JPS63213538A - Polyolefin resin composition for injection molding - Google Patents
Polyolefin resin composition for injection moldingInfo
- Publication number
- JPS63213538A JPS63213538A JP4495787A JP4495787A JPS63213538A JP S63213538 A JPS63213538 A JP S63213538A JP 4495787 A JP4495787 A JP 4495787A JP 4495787 A JP4495787 A JP 4495787A JP S63213538 A JPS63213538 A JP S63213538A
- Authority
- JP
- Japan
- Prior art keywords
- polyolefin resin
- injection molding
- resin composition
- lauric acid
- molding
- 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
- 229920005672 polyolefin resin Polymers 0.000 title claims abstract description 11
- 238000001746 injection moulding Methods 0.000 title claims abstract description 8
- 239000011342 resin composition Substances 0.000 title claims abstract description 6
- 239000002216 antistatic agent Substances 0.000 claims abstract description 11
- ARIWANIATODDMH-UHFFFAOYSA-N Lauric acid monoglyceride Natural products CCCCCCCCCCCC(=O)OCC(O)CO ARIWANIATODDMH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 3
- AOMUHOFOVNGZAN-UHFFFAOYSA-N N,N-bis(2-hydroxyethyl)dodecanamide Chemical compound CCCCCCCCCCCC(=O)N(CCO)CCO AOMUHOFOVNGZAN-UHFFFAOYSA-N 0.000 claims abstract 3
- 230000000694 effects Effects 0.000 abstract description 17
- 238000000465 moulding Methods 0.000 abstract description 10
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 abstract description 4
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005639 Lauric acid Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract description 2
- 229920000098 polyolefin Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- -1 glycerin ester Chemical class 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 125000000400 lauroyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 125000005456 glyceride group Chemical group 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000003696 stearoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N beta-monoglyceryl stearate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000010101 extrusion blow moulding Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 150000002314 glycerols Chemical class 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、射出成形用ポリオレフィン樹脂の改質に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the modification of polyolefin resins for injection molding.
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。In general, polyolefins are widely used as molding materials for films, molded products, fibers, and the like.
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。Although these materials usually have excellent electrical insulation properties, they tend to be charged and accumulate static electricity, which may cause various problems and disasters. For example, as is well known, polyolefin resins are extremely susceptible to staining due to electrostatic charge, and dirt adheres firmly to them, causing 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 esters, alkyl amines, and the like have been used as antistatic agents for synthetic resins. However, these were not sufficient in terms of immediate antistatic effect, that is, the antistatic effect immediately after molding (within 5 hours after molding) was 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
ン樹脂組成物に関するものである。The present invention relates to a polyolefin resin composition that has an antistatic effect even 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
ｎ
（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 prepared a glycerin ester represented by formula (1) and/or (2) (where n = an integer of 7 to 21) and an amide compound n represented by formula (3) (where m = 7 to 21). It has been discovered that when used in combination with an integer of 2≦p+q≦4), a long-lasting antistatic effect on various synthetic resins and a good surface condition of the molded product can be obtained. (Gan Sho 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ェタノールアミドと
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
ルジェ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）とラウロイルジェタノール
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。As a result of various studies aimed at obtaining an antistatic effect on polyolefin immediately after molding, the present inventors found that
The combined use of stearic acid monoglyceride and stearoyl getanolamide or the combined use of lauric acid monoglyceride and stearoyl getanolamide described in the invention of the present inventors' earlier application has an immediate antistatic effect (5 hours after molding). However, only when injection molding was performed after adding lauric acid monoglyceride (monoglyceride content of 85% or more) and lauroyl jetanolamide to polyolefin in a specific weight ratio, The inventors have found that a sufficient antistatic effect can be obtained immediately after molding (within 5 hours after molding), and have completed the present invention.
即ち本発明は、ラウリン酸モノグリセライドとラウロイ
ルジェ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射出成形用
ポリオレフィン樹脂組成物を提供するものである。That is, in the present invention, 0.1 to 1.5 parts by weight of an antistatic agent containing lauric acid monoglyceride and lauroyl jetanolamide in a weight ratio of 60 to 40/40 to 60 is mixed with 100 parts by weight of a polyolefin resin. The present invention provides a polyolefin resin composition for injection molding.
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％以上含有するもの
をラウリン酸モノグリセライドという。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。Lauric acid monoglyceride inevitably contains various by-products due to its raw materials and manufacturing process, and although products containing by-products can be used in the present invention, it is preferably as pure as possible. In the present invention,
Glyceride contains 90% by weight or more of lauric acid as an acid constituting the glyceride, and with respect to the degree of esterification of glycerin, a product containing 85% by weight or more of monoglyceride is called lauric acid monoglyceride. If lauric acid monoglyceride containing by-products is used to an extent that does not satisfy this range, immediate antistatic effect cannot be expected.
