JPS6147810A - Fibrous poly-alpha-methylstyrene and production thereof - Google Patents
Fibrous poly-alpha-methylstyrene and production thereofInfo
- Publication number
- JPS6147810A JPS6147810A JP16479884A JP16479884A JPS6147810A JP S6147810 A JPS6147810 A JP S6147810A JP 16479884 A JP16479884 A JP 16479884A JP 16479884 A JP16479884 A JP 16479884A JP S6147810 A JPS6147810 A JP S6147810A
- Authority
- JP
- Japan
- Prior art keywords
- methylstyrene
- poly
- alpha
- fibers
- fibrous
- 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
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は繊維状のポリ−α−メチルスチレン及びその製
造法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to fibrous poly-α-methylstyrene and a method for producing the same.
ポリ−α−メチルスチレンは比較的低温で分解して揮発
性の低分子量化合物となることから種々の用途が期待で
きるポリマーである。しかしながら、軟化温度と分解温
度が比較的近いため、特定の形状のものしか得られず、
繊維状のポリ−α−メチルスチレンは知られていなかっ
た。Poly-α-methylstyrene is a polymer that can be expected to have various uses because it decomposes at relatively low temperatures to become a volatile low-molecular-weight compound. However, because the softening temperature and decomposition temperature are relatively close, only certain shapes can be obtained.
Fibrous poly-α-methylstyrene was not known.
本発明の目的は易分解性繊維として有用なポリ−α−メ
チルスチレン繊維を提供することにある。An object of the present invention is to provide poly-α-methylstyrene fibers useful as easily degradable fibers.
本発明の他の目的はポリ−α−メチルスチレン繊維を容
易に製造する方法を提供することにある。Another object of the present invention is to provide a method for easily producing poly-α-methylstyrene fibers.
本発明の繊維状ポリ−α−メチルスチレンは１００デニ
ール以下であって、かつ長さ対直径の比が５０：１以上
であるものである。長さ対直径の比は好ましくは１００
： １、特１に好ましくは２００融したポリ−α−メチ
ルスチレン流をガス流と金流させることを特徴とするも
のである。The fibrous poly-α-methylstyrene of the present invention has a denier of 100 or less and a length to diameter ratio of 50:1 or more. The length to diameter ratio is preferably 100
1. Particularly preferably 200% of melted poly-α-methylstyrene stream is made into a gas stream and a metal stream.
本発明において使用するポリ−α−メチルスチレンは常
法に従ってα−メチルスチレンをイオン重合して得られ
るポリ−α−メチルスチレンを主成分とし、これに溶融
粘度を調整するための可塑剤を添加したものからなる。The poly-α-methylstyrene used in the present invention is mainly composed of poly-α-methylstyrene obtained by ionic polymerization of α-methylstyrene according to a conventional method, and a plasticizer is added to this to adjust the melt viscosity. Consists of what was done.
これらの可塑剤としてはポリ−α−メチルスチレンと相
溶性がありかつ２５０℃以上の沸点を有する化合物が用
いられる。As these plasticizers, compounds that are compatible with poly-α-methylstyrene and have a boiling point of 250° C. or higher are used.
２５０℃以下の沸点を有する化合物の場合、溶融時に揮
散したり、発泡の原因となるので好ましくない。具体的
には、フタル酸ンメチル、フタル酸ジエチル、フタル酸
ンプテル、フタル酸ジオクチル等のフタル酸エステル類
、リン酸トリブチル、リン酸トリフェニル等のリン酸エ
ステル類、α−メチルスチレンの２量体から６世体のオ
リゴマーなどが挙げられる。これらの化合物は単一で使
用しても、混合して使用しても差し支えない。これらの
可塑剤はポリ−α−メチルスチレン１００重量部に対し
て１０重量部以上添加することが好ましし＼。In the case of a compound having a boiling point of 250° C. or lower, it is not preferable because it volatilizes during melting or causes foaming. Specifically, phthalate esters such as methyl phthalate, diethyl phthalate, phthalate, dioctyl phthalate, phosphate esters such as tributyl phosphate and triphenyl phosphate, dimer of α-methylstyrene. Examples include oligomers of six generations. These compounds may be used alone or in combination. It is preferable to add 10 parts by weight or more of these plasticizers to 100 parts by weight of poly-α-methylstyrene.
繊維状ポリマーの生成条件及び形状は溶融したポリ−α
−メチルスチレンの粘度及びガス流速によって変化する
。一般的には溶融したポリ−α−メチルスチレンの粘度
が小さく、ガス流速が大きいほど生成する繊維の直径が
小さくなる傾向がある。The production conditions and shape of the fibrous polymer are molten poly-α
-Varies with methylstyrene viscosity and gas flow rate. Generally, the smaller the viscosity of molten poly-α-methylstyrene and the higher the gas flow rate, the smaller the diameter of the produced fibers tends to be.
