JPH0613183B2 - Resin purging method - Google Patents
Resin purging methodInfo
- Publication number
- JPH0613183B2 JPH0613183B2 JP61016796A JP1679686A JPH0613183B2 JP H0613183 B2 JPH0613183 B2 JP H0613183B2 JP 61016796 A JP61016796 A JP 61016796A JP 1679686 A JP1679686 A JP 1679686A JP H0613183 B2 JPH0613183 B2 JP H0613183B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- purging
- flat plate
- temperature
- molding
- 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.)
- Expired - Lifetime
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1753—Cleaning or purging, e.g. of the injection unit
-
- 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
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は熱可塑性樹脂を効率良く押出機よりパージする
方法に関する。The present invention relates to a method for efficiently purging a thermoplastic resin from an extruder.
（従来の技術） 従来、射出成形、押出成形等の成形加工において材料替
え、色替えまたは成形材料が加熱シリンダー内で分解し
た時、シリンダー内に残留している樹脂を押出し、置換
する場合、置換しようとする樹脂より高粘度の樹脂また
は専用の軟質塩化ビニル樹脂等のパージ材を多量に押出
していた。(Prior art) Conventionally, in the case of molding, such as injection molding and extrusion molding, when material is changed, color is changed, or when the molding material is decomposed in the heating cylinder, the resin remaining in the cylinder is extruded and replaced. A large amount of a purge material such as a resin having a higher viscosity than the resin to be used or a dedicated soft vinyl chloride resin has been extruded.
例へばポリスチレン、ポリエチレン、ポリプロピレン等
の汎用樹脂においては、樹脂が安価であるため、これ等
樹脂を多量に押出し色替え、樹脂替えを行なっていた。For example, in general-purpose resins such as polystyrene, polyethylene, and polypropylene, since the resins are inexpensive, a large amount of these resins have been extruded to change colors and change resins.
またポリカーボネート、ポリアリレート、ポリサルホ
ン、ポリエーテルサルホン、ポリエーテルイミド、ポリ
エーテルエーテルケトンといったエンジニアリングプラ
スチックにおいては成形温度、成形時の樹脂粘度が汎用
樹脂に比べ高いため適切なパージ剤がない。このためポ
リカーボネート樹脂を押出した後、次に成形する樹脂を
押出すことによりパージを行なっていた。Further, in engineering plastics such as polycarbonate, polyarylate, polysulfone, polyethersulfone, polyetherimide and polyetheretherketone, the molding temperature and the resin viscosity at the time of molding are higher than general-purpose resins, so that there is no suitable purge agent. Therefore, after extruding the polycarbonate resin, the resin to be molded next is extruded to perform the purging.
（発明が解決しようとする問題点） しかしこれ等従来のパージ方法ではシリンダー内のスク
リュー、プランジャーに付着している樹脂の置換が不十
分であり、多量に押出しても樹脂替え、色替えが十分で
なく、次に成形する樹脂中にシリンダー内に付着した古
い樹脂が混入し、得られる成形品の外観を損っていた。
またこれ等の方法では、パージに長時間を要するという
問題があるばかりか、パージ用の樹脂が多量に必要とな
り、そのため、特にエンジニアリングプラスチックで
は、もともと高価であることと相まってその損失は多大
となるという問題があった。(Problems to be solved by the invention) However, with these conventional purging methods, the resin adhering to the screw and the plunger in the cylinder is insufficiently replaced. Not enough, and old resin adhering to the inside of the cylinder was mixed into the resin to be molded next, impairing the appearance of the resulting molded product.
Further, these methods not only have a problem of requiring a long time for purging, but also require a large amount of resin for purging. Therefore, especially in engineering plastics, the loss is enormous in combination with the originally high cost. There was a problem.
本発明は、これ等の問題がなく、短時間で効率よく効果
的に樹脂を押出機よりパージする方法に関するものであ
る。The present invention relates to a method of purging resin from an extruder efficiently and effectively in a short time without these problems.
（問題を解決するための手段） 本発明者らは短時間で効率よく効果的に成形機から樹脂
をパージする方法につき種々検討した結果、芳香族ポリ
エステル樹脂に結晶水を含む化合物を混合して用いるパ
ージ方が最適であることを見出し、本発生を完成した。(Means for Solving the Problem) As a result of various studies on the method of purging resin from a molding machine efficiently and effectively in a short time, the present inventors have found that an aromatic polyester resin is mixed with a compound containing water of crystallization. We found that the purging method used was the most suitable and completed this generation.
