JPS6296566A - Resin molding - Google Patents
Resin moldingInfo
- Publication number
- JPS6296566A JPS6296566A JP23639085A JP23639085A JPS6296566A JP S6296566 A JPS6296566 A JP S6296566A JP 23639085 A JP23639085 A JP 23639085A JP 23639085 A JP23639085 A JP 23639085A JP S6296566 A JPS6296566 A JP S6296566A
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- Japan
- Prior art keywords
- appearance
- particles
- resin
- molded product
- volume
- 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.)
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Links
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、カメラ、ＶＴＲ，ＯＡ機器、電気カミソリ、
化粧品等の内・外装材、容器などに使用される樹脂成形
品に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to cameras, VTRs, OA equipment, electric razors,
Related to resin molded products used for interior and exterior materials, containers, etc. of cosmetics, etc.
従来より熱可塑性樹脂と光沢のある外観を賦与するため
の充填材として例えば金属粒子を混合、溶融成形した成
形品は数多く知られている。これら成形品には光沢賦与
粒子の形状により２つの類系がある。その第１は、特開
昭５８−３７０４５号公報で開示されているような微粉
乃至超微粉の金属粒子を充填することによって全面が一
様な金属調すなわちメタリック調の外観を呈する成形品
である。この成形品を射出成形により製造する場合、金
型内での溶融樹脂の流動断面は、第２図及び第３図に示
したように、流動過程（第２図）で流れ先端に金属粒子
の含まれない層２２ができるため、流れ同志の胴さり目
に樹脂だけのウェルドマーク２３ （第３図）が形成さ
れる。このウェルドマークは金属粒子を含まないために
、光を吸収して黒く見え外観を著しく損なう。従って、
この様な成形品は、カメラ外装カバーのような高級モー
ルド品としては使用し得ないものであった。Many molded products have been known in which a thermoplastic resin is mixed with, for example, metal particles as a filler to give a glossy appearance and then melt-molded. There are two types of these molded products depending on the shape of the gloss imparting particles. The first is a molded product that has a uniform metallic appearance over its entire surface by filling it with fine to ultrafine metal particles, as disclosed in Japanese Patent Application Laid-Open No. 58-37045. . When manufacturing this molded product by injection molding, the flow cross section of the molten resin in the mold is as shown in Figures 2 and 3. Since a layer 22 that does not contain the resin is formed, a weld mark 23 (FIG. 3) made of only resin is formed at the flange of the flow comrades. Since this weld mark does not contain metal particles, it absorbs light and appears black, significantly detracting from its appearance. Therefore,
Such molded products could not be used as high-grade molded products such as camera exterior covers.
その第２の類型は平均相当径３０μｍ以上で平均形状比
１７１０以下の金属片状粉を用いたものである。この成
形品は、樹脂と金属片状粉との混練及び成形の際に片状
扮がせん断力を受は破壊されてしまう。破壊されなけれ
ば、成形品のウェルドマークは目立ちにく（なるが、破
壊されると、矢針前述した第１の類型にみられるように
、ウェルドマークを目立たせる結果となる。The second type uses metal flake powder with an average equivalent diameter of 30 μm or more and an average shape ratio of 1710 or less. In this molded product, the flakes are damaged by shearing force during kneading and molding of the resin and metal flakes. If it is not destroyed, the weld mark on the molded product will not be noticeable (but if it is destroyed, the weld mark will become noticeable as seen in the first type mentioned above).
因みに、平均相当径５０μｍ、平均形状比１７１０以下
のアルミニウム片状粉の混練成形前後の粒度分布を第４
図及び第５図に示す。この場合も、ウェルドマークが目
立つようになり、複雑形状の高級モールド品に使用する
のは難しい。Incidentally, the particle size distribution of aluminum flake powder with an average equivalent diameter of 50 μm and an average shape ratio of 1710 or less before and after kneading and forming is shown in the fourth table.
As shown in FIG. In this case as well, the weld mark becomes conspicuous, making it difficult to use it for high-grade molded products with complex shapes.
