JPH0739519B2 - Colored thermoplastic resin composition and method for producing the same - Google Patents
Colored thermoplastic resin composition and method for producing the sameInfo
- Publication number
- JPH0739519B2 JPH0739519B2 JP23898088A JP23898088A JPH0739519B2 JP H0739519 B2 JPH0739519 B2 JP H0739519B2 JP 23898088 A JP23898088 A JP 23898088A JP 23898088 A JP23898088 A JP 23898088A JP H0739519 B2 JPH0739519 B2 JP H0739519B2
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- JP
- Japan
- Prior art keywords
- parts
- weight
- resin
- fatty acid
- styrene
- 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
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- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、便座等の衛生機器、電話機、家電製品のハウ
ジング等の各種成形品の製造用材料として有用な着色し
たスチレン系樹脂の組成物及びその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a colored styrenic resin composition useful as a material for manufacturing various molded articles such as sanitary equipment such as toilet seats, telephones, and housings of home electric appliances. And a manufacturing method thereof.
（従来の技術） ABS樹脂に代表されるゴム含有スチレン系樹脂は機械的
性質の均衡に優れているので、各種製品の成形材料とし
て広く使用されているが、その場合特に色外観が重要視
されることが多い。(Prior Art) Rubber-containing styrenic resins represented by ABS resins are widely used as molding materials for various products because of their excellent balance of mechanical properties. In that case, color appearance is particularly important. Often.
そして、ABS樹脂を製造する場合、加工性や流動性を向
上させるため滑剤のアルキレン−ビス−脂肪酸アミドを
樹脂中に添加することが多い。In the case of producing an ABS resin, an alkylene-bis-fatty acid amide as a lubricant is often added to the resin in order to improve processability and fluidity.
このようなアルキレン−ビス−脂肪酸アミドを含有する
ABS樹脂を着色する場合、通常酸化チタンをベースとし
た各種染、顔料着色剤が用いられ、この際酸化チタン等
染、顔料を樹脂中に均一に分散させるために脂肪酸金属
塩等の分散剤が使用される。Containing such alkylene-bis-fatty acid amides
When coloring an ABS resin, various dyes and pigment colorants based on titanium oxide are usually used. At this time, a dye such as titanium oxide is used, and a dispersant such as a fatty acid metal salt is used to uniformly disperse the pigment in the resin. used.
ところが、着色剤として酸化チタンを含有し、そして脂
肪酸金属塩等の分散剤を含有する着色ABS樹脂を射出成
形機にて成形すると，なぜか成品に黒いすじが発生する
場合がしばしばある。この外観不良現象を黒条と称して
いる。However, when a colored ABS resin containing titanium oxide as a colorant and a dispersant such as a fatty acid metal salt is molded by an injection molding machine, black streaks often occur in the product for some reason. This appearance defect phenomenon is called a black stripe.
（発明が解決しようとする課題） 本発明は、ABS樹脂に代表されるスチレン系樹脂の着色
した成形品に観察される黒条発生の不良現象を解決する
ことを目的としている。(Problems to be Solved by the Invention) An object of the present invention is to solve the defective phenomenon of black streak observed in a colored molded product of styrene resin represented by ABS resin.
（課題を解決するための手段） 本発明は、 （１） アルキレン−ビス−脂肪酸アミドを含有するス
チレン系樹脂を、酸化アルミニウムで表面処理された酸
化チタンを必須成分とする着色剤で着色した樹脂組成物
において、着色剤の分散剤としてアルキレン−ビス−脂
肪酸アミドを上記スチレン系樹脂100重量部に対し0.1〜
２重量部及び／又は脂肪酸亜鉛を上記スチレン系樹脂10
0重量部に対し0.1〜２重量部使用して着色したことを特
徴とした着色樹脂組成物。(Means for Solving the Problem) The present invention provides (1) a resin obtained by coloring a styrene-based resin containing an alkylene-bis-fatty acid amide with a coloring agent containing titanium oxide surface-treated with aluminum oxide as an essential component. In the composition, the alkylene-bis-fatty acid amide as a dispersant for the colorant is 0.1 to 100 parts by weight of the styrene resin.
2 parts by weight and / or fatty acid zinc is added to the styrene resin 10
A colored resin composition, which is colored by using 0.1 to 2 parts by weight with respect to 0 parts by weight.