すなわち、本発明は熱可塑性樹脂を成形機からパージす
るに際し芳香族ポリエステル樹脂と結晶水を含む化合物
との混合物を該ポリエステル樹脂に引続き押出すことを
特徴とする樹脂をパージ方法である。That is, the present invention is a resin purging method characterized in that when a thermoplastic resin is purged from a molding machine, a mixture of an aromatic polyester resin and a compound containing water of crystallization is continuously extruded into the polyester resin.
本発明で用いられる芳香族ポリエステル樹脂ととして
は、テレフタル酸、イソフタル酸等と２価のジオールよ
りなるポリエステルであり、特に一般式 （式中Ｒ１〜Ｒ８はそれぞれ独立に水素原子、ハロゲン
原子または炭素数１〜１０の炭化水素基であり、Ｘは炭
素−炭素直接結合、炭素数１〜２０の２価の炭化水素
基、−Ｏ−、−Ｓ−、−ＳＯ−、−ＣＯ−または−ＳＯ
２−を示し、２種以上を同時に含んでもよい。ｎは重合
度を示す。） で表わされるものが最適である。なお押出される樹脂に
より異なるがその対数粘度が０．２〜２．０の範囲にあ
る樹脂が好ましい。市販品として例えばポリアリレート
樹脂、商品名『Ｕポリマー Ｕ−１００』が特に良い。The aromatic polyester resin used in the present invention is a polyester composed of terephthalic acid, isophthalic acid and the like and a divalent diol, and has a general formula (In formula, R < 1 > -R < 8 > is a hydrogen atom, a halogen atom, or a C1-C10 hydrocarbon group each independently, X is a carbon-carbon direct bond, a C1-C20 bivalent hydrocarbon group. , -O-, -S-, -SO-, -CO- or -SO
2- is shown, and two or more kinds may be contained at the same time. n indicates the degree of polymerization. ) Is most suitable. A resin having a logarithmic viscosity in the range of 0.2 to 2.0 is preferable although it depends on the resin to be extruded. As a commercially available product, for example, a polyarylate resin and a trade name "U polymer U-100" are particularly preferable.
本発明における結晶水を含む化合物とは、結晶中に一定
の化合比で含まれている水を有する化合物である。結晶
水を含む化合物としては、Ｈ２Ｏ分子として塩類のイオ
ンに配位しているもの、配位しないで結晶格子の空所を
満たすために一定の割合で存在しているもの、オキソニ
ウムイオンとして含まれていると考えられるもの、ＯＨ
基として含まれていて加熱するとＨ２Ｏとして脱水され
るもの等に分類されるが、本発明ではいずれも使用でき
る。結晶水を含む化合物としては、塩化カルシゥム、硫
酸マグネシゥム、硫酸マンガン、塩化マンガン、硫酸亜
鉛、硝酸アムミニゥム、硫酸ソーダ、塩化パリゥム、石
こう、酸化アルミニゥム、水酸化アルミニゥム、水酸化
マグネシゥム、炭酸ナトリゥム、炭酸マグネシゥム等が
挙げられるが、本発明においては石こう、水酸化アルミ
ニゥム、水酸化マグネシゥムが特に好ましく使用され
る。The compound containing water of crystallization in the present invention is a compound having water contained in the crystal at a constant compounding ratio. As the compound containing water of crystallization, those which are coordinated with salt ions as H 2 O molecules, those which are not coordinated and which are present at a constant ratio to fill the voids of the crystal lattice, and oxonium ions What is considered to be included as OH
Although it is classified into those contained as a group and dehydrated as H 2 O when heated, any of them can be used in the present invention. Compounds containing water of crystallization include calcium chloride, magnesium sulfate, manganese sulfate, manganese chloride, zinc sulfate, amminium nitrate, sodium sulfate, parium chloride, gypsum, aluminum oxide, aluminum hydroxide, magnesium hydroxide, sodium carbonate, magnesium carbonate. Among them, gypsum, aluminum hydroxide, magnesium hydroxide are particularly preferably used in the present invention.
