JP3386511B2 - Filler for colored resin molded product and method for producing the same - Google Patents
Filler for colored resin molded product and method for producing the sameInfo
- Publication number
- JP3386511B2 JP3386511B2 JP13430293A JP13430293A JP3386511B2 JP 3386511 B2 JP3386511 B2 JP 3386511B2 JP 13430293 A JP13430293 A JP 13430293A JP 13430293 A JP13430293 A JP 13430293A JP 3386511 B2 JP3386511 B2 JP 3386511B2
- Authority
- JP
- Japan
- Prior art keywords
- filler
- aluminum oxide
- aluminum hydroxide
- pigment
- molded product
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/40—Compounds of aluminium
- C09C1/407—Aluminium oxides or hydroxides
Description
【０００１】[0001]
【産業上の利用分野】本発明は、樹脂成形物用充填材と
して使用される特に着色された水酸化アルミニウムとそ
の製法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a particularly colored aluminum hydroxide used as a filler for resin moldings and a process for producing the same.
【０００２】[0002]
【従来の技術】樹脂成形物はあらゆる分野に利用され、
成形物の物性を補うために種々の充填材が用いられてい
る。充填材の主な材料は水酸化アルミニウム、炭酸カル
シウムなどの白色微粒子である。ここで、成形物を着色
する場合においては、樹脂に顔料あるいは染料などの色
彩原料を被着することで樹脂自体が着色し、樹脂成形物
として色彩を有するものになる。2. Description of the Related Art Resin moldings are used in all fields,
Various fillers are used to supplement the physical properties of molded products. The main material of the filler is white fine particles such as aluminum hydroxide and calcium carbonate. Here, in the case of coloring the molded product, the resin itself is colored by coating the resin with a color material such as a pigment or a dye, so that the resin molded product has a color.
【０００３】一方、樹脂成形物における樹脂成分と充填
材の体積比は、概ね、３０：７０程度であり、充填材が
きわめて大きな部分を占めているので、樹脂を着色して
この充填材で覆うためには余程分散状態を良くする必要
がある。このために、生産ロットが複数に亘る場合に
は、色管理を徹底しないと色違いが生ずるおそれがあ
る。On the other hand, the volume ratio of the resin component to the filler in the resin molded product is about 30:70, and the filler occupies an extremely large portion. Therefore, the resin is colored and covered with this filler. In order to do so, it is necessary to improve the dispersion state so much. For this reason, in the case where there are a plurality of production lots, color difference may occur unless color management is thoroughly performed.
【０００４】この改善策として、樹脂成形物の大半を占
める充填材自体に着色された物を用いれば、色の管理は
大巾に容易になることが考えられる。色差の管理は、色
差計により行われるのが一般的であるが、製品が微妙な
色彩効果を要求する場合や２色以上の色が混和している
ような場合はやはり人間の視覚にうったえるところ大で
ある。従来充填材に着色する方法として染色する方法が
一般的に知られているが、必ず乾燥工程を必要としてお
りコスト高となる。一方、少量多色を求める場合には染
色法は手間がかかりすぎるので単純にするため例えば単
に水酸化アルミニウム粒子に着色顔料を混ぜ撹拌しても
互いに混在するだけであり樹脂溶液に投入した場合水酸
化アルミニウムと着色顔料は分離し色むらを生ずる。As a remedy for this, it is conceivable that color management will be greatly facilitated if a colored material is used for the filler itself, which occupies most of the resin molded product. Color difference management is generally performed by a color difference meter, but when a product requires a delicate color effect or when two or more colors are mixed, it is still appealing to the human eye. Is large. Conventionally, a dyeing method is generally known as a method for coloring a filler, but a drying step is always required, which results in high cost. On the other hand, when a small amount of multiple colors are required, the dyeing method is too time-consuming and therefore simple, for example, the colored pigments are simply mixed with the aluminum hydroxide particles and agitated. Aluminum oxide and the color pigment separate and cause uneven color.
【０００５】[0005]
【発明が解決しようとする課題】解決しようとする課題
は、少量多色にも対応できる着色した充填材とその着色
方法を提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a colored filler and a method for coloring the same, which can be used in a small amount of many colors.
