクリル樹脂製の透明プレートの半分に下記組成のコー
ト剤を塗布した後、６５℃で６０分間乾燥した。乾燥が
終了したプレートを取り出して観察したところ、コート
剤を塗布した部分には透明の硬化膜が形成されており、
硬化膜はプレートと同程度の透明を呈していた。このプ
レートの表面を金属タワシで軽く擦って肉眼観察したと
ころ、アクリル樹脂が露出している部分では表面に擦過
傷が認められたが、硬化膜が形成されている部分では擦
過傷は認められなかった。尚、本実施例において、得ら
れる硬化膜が白化することがあったが、その程度は僅か
であり最終的に得られる製品の美観には特に問題はなか
った。
コート剤の組成
硬化剤成分
ケイ酸ブチル ［Ｓ
ｉ（Ｃ４Ｈ９Ｏ）４］ ２３ｍｌ
エタノール
７ｍｌ
塩酸（０．１ 規定）
８ｍｌ
密着剤成分
メチルトリメトキシ
シラン ３５ｍｌ
［ＣＨ３Ｓｉ（ＣＨ３Ｏ）
３］ エタノール
１０
ｍｌ 塩酸（０．０１
規定） １２ｍｌ
EXAMPLES The present invention will be explained in more detail by way of examples. Example 1 A coating agent having the following composition was applied to half of a transparent plate made of acrylic resin, and then dried at 65° C. for 60 minutes. When the drying plate was taken out and observed, a transparent cured film was formed on the areas where the coating agent was applied.
The cured film was as transparent as the plate. When the surface of this plate was lightly rubbed with a metal scrubber and visually observed, scratches were observed on the surface where the acrylic resin was exposed, but no scratches were observed on the areas where the cured film was formed. In this example, the cured film obtained sometimes whitened, but the degree of whitening was slight and there was no particular problem with the aesthetic appearance of the final product. Composition of coating agent Hardening agent component Butyl silicate [S
i(C4H9O)4] 23ml
ethanol
7ml
Hydrochloric acid (0.1 normal)
8ml
Adhesive ingredient methyltrimethoxysilane 35ml
[CH3Si(CH3O)
3] Ethanol
10
ml hydrochloric acid (0.01
Standard) 12ml
【００１２】実施例２
実施例１で用いたコート剤に、白化防止剤として酢酸３
ｇを添加した他は実施例１と同様にしてアクリル樹脂製
のプレートにコート剤を塗布して乾燥した。プレート表
面に形成される硬化膜は、実施例１の如く白化すること
がなく透明のものが得られる。このため、硬化膜の白化
によって、最終的に得られる製品の美観を損なう懸念を
解消することができた。Example 2 Acetic acid 3 was added to the coating agent used in Example 1 as an anti-whitening agent.
A coating agent was applied to an acrylic resin plate and dried in the same manner as in Example 1 except that g was added. The cured film formed on the plate surface does not whiten as in Example 1 and is transparent. Therefore, it was possible to eliminate the concern that the appearance of the final product would be impaired due to whitening of the cured film.
【００１３】実施例３
実施例２において使用したコート剤に、硬化促進剤とし
ての酢酸ナトリウム０．４ｇ、制電剤としてのチオシア
ン酸ナトリウム０．２ｇ、及び増粘剤としてのポリビニ
ブチラール（ＰＶＢ）１．０ｇを添加した。次いで、実
施例１と同様にアクリル製のプレートにコート剤を塗布
し実施例１と同温度（６５℃）で乾燥した。硬化膜を形
成するための乾燥時間を、実施例１よりも短時間の４０
分とすることができた。また、白化することなく得られ
た硬化膜は制電性をも呈するため、本実施例の透明硬化
膜を表面に形成されたプレートはゴミが付着し難いもの
であった。尚、本実施例のコート剤は、増粘剤によって
粘度調整されているため、プレートにコート剤を均一厚
さに容易に塗布することができた。Example 3 The coating agent used in Example 2 contained 0.4 g of sodium acetate as a curing accelerator, 0.2 g of sodium thiocyanate as an antistatic agent, and polyvinibutyral (PVB) as a thickener. )1.0g was added. Next, in the same manner as in Example 1, a coating agent was applied to an acrylic plate and dried at the same temperature (65° C.) as in Example 1. The drying time for forming a cured film was 40% shorter than in Example 1.
I was able to do it in minutes. Moreover, since the cured film obtained without whitening also exhibits antistatic properties, the plate on which the transparent cured film of this example was formed was difficult to attract dust. In addition, since the viscosity of the coating agent of this example was adjusted by a thickener, it was possible to easily apply the coating agent to a uniform thickness on the plate.
【００１４】比較例
実施例１において、使用したケイ酸ブチル ［Ｓｉ（Ｃ
４Ｈ９Ｏ）４］ に代えてケイ酸エチル ［Ｓｉ（Ｃ２
Ｈ５Ｏ）４］ を用いた他は実施例１と同様に行ったが
、透明硬化膜が形成されなかった。Comparative Example In Example 1, butyl silicate [Si(C
4H9O)4] in place of ethyl silicate [Si(C2
The same procedure as in Example 1 was conducted except that H5O)4] was used, but a transparent cured film was not formed.