また、ウェルドマークのほか、成形品外観不良の要因と
しては、ツヤムラ、ヒケ、シルバーストリーク等がある
。例えば、基本肉厚２ｆｉの成形品に、第６図に示した
１、 ５ ｗ＊の局部的な薄肉部が存在すると、例えば
ポリカーボネート樹脂成形品の場合、外観部６１に５〜
１０μｍの段差が生じ、ツヤムラとして見える。また、
基本肉厚２龍の成形品に、第７図に示した３、０鶴の局
部的な厚肉部が存在すると、矢針外観部７１に５〜１０
μｍの段差が生じ、ヒケとして目立つ。In addition to weld marks, causes of poor appearance of molded products include uneven gloss, sink marks, silver streaks, etc. For example, if a molded product with a basic wall thickness of 2fi has a local thin wall part of 1.5 w* as shown in FIG.
A step difference of 10 μm appears as uneven gloss. Also,
If there is a local thick wall part of 3,0 Tsuru shown in FIG.
A micrometer level difference occurs and is noticeable as a sink mark.
この様なツヤムラやヒケを目立たせないために、従来か
ら高型温度成形を行なうことが試みられてきたが、高型
温度成形を行なうと成形時間が長くなり、生産性が低下
するし１、ツヤムラやヒケは多少は目立たな（なるが、
完全に消し去ることはできない。In order to make such uneven gloss and sink marks less noticeable, attempts have been made to perform high-temperature molding, but high-temperature molding increases molding time and reduces productivity. The uneven gloss and sink marks are somewhat noticeable (but
It cannot be completely erased.
このため、外観不良を解消する手段として、塗装等の二
次加工を必要としたり、外観不良を出さないための設計
の調整を行なってきたが、製品の設計制約は非常に大き
くなっていた。Therefore, as a means to eliminate appearance defects, secondary processing such as painting has been required, and design adjustments have been made to prevent appearance defects, but product design constraints have become extremely large.
また、射出成形だけで最終成形品を得る場合のもう１つ
の問題として、樹脂自体の表面硬度が低く、キズがつき
易い点が挙げられる。一端キズがつくと、外観に著しい
影響を与え、高級観を損なうことが多く見られた。Another problem when obtaining a final molded product only by injection molding is that the resin itself has a low surface hardness and is easily scratched. Once scratched, it has a significant impact on the exterior, often detracting from its luxurious appearance.
本発明の第１の目的は、光沢賦与粒子を充填した従来の
樹脂成形品にみられるウェルドマーク等による外観不良
をなくした樹脂成形品を提供することにある。A first object of the present invention is to provide a resin molded product that eliminates appearance defects such as weld marks that are found in conventional resin molded products filled with gloss imparting particles.
本発明の第２の目的はζこの様なウェルドマークをなく
すと共に、ツヤムラ、ヒケ、シルバーストリーク等によ
る外観不良を目立たなくさせ、しかもキズがついた場合
にも外観に著しい損傷を与えることのない樹脂成形品を
提供することにある。The second object of the present invention is to eliminate such weld marks, make appearance defects such as uneven gloss, sink marks, silver streaks, etc. less noticeable, and even if scratches occur, there will be no significant damage to the appearance. Our goal is to provide resin molded products.
本発明の第３の目的は、この様な外観不良をなくすと共
に、カメラ外装カバー、ＶＴＲカバー等の複雑形状の高
級モールド品にも使用し得る優れた外観、即ち晴天の夜
空に散りばめられて輝く銀河の如き（以下、銀河調とい
う）外観を有する樹脂成形品を提供することにある。The third objective of the present invention is to eliminate such appearance defects and to provide an excellent appearance that can be used for high-quality molded products with complex shapes such as camera exterior covers and VTR covers, in other words, to provide an appearance that shines when scattered in the clear night sky. The object of the present invention is to provide a resin molded product having a galaxy-like appearance (hereinafter referred to as galaxy-like).
本発明の第４の目的は、成形品の製品設計に際し、外観
不良を解消するための設計制約を排除することのできる
樹脂成形品を提供することにある。A fourth object of the present invention is to provide a resin molded product that can eliminate design constraints for eliminating appearance defects when designing the molded product.