【０００６】[0006]
【課題を解決するための手段及び作用】本発明の着色さ
れた樹脂成形物は、水酸化アルミニウムに着色顔料と、
比表面積が１００〜４００m2／ｇであり１次粒子の平均
径が５ｍμ〜２０ｍμの範囲にある高温焼成して得られ
る高純度の超微粒子状無水シリカ（SiO2）及び比表面積
が３０〜１３０m2／ｇであり１次粒子の平均径が１５ｍ
μ〜２５ｍμの範囲にある高純度の超微粒子状酸化アル
ミ（Al2O3）の混合物０．１〜２wt％を添加し均等に混
合分散して得られてなるものであり、充填材として使用
した場合、色の管理が大巾に容易になり、製造ロット間
の色ぶれが僅少におさえられる。又、天然石を摸した石
調柄について用いると、きわだった混色状況を呈し、複
数の異色層を一体に成形できる。Means and Actions for Solving the Problems The colored resin molded product of the present invention comprises aluminum hydroxide and a coloring pigment,
High-purity ultrafine particulate anhydrous silica (SiO 2 ) obtained by high-temperature firing having a specific surface area of 100 to 400 m 2 / g and an average diameter of primary particles in the range of 5 to 20 mμ and a specific surface area of 30 to 130 m 2 / g and average diameter of primary particles is 15 m
It is obtained by adding 0.1 to 2 wt% of a mixture of high-purity ultrafine aluminum oxide (Al 2 O 3 ) in the range of μ to 25 mμ, and mixing and dispersing it evenly. Used as a filler. In this case, color management is greatly facilitated, and color blurring between manufacturing lots is suppressed to a slight extent. Further, when a stone pattern made of natural stone is used, a remarkable color mixture state is exhibited, and a plurality of different color layers can be integrally formed.
【０００７】又、無水シリカ（SiO2）と酸化アルミ（Al
2O3）の混合比が１０：１ないし１：１の重量比とした
ものであり、これにより着色顔料の水酸化アルミニウム
への密着性が高められる。Further, anhydrous silica (SiO 2 ) and aluminum oxide (Al
The mixing ratio of 2 O 3 ) is 10: 1 to 1: 1 by weight, and thereby the adhesion of the coloring pigment to aluminum hydroxide is enhanced.
【０００８】更にその製法として、（−）に帯電する水
酸化アルミニウム及び着色顔料に対して、（＋）に帯電
する高純度の超微粒子状酸化アルミ（Al2O3）を介在さ
せ静電荷による吸引力を利用し着色顔料を吸着するよう
にしたので、水酸化アルミニウムに対し着色顔料が酸化
アルミ（Al2O3）を介し効果的に結合することで着色さ
れた充填材が得られる。Further, as a manufacturing method thereof, a high-purity ultrafine particulate aluminum oxide (Al 2 O 3 ) charged to (+) is interposed between the aluminum hydroxide and the color pigment charged to (-) and electrostatic charge is applied. Since the coloring pigment is adsorbed by utilizing the suction force, the coloring pigment is effectively bonded to aluminum hydroxide through aluminum oxide (Al 2 O 3 ) to obtain a colored filler.
【０００９】[0009]
【実施例】本発明に用いられる無水シリカは１０００℃
内外の高温中で生成されるので、水分を殆ど含んでいな
い。この高純度超微粒子はすぐれた分散、懸濁効果を発
揮する。縦長型のミキサー内に水酸化アルミニウムを単
独で入れて、撹拌羽根を回転させても、羽根の周辺部の
みが流動し、全体としては水酸化アルミニウムは流動し
ない。水酸化アルミニウムに対する流動化剤としての無
水シリカの添加量の適正値を知るために次のテストを行
った。水酸化アルミニウム１００重量部に対し０．０５
重量部から順次無水シリカの添加量を増加させて流動状
況を観察した。全体が流動し始めるのは０．１重量部あ
たりから始まり０．８ないし１．０重量部近辺がきわめ
て良好な流動状況を示す。更に増量すると次第に吹き上
げるようになり最大限２重量部までと判定した。混合分
散および均質さでは問題ないと思われたが、長期保存し
たとき多少の偏折がみられ、樹脂成形時のホッパー内で
も無水シリカの浮き上がりがみられた。EXAMPLES Anhydrous silica used in the present invention is 1000 ° C.