同様のことがラウロイルジェ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ェタノールアミド
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ェ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。The same thing can be said about lauroylgetanolamide, and the lauroylgetanolamide used in the present invention has a pure content of 90% by weight or more, and those with a pure content less than this are used as the lauroylgetanolamide component. In this case, immediate antistatic effect cannot be expected.
更にラウリン酸モノグリセライドとラウロイルジェタノ
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。Furthermore, the weight ratio of lauric acid monoglyceride and lauroyl jetanolamide must be 60-40/40-60; outside this range, no immediate antistatic effect can be expected.
本発明の組成物において、帯電防止剤の添加量は０．１
〜ｌ、 ５Ｐ）ＩＲ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、１．５ＰＨ
Ｒより多い添加量では０．１〜ｌ、 ５ＰＨＲ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 composition of the present invention, the amount of antistatic agent added is 0.1
~l, 5P) IR. If the amount added is less than 0.1 PHR, no antistatic effect can be obtained. On the other hand, 1.5PH
If the amount added is larger than R, the antistatic effect will not be improved any more than in the range of 0.1 to 5 PHR. Moreover, in that case, there is a possibility that stickiness may occur on the surface of the molded product.
また、本発明の組成物における帯電防止剤は、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。In addition, the antistatic agent in the composition of the present invention exhibits an excellent and immediate antistatic effect only by injection molding, and the immediate antistatic effect is not obtained by other molding methods, such as extrusion molding and blow molding. I can't get it.
本発明にふいて、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, since the antistatic agent is used in powder form, it may be made to absorb oil into silica or calcium silicate.
また、帯電防止剤をポリオレフィンに混合する方法は、
トライブレンドでも良いし、マスターバッチでも良い。In addition, the method of mixing antistatic agent with polyolefin is as follows:
A tri-blend may be used, or a masterbatch may be used.
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 explained 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
ポリオレフィン峠 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分間混合撹
拌し、次いでシリンダ一温度２００〜２３０℃にて射出
成形して縦１００ｍｍ ｘ横７０ｍｍ ｘ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（Ａ
ＳＴＭ Ｄ ２５７）を測定したく２５℃、５０％ＲＨ
の条件下）。その数値が１×１０′２Ω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 Polyolefin Pass 0 antistatic agent shown in Table 1
．． 5 PHR was added, mixed and stirred for 1 minute using a Henschel mixer, and then injection molded at a cylinder temperature of 200 to 230°C to form a plate measuring 100 mm long x 70 mm wide x 3 mm thick. After 1 hour of molding, the surface resistivity (A
To measure STM D 257), 25°C, 50% RH.
). When the value is 1×10′2Ω or less, 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０．５Ｐｌ（Ｒ添加して、その後
押出成形（シリンダ一温度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Ｉ ＸＩＯ”Ωであり、帯電防止効
果は認められなかった。In addition, 0.5 Pl (R) of the antistatic agent shown in Examples 1 to 5 and Comparative Examples 1 to 6 was added to polypropylene, and then a sheet with a thickness of 3 mm was formed by extrusion molding (cylinder temperature 200 to 230°C). The surface resistivity was measured after 1 hour, and it was found to be IXIO''Ω, and no antistatic effect was observed.
注）本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；Note) Book 1 Polypropylene; Idemitsu Polypro J700G (PP) High density polyethylene;
Claims (1)
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射出成形用ポリオレフ
ィン樹脂組成物。1 An antistatic agent containing lauric acid monoglyceride and lauroyl diethanolamide in a weight ratio of 60 to 40/40 to 60 is added to 100 parts by weight of polyolefin resin.
．． A polyolefin resin composition for injection molding prepared by mixing 1 to 1.5 parts by weight.
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 true JPS63213538A (en) | 1988-09-06 |
| JPH0742364B2 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6395812B1 (en) * | 1998-02-25 | 2002-05-28 | Danisco A/S | Composition |
| JP2007126500A (en) * | 2005-11-01 | 2007-05-24 | Kao Corp | Antistat for polyester resin |
| US10294349B2 (en) | 2014-03-26 | 2019-05-21 | Sumitomo Rubber Industries, Ltd. | Rubber composition for tire, pneumatic tire, and method for manufacturing rubber composition for tire |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4808340B2 (en) * | 2001-08-01 | 2011-11-02 | 花王株式会社 | Antistatic agent |
Citations (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
Patent Citations (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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6395812B1 (en) * | 1998-02-25 | 2002-05-28 | Danisco A/S | Composition |
| JP2007126500A (en) * | 2005-11-01 | 2007-05-24 | Kao Corp | Antistat for polyester resin |
| US10294349B2 (en) | 2014-03-26 | 2019-05-21 | Sumitomo Rubber Industries, Ltd. | Rubber composition for tire, pneumatic tire, and method for manufacturing rubber composition for tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0742364B2 (en) | 1995-05-10 |
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