【００１５】[0015]
【発明の効果】本発明によれば、ガラス質の透明硬化膜
をプラスチック成形体表面に塗布することによって形成
できるため、形状が複雑で透明フィルム等の積層が不可
能であったプラスチック成形体の表面にも、容易にガラ
ス質の硬化膜を形成することができる。[Effects of the Invention] According to the present invention, a glassy transparent cured film can be formed by applying it to the surface of a plastic molded product. A glassy cured film can also be easily formed on the surface.
Claims (4)
の表面に、ケイ酸ブチルを主成分とする硬化剤とメチル
トリメトキシシランを主成分とする密着剤とを出発原料
として得られたガラス質の透明硬化膜が形成されている
ことを特徴とするプラスチック成形体。Claim 1: At least a part of the surface of the plastic molded article is coated with a glassy transparent material obtained using a curing agent mainly composed of butyl silicate and an adhesive mainly composed of methyltrimethoxysilane as starting materials. A plastic molded article characterized by having a cured film formed thereon.
スチックから成る成形体である請求項２記載のプラスチ
ック成形体。2. The plastic molded article according to claim 2, wherein the plastic molded article is a molded article made of acrylic plastic.
を混合して得られる硬化剤と、メチルトリメトキシシラ
ン、エタノール、及び塩酸を混合して得られる密着剤と
から成るプラスチック成形体用コート剤。3. A coating agent for plastic molded bodies comprising a curing agent obtained by mixing butyl silicate, ethanol, and hydrochloric acid, and an adhesive obtained by mixing methyltrimethoxysilane, ethanol, and hydrochloric acid.
請求項３記載のプラスチック成形体用コート剤。4. The coating agent for plastic molded bodies according to claim 3, wherein an anti-whitening agent such as acetic acid is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3021513A JPH04236243A (en) | 1991-01-21 | 1991-01-21 | Molded article of plastic and coating agent for molded article of plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3021513A JPH04236243A (en) | 1991-01-21 | 1991-01-21 | Molded article of plastic and coating agent for molded article of plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04236243A true JPH04236243A (en) | 1992-08-25 |
Family
ID=12057055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3021513A Pending JPH04236243A (en) | 1991-01-21 | 1991-01-21 | Molded article of plastic and coating agent for molded article of plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04236243A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4881928A (en) * | 1972-02-05 | 1973-11-01 | ||
| JPS5325655A (en) * | 1976-08-23 | 1978-03-09 | Asahi Chem Ind Co Ltd | Composition used for the formation of film |
| JPS57177028A (en) * | 1981-04-23 | 1982-10-30 | Sumitomo Chem Co Ltd | Surface treatment of synthetic resin molded article |
-
1991
- 1991-01-21 JP JP3021513A patent/JPH04236243A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4881928A (en) * | 1972-02-05 | 1973-11-01 | ||
| JPS5325655A (en) * | 1976-08-23 | 1978-03-09 | Asahi Chem Ind Co Ltd | Composition used for the formation of film |
| JPS57177028A (en) * | 1981-04-23 | 1982-10-30 | Sumitomo Chem Co Ltd | Surface treatment of synthetic resin molded article |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4242413A (en) | Vapor plating method for plastics | |
| US5766739A (en) | Panel composed of synthetic resins and coated with an antifogging layer and a method of making the panel | |
| CA2232780A1 (en) | Polymeric peel-off coating compositions and methods of use thereof | |
| JPS56161475A (en) | Coating composition | |
| JPH04270716A (en) | Ultraviolet-curing varnish and covering method by using it | |
| US4126594A (en) | Method of protecting plastic films against abrasion and lacquer for performing the method | |
| US2941916A (en) | Heat resistant decalcomania transfer and method of making and using the same | |
| JPH04236243A (en) | Molded article of plastic and coating agent for molded article of plastic | |
| US2341885A (en) | Process for coating plastic materials and the product produced | |
| US2595867A (en) | Organic backing | |
| MX9503646A (en) | Coatings on glass. | |
| US3597373A (en) | Coating composition of a mixture of a vinyl chloride-acetate copolymer with a mixture of acrylic resins and one-half second cellulose acetate butyrate | |
| JP3090743B2 (en) | Transfer material and transfer using the same | |
| US3111497A (en) | Aqueous polyvinyl alcohol coating composition containing aluminum glitter pigment | |
| JPS6014970A (en) | Formation of colored paint coated film on hard coating layer | |
| US2341884A (en) | Playing card and process for making the same | |
| GB2091274A (en) | A process for the treatment of polyacetal articles | |
| JPH059439A (en) | Coating composition | |
| JPS6136865B2 (en) | ||
| GR3030556T3 (en) | Substrates provided with several of coatings and process for producing such substrates | |
| JP3169716B2 (en) | Transfer type release film | |
| JPS58222160A (en) | Coating composition | |
| JPS62121734A (en) | Improvement of coatability and adhesion of hard coat surface | |
| JPH0225984B2 (en) | ||
| JPH068377A (en) | Transfer sheet |