溶融したポリ−α−メチルスチレンの粘度が１０００ポ
イズ以下であることが好ましい。粘度が１０００ボイズ
以上になると、繊維状ポリ−α−メチルスチレンが得ら
れず、溶融したポリ−α−メチルスチレンは不定形の固
まりとなって流出する傾向がある。It is preferable that the viscosity of the molten poly-α-methylstyrene is 1000 poise or less. When the viscosity exceeds 1000 voids, fibrous poly-α-methylstyrene cannot be obtained, and the molten poly-α-methylstyrene tends to flow out as an amorphous mass.
ポリ−α−メチルスチレンの溶融粘度は添加した可塑剤
及び溶融温度によっても大きな影響を受ける。添付図面
２は本発明において使用するポリ−α−メチルスチレン
の温度−溶融粘度曲線の一例を示す。The melt viscosity of poly-α-methylstyrene is also greatly influenced by the added plasticizer and the melting temperature. Attached FIG. 2 shows an example of the temperature-melt viscosity curve of poly-α-methylstyrene used in the present invention.
本発明で使用するガスの流速は２０ｍ／ｓｅｃ以上であ
ることが好ましく２０ｍ／ｓｅｃ以下では繊維状ポリ−
α−メチルスチレンは得られず、不定形または球状の固
まりとなる傾向がある。The flow rate of the gas used in the present invention is preferably 20 m/sec or more, and if it is 20 m/sec or less, the fibrous polyester
α-methylstyrene is not obtained and tends to form amorphous or spherical masses.
本発明の繊維状ポリ−α−メチルスチレンの製造方法を
第１図を参照して具体的に説明する。ポリ−α−メチル
ステノンは試料投入口２より加熱容器１中に投入され、
加熱ヒーター７により加熱されて溶融される。得られた
溶融ポリマー９は、・ガス導入管３より導入される加圧
ガスにより溶融ポリマー流出用ノズル４から押し出され
溶融したポリ−α−メチルスチレン流となって流出する
。The method for producing fibrous poly-α-methylstyrene of the present invention will be specifically explained with reference to FIG. Poly-α-methylstenone is introduced into the heating container 1 through the sample input port 2,
It is heated and melted by the heater 7. The obtained molten polymer 9 is pushed out from the molten polymer outflow nozzle 4 by the pressurized gas introduced through the gas introduction pipe 3 and flows out as a stream of molten poly-α-methylstyrene.
このポリ−α−メチルスチレン流は、ガス噴射装置６の
ガス流出用ノズル５から噴射されるガス流と合流して吹
き飛ばされて、繊維状ポリ−α−メチルスチレンが生成
する。生成したポリ−α−メチルスチレンの繊維は網製
のローラー８などにより集められる。以下に実施例を示
して本発明をさらに具体的に説明する。This poly-α-methylstyrene flow merges with the gas flow injected from the gas outflow nozzle 5 of the gas injection device 6 and is blown away to produce fibrous poly-α-methylstyrene. The produced poly-α-methylstyrene fibers are collected by a net roller 8 or the like. EXAMPLES The present invention will be explained in more detail with reference to Examples below.
実施例１
α−メチルスチレンオリゴマーを含有し、環球法による
軟化点温度が１５０℃であるポリ−α−メチルスチレン
を、第１図に示したスティンレススチール製加熱容器に
投入し、２００℃に加熱してポリマーを溶融した。得ら
れた２００℃の溶融ポリマーは加熱容器内部を軽く加圧
することにより加熱容器の下部に取りつげた内径１．５
器のノズルから流出する。溶融したポリ−α−メチルス
チレン流はさらに５０ｍ／ｓｅｃの窒素ガス流と合流さ
れポリマーは繊維状になって吹き飛ばされ網製のロール
によって集められた。繊維状ポリ−α−メチルスチレン
は１９デニールの長繊維であった。Example 1 Poly-α-methylstyrene containing α-methylstyrene oligomer and having a softening point temperature of 150°C by the ring and ball method was placed in a stainless steel heating container shown in Fig. 1 and heated to 200°C. Heat was applied to melt the polymer. The obtained molten polymer at 200°C was placed at the bottom of the heating container by lightly pressurizing the inside of the heating container.