本発明における結晶水を含む化合物の混合割合は芳香族
ポリエステル樹脂１００重量部に対し０．３〜１０重量
部である。０．３重量部より少ない場合にはパージ効果
が十分ではなく、また１０重量部より多い場合にはスク
リューへの喰い込みが悪くなりパージ効果はなくなる。The mixing ratio of the compound containing water of crystallization in the present invention is 0.3 to 10 parts by weight with respect to 100 parts by weight of the aromatic polyester resin. If it is less than 0.3 parts by weight, the purging effect is not sufficient, and if it is more than 10 parts by weight, the biting into the screw is poor and the purging effect is lost.
芳香族ポリエステル樹脂への結晶水を含む化合物の混合
は、該ポリエステル樹脂のペレットと所定量の結晶水を
含む化合物をヘンシェルミキサー、リボンブレンダー等
の混合機により行なうことができる。The compound containing water of crystallization can be mixed with the aromatic polyester resin by using a mixer such as a Henschel mixer or a ribbon blender to mix the pellet of the polyester resin and the compound containing a predetermined amount of water of crystallization.
尚、水分を含まない芳香族ポリエステル樹脂でまずパー
ジし、次いで本発明の方法を実施しても良く、さらに良
好な効果が得られる。It should be noted that the aromatic polyester resin containing no water may be first purged, and then the method of the present invention may be carried out, and a further excellent effect can be obtained.
以上の樹脂のパージ方法は押出成形機、射出成形機等の
公知の成形機に適用し得る。The above resin purging method can be applied to known molding machines such as an extrusion molding machine and an injection molding machine.
（実施例） 以下、実施例により本発明を説明する。(Examples) Hereinafter, the present invention will be described with reference to Examples.
実施例１ 型締力３５トン、スクリュー径１８ｍｍ、最大射出容量
２４ｃｍ３のインラインスクリュー式射出成形機にて、
３０重量％炭素繊維充電ポリエーテルサルフォン樹脂
（ＣＦ入ＰＥＳと略）を用いて１００×７５×２（ｍ
ｍ）の平板を、シリンダー温度３８０℃、金型温度１７
０℃、射出圧力１４００ｋ填ｇ／ｃｍ２の条件で成形し
た。Example 1 With an in-line screw type injection molding machine having a mold clamping force of 35 tons, a screw diameter of 18 mm, and a maximum injection capacity of 24 cm 3 .
30% by weight carbon fiber charged polyether sulfone resin (abbreviated as PES with CF) 100 × 75 × 2 (m
m) flat plate, cylinder temperature 380 ℃, mold temperature 17
Molding was carried out under the conditions of 0 ° C. and injection pressure of 1400 k g / cm 2 .
成形終了後、十分に乾燥した（水分量０．０１％）ユニ
チカ社製ポリアリレート、商品明『Ｕ−１００』（対数
粘度０．６７）、２９０ｇによりシリンダー温度３６０
℃の条件で、パージを行った。After the completion of molding, fully dried (water content 0.01%) unitary polyarylate, product "U-100" (logarithmic viscosity 0.67), cylinder temperature 360 according to 290 g.
Purging was performed under the condition of ° C.
更にシリンダー温度を３３０℃に設定し、乾燥した『Ｕ
−１００』１００重量部と水酸化アルミニゥム５重量部
の混合物１５０ｇを使用し３６０℃より３３０℃の温度
領域でパージを行った。次いでシリンダー温度を２８０
℃に設定し、３３０℃より２８０℃の温度領域で帝人化
成(株)社製ポリカーボネート、商品名『パンライトＬ−
１２５０』２９０ｇをシリンダーより押出した。シリン
ダー温度が２８０℃となった後、金型温度１００℃、射
出圧力１４００ｋｇ／ｃｍ２の条件にて『パンライトＬ
−１２５０』を成形し平板をえた。得られた平板は透明
であり、異物は見られず、ＣＦ入れＰＥＳは良好にパー
ジされていた。Cylinder temperature was set to 330 ° C and dried "U
A mixture of 100 parts by weight of "-100" and 5 parts by weight of aluminum hydroxide (150 g) was used and purging was performed in a temperature range of 360 ° C to 330 ° C. Then set the cylinder temperature to 280
℃, the temperature range from 330 ℃ to 280 ℃, Teijin Kasei Co., Ltd. Polycarbonate, trade name "Panlite L-
290 g of 1250 ″ was extruded from the cylinder. After the cylinder temperature reached 280 ℃, under the conditions of mold temperature 100 ℃ and injection pressure 1400kg / cm 2 , "Panlite L
-1250 "was molded to obtain a flat plate. The obtained flat plate was transparent, no foreign matter was observed, and CF-inserted PES was well purged.
