JP2002003666A - Resin composition for cleaning and method of cleaning - Google Patents
Resin composition for cleaning and method of cleaningInfo
- Publication number
- JP2002003666A JP2002003666A JP2000185949A JP2000185949A JP2002003666A JP 2002003666 A JP2002003666 A JP 2002003666A JP 2000185949 A JP2000185949 A JP 2000185949A JP 2000185949 A JP2000185949 A JP 2000185949A JP 2002003666 A JP2002003666 A JP 2002003666A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- resin composition
- ethylene
- resin
- unsaturated carboxylic
- 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
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Detergent Compositions (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、押出成形装置内に
残存する特定樹脂の残渣をパージするための洗浄用樹脂
組成物およびその洗浄用樹脂組成物を用いた洗浄方法に
関するものであり、より詳しくは、エチレン−不飽和カ
ルボン酸共重合体と、オレフィン系樹脂の成形を同一の
成形装置を共用して行う際に、先にエチレン−不飽和カ
ルボン酸共重合体あるいはその金属中和物を成形して、
ダイス内に残るその樹脂の残渣を、洗浄効率を高めて短
時間でパージし、次いで行うオレフィン系樹脂の成形に
悪影響をもたらさないための洗浄用樹脂組成物およびそ
の洗浄方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning resin composition for purging a specific resin residue remaining in an extrusion molding apparatus and a cleaning method using the cleaning resin composition. Specifically, when the same molding apparatus is used for molding the ethylene-unsaturated carboxylic acid copolymer and the olefin resin, the ethylene-unsaturated carboxylic acid copolymer or its metal neutralized product is first used. Molding,
The present invention relates to a cleaning resin composition for purifying a resin residue remaining in a die in a short time by increasing the cleaning efficiency and not adversely affecting the subsequent molding of an olefin resin, and a cleaning method thereof.
【０００２】[0002]
【従来の技術】エチレン−不飽和カルボン酸共重合体あ
るいはその金属中和物などのエチレン−不飽和カルボン
酸共重合体系樹脂は、フィルム、シートあるいはラミネ
ーション成形など、押出成形機を用いる成形に広く利用
されている。また、それと同様にポリオレフィン系樹脂
を用いてのフィルム、シートあるいはラミネーション成
形なども、押出成形機を用いて成形されることが一般的
である。このような場合に、樹脂が異なるからといって
それぞれ異なる成形機を用いて成形することは経済的な
理由からも通常は行われず、同一の押出し成形機を共用
することが普通に行われている。2. Description of the Related Art Ethylene-unsaturated carboxylic acid copolymer resins such as an ethylene-unsaturated carboxylic acid copolymer or a metal neutralized product thereof are widely used in molding using an extrusion molding machine such as film, sheet or lamination molding. It's being used. Similarly, a film, sheet, or lamination molding using a polyolefin-based resin is generally molded using an extruder. In such a case, molding using different molding machines is not usually performed even for different reasons because of different resins, and it is common practice to share the same extrusion molding machine for economic reasons. I have.
【０００３】ところが、複数の樹脂を同一の成形機で成
形する場合には、仮に、それぞれの樹脂が共に透明な製
品を成形するのであっても、融点の違いなどを勘案して
それぞれの樹脂に応じた成形条件が設定されるものであ
り、異なる樹脂をそのまま連続的に成形することは行わ
れていない。まして、複数の製品が異なる着色を施され
る成形品である場合においては、ダイス内に第１の樹脂
の着色残渣が残存しているために、なおさらのことその
まま第２の樹脂を連続成形することははできない。However, in the case where a plurality of resins are molded by the same molding machine, even if the respective resins are both molded into a transparent product, each resin is formed in consideration of a difference in melting point and the like. Molding conditions are set according to the conditions, and different resins are not continuously molded as they are. Furthermore, in the case where a plurality of products are molded products which are given different colors, the second resin is continuously molded as it is because the colored resin residue of the first resin remains in the die. I can't do that.
