JPH04131219A - Mouth piece for extruding machine - Google Patents
Mouth piece for extruding machineInfo
- Publication number
- JPH04131219A JPH04131219A JP2253464A JP25346490A JPH04131219A JP H04131219 A JPH04131219 A JP H04131219A JP 2253464 A JP2253464 A JP 2253464A JP 25346490 A JP25346490 A JP 25346490A JP H04131219 A JPH04131219 A JP H04131219A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- molten resin
- die
- mouth piece
- passage
- 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
- 229920005989 resin Polymers 0.000 claims abstract description 64
- 239000011347 resin Substances 0.000 claims abstract description 64
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 7
- 239000004088 foaming agent Substances 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 abstract description 4
- 239000002344 surface layer Substances 0.000 abstract description 2
- UYVZYWOVGQYAMI-UHFFFAOYSA-N C=C.C=C.C=C.C=C.F Chemical compound C=C.C=C.C=C.C=C.F UYVZYWOVGQYAMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000004604 Blowing Agent Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000004156 Azodicarbonamide Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 2
- 235000019399 azodicarbonamide Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PHAFDKCRJVKSSR-UHFFFAOYSA-N ethene hydrofluoride Chemical group F.C=C PHAFDKCRJVKSSR-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、熱可塑性樹脂製のフィルムやシート等を成形
する際に用いる押出機用口金に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a die for an extruder used when molding films, sheets, etc. made of thermoplastic resin.
（従来の技術）
従来、熱可塑性樹脂を材料とし、押出機を用いてフィル
ムやシート等を成形する際に、口金の開口端縁に熱可塑
性樹脂や滑剤、発泡剤その他の分解物（俗称「目脂」）
が付着し、この分解物の為に口金を出た直後の軟らかい
成形体が接触して、筋や厚みムラを発生し、又、成形体
の厚みが薄い場合はこの分解物が成形体に付着したとき
に成形体が破損することもある。特に、熱可塑性樹脂に
アゾジカルボンアミド等の熱分解型発泡剤を混合して押
出機に投入し、押出機内でかかる発泡剤を分解して発泡
性樹脂組成物とし、Ｔ型口金やサーキュラ−型口金その
他所型形状の口金より吐出して発泡体を成形する場合に
、この分解物の口金開口端縁への発生が著しいのである
。(Prior Art) Conventionally, when thermoplastic resin is used as a material to form films, sheets, etc. using an extruder, thermoplastic resin, lubricants, blowing agents, and other decomposed products (commonly known as " Eye oil”)
This decomposed product will come into contact with the soft molded product immediately after it comes out of the die, causing streaks and uneven thickness. Also, if the molded product is thin, this decomposed product will adhere to the molded product. When this happens, the molded product may be damaged. In particular, a thermoplastic resin is mixed with a thermally decomposable blowing agent such as azodicarbonamide and then fed into an extruder, and the blowing agent is decomposed in the extruder to form a foamable resin composition. When molding a foam by discharging from a die or other shaped die, this decomposition product is often generated at the edge of the mouth opening.
そこで、従来からこの分解物対策として種々研究がなさ
れており、これを大別すると、一つは樹脂にステアリン
酸等の金属塩を添加して、口金内の溶融樹脂の滑りをよ
くする方法（特開昭５８−８７４８号公報参照）であり
、今一つは、口金開口端縁にフッ素樹脂製のリップを取
りつけたり、口金開口端縁にアールを付したりする方法
（特開昭５６−９５６３７号公報参照）である。Therefore, various studies have been carried out to counter this decomposition product. Broadly speaking, one method is to add metal salts such as stearic acid to the resin to improve the slippage of the molten resin in the mouthpiece ( Another method is to attach a lip made of fluororesin to the edge of the mouthpiece opening or to round the edge of the mouthpiece opening (see Japanese Patent Laid-Open No. 56-95637). (see official bulletin).
（発明が解決しようとする課題）
しかしながら、上記従来技術の内、前者の場合は、得ら
れた成形体に於いて、経時により添加物が表面に滲出し
、後加工の段階例えば二目ｊノ・表面外球を行う場合に
要求される成形体表面の濡れ性複損な・）という問題が
あり、又後者の場合は、その効果が尚不］−分である。(Problem to be Solved by the Invention) However, in the former case of the above-mentioned conventional techniques, the additives ooze out onto the surface of the obtained molded product over time, and the additives ooze out onto the surface of the obtained molded product over time, causing There is a problem that the wettability of the surface of the molded product required when performing surface outer spherical coating is compounded, and in the latter case, the effect is still poor.