（２） アルキレン−ビス−脂肪酸アミドを含有するス
チレン系樹脂に、酸化アルミニウムで表面処理された酸
化チタンを必須成分とする着色剤と、上記スチレン系樹
脂100重量部に対し0.1〜２重量部のアルキレン−ビス−
脂肪酸アミド及び／又は上記スチレン系樹脂100重量部
に対し0.1〜２重量部の脂肪酸亜鉛を添加することを特
徴とする着色した樹脂組成物の製造方法 に関するものである。(2) A styrene-based resin containing an alkylene-bis-fatty acid amide, a colorant containing titanium oxide surface-treated with aluminum oxide as an essential component, and 0.1 to 2 parts by weight per 100 parts by weight of the styrene-based resin. Alkylene-bis-
It relates to a method for producing a colored resin composition, characterized in that 0.1 to 2 parts by weight of fatty acid zinc is added to 100 parts by weight of a fatty acid amide and / or the styrene resin.
本発明に用いるスチレン系樹脂は特に制限はなく、具体
例を示すなら、アクリロニトリル−ブタジエン−スチレ
ン共重合体、アクリロニトリル−ブタジエン−α−メチ
ル−スチレン共重合体、ポリスチレン、アクリロニトリ
ル−スチレン共重合体、及びこれらのブレンド物等があ
げられる。The styrene resin used in the present invention is not particularly limited, and if specific examples are shown, acrylonitrile-butadiene-styrene copolymer, acrylonitrile-butadiene-α-methyl-styrene copolymer, polystyrene, acrylonitrile-styrene copolymer, And blends thereof.
又、本発明に用いる酸化チタンの粒径には制限はなく、
普通粒子（0.2〜0.3μｍ）から微粒子（0.01〜0.02μ
ｍ）まであらゆる大きさのものを使用できる。通常用い
る酸化チタンの表面処理剤量は、酸化チタン100重量部
に対し酸化アルミニウム0.1〜７重量部である。The particle size of titanium oxide used in the present invention is not limited,
From ordinary particles (0.2 to 0.3 μm) to fine particles (0.01 to 0.02 μm)
Any size up to m) can be used. The amount of the surface treatment agent of titanium oxide usually used is 0.1 to 7 parts by weight of aluminum oxide based on 100 parts by weight of titanium oxide.
このような酸化チタンをスチレン系樹脂に添加する際に
は分散剤を使用するが、使用する分散剤はアルキレン−
ビス−脂肪酸アミド及び／又は脂肪酸亜鉛であれば特に
問題はなく、具体例を示すなら、前者はメチレン−ビス
−ステアリルアミド、エチレン−ビス−ステアリルアミ
ド等が使用され、かつこれらは樹脂の滑剤としても作用
する。後者はステアリン酸亜鉛、ラウリン酸亜鉛、リシ
ノール酸亜鉛、２−エチル−ヘキソイン酸亜鉛等が使用
される。又、必要に応じて、酸化チタン以外の着色剤、
耐候（光）剤、酸化防止剤、可塑剤、湿潤剤、分散樹脂
等の添加物を加えることもできる。A dispersant is used when such titanium oxide is added to the styrene resin, and the dispersant used is alkylene-
There is no particular problem as long as it is a bis-fatty acid amide and / or a fatty acid zinc, and in the case of specific examples, the former uses methylene-bis-stearyl amide, ethylene-bis-stearyl amide, etc., and these are used as lubricants for resins. Also works. As the latter, zinc stearate, zinc laurate, zinc ricinoleate, zinc 2-ethyl-hexoate and the like are used. If necessary, a coloring agent other than titanium oxide,
It is also possible to add additives such as weathering (light) agents, antioxidants, plasticizers, wetting agents, and dispersion resins.
例えば、耐候（光）剤としては特に制限はなく、具体例
を示すなら、ヒンダードアミン系、ベンゾフェノン系、
ベンゾトリアゾール系等が使用される。又、酸化防止剤
としては特に制限はなく、具体例を示すなら、フェノー
ル系、ヒンダードフェノール系等が使用される。For example, the weathering (light) agent is not particularly limited, and specific examples thereof include hindered amine type, benzophenone type,
A benzotriazole type or the like is used. Further, the antioxidant is not particularly limited, and if a specific example is shown, a phenol type, a hindered phenol type or the like is used.
表面処理された酸化チタンの樹脂への添加量について
は、樹脂100重量部に対し0.1〜10重量部が好ましく、更
に好ましくは0.5〜5.0重量部であるが、0.1重量部より
少ないと着色が不十分であり、10重量部を超えると樹脂
の強度低下を引き起こす。The amount of the surface-treated titanium oxide added to the resin is preferably 0.1 to 10 parts by weight, and more preferably 0.5 to 5.0 parts by weight, based on 100 parts by weight of the resin. It is sufficient, and when it exceeds 10 parts by weight, the strength of the resin is lowered.