【０００４】とくにＴダイのように樹脂の圧力が均等に
かかりにくい成形機の場合は、ダイスの両端部分に残存
する残渣をパージするのに長時間を要し、さらに、第１
の成形樹脂がエチレン−不飽和カルボン酸共重合体のよ
うに、金属との接着性に優れる樹脂の場合は、なおのこ
と、ダイス内に樹脂の残渣がこびりつくような状態で残
存し、この樹脂のパージは一層困難である。従来、この
ような残存樹脂のパージのために、エチレン−不飽和カ
ルボン酸エステル共重合体をパージ剤としてダイスに供
給し、残存する樹脂を追い出すような形でのパージング
が行われている。In particular, in the case of a molding machine in which the pressure of the resin is difficult to apply evenly like a T-die, it takes a long time to purge the residue remaining at both ends of the die.
When the molding resin of the above is a resin having excellent adhesiveness to a metal such as an ethylene-unsaturated carboxylic acid copolymer, the resin residue remains in the die in a state of sticking, and the resin is purged. Is even more difficult. Conventionally, in order to purge such a residual resin, purging is performed in such a manner that an ethylene-unsaturated carboxylic acid ester copolymer is supplied to a die as a purge agent to drive out the residual resin.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、ダイス
内をパージするために、新たに、エチレン−不飽和カル
ボン酸共重合体をダイスに供給して、ダイス内に残存す
る樹脂をすべて追い出すには、かなりの時間がかかるば
かりでなく、高価なエチレン−不飽和カルボン酸共重合
体をパージのために使わなければならないという不経済
性があり、その改善が望まれている。However, in order to purge the inside of the die, a new ethylene-unsaturated carboxylic acid copolymer is supplied to the die and all the resin remaining in the die is expelled. Not only does this take a considerable amount of time, but also the uneconomical necessity of using an expensive ethylene-unsaturated carboxylic acid copolymer for purging, and an improvement thereof is desired.
【０００６】本出願人は、このような技術的課題を踏ま
えて、第１の樹脂として、エチレン−不飽和カルボン酸
共重合体を用いて押出成形した時に、そのパージ剤とし
て、特定粘度のポリエチレンとエチレン−不飽和カルボ
ン酸エステル共重合体のブレンドをベースポリマーとし
て、これに無機充填剤、化学発泡剤、およびスリップ剤
を混合した組成物が、第１の樹脂としてエチレン−不飽
和カルボン酸共重合体を用いて押出し成形した時のパー
ジ剤として優れていることを見いだし、特許出願してい
る（特開平７−９５３１号公報）。[0006] In view of such technical problems, the present applicant has proposed that when a first resin is extruded using an ethylene-unsaturated carboxylic acid copolymer, a polyethylene having a specific viscosity is used as a purging agent. And a blend of an inorganic filler, a chemical foaming agent, and a slipping agent as a base resin with a blend of ethylene-unsaturated carboxylic acid ester copolymer and ethylene-unsaturated carboxylic acid copolymer as a first resin. It has been found that it is excellent as a purge agent when extrusion-molded using a polymer, and a patent application has been filed (JP-A-7-9531).
【０００７】本出願人は、その後も、上記先行技術をさ
らに発展させるために研究を重ね、第１の樹脂として、
エチレン−不飽和カルボン酸共重合体を用いた場合のダ
イス内に残存する樹脂残渣をパージするためのより有効
なパージ剤を求めて研究を重ねて来たところである。[0007] The present applicant has continued to study to further develop the above prior art, and as a first resin,
Research has been conducted in search of a more effective purging agent for purging resin residues remaining in a die when an ethylene-unsaturated carboxylic acid copolymer is used.
【０００８】そこで、本発明の目的は、第１の樹脂とし
て、エチレン−不飽和カルボン酸共重合体またはその金
属中和物を用いて押出し成形した場合の、ダイス内に残
存する残渣を速やかにパージし、かつ洗浄効果に優れた
洗浄用樹脂組成物を提供すること、ならびに該洗浄用樹
脂組成物を用いた押出成形機の洗浄方法を提供すること
にある。Accordingly, an object of the present invention is to quickly remove residues remaining in a die when extrusion molding is performed using an ethylene-unsaturated carboxylic acid copolymer or a metal neutralized product thereof as the first resin. An object of the present invention is to provide a cleaning resin composition that is excellent in purging and cleaning effects, and to provide a method for cleaning an extruder using the cleaning resin composition.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記目的を達
成するために提案されてものであって、エチレン−不飽
和カルボン酸エステル共重合体と、高粘度の低密度ポリ
エチレンを含む組成物を洗浄用樹脂組成物として用いた
点に特徴がある。すなわち、本発明によれば、エチレン
−不飽和カルボン酸エステル共重合体１０ないし９９重
量％と、高粘度の低密度ポリエチレン９０ないし１重量
％からなる押出成形機用の洗浄用樹脂組成物が提供され
る。DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object, and comprises a composition comprising an ethylene-unsaturated carboxylic acid ester copolymer and a high-viscosity low-density polyethylene. Is used as a cleaning resin composition. That is, according to the present invention, there is provided a cleaning resin composition for an extruder comprising 10 to 99% by weight of an ethylene-unsaturated carboxylic acid ester copolymer and 90 to 1% by weight of a high-viscosity low-density polyethylene. Is done.