It flows out from the nozzle of the vessel. The molten poly-alpha-methylstyrene stream was further combined with a nitrogen gas stream at a rate of 50 m/sec, and the polymer was blown into fibers and collected by a mesh roll. The fibrous poly-α-methylstyrene was a 19 denier long fiber.
さらに加熱容器の加熱温度を下げてい（と、流出して（
るポリ−α−メチルスチレンの粘度が増加し、１７５℃
では溶融したポリ−α−メチルスチレンは窒素ガス流と
合流しても吹き飛ばされることな（ノズル出口付近で塊
まりとなってしまった。Furthermore, the heating temperature of the heating container was lowered (and the water leaked out).
The viscosity of poly-α-methylstyrene increases and
In this case, the molten poly-α-methylstyrene was not blown away even when it merged with the nitrogen gas flow (it formed a lump near the nozzle exit).
ここで使用したポリ−α−メチルスチレンの溶融粘度一
温度曲線を測定した結果を第２図の曲線１に示した。第
２図から明らかなように、２００ ”Ｃの溶融粘度は１
９０ポイズであり、１７５℃における溶融粘度が１２０
０ポイズである。The results of measuring the melt viscosity versus temperature curve of the poly-α-methylstyrene used here are shown in curve 1 in FIG. As is clear from Figure 2, the melt viscosity of 200"C is 1
90 poise, and the melt viscosity at 175°C is 120
It is 0 poise.
実施例２
α−メチルスチレンオリゴマーを含有し、環球法による
軟化点温度が１００℃であるポリ−α−メチルスチレン
を第１図に示したステンレススチール製の加熱容器に仕
込んだ後に加熱して１５０’Ｃでポリマーを溶融させた
。Example 2 Poly-α-methylstyrene containing α-methylstyrene oligomer and having a softening point temperature of 100°C by the ring and ball method was charged into a stainless steel heating container shown in Fig. 1 and heated to 150°C. The polymer was melted at 'C.
加熱容器の下部には内径１．５ ＋ｕのノズルが取りつ
げてあり、加熱容器内部を軽（加圧することによりノズ
ルから溶融ポリマーが流出する。溶融ポリマー流はさら
に８０ｍ／ｓｅｃの窒素ガス流と合流され、ポリマーは
繊維状になって吹き飛ばされ網製のロール上に集められ
た。３デニールのポリ−α−メチルスチレン長繊維が得
られた。A nozzle with an inner diameter of 1.5 + U is attached to the bottom of the heating container, and by applying light pressure to the inside of the heating container, the molten polymer flows out from the nozzle. The polymers were combined and blown into fibers and collected on a mesh roll to obtain 3 denier poly-α-methylstyrene filaments.
ここで使用したポリ−α−メチルスチレンの溶融粘度一
温度曲線を第２図の曲線２に示した。との図から明らか
なように１５０℃の溶融粘度が７５ポイズである。窒素
ガス流速を８０ｍ／ｓｅｃから徐々に小さくしていくと
生成繊維の直径が大きくなり、２０ｍ／ｓｅｃの流速で
約１００デニールのポリ−α−メチルスチレン繊維が得
られた。窒素ガス流速を２０ ｍ／ｓ ｅ ｃよりも小
さくするとポリ−α−メチルスチレンが液滴状になり始
めさらに小さくすると繊維状のポリ−α−メチルスチレ
ンは全く得ることができな（なった。The melt viscosity versus temperature curve of poly-α-methylstyrene used here is shown in curve 2 in FIG. As is clear from the figure, the melt viscosity at 150°C is 75 poise. As the nitrogen gas flow rate was gradually reduced from 80 m/sec, the diameter of the produced fibers increased, and poly-α-methylstyrene fibers of about 100 denier were obtained at a flow rate of 20 m/sec. When the nitrogen gas flow rate was lower than 20 m/sec, poly-α-methylstyrene began to form into droplets, and when the flow rate was further reduced, no fibrous poly-α-methylstyrene could be obtained.
実施例３
実施例２において溶融温度を１８０℃として窒素ガス流
速を１８５ｍ／ｓｅｃに変えたところ０．６〜１デニー
ルで平均長さ１０Ｍのポリ−α−メチルスチレン短繊維
が得られた。Example 3 In Example 2, when the melting temperature was changed to 180° C. and the nitrogen gas flow rate was changed to 185 m/sec, short poly-α-methylstyrene fibers with a denier of 0.6 to 1 denier and an average length of 10 M were obtained.
