JPH0742364B2 - Method for imparting antistatic property to polyolefin resin injection molded products - Google Patents
Method for imparting antistatic property to polyolefin resin injection molded productsInfo
- Publication number
- JPH0742364B2 JPH0742364B2 JP62044957A JP4495787A JPH0742364B2 JP H0742364 B2 JPH0742364 B2 JP H0742364B2 JP 62044957 A JP62044957 A JP 62044957A JP 4495787 A JP4495787 A JP 4495787A JP H0742364 B2 JPH0742364 B2 JP H0742364B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- polyolefin resin
- resin injection
- molding
- antistatic
- 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 - Lifetime
Links
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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、ポリオレフィン樹脂射出成形品への帯電防止
性付与方法に関するものである。The present invention relates to a method for imparting an antistatic property to a polyolefin resin injection molded product.
一般にポリオレフィンはフィルム、成形品、繊維などの
成形材料として広く用いられている。これらは、通常優
れた電気絶縁性を有している反面、静電気が帯電、蓄積
し易く、種々の障害や災害の原因となることがある。例
えば周知のように、ポリオレフィン樹脂は静電気帯電に
より極めて汚染され易く、汚れが強固に付着して商品価
値を著しく低下させる原因となる。Generally, polyolefin is widely used as a molding material for films, molded products, fibers and the like. These usually have excellent electrical insulation properties, but on the other hand, static electricity is easily charged and accumulated, which may cause various troubles and disasters. For example, as is well known, the polyolefin resin is extremely liable to be contaminated by electrostatic charge, and the stains are strongly attached to the polyolefin resin, which causes a significant decrease in commercial value.
従来、グリセリンエステル、アルキルアミン等が合成樹
脂の帯電防止剤として使用されている。しかし、これら
は帯電防止効果の即効性という点では充分ではなく、即
ち成形直後（成形後５時間以内）の帯電防止効果は不満
足であった。Conventionally, glycerin ester, alkylamine and the like have been used as antistatic agents for synthetic resins. However, these are not sufficient in terms of the immediate effect of the antistatic effect, that is, the antistatic effect immediately after molding (within 5 hours after molding) is unsatisfactory.
本発明は成形直後にも帯電防止効果のあるポリオレフィ
ン樹脂射出成形品への帯電防止性付与方法に関するもの
である。The present invention relates to a method for imparting antistatic properties to a polyolefin resin injection-molded article which has an antistatic effect immediately after molding.
本発明者らは先に式（１）及び／又は（２）で示される
グリセリンエステル （但しｎ＝７〜21の整数） と式（３）で示されるアミド化合物 （但しｍ＝７〜21の整数、２≦ｐ＋ｑ≦４） とを併用すれば、各種合成樹脂に対して帯電防止効果が
高持続性で、かつ良好な成形体表面状態が得られること
を見出し、出願している（特願昭60−195665号）。The present inventors previously mentioned the glycerin ester represented by the formula (1) and / or (2). (However, n is an integer of 7 to 21) and an amide compound represented by the formula (3). It has been found that when used in combination with (where m = an integer of 7 to 21 and 2 ≦ p + q ≦ 4), the antistatic effect is highly durable against various synthetic resins and a good surface condition of the molded body can be obtained. , (Japanese Patent Application No. 60-195665).
本発明者等は、ポリオレフィンに対して成形直後より帯
電防止効果を得ることを目的として種々検討した結果、
本発明者らの先願の発明に記載されているステアリン酸
モノグリセライドとステアロイルジエタノールアミドと
の併用或いはラウリン酸モノグリセライドとステアロイ
ルジエタノールアミドとの併用などでは帯電防止効果の
即効性（成形後５時間以内）が全く得られなかったにも
拘わらず、ラウリン酸モノグリセライド（モノグリセラ
イド含量が85重量％以上）とラウロイルジエタノールア
ミドとを特定の重量比でポリオレフィンに添加した後、
射出成形した時のみ、特異的に成形直後（成形後５時間
以内）より充分な帯電防止効果が得られることを見出
し、本発明を完成するに至った。The present inventors have variously studied for the purpose of obtaining an antistatic effect on the polyolefin immediately after molding,
Immediate effect of antistatic effect (within 5 hours after molding) in combination of stearic acid monoglyceride and stearoyldiethanolamide or combination of lauric acid monoglyceride and stearoyldiethanolamide described in the invention of the present inventors' prior application Despite not being obtained at all, after adding lauric acid monoglyceride (monoglyceride content of 85% by weight or more) and lauroyl diethanolamide to the polyolefin in a specific weight ratio,
It was found that a sufficient antistatic effect can be specifically obtained immediately after molding (within 5 hours after molding) only when injection molding is completed, and the present invention has been completed.
