JPS587320A - Poly 4-methyl-1-pentene particles - Google Patents
Poly 4-methyl-1-pentene particlesInfo
- Publication number
- JPS587320A JPS587320A JP10439081A JP10439081A JPS587320A JP S587320 A JPS587320 A JP S587320A JP 10439081 A JP10439081 A JP 10439081A JP 10439081 A JP10439081 A JP 10439081A JP S587320 A JPS587320 A JP S587320A
- Authority
- JP
- Japan
- Prior art keywords
- pentene
- methyl
- particles
- poly
- lubricant
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/16—Auxiliary treatment of granules
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は押出安定性の改良されたポリ４−メチル−１−
ペンテン粒子に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides poly-4-methyl-1-
Concerning pentene particles.
ポリ４−メチル−１−ペンテンは、その優れた耐熱性、
耐薬品性、電気特性、離型性、透明性あるし、１は市販
樹脂中で最も密度が小さいという特徴を生かし、射出成
形法あるいは押出成形法により成形され、注射器、血液
分析用セル、尿採取管、ペースメーカーなどの医療用分
野やポツプコーン製造用部品、電子レンジ用食器ベーキ
ングトレーなどの調理具あるいは日用品雑貨分野、さら
には電力ＯＦケーブル用、通信ケーブル用、弱電部品の
誘電体カバーなどのエレクトロニクス分野など広い分野
で利用されている。しかしながら、従来よりポリ４−メ
チル−１−ペンテンは、成型時に固相状態から溶融状態
に遷移するとき粘着性を増し、スクリュー等への喰い込
み不良が起こり、良好な押出安定性が得られ難く、射出
成形時に樹脂の計量がばらつき、ショートショット等を
起こし、安定した品質の製品が得られなかったり、押出
成形時にサージングを起こし、フィルム、シート等の肉
厚にむらを生じるという問題がある。このため滑剤を用
いてサージング防止を計る方法がとられているが、従来
方法のように滑剤をポリマー中に練り込む方法では、多
量の滑剤を必要として、ひいては製品の機械的特性や電
気的特性を悪化させる原因などになった。Poly-4-methyl-1-pentene has excellent heat resistance,
It has chemical resistance, electrical properties, mold releasability, transparency, and has the lowest density among commercially available resins, and is molded by injection molding or extrusion molding, making it suitable for use in syringes, blood analysis cells, and urine. Medical fields such as collection tubes and pacemakers, popcorn manufacturing parts, cooking utensils such as baking trays for microwave ovens, and daily necessities fields, as well as electronics such as power OF cables, communication cables, and dielectric covers for light electrical parts. It is used in a wide range of fields. However, conventionally, poly-4-methyl-1-pentene has increased stickiness when it transitions from a solid state to a molten state during molding, resulting in poor penetration into screws, etc., making it difficult to obtain good extrusion stability. There are problems in that the measurement of the resin varies during injection molding, causing short shots, etc., making it impossible to obtain products of stable quality, and surging during extrusion molding, resulting in uneven thickness of films, sheets, etc. For this reason, methods have been used to prevent surging by using lubricants, but the conventional method of kneading lubricants into polymers requires a large amount of lubricant, which can affect the mechanical and electrical properties of the product. It became a cause of deterioration.
本発明者らは、このような現状に鑑み鋭意研究を重ねた
結果、押出安定性良好なポリ４−メチル−１−ペンテン
粒子が得られることが分かり、本発明を完成するに至っ
た。The inventors of the present invention have conducted extensive research in view of the current situation, and as a result have found that poly-4-methyl-1-pentene particles having good extrusion stability can be obtained, and have completed the present invention.
すなわち本発明は、ポリ４−メチル−１−ペンテン粒子
表面に、該粒子１００重量部に対して０．００１ないし
５重量部の割合の滑剤を付着させてなることを特徴とす
るポリ４−メチル−１−ペンテン粒子に関する。That is, the present invention is characterized in that a lubricant is attached to the surface of poly-4-methyl-1-pentene particles in an amount of 0.001 to 5 parts by weight per 100 parts by weight of the particles. -1-Relating to pentene particles.
本発明における滑剤とは、公知の滑剤であり、例えば流
動パラフィン、マイクロワックス、ポリエチレンワック
ス、高級脂肪酸、オキシ脂肪酸、脂肪酸アミド、脂肪酸
のアルコールエステル、金続石鹸、多価アルコール、ポ
リグリセロールあるいはこれらの混合系があげられる。The lubricant in the present invention is a known lubricant, such as liquid paraffin, microwax, polyethylene wax, higher fatty acid, oxyfatty acid, fatty acid amide, fatty acid alcohol ester, Kintsugi soap, polyhydric alcohol, polyglycerol, or these. A mixed system can be mentioned.