Since it is generated at high temperature inside and outside, it contains almost no water. The high-purity ultrafine particles exhibit excellent dispersion and suspension effects. Even if aluminum hydroxide alone is put into a vertically long mixer and the stirring blade is rotated, only the peripheral portion of the blade flows, and aluminum hydroxide does not flow as a whole. The following test was conducted in order to know the proper value of the amount of anhydrous silica added as a fluidizing agent to aluminum hydroxide. 0.05 to 100 parts by weight of aluminum hydroxide
The flow condition was observed by sequentially increasing the amount of anhydrous silica added from the parts by weight. The whole begins to flow around 0.1 parts by weight, and a very good flow condition is shown near 0.8 to 1.0 parts by weight. When the amount was further increased, it was gradually blown up, and it was determined that the maximum amount was 2 parts by weight. Mixing and dispersion and homogeneity seemed to be no problem, but some deviation was observed after long-term storage, and anhydrous silica floated up in the hopper during resin molding.
【００１０】次に着色顔料の水酸化アルミニウムに対す
る分散性を調べた。ミキサー内における流動性を良くす
るために無水シリカを添加し、添加量に対応して顔料の
定着性を調べ表１に示した。Next, the dispersibility of the color pigment in aluminum hydroxide was examined. Anhydrous silica was added to improve the fluidity in the mixer, and the fixing property of the pigment was examined according to the amount added, and the results are shown in Table 1.
【００１１】[0011]
【表１】 [Table 1]
【００１２】酸化アルミの効果についても同じ手順で分
散性を調べた。この場合は水酸化アルミニウムのミキサ
ー内に於ける流動化に大きな効果は示さないが着色顔料
の定着性に大きな効果がある。この点は酸化アルミの超
微粒子が（＋）に帯電する性質をもっていることに起因
している。水酸化アルミニウム、無水シリカは（−）に
帯電し、着色顔料は有機顔料の一部を除き大半は（−）
に帯電する。従ってミキサー内で粒子が対流するとき同
一電荷に帯電する場合はきわめて至近距離に粒子同士は
近づけない。従って一見均質な分散状態にあっても、水
酸化アルミニウム粒子と着色顔料が互いに付着し合って
いるかどうかは疑問である。Regarding the effect of aluminum oxide, the dispersibility was examined by the same procedure. In this case, there is no great effect on the fluidization of aluminum hydroxide in the mixer, but there is a great effect on the fixing property of the color pigment. This point is due to the fact that the ultrafine particles of aluminum oxide have the property of being (+) charged. Aluminum hydroxide and anhydrous silica are charged (-), and most of the coloring pigments are (-) except some organic pigments.
To be charged. Therefore, when the particles are charged with the same electric charge when convection occurs in the mixer, the particles are not brought close to each other at a very short distance. Therefore, it is questionable whether the aluminum hydroxide particles and the coloring pigment adhere to each other even in a seemingly homogeneous dispersion state.
【００１３】酸化アルミの効果を具体的に知るために、
表１の中から平均的傾向を示している水酸化アルミニウ
ムの１００重量部に対し、１重量部の無水シリカを添加
すると共に、酸化アルミを０．５重量部加えてミキサー
にかけ、ついで無機の着色顔料の標準的なものとしてダ
イピロキサイドブルー（大日精化＃９４１０）を０．０
２〜１０．０重量部適宜添加してそれぞれの分散状態を
調べた。評価方法は、表１と同じものである。結果を表
２に示した。In order to know the effect of aluminum oxide specifically,
From 100 parts by weight of aluminum hydroxide showing an average tendency from Table 1, 1 part by weight of anhydrous silica is added and 0.5 part by weight of aluminum oxide is added to a mixer, and then inorganic coloring is carried out. As a standard pigment, dipyrroxide blue (Dainichiseika # 9410) 0.0
2 to 10.0 parts by weight was appropriately added to examine the dispersion state of each. The evaluation method is the same as in Table 1. The results are shown in Table 2.
【００１４】[0014]
【表２】 [Table 2]
【００１５】この結果、酸化アルミを添加することで混
合物の電荷バランスを改善し水酸化アルミニウムと着色
顔料の密着性をきわめて良い状態にしたと判断できる。
次に酸化アルミの添加量の適性値はどの範囲なのかを調
べることにした。先ず酸化アルミの添加量によって結果
がどのように変化するかをみるために無水シリカの量を
一定にして酸化アルミを０．０８〜１．２重量部の範囲
で適宜量添加した。その結果を表３に示した。As a result, it can be judged that the addition of aluminum oxide improved the charge balance of the mixture and brought the adhesion between the aluminum hydroxide and the coloring pigment into a very good state.