即ち本発明は、グリセライドを構成する酸の90重量％以
上がラウリン酸であり、かつモノグリセライド含量が85
重量％以上であるラウリン酸モノグリセライドと純分が
90重量％以上のラウロイルジエタノールアミドとを60〜
40/40〜60の重量比で含む帯電防止剤をポリオレフィン
樹脂100重量部に対し0.1〜1.5重量部混合してなる樹脂
組成物を射出成形することを特徴とするポリオレフィン
樹脂射出成形品への帯電防止性付与方法を提供するもの
である。That is, in the present invention, 90% by weight or more of the acid constituting glyceride is lauric acid, and the monoglyceride content is 85%.
Lauric acid monoglyceride which is more than weight% and pure content
60% with 90% by weight or more of lauroyl diethanolamide
Charging of a polyolefin resin injection-molded product, characterized by injection-molding a resin composition obtained by mixing 0.1-1.5 parts by weight of an antistatic agent contained in a weight ratio of 40 / 40-60 with 100 parts by weight of a polyolefin resin. The present invention provides a method for imparting preventiveness.
ラウリン酸モノグリセライドはその原料、製造過程の関
係でどうしても種々の副生成物を含むものであり、本発
明においても副生成物を含むものを使用し得るが、出来
るだけ純粋であることが好ましい。本発明においては、
グリセライドを構成する酸としてラウリン酸が90重量％
以上含有されており、グリセリンのエステル化度につい
てはモノグリセライドを85重量％以上含有するラウリン
酸モノグリセライドを使用する必要がある。この範囲を
満足しない程度に副生成物を含有するラウリン酸モノグ
リセライドを使用したのでは帯電防止効果の即効性は期
待できない。同様のことがラウロイルジエタノールアミ
ドについても言え、本発明で使用するラウロイルジエタ
ノールアミドは純分を90重量％以上含有するものであ
り、純分がこれ未満のものをラウロイルジエタノールア
ミド成分として用いた場合、帯電防止効果の即効性は期
待できない。更にラウリン酸モノグリセライドとラウロ
イルジエタノールアミドとは、60〜40/40〜60の重量比
であることが必要であり、この範囲外では帯電防止効果
の即効性は期待できない。Lauric acid monoglyceride inevitably contains various by-products in relation to its raw material and manufacturing process. In the present invention, those containing by-products can be used, but it is preferable that they are as pure as possible. In the present invention,
90% by weight of lauric acid as an acid that constitutes glyceride
Regarding the degree of esterification of glycerin, it is necessary to use lauric acid monoglyceride containing 85% by weight or more of monoglyceride. If lauric acid monoglyceride containing by-products is used to the extent that this range is not satisfied, immediate antistatic effect cannot be expected. The same applies to lauroyldiethanolamide, lauroyldiethanolamide used in the present invention contains a pure content of 90 wt% or more, when the pure content is less than this, as a lauroyldiethanolamide component, No immediate antistatic effect can be expected. Further, lauric acid monoglyceride and lauroyl diethanolamide must be in a weight ratio of 60 to 40/40 to 60, and if the amount is outside this range, immediate antistatic effect cannot be expected.
本発明のポリオレフィン樹脂射出成形品への帯電防止性
付与方法において、帯電防止剤の添加量は0.1〜1.5PHR
である。0.1PHRより少ない添加量では帯電防止効果は得
られない。一方、1.5PHRより多い添加量では0.1〜1.5PH
Rの範囲の場合と比較して、それ以上に帯電防止効果が
向上することはない。またその場合には、成形体表面に
ベタツキが発生する恐れがある。In the method for imparting antistatic property to the polyolefin resin injection-molded article of the present invention, the addition amount of the antistatic agent is 0.1 to 1.5 PHR.
Is. If the amount added is less than 0.1 PHR, the antistatic effect cannot be obtained. On the other hand, 0.1-1.5PH when added more than 1.5PHR
Compared with the case of the range of R, the antistatic effect is not further improved. In that case, stickiness may occur on the surface of the molded body.
また、本発明に使用される帯電防止剤は、射出成形によ
ってのみ帯電防止効果の優れた即効性を示すものであ
り、他の成形方法、例えば押出成形、ブロー成形では帯
電防止効果の即効性は得られない。Further, the antistatic agent used in the present invention exhibits excellent immediate effect of the antistatic effect only by injection molding, and in other molding methods such as extrusion molding and blow molding, the immediate effect of the antistatic effect is not shown. I can't get it.
本発明において、帯電防止剤は、粉末状態で使用する為
に、シリカ或いはケイ酸カルシウムに吸油させても良
い。In the present invention, the antistatic agent may be absorbed in silica or calcium silicate for use in the powder state.
また、帯電防止剤をポリオレフィンに混合する方法は、
ドライブレンドでも良いし、マスターバッチでも良い。Further, the method of mixing the antistatic agent with the polyolefin,
It may be a dry blend or a masterbatch.
次の実施例を挙げて本発明を説明するが、本発明はこれ
らの実施例に限定されるものではない。The present invention will be described with reference to the following examples, but the present invention is not limited to these examples.
実施例１〜５、比較例１〜８ ポリオレフィン＊１に対して表１に示す帯電防止剤を0.