本発明者は、上記従来技術の内、特に後右の場合の問題
点を種々研究した結果、不純初発ＩＪ−７部位は、単に
口金開口端縁のみではなく、１口金内部の溶融樹脂通路
面にもあり、その溶融樹脂通路面ごの流速が遅いと発生
ｊ、、易いことを見出し、単にＤ全開１−１端縁のみ乙
１ニフッ素樹脂製のリッグを施１、（゛もその効果がイ
く１−分であることを突き市め１．木受１明を完成する
に至ったのである。As a result of various studies on the problems of the above-mentioned conventional technology, especially in the case of the rear right side, the present inventor found that the IJ-7 site where impurity first occurs is not simply the opening edge of the cap, but the molten resin passage surface inside the cap. We also found that this phenomenon is easy to occur when the flow velocity of each molten resin passage surface is slow, so we simply applied a Nifluorocarbon resin rig to only the edge of D fully open 1-1 (1). After discovering that the current was 1-minute, he was able to complete the 1. Wood Uke 1 Ming.
（課題を解決する為の手段）
本発明の１は、押出機用口金の溶融樹脂通路の表面に、
自己潤滑性を有する樹脂のコーティングが施されている
ことを特徴とする押出機用ｌＥｊ金庖その要旨Ｊ゛する
ものであり、本発明の２は、押出機用口金の溶融樹脂通
路の壁面が自己潤滑性をイｊする樹脂で形成されでいる
、ことを特徴とする押出機用１−１金をぞの要旨とする
ものである７、本発明でい・）押出機用ｌ−１金とは０
、−１′２□しへ″熱ｉｊｌ塑性樹脂を用いで、バ・イ
ブ、フィルム、−ｆＬ・−フ等を成形する場合ｉ１Ｌ用
いる′１゛ダイ１、ストレー トダイ、クロスヘツドダ
イ等を５・）。(Means for Solving the Problems) According to the first aspect of the present invention, on the surface of the molten resin passage of the extruder mouthpiece,
The gist of this metal knife for extruders is characterized in that it is coated with a resin having self-lubricating properties. The gist of the present invention is to provide a 1-1 gold for extruders, which is characterized by being made of a resin that exhibits self-lubricating properties. is 0
, -1'2□" When molding parts such as vibes, films, -fL, -F etc. using thermal plastic resin, use i1L to mold die 1, straight die, cross-head die, etc.・).
オ発明こいう溶融樹脂通路とは、押出機から押ｊ、７出
された溶融樹脂が、溶融し２だ状態’ｒ ＋”””Ｕ金
と接する而を３・）。This molten resin passage refers to the state in which the molten resin extruded from the extruder comes into contact with gold in a molten state (3).
本発明発明のｌＣムう自己潤滑性を有する樹脂Ｊシ１．
７′は、４フッ化コ３−レン樹脂、４フツ化コ］チし・
ソー６フツ化ブｌ′、′１じし・ン共重合樹脂等の°フ
ッ素樹脂１、ポリジメナルシ１コキ４Ｊン、ポリ、ノチ
ルソ、γ、τ、ルシＬ７キ号ン等のシリτｌン樹脂が挙
げられる。Resin J series having self-lubricating properties according to the present invention 1.
7' is tetrafluoroco(3-lene) resin,
Fluorocarbon resins such as fluorinated resins, polydimenarcyl, γ, τ, and silicone resins such as polydimenarcyl, γ, τ, and luci L7 are used. Can be mentioned.
本発明押出機用０金は、ポリエチレン、ポリプロピ１１
／ン等のポリオレフ・イン系樹脂、ボリエ３〜レンナレ
フタＬ／−ｔ−、ボリブＪ−レンラ用１．・フタし・−
１・等のポリニスアル系樹脂、ボリン（ルメタクリレ〜
・１・、ボリイソブｔｌ Ｔｈ“°−ルアクリ１１・・
−１・等のアクリル系樹脂・等のホ・Ｔ−ポリマー・、
二２・−ポリマー・〜、或いはこれらの樹脂の変成体、
吸いはこれらの２種以上の混合樹脂等を材料とする場合
ＣＪ採用され得るが、なかでも、熱可塑性樹脂にアゾ・
ヅカルボンアミド等の熱分解型発泡剤を混合し２こ押出
機ｆｌｕ投入し、押出機内でかかる発泡剤を分解して発
泡性樹脂組成物として押し出す場合に用い−こ好適であ
る。The zero gold for the extruder of the present invention is polyethylene, polypropylene 11
1. For polyolefin/in-based resins such as /N, Borie 3 to Lennarefta L/-t-, Boliv J-Lenra.・Lid・−
Polynisal-based resins such as 1.