上記目的は、熱可塑性樹脂１００容量部に対して、平均
相当径ｌＯ〜３００μｍ、平均形状比１７８〜１の光沢
を有する粒子０．０５〜５．０容量部含有し、反射率が
前記光沢を有する粒子を含まない状態よりも１５％以上
高められていることを特徴とする本発明の樹脂成形品に
よって達成される。The above purpose is to contain 0.05 to 5.0 parts by volume of glossy particles with an average equivalent diameter of 10 to 300 μm and an average shape ratio of 178 to 1 per 100 parts by volume of a thermoplastic resin, and the reflectance of the particles is higher than the gloss. This is achieved by the resin molded article of the present invention, which is characterized in that the resin molded article of the present invention is 15% or more higher than the state without particles.
本発明で使用する前記光沢を有する粒子（以下、光沢粒
子という）は、平均相当径１０〜３００μｍ、平均形状
比１７８〜１の粒子である。The glossy particles used in the present invention (hereinafter referred to as glossy particles) have an average equivalent diameter of 10 to 300 μm and an average shape ratio of 178 to 1.
ここで平均相当径とは、光沢粒子の最長径と最短径の算
術平均を相当径とし、試験粒子群についてこの相当径を
平均した値をいう。相当径の測定は、成形品の状態乃至
は成形品を溶剤に溶かした状態で、ガラス板上に載せ、
粒子分布測定器ルーゼックス（商品名、日本レギュレー
タ＠製）を用いて行なうことができる。The average equivalent diameter herein refers to the value obtained by taking the arithmetic mean of the longest diameter and the shortest diameter of the glossy particles as the equivalent diameter, and averaging this equivalent diameter for the test particle group. To measure the equivalent diameter, place the molded product or the molded product dissolved in a solvent on a glass plate.
This can be carried out using a particle distribution measuring device Luzex (trade name, manufactured by Nippon Regulator@).
また平均形状比とは、粒子の最長径と最短径との比、即
ち（最短径）／（最長径）の算術平均である。平均形状
比の算出には、やはり粒子分布測定器ルーゼックス等を
用いることができる。Moreover, the average shape ratio is the ratio of the longest diameter to the shortest diameter of particles, that is, the arithmetic mean of (shortest diameter)/(longest diameter). To calculate the average shape ratio, a particle distribution measuring device such as Luzex can be used.
光沢粒子を球と仮定し、球の中心間距離が全て同じに分
散している系においては、光沢粒子の平均間隙は次式（
１）で表わされる。Assuming that the glossy particles are spheres, in a system where the distances between the centers of the spheres are all equally distributed, the average gap between the glossy particles is calculated by the following formula (
1).
式（１）中、
Ｄ：光沢粒子の平均間隙
Ｒ：光沢粒子の平均相当径
■：熱可塑性樹脂と光沢粒子の合計体積に対する全光沢
粒子の体積比
りはウェルドマークの目立ちぐあいの指数であり、Ｄが
大きくなるとウェルドマークは目立ちにくくなる。即ち
、通常メタリックモールドのウェルドマークの巾は３０
μｍ以下であるため、Ｄを３５μｍより大きくすればウ
ェルドマークは目立ちにくくなる。In formula (1), D: Average gap between glossy particles R: Average equivalent diameter of glossy particles ■: The volume ratio of all glossy particles to the total volume of thermoplastic resin and glossy particles is an index of the conspicuousness of the weld mark. , D becomes larger, the weld mark becomes less noticeable. In other words, the width of the weld mark of a metallic mold is usually 30 mm.
Since it is less than μm, if D is made larger than 35 μm, the weld mark becomes less noticeable.
Ｄが３５μｍ以上となり、しかも銀河調外観を呈するの
に最適な平均担当径は、１０〜３００μｍである。平均
相当径が１０μｍ未満であると、ウェルドマーク等外観
不良が目立つと共に、一つ一つの粒子が視覚で判別しが
たく、単に色調を変えるだけになる。またキズを目立た
せなくする効果も小さい。The optimum average diameter for D to be 35 μm or more and to exhibit a galaxy-like appearance is 10 to 300 μm. If the average equivalent diameter is less than 10 μm, appearance defects such as weld marks will be noticeable, and individual particles will be difficult to visually distinguish, resulting in merely changing color tone. It also has a small effect on making scratches less noticeable.
平均相当径が３００μｍを超えると、光沢粒子が異物の
様に見え外観バランスを損ない外観は得られなくなる。If the average equivalent diameter exceeds 300 μm, the glossy particles will look like foreign matter, impairing the balance of appearance and making it impossible to obtain a good appearance.