比較例−１ 実施例−１と同様にしてＣＦ入りＰＥＳを成形した後シ
リンダー温度を２８０℃に設定し、３６０℃より２８０
℃の温度領域でポリカーボネート樹脂『パンライトＬ−
１２５０』５００ｇを押出した。お シリンダー温度が２８０℃となった後、実施例−１と同
様の条件で成形した平板を得た。得られた平板には黒色
のスジ、異物の混入が見られた。Comparative Example-1 After molding a CF-containing PES in the same manner as in Example-1, the cylinder temperature was set to 280 ° C, and 280 was obtained from 360 ° C.
Polycarbonate resin "Panlite L- in the temperature range of ℃
1250 '' 500 g was extruded. After the cylinder temperature reached 280 ° C., a flat plate molded under the same conditions as in Example-1 was obtained. Black streaks and inclusion of foreign matter were found on the obtained flat plate.
更に５００ｇの『パンライトＬ−１２５０』を押出した
後、平板を成形したが、得られた平板には黒色のスジ、
異物の混入が依然として見られた。After further extruding 500 g of "Panlite L-1250", a flat plate was formed. The obtained flat plate had a black stripe,
Contamination of foreign matter was still seen.
比較例−２ 実施例−１と同様にしてＣＦ入りＰＥＳを成形した後シ
リンダー温度を２８０℃に設定し、３６０℃より２８０
℃の温度領域で三井石油化学(株)製ポリエチレン樹脂、
商品明『ハイゼックス５０００Ｈ』１０００ｇを押出
し、更に５００ｇの『パンライトＬ−１２５０』を押出
した後、実施例−１と同様の条件にて平板を成形した
が、得られた平板には黒色の異物の混入が見られた。Comparative Example-2 After molding the CF-containing PES in the same manner as in Example-1, the cylinder temperature was set to 280 ° C, and 280 from 360 ° C.
Polyethylene resin manufactured by Mitsui Petrochemical Co., Ltd. in the temperature range of ℃
After extruding 1000 g of the product "Hi-Zex 5000H" and further extruding 500 g of "Panlite L-1250", a flat plate was molded under the same conditions as in Example-1. Was found to be mixed.
比較例−３ 実施例−１と同様にしてＣＦ入りＰＥＳを成形した。Comparative Example-3 A CF-containing PES was molded in the same manner as in Example-1.
成形終了後、十分に乾燥した（水分量０．０１％）ユニ
チカ社製ポリアリレート、商品名『Ｕ−１００』（対数
粘度０．６７）、２９０ｇによりシリンダー温度３６０
℃の条件で、パージを行った。After the completion of molding, fully dried (water content 0.01%) Unitika polyarylate, trade name "U-100" (logarithmic viscosity 0.67), cylinder temperature 360
Purging was performed under the condition of ° C.
更にシリンダー温度を３３０℃に設定し３６０℃より３
３０℃の温度領域で、『Ｕ−１００』１００重量部と水
酸化アルミニゥム０．１重量部の混合物１５０ｇにより
パージを行なった。Furthermore, set the cylinder temperature to 330 ° C and set it to 3 ° C from 360 ° C.
In a temperature range of 30 ° C., purging was performed with 150 g of a mixture of 100 parts by weight of “U-100” and 0.1 part by weight of aluminum hydroxide.
更にシリンダー温度を２８０℃に設定し、３３０℃によ
り２８０℃の温度領域で帝人化成(株)社製ポリカーボネ
ート、商品明『パンライトＬ−１２５０』２９０ｇを押
出した。Further, the cylinder temperature was set to 280 ° C., and 290 g of polycarbonate manufactured by Teijin Chemicals Co., Ltd., “Mei Ming“ Panlite L-1250 ”, was extruded at a temperature range of 280 ° C. at 330 ° C.
シリンダー温度が２８０℃となった後、金型温度１００
℃、射出圧力１４００ｋｇ／ｃｍ２の条件で『パンライ
トＬ−１２５０』を成形し平板を得た。得られた平板中
には異物が多数見られ、パージ効果はなかった。After the cylinder temperature reaches 280 ℃, mold temperature 100
"Panlite L-1250" was molded under the conditions of ° C and an injection pressure of 1400 kg / cm 2 to obtain a flat plate. Many foreign matters were found in the obtained flat plate and there was no purging effect.