又、着色剤の分散剤として用いるアルキレン−ビス−脂
肪酸アミドの樹脂への添加量については、樹脂100重量
部に対し0.1〜２重量部が好ましいが、0.1重量部より少
ないと着色剤の分散が不十分であり、２重量部を超える
と押出機にてペレット化が困難となる不具合が生じる。The amount of the alkylene-bis-fatty acid amide used as a dispersant for the colorant is preferably 0.1 to 2 parts by weight per 100 parts by weight of the resin, but if it is less than 0.1 parts by weight, the colorant is dispersed. If it exceeds 2 parts by weight, there is a problem that pelletization is difficult in the extruder.
又、脂肪酸亜鉛の樹脂への添加量については、樹脂100
重量部に対し0.1〜２重量部が好ましいが、0.1重量部よ
り少ないと着色剤の分散が不十分であり、２重量部を超
えると押出機にてペレット化が困難となる不具合が生じ
る。For the amount of fatty acid zinc added to the resin, refer to Resin 100
0.1 to 2 parts by weight is preferable with respect to parts by weight, but if it is less than 0.1 parts by weight, the dispersion of the colorant is insufficient, and if it exceeds 2 parts by weight, pelletization by an extruder becomes difficult.
（実施例） 以下、実施例及び比較例によって本発明を更に詳しく説
明する。実施例及び比較例中に記載される部はすべて重
量基準で示した。(Example) Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. All parts described in Examples and Comparative Examples are shown by weight.
実施例１〜11 ABS樹脂（滑剤を含まないABS樹脂100部にアルキレン−
ビス−ステアリルアミド（EB−Ｓ）を1.0部添加した）1
00部と、表−１に示した酸化チタン、分散剤、分散樹脂
及び補色剤を、押出機に供給し、シリンダー設定温度22
0〜230℃にて混練し、11種の着色ペレット（樹脂組成
物）を得た。Examples 1 to 11 ABS resin (Alkylene-based on 100 parts of ABS resin without lubricant)
Bis-stearylamide (EB-S) (1.0 part was added) 1
00 parts, titanium oxide, the dispersant, the dispersant resin and the complementary colorant shown in Table 1 were supplied to the extruder, and the cylinder set temperature 22
The mixture was kneaded at 0 to 230 ° C to obtain 11 kinds of colored pellets (resin composition).
このペレットを東芝機械（株）製IS−80CNV射出成形機
により成形し、100mm×100mm×2mmの平板状成形品を50
枚作製した。These pellets were molded by Toshiba Machine Co., Ltd. IS-80CNV injection molding machine, and 100 mm × 100 mm × 2 mm flat plate molded product was molded into 50
One sheet was prepared.
この時の成形条件を次に示す。The molding conditions at this time are shown below.
（１） シリンダー設定温度:220℃ （２） FCV:40mm/sec （３） スクリュー回転数:60r.p.m. （４） 射圧:60〜70kg/cm2 （５） 背圧:0kg/cm2 （６） 計量ストローク:60〜70mm （７） 金型温度:50℃ 得られた成形品の黒条発生状態を観察し、黒条の発生し
た成形品の枚数を調べた。結果を表−１に示す。(1) Cylinder set temperature: 220 ℃ (2) FCV: 40mm / sec (3) Screw rotation speed: 60r.pm (4) Injection pressure: 60 to 70kg / cm 2 (5) Back pressure: 0kg / cm 2 ( 6) Measuring stroke: 60-70 mm (7) Mold temperature: 50 ° C The state of occurrence of black stripes in the obtained molded product was observed, and the number of molded products with black stripes was examined. The results are shown in Table-1.
比較例１〜11 ABS樹脂（滑剤を含まないABS樹脂100部にEB−Ｓを1.0部
添加した）100部と、表−２に示した酸化チタン、分散
剤、分散樹脂及び補色剤を押出機に供給し、シリンダー
設定温度220〜230℃にて混練し、11種の着色ペレット
（樹脂組成物）を得た。Comparative Examples 1 to 11 100 parts of ABS resin (100 parts of ABS resin containing no lubricant was added with 1.0 part of EB-S), titanium oxide, a dispersant, a dispersant resin and a complementary colorant shown in Table 2 were extruded. And kneaded at a cylinder set temperature of 220 to 230 ° C. to obtain 11 kinds of colored pellets (resin composition).