平均相当径の特に好ましい範囲は、２０〜１００μｍで
ある。A particularly preferable range of the average equivalent diameter is 20 to 100 μm.
また、本発明で使用する光沢粒子の平抱形状比を１７８
〜】としたのは、１７８未満であると、混練成形の際光
沢粒子の破壊が起き易く、ウェルドマークが目立ち易く
なるためである。平均形状比は、特に１７３〜１のとき
が好ましい。In addition, the flat shape ratio of the glossy particles used in the present invention is 178
~] is because if it is less than 178, the glossy particles are likely to be destroyed during kneading and molding, and weld marks are likely to be noticeable. The average shape ratio is particularly preferably 173-1.
更に、光沢粒子の含量は熱可塑性樹脂１００容量部に対
して０．０５〜５．０容量部であることが必要であるが
、とりわけ０．３〜３．０容量部であることが好ましい
。光沢粒子の量が０．０５容量部より少ないと粒子がま
ばらになりすぎて外観不良やキズの目立ちをなくす効果
が余り得られない、５，０容量部より多いと粒子の色調
が成形品の色調を決めるような状態になり銀河調外観を
作り得ない。Further, the content of the glossy particles is required to be 0.05 to 5.0 parts by volume, particularly preferably 0.3 to 3.0 parts by volume, based on 100 parts by volume of the thermoplastic resin. If the amount of glossy particles is less than 0.05 part by volume, the particles will be too sparse and will not be very effective in eliminating poor appearance or the conspicuousness of scratches. It becomes impossible to create a galaxy-like appearance because the color tone is determined.
また、本発明の樹脂成形品において、外観不良をなくし
、優れた外観を形成するためのもう１つの必須の条件と
して、樹脂成形品の反射率が、光沢粒子を含まない状態
よりも１５％以上高められていることが挙げられる。In addition, in the resin molded product of the present invention, another essential condition for eliminating appearance defects and forming an excellent appearance is that the reflectance of the resin molded product is 15% or more than that of a state without glossy particles. One example is that it is elevated.
ここで、反射率は、ホトニックセンサー（商品名、フオ
トニクス社製）を用い、成形品を支持台に載せプローブ
を垂直に配置し光を投光し、反射した光を測定する方法
で測定した反射率をいう。Here, the reflectance was measured using a photonic sensor (trade name, manufactured by Photonics) by placing the molded product on a support stand, placing the probe vertically, emitting light, and measuring the reflected light. Refers to reflectance.
この反射率の上昇率が１５％未満では、外観不良やキズ
の目立ちを解消するのに不十分であり、また銀河調外観
を呈するのが不完全になる。反射率の上昇率のより好ま
しくは、２５〜８０％である。If the rate of increase in reflectance is less than 15%, it is insufficient to eliminate poor appearance and conspicuous scratches, and the galaxy-like appearance is incomplete. The rate of increase in reflectance is more preferably 25 to 80%.
本発明に使用する光沢粒子は、表面に光沢を有している
粒子であればその基材を問わない。例えば少なくとも表
層部分が、アルミニウム、すす、銅、鉄などの金属、こ
れらの金属を基質とする黄銅、ステンレス、等の合金、
マイカ、ある種の貝殻、複屈折を起す様な無機乃至は有
機ポリマー結晶、けい光体などからなる光沢粒子を使用
することができる。The base material of the glossy particles used in the present invention does not matter as long as the particles have a glossy surface. For example, at least the surface layer is made of metals such as aluminum, soot, copper, or iron; alloys made of these metals such as brass or stainless steel;
Glossy particles made of mica, certain shells, inorganic or organic polymer crystals that exhibit birefringence, phosphors, etc. can be used.
例えば、アルミニウム粒子を使用すると銀色のキラキラ
した外観、黄銅粒子を使用すると金色のしっとりした外
観が得られる。また、金属粒子の表面の光沢観を変化さ
せることでも多様な外観を形成することができる。For example, using aluminum particles will give you a silvery, sparkling appearance, and using brass particles will give you a golden, moist appearance. Moreover, various appearances can be formed by changing the gloss appearance of the surface of the metal particles.