Next, we decided to investigate what range is the appropriate value for the amount of aluminum oxide added. First, in order to see how the result changes depending on the added amount of aluminum oxide, the amount of anhydrous silica was kept constant and aluminum oxide was added in an appropriate amount within the range of 0.08 to 1.2 parts by weight. The results are shown in Table 3.
【００１６】[0016]
【表３】 [Table 3]
【００１７】この表から酸化アルミの量は、無水シリカ
に対して適量の範囲があることが理解できる。無水シリ
カと酸化アルミ及び着色顔料の混合比率はそれぞれの添
加量を組み合わせると莫大な組合せがありこのための試
験回数が膨大となるので、一応限界と思われる割合のみ
試験し結果を表４にまとめた。From this table, it can be understood that the amount of aluminum oxide has a proper range with respect to anhydrous silica. The mixing ratios of anhydrous silica, aluminum oxide, and color pigments are enormous when the respective addition amounts are combined, and the number of tests for this is enormous. Therefore, only the ratios considered to be the limit are tested, and the results are summarized in Table 4. It was
【００１８】[0018]
【表４】 [Table 4]
【００１９】結果から判断すると無水シリカと酸化アル
ミには適切な混合比があって、その混合比内においては
顔料の添加量にはかなりの余裕があることがわかる。適
切な両者の混合比は概ね無水シリカ１０に対し酸化アル
ミ１から、同じく１に対し１の範囲とみうけられた。Judging from the results, it is understood that there is an appropriate mixing ratio between anhydrous silica and aluminum oxide, and there is a considerable margin in the amount of pigment added within the mixing ratio. An appropriate mixture ratio of both was considered to be in the range of 1 to 1 of aluminum oxide to 10 of anhydrous silica and 1 to 1 similarly.
【００２０】着色顔料が有機顔料、例えばフタロシアニ
ンブルー、リソールルビン、レーキレッド、クロムナフ
トールレッドなどの固有電荷が（＋）に帯電するものに
ついては酸化アルミは添加量が少なくなるが前記混合比
内で分散可能である。When the coloring pigment is an organic pigment such as phthalocyanine blue, resole rubin, lake red, chrome naphthol red, etc., the intrinsic charge of which is (+), aluminum oxide is added in a small amount but can be dispersed within the above mixing ratio. Is.
【００２１】本発明による具体例を説明する。被着色充
填材としてAl(OH)3の純度９９．８％からなる平均粒径
８μｍの水酸化アルミニウム微粒子（住友化学Ｃ−３０
８）１００grに対し、気相法から得られる１次粒子平均
径１２ｍμ、ＢＥＴ法による比表面積２００±２５m2／
ｇの高純度の超微粒子状無水シリカ（SiO2）を０．５gr
及び、同じく気相法で得られる１次粒子平均径２０ｍ
μ、ＢＥＴ法による比表面積１００±１５m2／ｇの高純
度超微粒子状の酸化アルミ（Al2O3）を０．１grを回転
羽根を有する縦長型のミキサーに入れ３０秒間撹拌す
る。更に着色顔料としてダイピロキサイドブルー（大日
精化＃９４１０）を０．２gr追加し３０秒間撹拌する。A specific example according to the present invention will be described. Aluminum hydroxide fine particles having an average particle size of 8 μm and made of Al (OH) 3 having a purity of 99.8% as a coloring material (Sumitomo Chemical C-30
8) with respect to 100 gr, 1 primary particles obtained from the gas phase process an average diameter 12Emumyu, specific surface area by the BET method: 200 ± 25 m 2 /
0.5 gr of high-purity ultrafine particulate anhydrous silica (SiO 2 )
Also, the average primary particle diameter obtained by the vapor phase method is 20 m.
μ, high-purity ultrafine aluminum oxide (Al 2 O 3 ) having a specific surface area of 100 ± 15 m 2 / g according to the BET method was placed in a vertically long mixer having a rotating blade and 0.1 gr was stirred for 30 seconds. Further, 0.2 gr of dipyroxide side blue (Dainichiseika Seiki # 9410) was added as a coloring pigment, and the mixture was stirred for 30 seconds.