このうちでは金属石鹸がポリ４−メチル−１−ペンテン
の剛性、透明性等の物性を阻害することが少ない点で好
適であり、具体的にはステアリン酸カルシウム、ステア
リン酸バリウム、ステアリン酸マグネシウム、ステアリ
ン酸亜鉛、ステアリン酸アルミニウム、ステアリン酸リ
チウム、ステアリン酸ストロンチウム、ミ”リスチン酸
カルシウム、ミリスチン酸バリウム＼ミリスチン酸マグ
ネシウム、ラウリン酸バリウム、ラウリン酸カルシウム
Ｎマルガリン酸カルシウム等が例示できる。中でも平均
粒度が通常約５００μ以下、好ましくは約１００μ以下
のステアリン酸カルシウム、ステアリン酸ナトリウムへ
ステアリン酸亜鉛等がポリマー粒子との付着性が良く、
均一にポリマー粒子表面に付着する点で特に好適である
。滑剤の樹脂に対する添加量は、ｏ、ｏｏｔないし５重
量％、好ましくは０．０１ないし０．５重量％である。Among these, metal soaps are preferable because they do not interfere with the physical properties of poly4-methyl-1-pentene such as rigidity and transparency.Specifically, metal soaps include calcium stearate, barium stearate, magnesium stearate, and Examples include zinc acid, aluminum stearate, lithium stearate, strontium stearate, calcium myristate, barium myristate/magnesium myristate, barium laurate, calcium laurate N calcium margarate, etc. Among them, the average particle size is usually about 500μ. Hereinafter, preferably calcium stearate, sodium stearate, zinc stearate, etc. with a size of about 100μ or less have good adhesion with polymer particles,
It is particularly suitable because it adheres uniformly to the surface of the polymer particles. The amount of lubricant added to the resin is from o,oot to 5% by weight, preferably from 0.01 to 0.5% by weight.
添加量が０．００１重量％未満だと、押出安定性の改良
効果が見られず、５重量％を超えたものは、それ以上の
効果を期待できないほか、成形時に着色などの原因とな
る。If the amount added is less than 0.001% by weight, no improvement effect on extrusion stability will be observed, and if it exceeds 5% by weight, no further effect can be expected and it may cause coloring during molding.
また本発明に用いられるポリ４−メチル−１−ペンテン
とは、４−メチル−１−ペンテンの単独重合体のみなら
ず、４−メチル−１−ペンテンと少割合の他のα−オレ
フィン、例えばエチレン、プロピレン、１−ブテン、３
−メチル−１−ペンテン、１−ヘキセン、１−オクテン
、１−デセン、１−ウンデセン、１−へキサデセン、１
−オクタデセンなどとのランダム共重合体あるいはブロ
ック共重合体であってもよい。さらに上述の重合体にほ
かの熱可塑性樹脂、たとえばポリオレフィンやゴム、た
とえばオレフィン共重合ゴムが配合されたものであって
もよい。Furthermore, the poly-4-methyl-1-pentene used in the present invention is not only a homopolymer of 4-methyl-1-pentene, but also 4-methyl-1-pentene and a small proportion of other α-olefins, such as ethylene, propylene, 1-butene, 3
-Methyl-1-pentene, 1-hexene, 1-octene, 1-decene, 1-undecene, 1-hexadecene, 1
- It may be a random copolymer or a block copolymer with octadecene or the like. Furthermore, other thermoplastic resins such as polyolefins and rubbers such as olefin copolymer rubbers may be blended with the above-mentioned polymers.
本発明の上記ポリ４−メチル−１−ペンテンから、前記
滑剤を用いて粘着性の小さいポリ４−メチル−１−ペン
テン粒子を得るには、一度ボリ４−メチルー１−ペンテ
ンの粒子を造粒し、該粒子と滑剤をヘンシェルミキサー
、タンブラーブレンダー、バイブレータ−１Ｖ−ブレン
ダーなどの装置を用いて混合することによって得られる
。この時、ポリ４−メチル−１−ペンテンの軟化温度以
上に加熱すれば、さらによく滑剤がペレット表面に付着
するので好ましい。尚、ここでいうポリ４−メチル−１
−ペンテン粒子とは平均粒径概ね２ｍｍないし５ｍｍで
ある。In order to obtain poly-4-methyl-1-pentene particles with low adhesiveness from the poly-4-methyl-1-pentene of the present invention using the lubricant, the poly-4-methyl-1-pentene particles are first granulated. It is obtained by mixing the particles and a lubricant using a device such as a Henschel mixer, a tumbler blender, or a vibrator-1V-blender. At this time, it is preferable to heat the pellet to a temperature higher than the softening temperature of poly-4-methyl-1-pentene because the lubricant will adhere to the pellet surface better. In addition, poly 4-methyl-1 referred to here
- Pentene particles have an average particle size of approximately 2 mm to 5 mm.
以上のようにして得られたポリ４−メチル−１−ぺ７７
７粒子は、成形時において固相状態から溶融状態に遷移
する際も粘着性が現われないため、サージングが起こら
ず、押出安定性が優れるため重量あるいは形状が揃った
製品あるいは厚みむら、被覆むらのないフィルム、シー
ト、押出被覆品が得られる。以下実施例を示す。Poly 4-methyl-1-pe77 obtained as above
7 particles do not exhibit stickiness during the transition from the solid state to the molten state during molding, so surging does not occur and they have excellent extrusion stability, so they can be used to produce products with uniform weight or shape, or with uneven thickness or coating. films, sheets, and extrusion coated products are obtained. Examples are shown below.