・1・, Polyisobutl Th“°-Luacry11・・
Acrylic resins such as -1, T-polymers, etc.
22.-Polymer... or modified products of these resins,
CJ can be adopted when the material is a mixture of two or more of these resins, but in particular, thermoplastic resins containing azo and
It is suitable for use when a pyrolyzable blowing agent such as dicarbonamide is mixed and charged into two extruders, and the blowing agent is decomposed in the extruder and extruded as a foamable resin composition.
（作用）
本発明押出機用口金は、）容融樹脂通路の表面に自己潤
滑性を有する樹脂の５Ｊ−ティングが施されているか５
．ヌは、溶融樹脂通路の壁面が、自己潤滑性をもする樹
脂で形成されごいるのご、溶融樹脂の溶融樹脂通路面Ｃ
の流速が早くなり、樹脂が溶融樹脂通路の表面との摩挾
ぞの他の球出で停滞ｊ７、熱可塑性樹脂や滑剤、発泡剤
その他の分解物が発生し難い。(Function) In the extruder mouthpiece of the present invention, a 5J-ring made of self-lubricating resin is applied to the surface of the molten resin passage.
．． The wall surface of the molten resin passage is made of a self-lubricating resin, and the molten resin passage surface C of the molten resin is
The flow rate becomes faster, the resin stagnates due to the friction between the resin and the surface of the molten resin passage, and decomposition products such as thermoplastic resin, lubricant, foaming agent, etc. are less likely to be generated.
（実施例）
以１ぐに、本発明の実施例を図面を参照［７ながら詳細
に説明する。(Embodiments) First, embodiments of the present invention will be described in detail with reference to the drawings.
第１圀において、■はｌｔ２０ｍｍφの用軸押出機であ
り、樹脂の流れ方向Ｃ５ご向け一ζ、ダイホルダー２、
′ｒ型ダ・イ３（面長；５００ｍｍ）の順心１パ取若さ
れ、該ダイボルダ・・−２及び′丁型ダイ：３により、
ネ発明押出機用［１金４が形成されテ゛′いる。ダイホ
ルダー２の中Ｖは、断面が先細りの溶融樹脂通路５が設
げられ、′ｒ型ダイ３の中には、溶融樹脂通路５と連通
ずる溶融樹脂通路６が設けられている。In the first area, ■ is a shaft extruder with a diameter of 20 mm, one ζ facing the resin flow direction C5, a die holder 2,
``R-type die 3 (surface length: 500 mm) was removed from the center, and with the die boulder...-2 and ``T-type die 3,
For the extruder according to the invention, metal 4 is formed. A molten resin passage 5 having a tapered cross section is provided in the inside V of the die holder 2, and a molten resin passage 6 communicating with the molten resin passage 5 is provided in the 'r-shaped die 3.
しかして、溶融樹脂通路５及び６の、溶融樹脂が接４る
面（図面で微細な点で塗り表し、た部分）には、自己潤
滑性を有する樹脂の一つである４フツ化】−ｆＬ−ン樹
脂の」−・ｉ−イング′ｌが施されｒいる。ごのコーテ
ィング７は、先ず溶融樹脂通路（）及び（逼の表面に、
４４フツ化工３〜Ｉ／ン樹脂（商品名；１、−００２Ｂ
Ｘ、東京シリＪン社製）をす・布し焼成［、Ｃ，層のｌ
γさが７〜１３μ盲となるようＣごアンカーコート・を
形成し、次番、゛Ｓこのアンカーコートの表面に、４フ
ッ化エチＬ、−ン樹脂（商品名；Ｉ２４２４２Ｓ１７、
東京シリ：１ン社製）を塗布し焼成ｊ２．で、層の厚さ
が１５−・・２５ ｇｗＩ□となるよ・うに中間層を形
成し、最後すに該中間層の表面に、４７フ化エチレン樹
脂（商品名； Ｌ−４２０７ＣＦ？、東京シリコン社製
）を塗布ｊ５、焼成し７て、層の厚さが１０〜２０μと
なるように表面層を形成してなるものである。又、各層
共焼成温度は３８０°Ｃでなされている。尚、８はチョ
ークパー ９は下リップである。Therefore, the surfaces of the molten resin passages 5 and 6 that are in contact with the molten resin (the portions marked with minute dots in the drawing) are coated with 4F, which is a type of resin that has self-lubricating properties. A coating of fL-on resin is applied. The coating 7 is first applied to the surfaces of the molten resin passages () and ().