【００２２】最初の撹拌において添加した前記無水シリ
カ（SiO2）は流動化剤として作用し、水酸化アルミニウ
ム粒子のミキサー内における流動性を良くし粒子と粒子
の間に入り込み凝集を防止する。この状態で水酸化アル
ミニウム粒子は摩擦により（−）の電荷を帯びる。又同
様に添加した前記酸化アルミ（Al2O3）は（＋）の電荷
を帯びて水酸化アルミニウム粒子との間でクーロン力に
よる吸着作用が働き互いに吸着する。The anhydrous silica (SiO 2 ) added in the first stirring acts as a fluidizing agent to improve the fluidity of the aluminum hydroxide particles in the mixer and prevent the particles from aggregating between the particles. In this state, the aluminum hydroxide particles are charged with a (-) charge by friction. Further, the aluminum oxide (Al 2 O 3 ) added in the same manner is charged with (+) and is adsorbed to the aluminum hydroxide particles by the adsorption action by Coulomb force.
【００２３】次いで投入した着色顔料は粒径が０．１〜
０．５μｍであり、本実施例に用いた材料中、水酸化ア
ルミニウム粒子に次いで大きな粒子となっている。この
着色顔料も（−）の電荷を帯びるが前述の酸化アルミ
（Al2O3）が（＋）に帯電する結果、クーロン力による
吸着作用により互いに吸着する。以上の状況から、
（＋）に帯電する酸化アルミ（Al2O3）を介して（−）
に帯電する水酸化アルミニウム粒子と着色顔料が結合し
着色されることになる。The color pigment added next has a particle size of 0.1-0.1.
It is 0.5 μm, which is the second largest particle after the aluminum hydroxide particles in the material used in this example. This coloring pigment also has a (-) charge, but as a result of the above-mentioned aluminum oxide (Al 2 O 3 ) being charged to (+), it is adsorbed to each other by the adsorption action by the Coulomb force. From the above situation,
(−) Through aluminum oxide (Al 2 O 3 ) charged to (+)
The aluminum hydroxide particles that are electrically charged with the colored pigment and the coloring pigment are combined to be colored.
【００２４】この着色方法は、調合される粒子間の電荷
量のバランスによって構成されるので、水酸化アルミニ
ウムの粒径と着色顔料の種類によって、酸化アルミ（Al
2O3）の添加量は増減する。又添加される無水シリカ（S
iO2）及び酸化アルミ（Al2O 3）は共に１０００℃近辺の
雰囲気における気相法によって作られたものを使用した
ので、１次粒子径が細かいこと、化学的純度がきわめて
高いこと（９９．８％以上）、比表面積が大きいことが
本実施例の成功に大きな役割をはたしている。This coloring method is based on the charge between the particles to be prepared.
As it is composed by the balance of quantity, aluminum hydroxide
Depending on the particle size of the um and the type of color pigment, aluminum oxide (Al
2O3) Addition amount is increased or decreased. Anhydrous silica (S
iO2) And aluminum oxide (Al2O 3) Are both around 1000 ° C
The one made by the vapor phase method in the atmosphere was used.
Therefore, the primary particle size is small and the chemical purity is extremely high.
High (99.8% or more) and large specific surface area
It plays a major role in the success of this example.