比較例−４ 実施例−１と同様にしてＣＦ入りＰＥＳを成形した。Comparative Example-4 A CF-containing PES was molded in the same manner as in Example-1.
成形終了後、十分に乾燥した（水分量０．０１％）ユニ
チカ社製ポリアリレート、商品名『Ｕ−１００』（対数
粘度０．６７）、２９０ｇによりシリンダー温度３６０
℃の条件で、パージを行った。After the completion of molding, fully dried (water content 0.01%) unitary polyarylate, trade name "U-100" (logarithmic viscosity 0.67), 290 g, cylinder temperature 360
Purging was performed under the condition of ° C.
更にシリンダー温度を３３０℃に設定し、３６０℃より
３３０℃の温度領域で『Ｕ−１００』１００重量部と水
酸化アルミリニゥム２０重量部の混合物を用いてパージ
を行なったが、スクリューへの喰い込みが悪く、パージ
は出来なかった。Furthermore, the cylinder temperature was set to 330 ° C., and purging was performed using a mixture of 100 parts by weight of “U-100” and 20 parts by weight of aluminum hydroxide in a temperature range of 360 ° C. to 330 ° C. It was so bad that I couldn't purge.
実施例−２ 型締力７５トン、スクリュー径３２ｍｍ、最大射出容量
８８ｃｍ３のインラインスクリュー式射出成形機にて、
２０重量％炭素繊維充填ポリエーテルエーテルケトン樹
脂（ＣＦ入ＰＥＥＫと略）を用いて、１００×７５×２
（ｍｍ）の平板を、シリンダー度４２０℃、金型温度２
００℃、射出圧力１４００ｋｇ／ｃｍ２の条件で成形し
た。Example-2 With an in-line screw type injection molding machine having a mold clamping force of 75 tons, a screw diameter of 32 mm, and a maximum injection capacity of 88 cm 3 .
100 × 75 × 2 using 20 wt% carbon fiber filled polyetheretherketone resin (abbreviated as PEEK with CF)
(Mm) flat plate, cylinder degree 420 ℃, mold temperature 2
Molding was performed under the conditions of 00 ° C. and injection pressure of 1400 kg / cm 2 .
成形終了後、シリンダー温度を３６０℃に設定し、４２
０℃より３６０℃の温度領域で、十分に乾燥したユニチ
カ社製ポリアリレート、商品名明『Ｕ−１００』、１０
００ｇを押出した。After molding, set the cylinder temperature to 360 ℃ and
In the temperature range of 0 ° C to 360 ° C, fully dried polyarylate manufactured by Unitika Ltd., trade name "U-100", 10
00 g was extruded.
更にシリンダー温度を３３０℃に設定し、３６０℃より
３３０℃の温度領域で『Ｕ−１００』１００重量部と水
酸化アルミニゥム５重量部の混合物５００ｇによりパー
ジを行なった。Further, the cylinder temperature was set at 330 ° C., and purging was carried out in a temperature range from 360 ° C. to 330 ° C. with 500 g of a mixture of 100 parts by weight of “U-100” and 5 parts by weight of aluminum hydroxide.
次いでシリンダー温度を２８０℃に設定し、３３０℃よ
り２８０℃の温度領域で５００ｇの『パンライトＬ−１
２５０』を押出した。Next, the cylinder temperature was set to 280 ° C, and 500 g of "Panlite L-1" was used in the temperature range of 330 ° C to 280 ° C.
250 ″ was extruded.
シリンダー温度が２８０℃となった後、金型温度１００
℃、射出圧力１４００ｋｇ／ｃｍ２の条件で『パンライ
トＬ−１２５０』を成形し平板を成形した。After the cylinder temperature reaches 280 ℃, mold temperature 100
"Panlite L-1250" was molded under the conditions of ℃ and injection pressure of 1400 kg / cm 2 to form a flat plate.
得られた平板は透明であり、異物は見られず、ＣＦ入れ
ＰＥＥＫは良好にパージされていた。The obtained flat plate was transparent, no foreign matter was observed, and CF-inserted PEEK was well purged.
比較例−５ 実施例−２と同様にしてＣＦ入りＰＥＥＫを成形した後
シリンダー温度を２８０℃に設定し、４２０℃より２８
０℃の温度領域でポリカーボネート樹脂『パンライトＬ
−１２５０』２０００ｇを押出した。Comparative Example-5 After molding PEEK with CF in the same manner as in Example-2, the cylinder temperature was set to 280 ° C, and from 420 ° C to 28 ° C.
