JP2004137447A5 - - Google Patents

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JP2004137447A5
JP2004137447A5 JP2003129365A JP2003129365A JP2004137447A5 JP 2004137447 A5 JP2004137447 A5 JP 2004137447A5 JP 2003129365 A JP2003129365 A JP 2003129365A JP 2003129365 A JP2003129365 A JP 2003129365A JP 2004137447 A5 JP2004137447 A5 JP 2004137447A5
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polyphenylene ether
resin composition
supply port
producing
weight
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JP2003129365A
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【特許請求の範囲】
【請求項1】ポリフェニレンエーテル粉体35〜80重量部、ポリスチレン系樹脂17〜45重量部及び40℃において固形状である難燃剤3〜20重量部を押出機第一供給口から供給する溶融混練法において、下記の設備配置a、b、工程cおよび押出条件dを満たすことを特徴とするポリフェニレンエーテル難燃樹脂組成物の製造方法。
a.ポリフェニレンエーテル粉体が、粉体ストックホッパー、粉体用重量式フィーダーおよび該第一供給口ホッパーの順序で供給される。
b.該第一供給口ホッパー上部に、ギアボックス側からダイ方向に向かって、ポリフェニレンエーテル粉体供給配管およびガス抜き用配管の順に配置される。
c.ポリフェニレンエーテル粉体が該粉体供給配管を通過し、ついで水平面とホッパー壁面がなす壁面角度が60〜85度である該第一供給口ホッパー壁面に沿って該第一供給口に供給され、該粉体に含まれるガスがガス抜き配管から脱気される。
d.押出機の搬送ゾーンおよび第一混練ゾーンバレル温度が200〜300℃に設定され、かつ下記式(1)および式(2)を満たす。
4000×D-0.57<N<13500×D-0.57 式(1)
(ただし、N:スクリュ回転数 rpm D:押出機スクリュ長径 mm)
8×10-3<DLQ<20×10-3 式(2)
(ただし、DLQ:無次元押出量)
【請求項2】ポリスチレン系樹脂が、該第一供給口ホッパー上部ガス抜き用配管の下流側あるいは該ホッパー下部に供給されることを特徴とする請求項1に記載のポリフェニレンエーテル難燃樹脂組成物の製造方法。
【請求項3】ポリフェニレンエーテル粉体の還元粘度が0.35〜0.54、且つ分子量分布Mw/Mnが2.3〜4.0であることを特徴とする請求項1〜3のいずれかに記載のポリフェニレンエーテル難燃樹脂組成物の製造方法。
【請求項4】難燃剤がトリフェニルフォスフェートであることを特徴とする請求項1〜3のいずれかに記載のポリフェニレンエーテル難燃樹脂組成物の製造方法。
【請求項5】粉体用重量式フィーダーの搬送部がベルト式重量式フィーダーであることを特徴とする請求項1〜4のいずれかに記載のポリフェニレンエーテル難燃樹脂組成物の製造方法。
【請求項6】該第一供給口ホッパーの酸素濃度が5wt%未満であることを特徴とする請求項1〜5のいずれかに記載のポリフェニレンエーテル難燃樹脂組成物の製造方法。
【請求項7】該第一供給口にポリフェニレンエーテル樹脂とポリスチレン系樹脂90〜50重量部および第二供給口に強化材10〜50重量部を供給することを特徴とする請求項1〜6のいずれかにポリフェニレンエーテル難燃樹脂組成物の製造方法。
[Claims]
1. Melt kneading of 35 to 80 parts by weight of a polyphenylene ether powder, 17 to 45 parts by weight of a polystyrene resin and 3 to 20 parts by weight of a flame retardant solid at 40 ° C. from a first supply port of an extruder. A method for producing a polyphenylene ether flame-retardant resin composition, which satisfies the following equipment arrangements a and b, step c and extrusion conditions d in the method.
a. A polyphenylene ether powder is supplied in the order of a powder stock hopper, a powder gravimetric feeder and the first supply port hopper.
b. In the upper part of the first supply port hopper, a polyphenylene ether powder supply pipe and a gas release pipe are arranged in this order from the gear box side toward the die.
c. Polyphenylene ether powder passes through the powder supply pipe, and is then supplied to the first supply port along the first supply port hopper wall surface where the horizontal plane and the hopper wall surface form an angle of 60 to 85 degrees, The gas contained in the powder is degassed from the gas vent pipe.
d. The barrel temperature of the conveying zone and the first kneading zone of the extruder is set to 200 to 300 ° C., and the following formulas (1) and (2) are satisfied.
4000 × D -0.57 <N <13500 × D -0.57 Formula (1)
(However, N: screw rotation speed rpm D: extruder screw long diameter mm)
8 × 10 −3 <DLQ <20 × 10 −3 Equation (2)
(However, DLQ: dimensionless extrusion amount)
2. The polyphenylene ether flame-retardant resin composition according to claim 1, wherein the polystyrene resin is supplied to the downstream side of the gas venting pipe above the first supply port hopper or to the lower part of the hopper. Manufacturing method.
3. The polyphenylene ether powder according to claim 1, wherein the reduced viscosity is 0.35 to 0.54, and the molecular weight distribution Mw / Mn is 2.3 to 4.0. The method for producing a polyphenylene ether flame-retardant resin composition according to the above item.
4. The process for producing a polyphenylene ether flame-retardant resin composition according to claim 1, wherein the flame retardant is triphenyl phosphate.
5. The method for producing a polyphenylene ether flame-retardant resin composition according to claim 1, wherein the conveying section of the powder-type weight feeder is a belt-type weight feeder.
6. The method for producing a polyphenylene ether flame-retardant resin composition according to claim 1, wherein the first supply port hopper has an oxygen concentration of less than 5 wt%.
7. A method according to claim 1, wherein 90 to 50 parts by weight of polyphenylene ether resin and polystyrene resin are supplied to said first supply port and 10 to 50 parts by weight of reinforcing material are supplied to said second supply port. A method for producing a polyphenylene ether flame-retardant resin composition.