【００１０】また、本発明によれば、さらに、炭酸水素
アルカリ金属塩の無機発泡剤を配合した上記洗浄用樹脂
組成物が提供される。According to the present invention, there is further provided the above-mentioned resin composition for cleaning, further comprising an inorganic foaming agent of an alkali metal hydrogencarbonate.
【００１１】また、本発明によれば、低密度ポリエチレ
ンのＭＦＲ（１９０℃，２１６０ｇ）が２ｇ／１０分以
下である上記洗浄用樹脂組成物が提供される。Further, according to the present invention, there is provided the above-mentioned resin composition for cleaning, wherein the low density polyethylene has an MFR (190 ° C., 2160 g) of 2 g / 10 minutes or less.
【００１２】また、本発明によれば、エチレン−不飽和
カルボン酸共重合体あるいはその金属中和物の押出成形
後に同一押出成形機を用いてポリオレフィン系樹脂の成
形を行う方法であって、前記ポリオレフィン系樹脂の成
形前に、前記押出成形機に、エチレン−不飽和カルボン
酸エステル共重合体１０ないし９９重量％と、高粘度の
低密度ポリエチレン９０ないし１重量％からなる洗浄用
樹脂組成物を供給し、加熱下に溶融押出しすることによ
り、成形機内のエチレン−不飽和カルボン酸共重合体あ
るいはその金属中和物をパージすることを特徴とする押
出成形機内の洗浄方法が提供される。Further, according to the present invention, there is provided a method for extruding an ethylene-unsaturated carboxylic acid copolymer or a metal neutralized product thereof and thereafter molding the polyolefin resin using the same extruder. Before molding the polyolefin-based resin, the extruder was used to prepare a cleaning resin composition comprising 10 to 99% by weight of an ethylene-unsaturated carboxylic acid ester copolymer and 90 to 1% by weight of a high-viscosity low-density polyethylene. A method for cleaning the inside of an extruder is provided, which comprises purging an ethylene-unsaturated carboxylic acid copolymer or a metal neutralized product thereof in the molder by feeding and melt-extruding the mixture under heating.
【００１３】[0013]
【発明の実施の形態】本発明の特徴は、洗浄用樹脂組成
物として、エチレン−不飽和カルボン酸エステル共重合
体系樹脂と高粘度の低密度ポリエチレンを含む組成物を
用いた点にある。DESCRIPTION OF THE PREFERRED EMBODIMENTS The feature of the present invention resides in that a composition containing an ethylene-unsaturated carboxylic acid ester copolymer resin and a high-viscosity low-density polyethylene is used as a cleaning resin composition.