本発明において使用される熱可塑性樹脂は例えばアクリ
ル樹脂、ポリスチレン樹脂、ポリプロピレン等ポリオレ
フィン系樹脂、塩化ビニル樹脂、メチルペンテン樹脂、
ポリカーボネート樹脂、共重合ポリエステル、共重合ポ
リアミド、ＡＢＳ等の樹脂で相互に混合されていたり着
色されていてもよい。また、本発明の樹脂成形品に着色
剤を例えば樹脂１００容量部に対して０．１〜１２．０
容量部混合することで更に多様な外観を形成できる。Examples of the thermoplastic resin used in the present invention include acrylic resin, polystyrene resin, polyolefin resin such as polypropylene, vinyl chloride resin, methylpentene resin,
Resins such as polycarbonate resin, copolyester, copolyamide, ABS, etc. may be mixed with each other or may be colored. Further, the resin molded product of the present invention may be added with a coloring agent in an amount of, for example, 0.1 to 12.0 parts per 100 parts by volume of the resin.
By mixing volume parts, more diverse appearances can be formed.
また、本発明の効果を損わない範囲内で、熱可塑性樹脂
に配合しうる各種の安定剤、離型剤、帯電防止剤、難燃
剤等を添加することができる。Furthermore, various stabilizers, mold release agents, antistatic agents, flame retardants, etc. that can be added to the thermoplastic resin can be added within a range that does not impair the effects of the present invention.
本発明の樹脂成形品は、射出成形や射出圧縮成形で製造
される場合、特に効果を発揮するものであるが、押出し
成形など他の溶融成形法でもよい。The resin molded article of the present invention is particularly effective when manufactured by injection molding or injection compression molding, but other melt molding methods such as extrusion molding may be used.
メタリック外観の成形においては、外観不良の１つであ
るシルバーストリークが発生し易いことが以前より言わ
れているが、乾燥時間を２時間以上とすること及び金型
温度を下げないようにすることを守れば、銀河調外観の
場合シルバーストリ−りは発生しない。また金属調外観
の場合、ビンポイントゲートはシルバーストリークを発
生させ易いが、本発明の銀河調外観の場合は、ピンポイ
ントゲートでもシルバーストリークは発生しない。It has been said for some time that silver streaks, which are a type of appearance defect, are likely to occur when molding with a metallic appearance, but it is important to keep the drying time at least 2 hours and to avoid lowering the mold temperature. If this is followed, silver streaks will not occur in the case of a galaxy-like appearance. Further, in the case of a metal-like appearance, a pinpoint gate is likely to cause silver streaks, but in the case of a galaxy-like appearance of the present invention, even a pinpoint gate does not cause silver streaks.
熱可塑性樹脂と光沢粒子は予め樹脂を溶融させて混合し
た組成物、例えばペレットとして使用することが、成形
品中に光沢粒子を均一に分散させるため好ましい。It is preferable to use a composition in which the thermoplastic resin and the glossy particles are mixed in advance by melting the resin, for example, in the form of pellets, in order to uniformly disperse the glossy particles in the molded product.
以下に実施例を示し、本発明を更に具体的に説明する。EXAMPLES The present invention will be explained in more detail with reference to Examples below.
実施例１
第１図（（ａ）平面図（ｂ）Ａ−Ａ’断面図）に示した
樹脂成形品１を射出成形した。成形品１はたて１００關
、よこ８０１ｍ１の平板で、基本肉厚が１．６ｎ、厚肉
部２，３の厚みがそれぞれ２．６龍、２．０鶴で薄肉部
４，５の厚みがそれぞれ１．２１１、Ｑ、 ３１ｍであ
り、着色ＡＢＳ樹脂１００容量部に対し、平均相当径５
２μｍ、平均形状比１／３．７のアルミニウム粒子を１
．０容量部含有し、下記の成形条件により成形された。Example 1 A resin molded product 1 shown in FIG. 1 ((a) plan view (b) AA' sectional view) was injection molded. Molded product 1 is a flat plate with a length of 100 m and a width of 801 m1, the basic wall thickness is 1.6n, the thickness of thick parts 2 and 3 is 2.6 mm and 2.0 mm, respectively, and the thickness of thin parts 4 and 5 is 2.6 mm and 2.0 mm, respectively. are 1.211 m, Q, and 31 m, respectively, and the average equivalent diameter is 5 m for 100 volume parts of colored ABS resin.