【0001】
【発明の属する技術分野】
本発明は、ポリフェニレンエーテル樹脂組成物を製造する際に、ポリフェニレンエーテル粉体供給を安定化させ、HDT、MFRの物性のバラツキ小さく、且つ、耐衝撃性が向上した樹脂組成物の製造方法に関する
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention, in producing a polyphenylene ether resin composition, to stabilize the polyphenylene ether powder supply, HDT, small variations in the physical properties of MFR, and relates to a method of manufacturing a resin composition impact resistance is improved .

しかしながら、先行技術は、これらの課題に対して十分な解決策とは言えない。
本発明は、ポリフェニレンエーテル樹脂組成物を製造する際に、ポリフェニレンエーテル粉体供給を安定化させ、HDT、MFRの物性のバラツキ小さく、且つ、耐衝撃性が向上した樹脂組成物の製造方法を確立することを目的とする。
However, the prior art is not a sufficient solution to these problems.
The present invention, in producing a polyphenylene ether resin composition, to stabilize the polyphenylene ether powder supply, HDT, small variations in the physical properties of MFR, and a method for producing a resin composition which impact resistance is improved The purpose is to establish .

6.該第一供給口ホッパーの酸素濃度が5wt%未満であることを特徴とする上記1〜5のいずれかに記載のポリフェニレンエーテル難燃樹脂組成物の製造方法、
7.該第一供給口にポリフェニレンエーテル樹脂とポリスチレン系樹脂90〜50重量部および第二供給口に強化材10〜50重量部を供給することを特徴とする上記1〜6のいずれかに記載のポリフェニレンエーテル難燃樹脂組成物の製造方法、
である。
6. The method for producing a polyphenylene ether flame-retardant resin composition according to any one of the above 1 to 5, wherein the oxygen concentration of the first supply port hopper is less than 5 wt%.
7. The polyphenylene according to any one of the above 1 to 6, wherein 90 to 50 parts by weight of a polyphenylene ether resin and a polystyrene resin are supplied to the first supply port and 10 to 50 parts by weight of a reinforcing material are supplied to the second supply port. Method for producing ether flame-retardant resin composition,
It is.