【００１４】＜エチレン−不飽和カルボン酸エステル共
重合体＞本発明において用いるエチレン−不飽和カルボ
ン酸エステル共重合体とは、エチレンと、不飽和カルボ
ン酸エステルの重合単位を含み、２０％までの他の重合
単位を含み得る共重合体である。エチレンと共重合され
る不飽和カルボン酸エステルの例としては、アクリル酸
メチル、アクリル酸エチル、アクリル酸イソプロピル、
アクリル酸ｎ−ブチル、アクリル酸イソブチル、アクリ
ル酸２−エチルヘキシル、メタクリル酸メチル、フマル
酸ジメチル、マレイン酸ジメチルなどが例示される。エ
チレンと不飽和カルボン酸エステルの重合割合は、とく
に限定されるものではないが、通常、エチレンが７０な
いし９８重量％、好ましくは７５ないし９５重量％、不
飽和カルボン酸エステルが２ないし３０重量％、好まし
くは、５ないし２５重量％である。。エチレン−不飽和
カルボン酸エステル共重合体のメルトフローレートは、
０．０１ないし１０ｇ／１０分（１９０℃、２１６０
ｇ）程度が好ましい。<Ethylene-unsaturated carboxylic acid ester copolymer> The ethylene-unsaturated carboxylic acid ester copolymer used in the present invention includes ethylene and unsaturated carboxylic acid ester polymerized units, and has a content of up to 20%. It is a copolymer that may contain other polymerized units. Examples of unsaturated carboxylic acid esters copolymerized with ethylene include methyl acrylate, ethyl acrylate, isopropyl acrylate,
Examples thereof include n-butyl acrylate, isobutyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, dimethyl fumarate, and dimethyl maleate. The polymerization ratio of ethylene and the unsaturated carboxylic acid ester is not particularly limited, but is usually 70 to 98% by weight, preferably 75 to 95% by weight, and 2 to 30% by weight of the unsaturated carboxylic acid ester. , Preferably 5 to 25% by weight. . The melt flow rate of the ethylene-unsaturated carboxylic acid ester copolymer is
0.01 to 10 g / 10 minutes (190 ° C., 2160
g) is preferred.
【００１５】＜低密度ポリエチレン＞本発明において、
エチレン−不飽和カルボン酸エステル共重合体とブレン
ドされる高粘度の低密度ポリエチレンは、そのＭＦＲ
（メルトフローレート・１９０℃、２１６０ｇ）が２ｇ
／１０分以下、とくに０．０１ないし１．５ｇ／１０分
の高粘度の低密度ポリエチレンである。<Low density polyethylene> In the present invention,
The high viscosity, low density polyethylene blended with the ethylene-unsaturated carboxylic acid ester copolymer has an MFR
(Melt flow rate, 190 ° C, 2160g) 2g
It is a low-density polyethylene having a high viscosity of / 10 minutes or less, particularly 0.01 to 1.5 g / 10 minutes.
【００１６】＜洗浄用樹脂組成物＞本発明の洗浄用樹脂
組成物は、上記エチレン−不飽和カルボン酸エステル共
重合体１０ないし９９重量％と、高粘度の低密度ポリエ
チレン９０ないし１重量％からなるものである。両者の
配合比は、パージされるエチレン−不飽和カルボン酸共
重合体あるいはその金属中和物の特性に応じて、上記範
囲内で適宜変更されるが、エチレン−不飽和カルボン酸
エステル共重合体７０ないし９５重量％と、低密度ポリ
エチレン３０ないし５重量％の範囲が好ましい。<Cleaning Resin Composition> The cleaning resin composition of the present invention comprises 10 to 99% by weight of the above-mentioned ethylene-unsaturated carboxylic acid ester copolymer and 90 to 1% by weight of high-viscosity low-density polyethylene. It becomes. The mixing ratio of the two may be appropriately changed within the above range according to the properties of the purged ethylene-unsaturated carboxylic acid copolymer or its metal neutralized product. The range is preferably 70 to 95% by weight and low density polyethylene 30 to 5% by weight.
【００１７】本発明の洗浄用樹脂組成物には、さらに、
炭酸水素ナトリウム、炭酸水素カリウムなどの炭酸水素
アルカリ金属塩の無機発泡剤を配合することによって、
残存樹脂の置換効率を高めることができる。上記無機発
泡剤の配合割合は、洗浄用樹脂組成物１００重量部に対
して、０．１ないし１０重量部、好ましくは０．５ない
し５重量部であり、この配合量がこれ以上に多くなる
と、押出し安定性が阻害され、また、パージ時に発煙や
発臭がもたらされることがある。本発明の洗浄用樹脂組
成物には、必要に応じて、本発明の効果を損なわない範
囲で自体公知の酸化防止剤や耐熱安定剤等を配合するこ
とができる。The cleaning resin composition of the present invention further comprises:
By blending inorganic foaming agent of alkali metal bicarbonate such as sodium bicarbonate and potassium bicarbonate,
The replacement efficiency of the residual resin can be increased. The mixing ratio of the inorganic foaming agent is 0.1 to 10 parts by weight, preferably 0.5 to 5 parts by weight, based on 100 parts by weight of the cleaning resin composition. In addition, extrusion stability may be impaired, and smoke or odor may be generated during purging. If necessary, an antioxidant or a heat stabilizer known per se can be added to the cleaning resin composition of the present invention as long as the effects of the present invention are not impaired.