1 aluminum particle with a diameter of 2 μm and an average shape ratio of 1/3.7
．． It contained 0 parts by volume and was molded under the following molding conditions.
得られた成形品の反射率は、アルミニウム粒子を含まな
い状態よりも５６．７％高められており、ウェルドマー
ク、ツヤムラ、ヒケ等の外観不良もなく、キズもつきに
＜＜、外観としてもカメラカバーに十分使用できるキラ
キラと輝く高級外観が得られた。The reflectance of the obtained molded product is 56.7% higher than that without aluminum particles, and there are no appearance defects such as weld marks, uneven gloss, or sink marks, and there are no scratches. The result is a sparkling, high-class appearance that can be used as a camera cover.
実施例２．３
使用したアルミ粒子の平均相当径を９２μｍ又は２１０
μｍに変えた以外は実施例１と同様にして成形品を得た
。得られた成形品は、実施例１と同様に外観不良がなく
、高級な外観を呈した。Example 2.3 The average equivalent diameter of the aluminum particles used was 92 μm or 210 μm
A molded article was obtained in the same manner as in Example 1 except that the diameter was changed to μm. As in Example 1, the obtained molded product had no appearance defects and had a high-quality appearance.
実施例４，５
アルミ粒子の含量をＡＢＳ樹脂１００容量部に対して、
０．１容量部又は２．５容量部に変えた以外は実施例１
と同様にして成形品を得た。得られた成形品は、実施例
１と同様に外観不良がなく、高級な外観を呈した。Examples 4 and 5 The content of aluminum particles was determined based on 100 parts by volume of ABS resin.
Example 1 except that it was changed to 0.1 part by volume or 2.5 parts by volume
A molded article was obtained in the same manner as above. As in Example 1, the obtained molded product had no appearance defects and had a high-quality appearance.
実施例６，７
アルミ粒子の平均形状比を１ ／ ７．２又は１７１．
６に変えた以外は実施例１と同様にして成形品を得た。Examples 6 and 7 The average shape ratio of aluminum particles was 1/7.2 or 171.
A molded article was obtained in the same manner as in Example 1 except that the sample was changed to No. 6.
得られた成形品は、実施例１と同様に外観不良がなく、
高級な外観を呈した。The obtained molded product had no defects in appearance as in Example 1, and
It had a high-class appearance.
実施例８．９
着色ポリカーボネート樹脂１００容量部と平均形状比１
／１．６（平均相当径４２μｍ）又は、１／７．２（平
均相当径５０μｍ）の２種のアルミ粒子を１．５容量部
の材料を用い実施例１の成形品を作った、得られた成形
品の反射率上昇率は１／１．６のものが２８％、１ ／
７．２のものが９７％であった。得られた成形品は実
施例１と同様に外観不良がなく、高級外観を呈した。Example 8.9 100 parts by volume of colored polycarbonate resin and average shape ratio of 1
The molded product of Example 1 was made using 1.5 parts by volume of two types of aluminum particles: /1.6 (average equivalent diameter 42 μm) and 1/7.2 (average equivalent diameter 50 μm). The reflectance increase rate of the molded product was 28% for the 1/1.6 product, and 28% for the 1/1.6 product.
7.2 was 97%. As in Example 1, the obtained molded product had no defects in appearance and had a high-quality appearance.
比較例１
着色ＡＢＳ樹脂１００容量部に対し、平均相当径８μｍ
、平均形状比１ ／ １．４のアルミニウム粒子を０．
０３容量部含存し、実施例１と同様の成形条件により成
形した。Comparative Example 1 Average equivalent diameter 8 μm for 100 volume parts of colored ABS resin
, aluminum particles with an average shape ratio of 1/1.4 were
03 parts by volume was contained, and molding was carried out under the same molding conditions as in Example 1.
得られた成形品の反射率はアルミニウム粒子を含まない
状態より７％高められていた。The reflectance of the obtained molded article was 7% higher than that without aluminum particles.