5PHR添加してヘンシェルミキサーで１分間混合攪拌し、
次いでシリンダー温度200〜230℃にて射出成形して縦10
0mm×横70mm×厚さ3mmのプレートを成形した。成形１時
間後に表面固有抵抗（ASTM D 257）を測定した（25℃、
50％RHの条件下）。その数値が１×1012Ω以下の場合、
帯電防止効果は良好である。その結果を表１に示す。Examples 1 to 5, Comparative Examples 1 to 8 The antistatic agent shown in Table 1 was added to polyolefin * 1 .
Add 5PHR and mix and stir for 1 minute with a Henschel mixer,
Then, injection molding is performed at a cylinder temperature of 200 to 230 ° C and the length is 10
A plate having a size of 0 mm × width 70 mm × thickness 3 mm was formed. Surface specific resistance (ASTM D 257) was measured 1 hour after molding (25 ° C,
50% RH). If the value is less than 1 × 10 12 Ω,
The antistatic effect is good. The results are shown in Table 1.
また、実施例１〜５、比較例１〜６に示された帯電防止
剤をポリプロピレンに0.5PHR添加して、その後押出成形
（シリンダー温度200〜230℃）により厚さ3mmのシート
をつくり、１時間後に表面固有抵抗を測定したが、何れ
も１×1015Ωであり、帯電防止効果は認められなかっ
た。In addition, 0.5 PHR of the antistatic agent shown in Examples 1 to 5 and Comparative Examples 1 to 6 was added to polypropylene, and then extrusion molding (cylinder temperature 200 to 230 ° C.) was performed to form a sheet having a thickness of 3 mm. The surface resistivity was measured after a lapse of time, and all were 1 × 10 15 Ω, and no antistatic effect was observed.
注）＊１ ポリプロピレン； 出光ポリプロJ700G（PP） 高密度ポリエチレン； ハイゼックス2100J（PE） Note) * 1 Polypropylene; Idemitsu PolyPro J700G (PP) High-density polyethylene; Hi-Zex 2100J (PE)
Claims (1)
ラウリン酸であり、かつモノグリセライド含量が85重量
％以上であるラウリン酸モノグリセライドと純分が90重
量％以上のラウロイルジエタノールアミドとを60〜40/4
0〜60の重量比で含む帯電防止剤をポリオレフィン樹脂1
00重量部に対し0.1〜1.5重量部混合してなる樹脂組成物
を射出成形することを特徴とするポリオレフィン樹脂射
出成形品への帯電防止性付与方法。1. Lauric acid monoglyceride having a glyceride content of 90% by weight or more of lauric acid and a monoglyceride content of 85% by weight or more, and lauroyldiethanolamide having a pure content of 90% by weight or more. 40/4
Polyolefin resin 1 containing an antistatic agent in a weight ratio of 0-60
A method for imparting antistatic properties to a polyolefin resin injection-molded article, which comprises subjecting a resin composition obtained by mixing 0.1 to 1.5 parts by weight to 00 parts by weight to injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62044957A JPH0742364B2 (en) | 1987-02-27 | 1987-02-27 | Method for imparting antistatic property to polyolefin resin injection molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62044957A JPH0742364B2 (en) | 1987-02-27 | 1987-02-27 | Method for imparting antistatic property to polyolefin resin injection molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63213538A JPS63213538A (en) | 1988-09-06 |
| JPH0742364B2 true JPH0742364B2 (en) | 1995-05-10 |
Family
ID=12705965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62044957A Expired - Lifetime JPH0742364B2 (en) | 1987-02-27 | 1987-02-27 | Method for imparting antistatic property to polyolefin resin injection molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742364B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041241A (en) * | 2001-08-01 | 2003-02-13 | Kao Corp | Antistatic agent |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9803982D0 (en) * | 1998-02-25 | 1998-04-22 | Danisco | Composition |
| JP4757604B2 (en) * | 2005-11-01 | 2011-08-24 | 花王株式会社 | Antistatic agent for polyester resin |
| CN106133047B (en) | 2014-03-26 | 2019-05-07 | 住友橡胶工业株式会社 | Rubber composition for tires, pneumatic tire, and method for producing the rubber composition for tires |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60202883A (en) * | 1984-03-26 | 1985-10-14 | Yamanouchi Pharmaceut Co Ltd | Pyrimidone derivative and its preparation |
| JPS6178854A (en) * | 1984-09-25 | 1986-04-22 | Takemoto Oil & Fat Co Ltd | Method for imparting antistatic and anti-fogging properties to polyolefin resin |
| JPS6254737A (en) * | 1985-09-04 | 1987-03-10 | Kao Corp | Additive composition for synthetic resin |
-
1987
- 1987-02-27 JP JP62044957A patent/JPH0742364B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041241A (en) * | 2001-08-01 | 2003-02-13 | Kao Corp | Antistatic agent |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63213538A (en) | 1988-09-06 |
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