【００１８】洗浄方法は、例えば、下記の方法によって
行われる。エチレン−不飽和カルボン酸共重合体あるい
はその金属中和物の押出し成形後に、該押出成形機に、
エチレン−不飽和カルボン酸エステル共重合体１０ない
し９９重量％と、高粘度の低密度ポリエチレン９０ない
し１重量％からなる洗浄用樹脂組成物、あるいは上記樹
脂組成物１００重量部に対して炭酸水素アルカリ金属塩
の無機発泡剤を０．１ないし１０重量部加えたものを供
給し、加熱下に溶融押出しする。次に、エチレン−不飽
和カルボン酸エステル共重合体を溶融押出した後、ポリ
オレフィン系樹脂の成形を行う。The cleaning method is performed, for example, by the following method. After extrusion molding of the ethylene-unsaturated carboxylic acid copolymer or its metal neutralized product, the extruder
A cleaning resin composition comprising 10 to 99% by weight of an ethylene-unsaturated carboxylic acid ester copolymer and 90 to 1% by weight of a high-viscosity low-density polyethylene, or 100 parts by weight of the above resin composition, alkali hydrogen carbonate A mixture obtained by adding 0.1 to 10 parts by weight of an inorganic foaming agent of a metal salt is supplied, and is melt-extruded under heating. Next, after the ethylene-unsaturated carboxylic acid ester copolymer is melt-extruded, a polyolefin-based resin is molded.
【００１９】[0019]
【発明の効果】本発明によれば、第１の樹脂としてエチ
レン−不飽和カルボン酸共重合体を用いた場合であって
も、成形機内の洗浄を、素早く、かつ確実に行い得る洗
浄用樹脂組成物が提供され、これによって、第２の樹脂
との切替時間が短縮され、洗浄後の残渣を少量に抑える
ことができるとともに、産業廃棄物の発生を著しく少量
化することができる。According to the present invention, even when an ethylene-unsaturated carboxylic acid copolymer is used as the first resin, a cleaning resin capable of quickly and reliably cleaning the inside of a molding machine. A composition is provided, whereby the switching time with the second resin is shortened, the residue after washing can be reduced to a small amount, and the generation of industrial waste can be significantly reduced.
【００２０】[0020]
【実施例】以下に、実施例によって本発明を説明する
が、これに限定されるものではなく、特許請求の範囲を
逸脱しない限りにおいて、適宜の変更が可能であること
はいうまでもない。The present invention will be described below with reference to examples, but is not limited thereto, and it goes without saying that appropriate changes can be made without departing from the scope of the claims.
【００２１】＜実施例１＞エチレン含量８５重量％、ア
クリル酸エチルエステル含量１５重量％の、エチレン／
アクリル酸エステル共重合体８４重量部と、メルトフロ
ーレートが１．０ｇ／１０分の低密度ポリエチレン１６
重量部を１９０℃、３分間で溶融混合し、１００重量部
の樹脂組成物を得た。以下、これを「パージ樹脂」とい
う。このメルトブレンド品を使用して、以下の手順でＴ
ダイフィルム成形機のパージを行った。加工に際して
は、４０ｍｍφ押出機小型Ｔダイフィルム成形機を使用
した。ダイスは、幅が４５０ｍｍ，リップクリアランス
が０．７ｍｍである。Example 1 Ethylene / 85% by weight ethylene content and 15% by weight ethyl acrylate content
84 parts by weight of an acrylate copolymer and low-density polyethylene 16 having a melt flow rate of 1.0 g / 10 min.
Parts by weight were melted and mixed at 190 ° C. for 3 minutes to obtain 100 parts by weight of a resin composition. Hereinafter, this is referred to as “purge resin”. Using this melt blended product, T
The die film forming machine was purged. For processing, a 40 mmφ extruder small T-die film forming machine was used. The die has a width of 450 mm and a lip clearance of 0.7 mm.
