JPS62172045A - Method for improving processability of polypropylene - Google Patents
Method for improving processability of polypropyleneInfo
- Publication number
- JPS62172045A JPS62172045A JP1407086A JP1407086A JPS62172045A JP S62172045 A JPS62172045 A JP S62172045A JP 1407086 A JP1407086 A JP 1407086A JP 1407086 A JP1407086 A JP 1407086A JP S62172045 A JPS62172045 A JP S62172045A
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene
- benzene
- bis
- butylperoxyisopropyl
- melt
- 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.)
- Pending
Links
- -1 polypropylene Polymers 0.000 title claims abstract description 14
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 12
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title description 6
- 150000001451 organic peroxides Chemical class 0.000 abstract description 8
- 238000004898 kneading Methods 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 4
- UBRWPVTUQDJKCC-UHFFFAOYSA-N 1,3-bis(2-tert-butylperoxypropan-2-yl)benzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC(C(C)(C)OOC(C)(C)C)=C1 UBRWPVTUQDJKCC-UHFFFAOYSA-N 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000002667 nucleating agent Substances 0.000 abstract description 3
- 239000011256 inorganic filler Substances 0.000 abstract description 2
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 2
- 239000000049 pigment Substances 0.000 abstract description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 abstract description 2
- 229920001400 block copolymer Polymers 0.000 abstract 1
- 238000004040 coloring Methods 0.000 abstract 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 abstract 1
- 239000008188 pellet Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- GMBBVDMBMLMRPP-UHFFFAOYSA-N butyl 2-butylbenzoate Chemical group CCCCOC(=O)C1=CC=CC=C1CCCC GMBBVDMBMLMRPP-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は成形加工性の改良されたポリプロピ１／ンの
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for producing polypropylene 1/2 having improved moldability.
〈従来の技術〉
ポリプロピレンに有Ｉ４過酸化物を混合し溶融混練して
加工性を改良することは既にしられている。例えば特公
昭４４−１５１８６号公報にはジクミルパーオキサイド
のような有機芳香族過酸化物を使用して加工性を改良す
る方法が示されている。<Prior Art> It is already known that polypropylene is mixed with an I4 peroxide and melt-kneaded to improve processability. For example, Japanese Patent Publication No. 44-15186 discloses a method of improving processability using an organic aromatic peroxide such as dicumyl peroxide.
〈発明が解決しようとする問題点〉
しかしながら、上記公報に記載されている過酸化物を使
用した場合、ポリプロピレンの臭気、変着色が大きく、
このポリプロピレンを用い成形した商品の商品価値を大
きく損う。<Problems to be Solved by the Invention> However, when the peroxide described in the above publication is used, the odor and discoloration of polypropylene are large;
This greatly reduces the commercial value of products molded using polypropylene.
これらの欠点の改良方法として、例えば特公昭５１−８
０１０２号公報）こ於いては脂肪族過酸化物の使用を推
奨しており、臭気、変着色が大巾に改良されてはいるが
未だ十分なものではない。As a method for improving these drawbacks, for example,
0102) In this case, the use of aliphatic peroxides is recommended, and although odor and discoloration have been greatly improved, it is still not sufficient.
く問題点を解決するための手段〉
本発明者らは上記問題点を解決すべく検討した結果、有
機過酸化物として１，３−ビス−（ターシャリ−ブチル
パーオキシ−イソプロピル）ベンゼンを用いることによ
り上記問題点が改良されることを見い出し本発明に至っ
た。Means for Solving the Problems> As a result of the inventors' studies to solve the above problems, we found that 1,3-bis-(tertiary-butylperoxy-isopropyl)benzene was used as the organic peroxide. The inventors have discovered that the above-mentioned problems can be improved by the above methods, and have arrived at the present invention.
即ち本発明は、ポリプロピレンに対し０．００１〜０．
１重量％の１，８−ビス−（ターシャリ−ブチルパーオ
キシイソプロピル）ペンゼンを混合し、１７０℃〜ａｏ
ｏ’ｃで溶融混練することを特徴とするポリプロピレン
の加工性改良方法であり従来法に比較して臭気、変着色
の少いポリプロピレンが得られる。That is, in the present invention, the amount of polypropylene is 0.001 to 0.0.
Mix 1% by weight of 1,8-bis-(tert-butylperoxyisopropyl)benzene and heat at 170°C to ao
This is a method for improving the processability of polypropylene, which is characterized by melt-kneading under o'c conditions, and it is possible to obtain polypropylene with less odor and discoloration compared to conventional methods.
溶融混練する方法は通常熱可塑性樹脂を溶融混練する時
に使用される装置及び方法でよい。例えばスタリュータ
イプ造粒機にかけることにより行ってよい。ポリプロピ
レンには通常添加される安定剤、造核剤、顔料、無機充
填、その池数質材を添加しても良い。The melt-kneading method may be an apparatus and method normally used for melt-kneading thermoplastic resins. For example, it may be carried out by applying it to a Staryu type granulator. Stabilizers, nucleating agents, pigments, inorganic fillers, and other additives that are commonly added to polypropylene may be added.