Polycarbonate resin "Panlite L in the temperature range of 0 ° C
-1250 '' 2000 g was extruded.
シリンダー温度が２８０℃となった後、実施例−２と同
様の条件で成形し平板を得た。After the cylinder temperature reached 280 ° C., a flat plate was obtained by molding under the same conditions as in Example-2.
得られた平板には黒色のスジ、異物の混入が見られた。Black streaks and inclusion of foreign matter were found on the obtained flat plate.
更に１０００ｇの『パンライトＬ−１２５０』を押出し
た後、平板の成形したが、得られた平板には黒色のス
ジ、異物の混入は消えなかった。After further extruding 1000 g of "Panlite L-1250", a flat plate was formed, but black streaks and inclusion of foreign matter remained in the obtained flat plate.
実施例−３ 実施例−１においてＣＦ入りＰＥＳにかえてエンジニア
リングプラスチック株式会社製ガラス繊維入りポリエー
テルイミド樹脂、商品名『ウルテム２２００』を実施例
１と同様にして、１００×７５×２（ｍｍ）の平板をシ
リンダー温度３９０℃、金型温度１７０℃、射出圧力１
４００ｋｇ／ｃｍ２の条件で成形した。Example-3 A glass fiber-containing polyetherimide resin manufactured by Engineering Plastics Co., Ltd. under the product name "Ultem 2200" in place of the CF-containing PES in Example-1 was used in the same manner as in Example 1 to obtain 100 × 75 × 2 (mm ) Cylinder temperature 390 ℃, mold temperature 170 ℃, injection pressure 1
It was molded under the condition of 400 kg / cm 2 .
成形終了後、十分に乾燥した（水分量０．０１％）ユニ
チカ社製ポリアリレート、商品名『Ｕ−１００』（対数
粘度０．６７）、２９０ｇによりシリンダー温度を３６
０℃に設定し、４２０℃より３６０℃の温度領域でパー
ジを行った。After the molding was completed, the cylinder temperature was set to 36 by fully drying (water content 0.01%) Polyarylate manufactured by Unitika Ltd., trade name "U-100" (logarithmic viscosity 0.67), and 290 g.
The temperature was set to 0 ° C., and purging was performed in the temperature range of 420 ° C. to 360 ° C.
更にシリンダー温度を３３０℃に設定し、３６０℃より
３３０℃の温度領域で実施例１にて使用した乾燥した
『Ｕ−１００』１００重量部と水酸化アルミニゥム５重
量部の混合物１５０ｇによりパージを行なった。Further, the cylinder temperature was set at 330 ° C., and purging was performed in a temperature range of 360 ° C. to 330 ° C. with 150 g of a mixture of 100 parts by weight of the dried “U-100” used in Example 1 and 5 parts by weight of aluminum hydroxide. It was
次いでシリンダー温度を２８０℃に設定し、３６０℃よ
り３３０℃の温度領域で帝人化成社製ポリカーボネー
ト、商品名『パンライトＬ−１２５０』２９０ｇをシリ
ンダーより押出した。Then, the cylinder temperature was set to 280 ° C., and 290 g of polycarbonate manufactured by Teijin Chemicals under the trade name “Panlite L-1250” was extruded from the cylinder in a temperature range of 360 ° C. to 330 ° C.
シリンダー温度が２８０℃となった後、金型温度１００
℃、射出圧力１４００ｋｇ／ｃｍ２の条件で『パンライ
トＬ−１２５０』を成形し平板を得た。After the cylinder temperature reaches 280 ℃, mold temperature 100
"Panlite L-1250" was molded under the conditions of ° C and an injection pressure of 1400 kg / cm 2 to obtain a flat plate.
得られた平板は透明であり、異物は見られず、ガラス繊
維入りポリエーテルイミド樹脂は良好にパージされてい
た。The obtained flat plate was transparent, no foreign matter was observed, and the glass fiber-containing polyetherimide resin was well purged.
実施例４ 実施例１と同様にしてＣＦ入りＰＥＳを成形した。Example 4 A CF-containing PES was molded in the same manner as in Example 1.