しかし、ウェルド、ツヤムラ、ヒケ等が目立ちキズつき
方も通常のＡＢＳとさ程変わらず、高級外観を呈するも
のとしては使用しえないものであった。However, welds, uneven gloss, sink marks, etc. were noticeable, and the scratches were not much different from ordinary ABS, so it could not be used as a material with a high-class appearance.
比較例２
実施例１と同様なことをアルミニウム粒子を含まないＡ
ＢＳ樹脂にて行った。ツヤムラ、ヒケ等がはっきりと目
立ち、製品としては使用しえない程度のものであった。Comparative Example 2 The same procedure as in Example 1 was carried out using A without aluminum particles.
This was done using BS resin. The unevenness, sink marks, etc. were clearly noticeable and the product could not be used as a product.
（表面硬度３Ｂ）〔発明の効果〕
本発明の樹脂成形品は、ウェルドマークがなく、ツヤム
ラ、ヒケ、シルバーストリーク等による外観不良がなく
、しかもキズによる外観の著しい損傷がなく、従来達成
し得なかった、カメラ外装カバー、タイプライタ−外装
、ＯＡｉ器外装等の高級モールド品にも使用し得る銀河
調外観を呈し、プラスチック外観デザインの枠を広げる
ことが可能となる。特に、染料着色された熱可塑性樹脂
を使用した場合にその効果は著しく、複雑形状品にも応
用できる。(Surface hardness 3B) [Effects of the invention] The resin molded product of the present invention has no weld marks, no appearance defects due to uneven gloss, sink marks, silver streaks, etc., and no significant damage to the appearance due to scratches, which could not be achieved conventionally. It exhibits a galaxy-like appearance that can be used for high-quality molded products such as camera exterior covers, typewriter exteriors, and OAi device exteriors, which have not been available before, making it possible to expand the boundaries of plastic exterior design. In particular, the effect is remarkable when dye-colored thermoplastic resin is used, and it can be applied to products with complex shapes.
また、外観不良を緩和するための設計の制約が解除され
、設計の自由度を広げられ、生産性も高い。In addition, design constraints for alleviating appearance defects are removed, the degree of freedom in design is expanded, and productivity is high.
第１図（ａ）は実施例において作製した本発明の樹脂成
形品の平面図、第１図（ｂ）は第１図（ａ）中Ａ−Ａ
’断面図である。
第２図は従来の金属充填樹脂の流動断面図、第３図は金
属充填樹脂の成形後断面図、第４図及び第５図は平均形
状比１／１０以下の光沢粒子を用いた場合の成形前後に
おける粒度分布（頻度分布）を示すグラフである。
゛
第６図及び第７図は、それぞれ、樹脂成形品におけるツ
ヤムラ、ヒケ等の発生箇所を示すための断面図である。
１・・・樹脂成形品、２．３・・・厚肉部、４．５・・
・薄肉部、２１・・・金属粉、２２・・・樹脂のみの層
、２３・・・ウェルドマーク。
代理人 弁理士 山 下 穣 子
弟１図
（０） （ｂ）八１
第２図 第３図
クスFIG. 1(a) is a plan view of the resin molded product of the present invention produced in the example, and FIG. 1(b) is A-A in FIG. 1(a).
'This is a cross-sectional view. Figure 2 is a cross-sectional view of the flow of a conventional metal-filled resin, Figure 3 is a cross-sectional view of the metal-filled resin after molding, and Figures 4 and 5 are a flow diagram of a conventional metal-filled resin using glossy particles with an average shape ratio of 1/10 or less. It is a graph showing particle size distribution (frequency distribution) before and after molding.
6 and 7 are cross-sectional views showing locations where uneven gloss, sink marks, etc. occur in a resin molded product, respectively. 1... Resin molded product, 2.3... Thick wall part, 4.5...