【００２５】[0025]
【発明の効果】以上のような本発明の着色された充填材
としての水酸化アルミニウム粒子を使用した樹脂成形物
は、投入する体積が樹脂に対して２〜３倍の値を有して
いるので、視覚に訴える部分の大半を占めることにな
り、製造ロット間の色ぶれを僅少におさえることができ
る。又、天然石を模した石調柄について用いると、きわ
だった混色状況を呈すると共に、沈降速度あるいは比重
の異なる充填材に着色した場合、樹脂の粘度を調整して
複数の異色層を一体に成形することができる。更に、そ
の製法によれば、水酸化アルミニウムの着色顔料での着
色を容易にするとともに顔料の密着性を高めることがで
きる。EFFECTS OF THE INVENTION The resin molding using aluminum hydroxide particles as the colored filler of the present invention as described above, has a volume of 2 to 3 times that of the resin. Therefore, it occupies most of the visually appealing part, and it is possible to suppress the color blur between the manufacturing lots. When a stone pattern simulating natural stone is used, a remarkable color mixing state is exhibited, and when a filler having a different sedimentation speed or specific gravity is colored, the viscosity of the resin is adjusted to form a plurality of different color layers integrally. be able to. Furthermore, according to the production method, coloring of aluminum hydroxide with a coloring pigment can be facilitated and the adhesion of the pigment can be enhanced.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) C09C 3/06 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) C09C 3/06
Claims (3)
面積が１００〜４００m2／ｇであり１次粒子の平均径が
５ｍμ〜２０ｍμの範囲にある高温焼成して得られる高
純度の超微粒子状無水シリカ（SiO2）及び比表面積が３
０〜１３０m2／ｇであり１次粒子の平均径が１５ｍμ〜
２５ｍμの範囲にある高純度の超微粒子状酸化アルミ
（Al2O3）の混合物０．１〜２wt％を添加し均等に混合
分散して得られてなる着色された樹脂成形物用充填材。1. High-purity ultrafine particles obtained by baking aluminum hydroxide with a color pigment and a high-temperature calcination having a specific surface area of 100 to 400 m 2 / g and an average primary particle diameter of 5 mμ to 20 mμ. Anhydrous silica (SiO 2 ) and specific surface area of 3
0 to 130 m 2 / g and the average diameter of the primary particles is 15 mμ
A colored filler for a resin molded product, which is obtained by adding 0.1 to 2 wt% of a mixture of high-purity ultrafine particulate aluminum oxide (Al 2 O 3 ) in a range of 25 μm, and mixing and dispersing the mixture evenly.
3）の混合比が１０：１ないし１：１の重量比である請
求項１に記載の樹脂成形物用充填材。2. Anhydrous silica (SiO 2 ) and aluminum oxide (Al 2 O
The filler for a resin molded product according to claim 1, wherein the mixing ratio of 3 ) is 10: 1 to 1: 1 by weight.
び着色顔料に対して、（＋）に帯電する高純度の超微粒
子状酸化アルミ（Al2O3）を介在させ静電荷による吸引
力を利用し着色顔料を吸着する請求項１又は請求項２に
記載の充填材の製法。3. A suction force by electrostatic charge is caused by interposing high-purity ultrafine particulate aluminum oxide (Al 2 O 3 ) charged in (+) against aluminum hydroxide and a color pigment charged in (-). The manufacturing method of the filler according to claim 1 or 2, wherein the coloring pigment is used to adsorb the coloring pigment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13430293A JP3386511B2 (en) | 1993-06-04 | 1993-06-04 | Filler for colored resin molded product and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13430293A JP3386511B2 (en) | 1993-06-04 | 1993-06-04 | Filler for colored resin molded product and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06345995A JPH06345995A (en) | 1994-12-20 |
| JP3386511B2 true JP3386511B2 (en) | 2003-03-17 |
Family
ID=15125114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13430293A Expired - Fee Related JP3386511B2 (en) | 1993-06-04 | 1993-06-04 | Filler for colored resin molded product and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3386511B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997020892A2 (en) * | 1995-11-23 | 1997-06-12 | Andrew David Pepper | Pigments admixed with lubricating agents |
| EP3813553A4 (en) * | 2018-06-28 | 2022-03-16 | Wm. Wrigley Jr. Company | Titanium free opacifying compositions |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62250942A (en) * | 1986-04-23 | 1987-10-31 | Nara Kikai Seisakusho:Kk | Method for spreading and fixing metal to surface of solid particle |
| FR2605011B1 (en) * | 1986-10-10 | 1988-12-30 | Rhone Poulenc Chimie | COLORED PIGMENTS, IN PARTICULAR MAGNETIC PIGMENTS, THEIR PREPARATION METHODS AND THEIR APPLICATIONS, IN PARTICULAR FOR THE PREPARATION OF DEVELOPING POWDERS. |
| JPH0692252B2 (en) * | 1988-09-09 | 1994-11-16 | 昭和電工株式会社 | Heat resistant aluminum hydroxide and method for producing the same |
| JPH02137305A (en) * | 1988-11-18 | 1990-05-25 | Nec Corp | High frequency impedance transformer |
-
1993
- 1993-06-04 JP JP13430293A patent/JP3386511B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06345995A (en) | 1994-12-20 |
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