実施例１
ポリ４−メチル−１−ペンテン粒子（平均粒径３ｍｍ）
５＆ｇと平均粒径１０μのステアリン酸カルシウム０．
５ｇとを２０１ヘンシエルミキサーで常温で２０秒間ブ
レンドした。得られたベレットを４０ｍｍφシート押出
装置を用いて押出し、１分間当りの押出量を１０回測定
し、押出量の変動率を求めた。Example 1 Poly 4-methyl-1-pentene particles (average particle size 3 mm)
5&g and calcium stearate with an average particle size of 10μ.
and 5 g were blended for 20 seconds at room temperature using a 201 Henschel mixer. The obtained pellet was extruded using a 40 mmφ sheet extrusion device, the amount of extrusion per minute was measured 10 times, and the fluctuation rate of the amount of extrusion was determined.
実施例２
ステアリン酸カルシウムの量を１．５ｇにするほかは、
実施例１と同様に行った。結果を第１表に示す。Example 2 Except that the amount of calcium stearate was 1.5 g,
The same procedure as in Example 1 was carried out. The results are shown in Table 1.
実施例３
ステアリン酸カルシウムの量を１０ｇとするほかは、実
施例１と同様に行った。結果を第１表に示す。Example 3 The same procedure as Example 1 was carried out except that the amount of calcium stearate was changed to 10 g. The results are shown in Table 1.
実施例４
ステアリン酸カルシウムのかわりに平均粒径１５μのス
テアリン酸マグネシウムを使用するほかは、実施例２と
同様に行った。結果を第１表に示す。Example 4 The same procedure as Example 2 was carried out except that magnesium stearate having an average particle size of 15 μm was used instead of calcium stearate. The results are shown in Table 1.
実施例５
ステアリン酸カルシウムのかわりに平均粒径１５μのス
テアリン酸亜鉛を使用するほかは、実施例２と同様に行
った。結果を第１表に示す。Example 5 The same procedure as in Example 2 was carried out except that zinc stearate having an average particle size of 15 μm was used instead of calcium stearate. The results are shown in Table 1.
比較例１
ポリ４−メチル−１−ペンテン５ｋＱにステアリン酸カ
ルシウム０．５ｇを添加し、４０ｍｍφの押出機で混練
・造粒し、ステアリン酸カルシウムを練り込んだポリ４
−メチル−１−ペンテンの粒子（平均粒径５ｍｍ）を得
た。この粒子を４Ｑｍｍφのシート押出装置にて押出し
、実施例１と同様に押出量の変動率を求めた。結果を第
１表に示すＯ
比較例２
ステアリン酸カルシウムの量を１．５ｇにするほかは、
比較例１と同様に行った。結果を第１表に示す。Comparative Example 1 0.5 g of calcium stearate was added to 5kQ of poly-4-methyl-1-pentene, and the mixture was kneaded and granulated using a 40 mmφ extruder to produce poly-4 in which calcium stearate was kneaded.
-Methyl-1-pentene particles (average particle size 5 mm) were obtained. The particles were extruded using a sheet extrusion device with a diameter of 4 Q mm, and the rate of variation in the extrusion amount was determined in the same manner as in Example 1. The results are shown in Table 1. Comparative Example 2 Except that the amount of calcium stearate was 1.5 g,
The same procedure as in Comparative Example 1 was carried out. The results are shown in Table 1.
比較例５Comparative example 5
Claims (1)
子１００重量部に対して０．００１ないし５重量部の割
合の滑剤を付着させてなることを特徴とするポリ４−メ
チル−１−ペンテン粒子。(1) Poly-4-methyl-1, characterized in that a lubricant is attached to the surface of poly-4-methyl-1-pentene particles in an amount of 0.001 to 5 parts by weight per 100 parts by weight of the particles. -Pentene particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10439081A JPS587320A (en) | 1981-07-06 | 1981-07-06 | Poly 4-methyl-1-pentene particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10439081A JPS587320A (en) | 1981-07-06 | 1981-07-06 | Poly 4-methyl-1-pentene particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS587320A true JPS587320A (en) | 1983-01-17 |
| JPH0250938B2 JPH0250938B2 (en) | 1990-11-05 |
Family
ID=14379411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10439081A Granted JPS587320A (en) | 1981-07-06 | 1981-07-06 | Poly 4-methyl-1-pentene particles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS587320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63234034A (en) * | 1987-03-23 | 1988-09-29 | Shin Kobe Electric Mach Co Ltd | Production of resin magnet molding material |
| US4959264A (en) * | 1987-01-06 | 1990-09-25 | The Wiggins Teape Group Limited | Release paper for making artificial leather |
-
1981
- 1981-07-06 JP JP10439081A patent/JPS587320A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4959264A (en) * | 1987-01-06 | 1990-09-25 | The Wiggins Teape Group Limited | Release paper for making artificial leather |
| JPS63234034A (en) * | 1987-03-23 | 1988-09-29 | Shin Kobe Electric Mach Co Ltd | Production of resin magnet molding material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0250938B2 (en) | 1990-11-05 |
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