- Thin wall part, 21...Metal powder, 22...Layer made only of resin, 23...Weld mark. Agent Patent Attorney Minoru Yamashita Children Figure 1 (0) (b) 81 Figure 2 Figure 3 Kusu
Claims (1)
３００μｍ、平均形状比１／８〜１の光沢を有する粒子
０．０５〜５．０容量部含有し、反射率が前記光沢を有
する粒子を含まない状態よりも１５％以上高められてい
ることを特徴とする樹脂成形品。Average equivalent diameter 10 to 100 parts by volume of thermoplastic resin
Contains 0.05 to 5.0 parts by volume of glossy particles with a diameter of 300 μm and an average shape ratio of 1/8 to 1, and the reflectance is increased by 15% or more compared to the state without the glossy particles. Characteristic resin molded products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60236390A JPH0699594B2 (en) | 1985-10-24 | 1985-10-24 | Resin molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60236390A JPH0699594B2 (en) | 1985-10-24 | 1985-10-24 | Resin molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6296566A true JPS6296566A (en) | 1987-05-06 |
| JPH0699594B2 JPH0699594B2 (en) | 1994-12-07 |
Family
ID=17000063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60236390A Expired - Lifetime JPH0699594B2 (en) | 1985-10-24 | 1985-10-24 | Resin molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0699594B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632308U (en) * | 1992-10-08 | 1994-04-26 | 株式会社サトー | Label pitch switching device for label sticking machine |
| JPH06212068A (en) * | 1993-01-20 | 1994-08-02 | Teijin Chem Ltd | Reinforced aromatic polycarbonate resin composition |
| US7449239B2 (en) | 2003-04-16 | 2008-11-11 | Basf Aktiengesellschaft | Coated metallic luster pigments for pigmenting high molecular weight materials |
| US7488764B2 (en) | 2003-01-23 | 2009-02-10 | Sabic Innovative Plastics Ip B.V. | Polymer encapsulation of high aspect ratio materials and methods of making same |
| US7553887B2 (en) | 2002-08-22 | 2009-06-30 | Prime Polymer Co., Ltd. | Resin composition for automotive parts |
| JP2010008371A (en) * | 2008-06-30 | 2010-01-14 | Hitachi Ltd | Flammable gas sensor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2011052738A1 (en) * | 2009-10-30 | 2013-03-21 | 出光興産株式会社 | Polycarbonate resin composition, polycarbonate resin molded article and method for producing the same |
| JP2011094070A (en) * | 2009-10-30 | 2011-05-12 | Idemitsu Kosan Co Ltd | Polycarbonate resin composition, polycarbonate resin molded article, and method for manufacturing the molded article |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50129651A (en) * | 1974-04-04 | 1975-10-14 | ||
| JPS5136242A (en) * | 1974-09-21 | 1976-03-27 | Toyo Aluminium Kk | |
| JPS54114534A (en) * | 1978-02-28 | 1979-09-06 | Fukuda Metal Foil Powder | Metal powder pigment for coloring synthetic resin and synthetic resin composition using same |
| JPS57126848A (en) * | 1981-01-30 | 1982-08-06 | Asahi Chem Ind Co Ltd | Resin composition having metallic luster |
-
1985
- 1985-10-24 JP JP60236390A patent/JPH0699594B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50129651A (en) * | 1974-04-04 | 1975-10-14 | ||
| JPS5136242A (en) * | 1974-09-21 | 1976-03-27 | Toyo Aluminium Kk | |
| JPS54114534A (en) * | 1978-02-28 | 1979-09-06 | Fukuda Metal Foil Powder | Metal powder pigment for coloring synthetic resin and synthetic resin composition using same |
| JPS57126848A (en) * | 1981-01-30 | 1982-08-06 | Asahi Chem Ind Co Ltd | Resin composition having metallic luster |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632308U (en) * | 1992-10-08 | 1994-04-26 | 株式会社サトー | Label pitch switching device for label sticking machine |
| JPH06212068A (en) * | 1993-01-20 | 1994-08-02 | Teijin Chem Ltd | Reinforced aromatic polycarbonate resin composition |
| US7553887B2 (en) | 2002-08-22 | 2009-06-30 | Prime Polymer Co., Ltd. | Resin composition for automotive parts |
| US7488764B2 (en) | 2003-01-23 | 2009-02-10 | Sabic Innovative Plastics Ip B.V. | Polymer encapsulation of high aspect ratio materials and methods of making same |
| US7449239B2 (en) | 2003-04-16 | 2008-11-11 | Basf Aktiengesellschaft | Coated metallic luster pigments for pigmenting high molecular weight materials |
| JP2010008371A (en) * | 2008-06-30 | 2010-01-14 | Hitachi Ltd | Flammable gas sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0699594B2 (en) | 1994-12-07 |
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