【００２２】＜成形およびその後のパージの手順＞ アイオノマー樹脂（三井・デュポンポリケミカル社
製・エチレン−メタクリル酸共重合体のＺｎ中和物・メ
タクリル酸含量１５重量％、Ｚｎ５９％中和物、１９０
℃、２１６０ｇのメルトフローレート（ＭＦＲ）０．９
ｇ／１０分）に、青ＭＢ１％を添加して着色したフィル
ムを加工した。 引き続き、同成形機に２１０℃で約１５分かけてパー
ジ樹脂５ｋｇを連続的に流した。 ついで、エチレン−エチルアクリレート共重合体
（三井・デュポンポリケミカル社製、エチルアクリレー
ト含量１５重量％、ＭＦＲ＝０．５）５ｋｇを上記同条
件で連続的に流した。 その後引き続き、低密度ポリエチレン（ＭＦＲ＝
２）５ｋｇを上記同条件で連続的に流し、フィルムを成
形した。 以上の結果、の操作を始めて１５分後には、で着色
された残渣は完全に消失し、かつ、フィルム中にはパー
ジ不良によるゲルやブツは見られなかった。<Molding and Subsequent Purging Procedure> An ionomer resin (manufactured by DuPont-Mitsui Polychemicals, a neutralized Zn-ethylene-methacrylic acid copolymer), a methacrylic acid content of 15% by weight, a neutralized Zn 59%, 190
° C, 2160 g melt flow rate (MFR) 0.9
g / 10 minutes) and 1% of blue MB was added to process a colored film. Subsequently, 5 kg of the purge resin was continuously passed through the molding machine at 210 ° C. for about 15 minutes. Then, 5 kg of an ethylene-ethyl acrylate copolymer (manufactured by DuPont-Mitsui Polychemicals Co., Ltd., ethyl acrylate content 15% by weight, MFR = 0.5) was continuously flowed under the same conditions as described above. Subsequently, low-density polyethylene (MFR =
2) 5 kg was continuously flown under the same conditions as above to form a film. As a result, after 15 minutes from the start of the operation, the residue colored with was completely disappeared, and no gel or dust due to poor purging was found in the film.
【００２３】＜実施例２＞実施例１におけるアイオノマ
ー樹脂に代えて、酸コポリマー樹脂（三井・デュポンポ
リケミカル社製・エチレン−メタクリル酸共重合体・メ
タクリル酸含量９重量％、ＭＦＲ＝２．５）を用いた以
外は、実施例１と同様の手順でフィルム成形機のパージ
テストを行った。その結果、以上の結果、の操作を始
めて１５分後には、で着色された残渣は完全に消失
し、かつ、フィルム中にはパージ不良によるゲルやブツ
は見られなかった。Example 2 In place of the ionomer resin in Example 1, an acid copolymer resin (Mitsui, DuPont Polychemical Co., Ltd., ethylene-methacrylic acid copolymer, methacrylic acid content 9% by weight, MFR = 2.5) ) Was performed in the same manner as in Example 1 except that the purge test of the film forming machine was performed. As a result, after 15 minutes from the start of the above operation, the residue colored with was completely disappeared, and no gel or dust due to poor purging was found in the film.
【００２４】＜実施例３＞実施例１で使用した「パージ
樹脂」に代えて、「パージ樹脂」１００重量部に対し、
炭酸水素アルカリ金属塩（商品名「セルボンＳＣ−Ｐ」
・永和化成工業（株）製）を１部ドライブレンドしたも
のを用いた以外は、実施例１と同様の手順でフィルム成
形後のパージテストを行った。以上の結果、の操作を
始めて１０分後にはで着色された残渣は完全に消失
し、かつ、フィルム中にはパージ不良によるゲルやブツ
は見られなかった。<Example 3> Instead of the "purge resin" used in Example 1, 100 parts by weight of "purge resin"
Alkali metal bicarbonate (trade name "Cerbon SC-P"
A purge test after film formation was carried out in the same procedure as in Example 1 except that one part of Eiwa Chemical Co., Ltd.) was dry-blended. As a result, after 10 minutes from the start of the above operation, the colored residue completely disappeared, and no gel or dust due to poor purging was found in the film.
【００２５】＜比較例１＞のパージ樹脂に代えて低密
度ポリエチレン（ＭＦＲ＝２）１５ｋｇを、約４５分か
けて流しは以外は、実施例１と同様の手順でフィルム成
形機のパージを行った。その結果、最終的に、フィルム
の着色は消失していたが、フィルム中にゲルやブツがフ
ィルムの特に両端部に残存していた。<Comparative Example 1> A film forming machine was purged in the same procedure as in Example 1 except that 15 kg of low-density polyethylene (MFR = 2) was flowed in about 45 minutes instead of the purge resin of Comparative Example 1. Was. As a result, although the coloring of the film had finally disappeared, gels and buttocks remained in the film, particularly at both ends of the film.