本発明方法により、１００デニール以下であって、かつ
５０：１以上の長さ対直径比を有する長繊維及び短繊維
状ポリ−α−メチルスチレンを容易に製造することがで
きる。また本発明の繊維状ポリスチレンは、易分解性繊
維としてセラミックス成形体用添加物などに利用するこ
とができるなど産業上の利用効果が高い。By the method of the present invention, long and short fiber poly-α-methylstyrene having a length of 100 deniers or less and a length-to-diameter ratio of 50:1 or more can be easily produced. Furthermore, the fibrous polystyrene of the present invention has high industrial utility effects, such as being able to be used as an additive for ceramic molded bodies as an easily degradable fiber.
第１図は本発明において使用されるポリ−α−メチルス
チレン繊維の製造装置を示す概略図、第２図はポリ−α
−メチルスチレンの温度−溶融粘度曲線であり、曲線１
は実施例１で使用したポリ−α−メチルスチレンのそれ
を、曲＠２は実施例２で使用したポリ−α−メチルスチ
レンのそれを示す。
１・・・加熱容器
２・・・試料投入口
３・・・ガス導入管
４・・・溶融ポリマー流出用ノズル
５・・・ガス流出用ノズル
６・・・ガス噴射装置
７・・・加熱ヒーター
８・・・網製ドラム
９・・・溶融ポリマーFIG. 1 is a schematic diagram showing the production equipment for poly-α-methylstyrene fiber used in the present invention, and FIG.
- Temperature-melt viscosity curve of methylstyrene, curve 1
shows that of the poly-α-methylstyrene used in Example 1, and song @2 shows that of the poly-α-methylstyrene used in Example 2. 1...Heating container 2...Sample inlet 3...Gas introduction tube 4...Nozzle for outflow of molten polymer 5...Nozzle for outflow of gas 6...Gas injection device 7...Heating heater 8...Mesh drum 9...Melted polymer
Claims (3)
比が５０：１以上である繊維状ポリ−α−メチルスチレ
ン。(1) Fibrous poly-α-methylstyrene having a denier of 100 denier or less and a length-to-diameter ratio of 50:1 or more.
合流させることを特徴とする１００デニール以下であつ
て、かつ長さ対直径の比が５０：１以上の繊維状ポリ−
α−メチルスチレンの製造方法。(2) A fibrous polyester resin having a diameter of 100 denier or less and a length-to-diameter ratio of 50:1 or more, characterized in that a stream of molten poly-α-methylstyrene is merged with a gas stream.
Method for producing α-methylstyrene.
００ポイズ以下であり、かつガスの流速が２０ｍ／ｓｅ
ｃ以上である特許請求の範囲第２項記載の方法。(3) The viscosity of molten poly-α-methylstyrene is 10
00 poise or less, and the gas flow velocity is 20 m/sec
3. The method according to claim 2, which is at least c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16479884A JPS6147810A (en) | 1984-08-08 | 1984-08-08 | Fibrous poly-alpha-methylstyrene and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16479884A JPS6147810A (en) | 1984-08-08 | 1984-08-08 | Fibrous poly-alpha-methylstyrene and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6147810A true JPS6147810A (en) | 1986-03-08 |
| JPH0377285B2 JPH0377285B2 (en) | 1991-12-10 |
Family
ID=15800132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16479884A Granted JPS6147810A (en) | 1984-08-08 | 1984-08-08 | Fibrous poly-alpha-methylstyrene and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6147810A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595694A (en) * | 1992-12-22 | 1997-01-21 | Reedy; Michael E. | Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5167411A (en) * | 1974-12-09 | 1976-06-11 | Asahi Chemical Ind | |
| JPS5493117A (en) * | 1977-11-29 | 1979-07-24 | Exxon Research Engineering Co | Ionic thermoplastic polymer fiber |
| JPS554842A (en) * | 1978-06-27 | 1980-01-14 | Shin Kobe Electric Mach Co Ltd | Preparation of plate for lead accumulator |
-
1984
- 1984-08-08 JP JP16479884A patent/JPS6147810A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5167411A (en) * | 1974-12-09 | 1976-06-11 | Asahi Chemical Ind | |
| JPS5493117A (en) * | 1977-11-29 | 1979-07-24 | Exxon Research Engineering Co | Ionic thermoplastic polymer fiber |
| JPS554842A (en) * | 1978-06-27 | 1980-01-14 | Shin Kobe Electric Mach Co Ltd | Preparation of plate for lead accumulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595694A (en) * | 1992-12-22 | 1997-01-21 | Reedy; Michael E. | Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases |
| US5817261A (en) * | 1992-12-22 | 1998-10-06 | Reedy International Corp. | Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby |
| USRE38993E1 (en) * | 1992-12-22 | 2006-02-28 | Reedy International Corporation | Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0377285B2 (en) | 1991-12-10 |
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