以下、実施例と同様にして平板状成形品を作製し、黒条
発生状態を観察した。結果を表−２に示す。Hereinafter, a flat plate-shaped molded product was produced in the same manner as in the examples, and the state of occurrence of black stripes was observed. The results are shown in Table-2.
但し、表中のZn−Stはステアリン酸亜鉛、EB−Ｓはエチ
レン−ビス−ステアリルアミド、Mg−Stはステアリン酸
マグネシウムを意味する。又、PSは低分子量ポリスチレ
ン、ASは低分子のアクリロニトリル−スチレン共重合体
を意味する。However, Zn-St in the table means zinc stearate, EB-S means ethylene-bis-stearylamide, and Mg-St means magnesium stearate. PS means low molecular weight polystyrene, and AS means low molecular weight acrylonitrile-styrene copolymer.
（発明の効果） 本発明の着色されたスチレン系樹脂組成物は、成形時に
観察される黒条発生が解消された非常に有用なものであ
る。 (Effect of the Invention) The colored styrenic resin composition of the present invention is very useful in eliminating the occurrence of black stripes observed during molding.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−86743（ＪＰ，Ａ) 特開 昭58−61155（ＪＰ，Ａ) 特開 平２−88660（ＪＰ，Ａ) 特開 平１−308441（ＪＰ，Ａ) 特公 昭45−12228（ＪＰ，Ｂ１) 特公 昭60−2338（ＪＰ，Ｂ２) 特公 昭60−3111（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-86743 (JP, A) JP-A-58-61155 (JP, A) JP-A-2-88660 (JP, A) JP-A-1- 308441 (JP, A) JP 45-12228 (JP, B1) JP 60-2338 (JP, B2) JP 60-3111 (JP, B2)
Claims (2)
るスチレン系樹脂を、酸化アルミニウムで表面処理され
た酸化チタンを必須成分とする着色剤で着色した樹脂組
成物において、着色剤の分散剤としてアルキレン−ビス
−脂肪酸アミドを上記スチレン系樹脂100重量部に対し
0.1〜２重量部及び／又は脂肪酸亜鉛を上記スチレン系
樹脂100重量部に対し0.1〜２重量部使用して着色したこ
とを特徴とした着色樹脂組成物。1. A resin composition obtained by coloring a styrene-based resin containing an alkylene-bis-fatty acid amide with a colorant containing titanium oxide surface-treated with aluminum oxide as an essential component, and an alkylene as a dispersant for the colorant. -Bis-fatty acid amide to 100 parts by weight of the styrene resin
A colored resin composition, characterized in that 0.1 to 2 parts by weight and / or zinc fatty acid is used in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the styrene resin.
るスチレン系樹脂に、酸化アルミニウムで表面処理され
た酸化チタンを必須成分とする着色剤と、上記スチレン
系樹脂100重量部に対し0.1〜２重量部のアルキレン−ビ
ス−脂肪酸アミド及び／又は上記スチレン系樹脂100重
量部に対し0.1〜２重量部の脂肪酸亜鉛を添加すること
を特徴とする着色した樹脂組成物の製造方法。2. A styrene-based resin containing an alkylene-bis-fatty acid amide, a colorant containing titanium oxide surface-treated with aluminum oxide as an essential component, and 0.1 to 2 parts by weight per 100 parts by weight of the styrene-based resin. Part of alkylene-bis-fatty acid amide and / or 0.1 to 2 parts by weight of fatty acid zinc is added to 100 parts by weight of the styrenic resin, and a method for producing a colored resin composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23898088A JPH0739519B2 (en) | 1988-09-26 | 1988-09-26 | Colored thermoplastic resin composition and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23898088A JPH0739519B2 (en) | 1988-09-26 | 1988-09-26 | Colored thermoplastic resin composition and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0288659A JPH0288659A (en) | 1990-03-28 |
| JPH0739519B2 true JPH0739519B2 (en) | 1995-05-01 |
Family
ID=17038148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23898088A Expired - Fee Related JPH0739519B2 (en) | 1988-09-26 | 1988-09-26 | Colored thermoplastic resin composition and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0739519B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05239293A (en) * | 1991-10-18 | 1993-09-17 | Mitsui Toatsu Chem Inc | Colored styrene resin composition |
-
1988
- 1988-09-26 JP JP23898088A patent/JPH0739519B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0288659A (en) | 1990-03-28 |
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