【００２６】＜比較例２＞のパージ樹脂に代えて高密
度ポリエチレン（ＭＦＲ＝０．０５）５ｋｇを約１５分
かけて流し、さらにの低密度ポリエチレン１０ｋｇを
３０分かけて流した以外は、実施例１と同様の手順でフ
ィルム成形機のパージを行った。その結果、フィルムの
色は消失していたが、高密度ポリエチレンの残渣と思わ
れるブツがフィルム全面に残存していた。The procedure of Comparative Example 2 was repeated except that 5 kg of high-density polyethylene (MFR = 0.05) was flowed over about 15 minutes instead of the purge resin of Example 2 and 10 kg of low-density polyethylene was flowed over 30 minutes. Purging of the film forming machine was performed in the same procedure as in Example 1. As a result, although the color of the film had disappeared, buttocks considered to be residues of high-density polyethylene remained on the entire surface of the film.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ１１Ｄ 7/22 Ｃ１１Ｄ 7/22 17/00 17/00 Ｆターム(参考） 4F207 AA04E AA07 AA21E AM13 KA01 KF01 KK90 KM20 4H003 DA12 DB01 EA16 EB29 EB30 FA20 FA21 4J002 BB03X BB07W BG04W DE226 FD326 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (reference) C11D 7/22 C11D 7/22 17/00 17/00 F term (reference) 4F207 AA04E AA07 AA21E AM13 KA01 KF01 KK90 KM20 4H003 DA12 DB01 EA16 EB29 EB30 FA20 FA21 4J002 BB03X BB07W BG04W DE226 FD326
Claims (4)
重合体１０ないし９９重量％と、高粘度の低密度ポリエ
チレン９０ないし１重量％からなる押出成形機用の洗浄
用樹脂組成物。1. A cleaning resin composition for an extruder comprising 10 to 99% by weight of an ethylene-unsaturated carboxylic acid ester copolymer and 90 to 1% by weight of a high-viscosity low-density polyethylene.
発泡剤を配合した請求項１記載の洗浄用樹脂組成物。2. The cleaning resin composition according to claim 1, further comprising an inorganic foaming agent of an alkali metal hydrogencarbonate.
２１６０ｇ）が２ｇ／１０分以下である請求項１または
２記載の洗浄用樹脂組成物。3. The MFR of low-density polyethylene (190,
The cleaning resin composition according to claim 1 or 2, wherein 2160 g) is 2 g / 10 minutes or less.
るいはその金属中和物の押出成形後に同一押出成形機を
用いてポリオレフィン系樹脂の成形を行う方法であっ
て、前記ポリオレフィン系樹脂の成形前に、前記押出成
形機に、エチレン−不飽和カルボン酸エステル共重合体
１０ないし９９重量％と、高粘度の低密度ポリエチレン
９０ないし１重量％からなる洗浄用樹脂組成物を供給
し、加熱下に溶融押出しすることにより、成形機内のエ
チレン−不飽和カルボン酸共重合体あるいはその金属中
和物をパージすることを特徴とする押出成形機内の洗浄
方法。4. A method of molding a polyolefin resin using the same extruder after extrusion molding of an ethylene-unsaturated carboxylic acid copolymer or a metal neutralized product thereof, wherein the polyolefin resin is molded before the polyolefin resin is molded. Then, a resin composition for cleaning comprising 10 to 99% by weight of an ethylene-unsaturated carboxylic acid ester copolymer and 90 to 1% by weight of a high-viscosity low-density polyethylene is supplied to the extruder, and heated under heating. A method for cleaning the inside of an extruder, comprising purging an ethylene-unsaturated carboxylic acid copolymer or a metal neutralized product thereof in the molder by melt extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000185949A JP4753457B2 (en) | 2000-06-16 | 2000-06-16 | Cleaning resin composition and cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000185949A JP4753457B2 (en) | 2000-06-16 | 2000-06-16 | Cleaning resin composition and cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002003666A true JP2002003666A (en) | 2002-01-09 |
| JP4753457B2 JP4753457B2 (en) | 2011-08-24 |
Family
ID=18686194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000185949A Expired - Fee Related JP4753457B2 (en) | 2000-06-16 | 2000-06-16 | Cleaning resin composition and cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4753457B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002292717A (en) * | 2001-03-30 | 2002-10-09 | Du Pont Mitsui Polychem Co Ltd | Purging agent and purging method |
| CN103242970A (en) * | 2012-02-09 | 2013-08-14 | 金发科技股份有限公司 | Resin composition for cleaning and preparation method and application thereof |
| EP3315547A1 (en) | 2016-10-31 | 2018-05-02 | Solvay SA | Cleaning agent for cleaning polymer processing equipment, method for producing it and its use |