44 Futu Kako 3~I/N Resin (Product name: 1, -002B
X, manufactured by Tokyo Shiri J Co., Ltd.), cloth and firing [, C, layer l
A C anchor coat is formed so that the gamma is 7 to 13 μm, and next, on the surface of this anchor coat, tetrafluoroethylene resin (trade name: I24242S17,
Tokyo Shiri: manufactured by 1N Co., Ltd.) was applied and fired. Then, an intermediate layer was formed so that the thickness of the layer was 15-25 gwI□, and finally, 47 fluoride ethylene resin (trade name: L-4207CF?, Tokyo) was applied to the surface of the intermediate layer. (manufactured by Silicon Co., Ltd.) is coated and fired to form a surface layer having a thickness of 10 to 20 μm. Further, each layer was co-fired at a temperature of 380°C. Note that 8 is the choker and 9 is the lower lip.
ス鳳懇
図面に示した上記実施例の本発明の押出機用口金を用い
て行った実験例について次に述べる。Next, an experimental example conducted using the extruder die of the present invention shown in the drawings of the above embodiment will be described below.
■、Ｔ型ダイの設定温度
１２５°Ｃ
■、押出量
１５０ｋｇ／ｈｒ
■、樹脂配合
低密度ポリエチレン（？ｌＩ ；４）
−・ １００重量部
アゾジカルボンアミドー−−−−・−１６重量部ワツク
スー−一−−−−−−−−−−−−・−−−−−−−−
−−−１重量部上記の条件で５時間連続して押出機を駆
動し、溶融樹脂を押し出した後、金型を冷却し、リップ
９に付着した僅かの目脂を剥ぎ取りその重量を測定しよ
うとしたが、その量が僅少の為、サンプリングが出来な
かった。■, Set temperature of T-type die: 125°C ■, Extrusion rate: 150 kg/hr ■, Resin-blended low-density polyethylene (?lI ; 4) - 100 parts by weight Azodicarbonamide - 16 parts by weight Watukusu −1−−−−−−−−−−−−・−−−−−−−−
---1 part by weight After driving the extruder continuously for 5 hours under the above conditions and extruding the molten resin, the mold was cooled, and a small amount of eye oil adhering to the lip 9 was peeled off and its weight was measured. However, the amount was so small that sampling was not possible.
ル較■
押出機用口金４の溶融樹脂通路５及び６の、溶融樹脂が
接する面に施した４フツ化エチレン樹脂の代わりに、通
常のハードクロームめっきを施した口金を用いた以外は
、実験例と同様にして目脂のサンプリングを行った結果
、２．８７ｇであった。■Experiment except that instead of the tetrafluoroethylene resin applied to the surfaces of the molten resin passages 5 and 6 of the extruder nozzle 4 in contact with the molten resin, a nozzle plated with ordinary hard chrome was used. The eye oil was sampled in the same manner as in the example, and the result was 2.87 g.
（発明の効果）
本発明は、溶融樹脂通路の表面に自己潤滑性を有する樹
脂のコーティングが施されているか、又は、溶融樹脂通
路の壁面が、自己潤滑性を有する樹脂で形成されている
ので、溶融樹脂は円滑に流れ、該樹脂や滑剤、発泡剤そ
の他の分解物が発生し難（、従ってこの分解物の為に、
口金を出た直後の軟らかい成形体が接触して筋や厚みム
ラを発生したり、成形体の厚みが薄い場合にこの分解物
が成形体に付着して、破損する等の問題がなく、特に、
熱分解型発泡剤を用いての発泡体成形の場合にはこの効
果は著しいものがある。(Effects of the Invention) The present invention is characterized in that the surface of the molten resin passage is coated with a resin that has self-lubricating properties, or the wall surface of the molten resin passage is formed of a resin that has self-lubricating properties. , the molten resin flows smoothly, and it is difficult for the resin, lubricant, foaming agent, and other decomposed products to be generated (therefore, due to these decomposed products,
There are no problems such as streaks or uneven thickness due to contact between the soft molded product immediately after it comes out of the die, or problems such as decomposition products adhering to the molded product when the molded product is thin and causing damage. ,
This effect is remarkable in the case of foam molding using a pyrolytic foaming agent.