〈実施例〉
実施例１及び２
極限粘度が１．９ｄ！！／７であるポリプロピレンホモ
ポリマー１００部に対し有機過酸化物として１．８−ビ
ス−（ターシャリ−ブチルパーオキシイソプロピル）ベ
ンゼンを０．０８及び０．０５部、又安定剤としてステ
アリン酸カルシウム塩を０．０５部、スミライザーＢＨ
Ｔ■を０．１部、イルガノックス１０１０■を０．０８
部混合し、６５調ダスクリユ一タイプ造粒機にて溶融混
線しペレットにした。混練温度は２５０’Ｃで実施した
。<Example> Examples 1 and 2 Intrinsic viscosity is 1.9d! ! /7 for 100 parts of polypropylene homopolymer, 0.08 and 0.05 parts of 1,8-bis-(tert-butylperoxyisopropyl)benzene as an organic peroxide, and 0 parts of calcium stearate as a stabilizer. .05 part, Sumilizer BH
0.1 part of T■, 0.08 part of Irganox 1010■
The mixture was mixed together and melted and mixed in a 65-tone Duskrill type granulator to form pellets. The kneading temperature was 250'C.
実施例８及び４
極限粘度が２．６ ｄｉ／Ｉであるエチレンプロピレン
ブロック共重合体１００部に対し有機過酸化物どして１
．８−ビス−（ターシャリ−ブチルパーオキシイソプロ
ピル）ベンゼンを０．０５及び０．０８部、又、安定剤
としてステアリン酸カルシウム塩を０．０５部、スミラ
イザーＢＨＴ■を０．１部、イルガノックス１０１０■
をＯ，ＯＳ部、造核剤としてパラ−ターシャリブチル安
息香酸ブチルを０．１混合合し、実施例１．２と同じ方
法で溶融混線しペレットを得た。Examples 8 and 4 1 part of organic peroxide was added to 100 parts of ethylene propylene block copolymer having an intrinsic viscosity of 2.6 di/I.
．． 0.05 and 0.08 parts of 8-bis-(tert-butylperoxyisopropyl)benzene, 0.05 part of calcium stearate as a stabilizer, 0.1 part of Sumilizer BHT■, Irganox 1010■
O, OS parts, and 0.1% of para-tertiary butyl butylbenzoate as a nucleating agent were mixed, and the mixture was melted and mixed in the same manner as in Example 1.2 to obtain pellets.
比較例１及び２
有機過酸化物として２，５−ジメチル−２，５−ジター
シャリ−ブチルパーオキシヘキサンを用いて実施例１又
は２と同じ方法で溶融混練しペレットを得た。Comparative Examples 1 and 2 Pellets were obtained by melt-kneading in the same manner as in Example 1 or 2 using 2,5-dimethyl-2,5-ditertiary-butylperoxyhexane as the organic peroxide.
比較例８及び４
有機過酸化物として２，５−ジメチル−２，５−ジター
シャリ−ブチルパーオキシ子
ヘキサンを用いて実施例８又はンと同じ方法で溶融混線
しペレットを得た。Comparative Examples 8 and 4 Using 2,5-dimethyl-2,5-ditertiary-butylperoxyhexane as the organic peroxide, melt mixing was performed in the same manner as in Example 8 to obtain pellets.
比較例５
有機過酸化物を用いないで実施例１と同じ方法で溶融混
練しペレットを得た。Comparative Example 5 Pellets were obtained by melt-kneading in the same manner as in Example 1 without using an organic peroxide.
比較例６
有機過酸化物を用いないで実施例８と同じ方法で溶融混
線しペレットを得た。Comparative Example 6 Pellets were obtained by melt mixing in the same manner as in Example 8 without using an organic peroxide.
以上の結果をまとめて第１表に示した。The above results are summarized in Table 1.
＼、\、
Claims (1)
，３−ビス−（ターシャリーブチルパーオキシイソプロ
ピル）ベンゼンを混合し、１７０℃〜３００℃で溶融混
練することを特徴とするポリプロピレンの加工性改良方
法。0.001-0.1% by weight of 1 based on polypropylene
, 3-bis-(tert-butylperoxyisopropyl)benzene is mixed and melt-kneaded at 170°C to 300°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1407086A JPS62172045A (en) | 1986-01-24 | 1986-01-24 | Method for improving processability of polypropylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1407086A JPS62172045A (en) | 1986-01-24 | 1986-01-24 | Method for improving processability of polypropylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62172045A true JPS62172045A (en) | 1987-07-29 |
Family
ID=11850840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1407086A Pending JPS62172045A (en) | 1986-01-24 | 1986-01-24 | Method for improving processability of polypropylene |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62172045A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0744671U (en) * | 1991-07-19 | 1995-11-28 | 株式会社エヌ．デェイ．シー | Can material discrimination tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219595A (en) * | 1975-08-06 | 1977-02-14 | Sumitomo Chem Co Ltd | Method and apparatus for automatic arresting of ions in water |
| JPS56141338A (en) * | 1980-04-04 | 1981-11-05 | Hitachi Cable Ltd | Crosslinked polyolefin composition |
| JPS5962613A (en) * | 1982-10-01 | 1984-04-10 | Showa Denko Kk | Preparation of modified polyolefin |
| JPS61136546A (en) * | 1984-12-07 | 1986-06-24 | Idemitsu Petrochem Co Ltd | Modification of propylene/ethylene block copolymer |
-
1986
- 1986-01-24 JP JP1407086A patent/JPS62172045A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219595A (en) * | 1975-08-06 | 1977-02-14 | Sumitomo Chem Co Ltd | Method and apparatus for automatic arresting of ions in water |
| JPS56141338A (en) * | 1980-04-04 | 1981-11-05 | Hitachi Cable Ltd | Crosslinked polyolefin composition |
| JPS5962613A (en) * | 1982-10-01 | 1984-04-10 | Showa Denko Kk | Preparation of modified polyolefin |
| JPS61136546A (en) * | 1984-12-07 | 1986-06-24 | Idemitsu Petrochem Co Ltd | Modification of propylene/ethylene block copolymer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0744671U (en) * | 1991-07-19 | 1995-11-28 | 株式会社エヌ．デェイ．シー | Can material discrimination tool |
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