| JP2019513177A (en) * | 2016-03-31 | 2019-05-23 | フイナ・テクノロジー・インコーポレーテツドＦｉｎａ Ｔｅｃｈｎｏｌｏｇｙ， Ｉｎｃｏｒｐｏｒａｔｅｄ | Manufacturing processing aid |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001335671A (en) * | 2000-05-30 | 2001-12-04 | Du Pont Mitsui Polychem Co Ltd | Purging agent and method of purging |
-
2000
- 2000-06-16 JP JP2000185949A patent/JP4753457B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001335671A (en) * | 2000-05-30 | 2001-12-04 | Du Pont Mitsui Polychem Co Ltd | Purging agent and method of purging |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002292717A (en) * | 2001-03-30 | 2002-10-09 | Du Pont Mitsui Polychem Co Ltd | Purging agent and purging method |
| JP4703024B2 (en) * | 2001-03-30 | 2011-06-15 | 三井・デュポンポリケミカル株式会社 | Purge method |
| CN103242970A (en) * | 2012-02-09 | 2013-08-14 | 金发科技股份有限公司 | Resin composition for cleaning and preparation method and application thereof |
| JP2019513177A (en) * | 2016-03-31 | 2019-05-23 | フイナ・テクノロジー・インコーポレーテツドＦｉｎａ Ｔｅｃｈｎｏｌｏｇｙ， Ｉｎｃｏｒｐｏｒａｔｅｄ | Manufacturing processing aid |
| EP3315547A1 (en) | 2016-10-31 | 2018-05-02 | Solvay SA | Cleaning agent for cleaning polymer processing equipment, method for producing it and its use |
| US10465146B2 (en) | 2016-10-31 | 2019-11-05 | Solvay Sa | Cleaning agent for cleaning polymer processing equipment, method for producing it and its use |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4753457B2 (en) | 2011-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0182607B1 (en) | Maleic anhydride graft copolymer products having low yellowness index and preparation | |
| CN1072240C (en) | Masterbatch formulation for polyolefin applications | |
| JP2007021765A (en) | Washing resin composition for molding machine and washing method | |
| JP2002003666A (en) | Resin composition for cleaning and method of cleaning | |
| JP3568327B2 (en) | Purging agent | |
| JPH08155969A (en) | Washing agent for molding machine | |
| JP4101596B2 (en) | Excellent cleaning composition | |
| JP4703024B2 (en) | Purge method | |
| JP3179253B2 (en) | Purge agent and purge method | |
| JP6902358B2 (en) | Master Badge | |
| JP4570203B2 (en) | Purge agent and purge method | |
| JPH0542547A (en) | Detergent for molding machine | |
| WO2018079237A1 (en) | Cleaning agent and method for cleaning resin processing machine | |
| JP6153788B2 (en) | Foamed thermoplastic elastomer composition and composite molded body | |
| JP2005231108A (en) | Washing agent for molding machine | |
| JPH05320330A (en) | Internal mold release agent | |
| JP3327020B2 (en) | Continuous production method of polyolefin emulsion | |
| JP4690518B2 (en) | Cleaning resin composition | |
| JPH1016023A (en) | Purging agent | |
| JPH10672A (en) | Purging method | |
| JPH05329914A (en) | Purging agent and purging method | |
| JP2758601B2 (en) | Composition for replacement in molten resin channel | |
| JP2940665B2 (en) | Purging agent | |
| JP2015139901A (en) | Purging agent for extrusion molding machine, and purging method | |
| JPH1045963A (en) | Resin composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070509 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100126 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100202 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100331 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100921 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101217 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20110106 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20110524 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110524 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140603 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4753457 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |