JPS6079054A - Acrylic resin composition - Google Patents
Acrylic resin compositionInfo
- Publication number
- JPS6079054A JPS6079054A JP58187614A JP18761483A JPS6079054A JP S6079054 A JPS6079054 A JP S6079054A JP 58187614 A JP58187614 A JP 58187614A JP 18761483 A JP18761483 A JP 18761483A JP S6079054 A JPS6079054 A JP S6079054A
- Authority
- JP
- Japan
- Prior art keywords
- particle
- inorg
- fine
- methyl methacrylate
- methacrylate polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
本発明は光拡散性を有し、かつ白変の高い７クリλし樹
脂組成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a 7-criteria resin composition that has light diffusing properties and exhibits high white discoloration.
メタクリル酸メチル重合体は、板状製品として看板、デ
ィスプレーなどに使用されるは力・照明カバーにも使用
される。この場合、乳色半透明の板に成形されて、使用
に供される場合もある。Methyl methacrylate polymer is used in plate-shaped products such as signboards and displays, as well as power and lighting covers. In this case, it may be formed into a milky translucent plate and used.
前記の材料を照明カバーとして用いるとき、要求される
性能はいくつかあるが、その中でも表面の色調に白変が
あることは重要である。乳色半透明のアクリル樹脂を得
るには無機質の光拡散剤を使用するが、この場合でも安
定して表面色調に白変のある製品を得ることは困難であ
った。When using the above-mentioned material as a lighting cover, there are several performance requirements, and among them, white discoloration of the surface color is important. An inorganic light diffusing agent is used to obtain a milky translucent acrylic resin, but even in this case it has been difficult to stably obtain a product with white discoloration on the surface.
本発明者は表面色調に白変の高い、照明用途に適した乳
色半透明アクリル樹脂組成物を得ることを目的として検
討した結果本発明を完成するに至ったものである。The present inventor completed the present invention as a result of studies aimed at obtaining a milky translucent acrylic resin composition suitable for lighting applications, which has a high degree of white discoloration in surface color.
即ち、本発明は、メタクリル酸メチル重合体１００部と
平均粒子径１〜３０μｐ’Ｈ５，５〜７．５の無機質微
粒子２〜６部よりなるアクリル樹脂組成物である。That is, the present invention is an acrylic resin composition comprising 100 parts of a methyl methacrylate polymer and 2 to 6 parts of inorganic fine particles having an average particle diameter of 1 to 30 μp'H5.5 to 7.5.
本発明でいう無機的微粒子の例としては酸化チタン、タ
ルク、沈降性炭酸カルシウム、沈降性硫酸バリウム、シ
リカなどをあげることができる。Examples of the inorganic fine particles used in the present invention include titanium oxide, talc, precipitated calcium carbonate, precipitated barium sulfate, and silica.
本発明でいう無機質微粒子のｐＨとは、無機質微粒子１
０ｇを２００ ｃ ｃのイオン交換水中に入れ、十分攪
拌した後静置して無機質微粒子が沈降した後に得られる
上澄液のｐｌ（である。The pH of inorganic fine particles in the present invention refers to inorganic fine particles 1
0 g was placed in 200 cc of ion-exchanged water, thoroughly stirred, and left to stand to allow the inorganic fine particles to settle. This is the PL of the supernatant obtained.
このようＫして測定したｐＨの値が５．５に溝だない場
合は得られる乳白色半透明のアクリル板のこの発明の目
的を達成することはできない。If the pH value measured in this manner is not within 5.5, the object of the present invention of the obtained milky-white translucent acrylic plate cannot be achieved.
本発明で用いる無機質微粒子の平均粒子径は１〜３０μ
が好ましく、３０μを超える場合は光線の透過損失が大
きく、１μに満たない場合は十分な光拡散効果は得られ
ない。無機質を使用する量比はメタクリル酸メチル重合
体１００部に対して２部から６部が好ましく、２部に未
たない場合は、得られたアクリル樹脂組成物より得られ
る乳白色半透明板は十分な光拡散効果を有さす、ランプ
・イメージが残るので、好ましくない。また、６部を超
える場合は光線の透過損失が大きくなる。The average particle diameter of the inorganic fine particles used in the present invention is 1 to 30μ
is preferable; if it exceeds 30μ, the transmission loss of light rays will be large, and if it is less than 1μ, a sufficient light diffusion effect will not be obtained. The amount ratio of the inorganic material used is preferably 2 parts to 6 parts per 100 parts of the methyl methacrylate polymer, and if it is less than 2 parts, the milky white translucent plate obtained from the obtained acrylic resin composition is sufficient. This is undesirable because it leaves a lamp image with a light diffusion effect. Moreover, when the amount exceeds 6 parts, the transmission loss of light rays increases.
本発明のアクリル樹脂組成物より得られる板状体あるい
は成形物は照明用途において好適な性能を発揮する他、
表面白皮が高いので、着るしく美麗な製品を提供するこ
とができる。The plate-shaped body or molded article obtained from the acrylic resin composition of the present invention exhibits suitable performance in lighting applications, and
Due to the high white skin on the surface, it is possible to provide products that are beautiful and wearable.
以下実施例により本発明の態様を詳細に説明する。Embodiments of the present invention will be explained in detail with reference to Examples below.
実 施 例
パラペラ）ＥＨ（協和ガス化学工業株式会社製アクリル
樹脂成形材料の商品名）１００部に沈降性硫酸バリウム
４部を添加し、６５ｍ＋径の単軸押出機に供給し、シリ
ンダ一温度２１５〜２．４０’Ｃ１に用いた諸数値はＪ
ＩＳ Ｚ ８７２７により測定し、ＪＩＳ Ｚ８７２Ｂ
で表示した。Example) 4 parts of precipitated barium sulfate was added to 100 parts of EH (trade name of acrylic resin molding material manufactured by Kyowa Gas Chemical Industry Co., Ltd.), and the mixture was fed to a 65 m+ diameter single-screw extruder, and the cylinder temperature was 215 m. ~2.40' The various values used for C1 are J
Measured according to IS Z 8727, JIS Z872B
It was displayed in
Claims (1)
〜３０μｐ）（５，５〜７．５の無機質微粒子２〜６部
よりなるアクリル樹脂組成物。1) 100 parts of methyl methacrylate polymer and average particle size of 1
~30 μp) (Acrylic resin composition consisting of 2 to 6 parts of 5.5 to 7.5 inorganic fine particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58187614A JPS6079054A (en) | 1983-10-06 | 1983-10-06 | Acrylic resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58187614A JPS6079054A (en) | 1983-10-06 | 1983-10-06 | Acrylic resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6079054A true JPS6079054A (en) | 1985-05-04 |
| JPH0367108B2 JPH0367108B2 (en) | 1991-10-21 |
Family
ID=16209186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58187614A Granted JPS6079054A (en) | 1983-10-06 | 1983-10-06 | Acrylic resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079054A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS575742A (en) * | 1980-06-16 | 1982-01-12 | Mitsubishi Rayon Co Ltd | Light diffusing acrylic resin sheet material |
| JPS5736916A (en) * | 1980-08-13 | 1982-02-27 | Mitsubishi Monsanto Chem | |
| JPS5986638A (en) * | 1982-11-09 | 1984-05-18 | Kuraray Co Ltd | Resin composition having excellent electromagnetic wave shielding property and rigidity |
-
1983
- 1983-10-06 JP JP58187614A patent/JPS6079054A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS575742A (en) * | 1980-06-16 | 1982-01-12 | Mitsubishi Rayon Co Ltd | Light diffusing acrylic resin sheet material |
| JPS5736916A (en) * | 1980-08-13 | 1982-02-27 | Mitsubishi Monsanto Chem | |
| JPS5986638A (en) * | 1982-11-09 | 1984-05-18 | Kuraray Co Ltd | Resin composition having excellent electromagnetic wave shielding property and rigidity |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0367108B2 (en) | 1991-10-21 |
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