重量式フィーダーは、Kトロン社の重量式フィーダーを使用し、ポリフェニレンエーテル粉体用およびポリスチレンペレット用を設置した。
スクリーンチェンジャーは、プレート式スクリーンチェンジャーを使用した。金属メッシュは20番/100番/20番を組み合わせた金属メッシュをブレーカープレートに張り付けた。ダイプレートは4mmΦの穴径50穴のダイプレートを使用した。ストランドバスの長さは5mであり、ストランド水は、40℃に制御し、ストランドは、ストランド水に2m浸漬したのち、空冷し、Air wiperでストランド表面に付着している水を吹き飛ばし、ストランドのペレタイザーの入り口温度140℃に設定して、ペレットサイズ3mm目標で、カッティングした。
The weight-type feeder used was a weight-type feeder manufactured by K-Tron Corporation, and was installed for polyphenylene ether powder and for polystyrene pellets.
The screen changer used was a plate type screen changer. As the metal mesh, a metal mesh combining No. 20 / No. 100 / No. 20 was attached to a breaker plate. As the die plate, a die plate having a hole diameter of 4 mmφ and a diameter of 50 was used. The length of the strand bath is 5 m, the strand water is controlled at 40 ° C., the strand is immersed in the strand water for 2 m, then air-cooled, and the water adhering to the strand surface is blown off with an air wiper. Cutting was performed at an inlet temperature of the pelletizer of 140 ° C. and a target of a pellet size of 3 mm.

Figure 2004137447
Figure 2004137447

【0055】
【発明の効果】
以上説明したように、本発明の製造方法から得られる樹脂組成物は、HDT、MFRの物性のバラツキ小さく、且つ耐衝撃性の向上を達成できる。
[0055]
【The invention's effect】
As described above, the resin composition obtained by the production method of the present invention has a small variation in the physical properties of HDT and MFR, and can achieve an improvement in impact resistance.

JP2003129365A 2002-08-22 2003-05-07 Production method and flame-retardant resin composition thereof Expired - Fee Related JP4219211B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003129365A JP4219211B2 (en) 2002-08-22 2003-05-07 Production method and flame-retardant resin composition thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002242524 2002-08-22
JP2003129365A JP4219211B2 (en) 2002-08-22 2003-05-07 Production method and flame-retardant resin composition thereof

Publications (3)

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JP2004137447A JP2004137447A (en) 2004-05-13
JP2004137447A5 true JP2004137447A5 (en) 2006-03-30
JP4219211B2 JP4219211B2 (en) 2009-02-04

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7179869B2 (en) 2004-03-22 2007-02-20 Mitsubishi Gas Chemical Company, Inc. Process for producing polyester resins
US8710119B2 (en) 2005-03-29 2014-04-29 Asahi Kasei Chemicals Corporation Process for producing polyphenylene ether composition
EP2253657B1 (en) * 2008-03-13 2015-06-03 Nippon Shokubai Co., Ltd. Method for producing particulate water-absorbing agent composed principally of a water-absorbing resin
JP2012076275A (en) * 2010-09-30 2012-04-19 Toray Ind Inc Powder material supply device, and method of manufacturing thermoplastic resin composition
CN102585481B (en) * 2012-01-06 2014-07-16 聚威工程塑料(上海)有限公司 Conductive and flame-retardant polyphenyl ether resin composition and preparation method thereof
US8912261B2 (en) * 2012-06-22 2014-12-16 Sabic Global Technologies B.V. Process for making particulate-free poly(phenylene ether) compositions and photovoltaic backsheet materials derived therefrom
JP6422416B2 (en) * 2015-09-28 2018-11-14 旭化成株式会社 Process for producing polyphenylene ether resin composition

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* Cited by examiner, † Cited by third party
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JPH04276418A (en) * 1991-03-04 1992-10-01 Japan Steel Works Ltd:The Powder compression apparatus
JPH05286011A (en) * 1992-04-08 1993-11-02 Japan Steel Works Ltd:The Method and device for compressing powder
JPH081666A (en) * 1994-06-27 1996-01-09 Asahi Chem Ind Co Ltd Production of thermoplastic resin composition high in dimensional accuracy
JP3194413B2 (en) * 1995-03-13 2001-07-30 株式会社神戸製鋼所 Twin screw kneader
JP3989075B2 (en) * 1997-02-18 2007-10-10 旭化成ケミカルズ株式会社 Method for producing resin composition
JPH11165341A (en) * 1997-12-04 1999-06-22 Toshiba Mach Co Ltd Raw material supply chute for double-screw extruder
JP4190941B2 (en) * 2002-08-22 2008-12-03 旭化成ケミカルズ株式会社 Production method and resin composition thereof
JP4118741B2 (en) * 2002-08-22 2008-07-16 旭化成ケミカルズ株式会社 Method for producing novel resin composition and resin composition thereof
JP4236517B2 (en) * 2002-08-22 2009-03-11 旭化成ケミカルズ株式会社 Method for producing flame retardant resin composition

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