成形終了後、十分に乾燥した（水分量０．０１％）ユニ
チカ社製ポリアリレート、商品名『Ｕ−１００』（対数
粘度０．６７）、２９０ｇによりシリンダー温度３６０
℃の条件で、パージを行った。After the completion of molding, fully dried (water content 0.01%) unitary polyarylate, trade name "U-100" (logarithmic viscosity 0.67), 290 g, cylinder temperature 360
Purging was performed under the condition of ° C.
更にシリンダー温度を３３０℃を設定し、乾燥した『Ｕ
−１００』１００重量部と石こう５重量部の混合物１５
０ｇを使用し３６０℃より３３０℃の温度領域でパージ
を行った。Further, set the cylinder temperature to 330 ° C and dry the “U
-100 "Mixture of 100 parts by weight and 5 parts by weight of gypsum 15
Purging was performed in the temperature range of 360 ° C to 330 ° C using 0 g.
次いでシリンダー温度を２８０℃に設定し、３３０℃よ
り２８０℃の温度領域で帝人化成社製ポリカーボネー
ト、商品名『パンライトＬ−１２５０』２９０ｇをシリ
ンダーより押出した。Then, the cylinder temperature was set to 280 ° C., and 290 g of polycarbonate manufactured by Teijin Chemicals under the trade name “Panlite L-1250” was extruded from the cylinder in a temperature range of 330 ° C. to 280 ° C.
シリンダー温度が２８０℃となった後、金型温度１００
℃、射出圧力１４００ｋｇ／ｃｍ２の条件にて『パンラ
イトＬ−１２５０』を成形し平板をえた。得られた平板
は透明であり、異物は見られず、ＣＦ入りＰＥＳは良好
にパージされていた。After the cylinder temperature reaches 280 ℃, mold temperature 100
"Panlite L-1250" was molded under the conditions of ° C and an injection pressure of 1400 kg / cm 2 to obtain a flat plate. The obtained flat plate was transparent, no foreign matter was observed, and CF-containing PES was well purged.
（発明の効果） 本発明の樹脂のパージ方法は従来の方法に比し、格段の
パージ効果を有している。(Effect of the Invention) The resin purging method of the present invention has a marked purging effect as compared with the conventional method.
Claims (2)
し該熱可塑性樹脂より高溶融粘度を有する芳香族ポリエ
ステル樹脂に結晶水を含む化合物を混合して押出すこと
を特徴とする樹脂のパージ方法1. A method of purging a resin, characterized in that, when purging a thermoplastic resin from an extruder, a compound containing water of crystallization is mixed with an aromatic polyester resin having a higher melt viscosity than the thermoplastic resin and extruded.
エステル樹脂１００重量部に対し０．３〜１０重量部で
あることを特徴とする特許請求の範囲第１項記載の樹脂
のパージ方法。2. The method for purging a resin according to claim 1, wherein the amount of the compound containing water of crystallization added is 0.3 to 10 parts by weight with respect to 100 parts by weight of the aromatic polyester resin. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61016796A JPH0613183B2 (en) | 1986-01-30 | 1986-01-30 | Resin purging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61016796A JPH0613183B2 (en) | 1986-01-30 | 1986-01-30 | Resin purging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62176817A JPS62176817A (en) | 1987-08-03 |
| JPH0613183B2 true JPH0613183B2 (en) | 1994-02-23 |
Family
ID=11926124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61016796A Expired - Lifetime JPH0613183B2 (en) | 1986-01-30 | 1986-01-30 | Resin purging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613183B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976788A (en) * | 1988-06-03 | 1990-12-11 | Kimberly-Clark Corporation | Method of cleaning melt-processing equipment with a thermoplastic polyolefin and a bifunctional siloxane |
| JP2613794B2 (en) * | 1988-08-26 | 1997-05-28 | 三菱化学株式会社 | Purging agent for molding machines |
| US5424012A (en) * | 1994-01-11 | 1995-06-13 | Cylatec Corp. | Method for purging thermoplastic extruders |
| DE19748382A1 (en) * | 1997-10-31 | 1999-05-06 | Hoechst Ag | Flame-resistant thermoplastic molding compounds containing aluminum hydroxide |
| JP3671002B2 (en) | 2001-12-28 | 2005-07-13 | オリンパス株式会社 | Endoscope sheath |
| US8080506B2 (en) * | 2009-07-14 | 2011-12-20 | MSI Technology LLC. | Reactive purge compound for polymer purging |
-
1986
- 1986-01-30 JP JP61016796A patent/JPH0613183B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62176817A (en) | 1987-08-03 |
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