第１図は、本発明の１の押出機用口金の一実施例を示す
一部切欠断面図である。
１・・押出機、２・・ダイホルダー ３・・Ｔ型ダイ、
４・・本発明押出機用口金、５・・溶融樹脂通路５．６
・・溶融樹脂通路、７・・自己潤滑性を有する樹脂のコ
ーティング、８・・チョークバー、９・・下リップ。
第１図FIG. 1 is a partially cutaway sectional view showing one embodiment of an extruder mouthpiece according to the present invention. 1. Extruder, 2. Die holder 3. T-shaped die,
4. Mouthpiece for the extruder of the present invention, 5. Molten resin passage 5.6
... Molten resin passage, 7. Self-lubricating resin coating, 8. Choke bar, 9. Lower lip. Figure 1
Claims (1)
を有する樹脂のコーティングが施されていることを特徴
とする押出機用口金。 ２、押出機用口金の溶融樹脂通路の壁面が、自己潤滑性
を有する樹脂で形成されていることを特徴とする押出機
用口金。[Scope of Claims] 1. An extruder mouthpiece, characterized in that the surface of the molten resin passageway of the extruder mouthpiece is coated with a self-lubricating resin. 2. An extruder mouthpiece, characterized in that the wall surface of the molten resin passageway of the extruder mouthpiece is made of a self-lubricating resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2253464A JPH04131219A (en) | 1990-09-21 | 1990-09-21 | Mouth piece for extruding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2253464A JPH04131219A (en) | 1990-09-21 | 1990-09-21 | Mouth piece for extruding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04131219A true JPH04131219A (en) | 1992-05-01 |
Family
ID=17251752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2253464A Pending JPH04131219A (en) | 1990-09-21 | 1990-09-21 | Mouth piece for extruding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04131219A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0575021A3 (en) * | 1992-06-16 | 1994-04-27 | Colgate Palmolive Co | |
| JP2007145016A (en) * | 2005-11-02 | 2007-06-14 | Asahi Kasei Chemicals Corp | Film made of polyphenylene ether resin and its production method |
| JP2007223073A (en) * | 2006-02-21 | 2007-09-06 | Sekisui Chem Co Ltd | Extrusion mold and long article manufacturing method using the same |
| JP2017080949A (en) * | 2015-10-26 | 2017-05-18 | キヤノン株式会社 | Annular die and method for manufacturing tube-like object |
| JP2019030980A (en) * | 2017-08-05 | 2019-02-28 | 株式会社フロロテクノロジー | Resin gum preventive, and resin gum prevention method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117256A (en) * | 1974-08-01 | 1976-02-12 | Sumitomo Chemical Co | |
| JPS5250358A (en) * | 1975-10-21 | 1977-04-22 | Toshiba Machine Co Ltd | Synthetic resin molding machine |
| JPS5695637A (en) * | 1979-12-29 | 1981-08-03 | Matsushita Electric Works Ltd | Structure of die for extrusion molding |
| JPS5739719B2 (en) * | 1975-04-21 | 1982-08-23 | ||
| JPS623924A (en) * | 1985-06-28 | 1987-01-09 | Sekisui Plastics Co Ltd | Manufacture of thermoplastic resin foam |
-
1990
- 1990-09-21 JP JP2253464A patent/JPH04131219A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117256A (en) * | 1974-08-01 | 1976-02-12 | Sumitomo Chemical Co | |
| JPS5739719B2 (en) * | 1975-04-21 | 1982-08-23 | ||
| JPS5250358A (en) * | 1975-10-21 | 1977-04-22 | Toshiba Machine Co Ltd | Synthetic resin molding machine |
| JPS5695637A (en) * | 1979-12-29 | 1981-08-03 | Matsushita Electric Works Ltd | Structure of die for extrusion molding |
| JPS623924A (en) * | 1985-06-28 | 1987-01-09 | Sekisui Plastics Co Ltd | Manufacture of thermoplastic resin foam |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0575021A3 (en) * | 1992-06-16 | 1994-04-27 | Colgate Palmolive Co | |
| US5431927A (en) * | 1992-06-16 | 1995-07-11 | Colgate-Palmolive Company | Pet food product having oral care properties |
| JP2007145016A (en) * | 2005-11-02 | 2007-06-14 | Asahi Kasei Chemicals Corp | Film made of polyphenylene ether resin and its production method |
| JP2007223073A (en) * | 2006-02-21 | 2007-09-06 | Sekisui Chem Co Ltd | Extrusion mold and long article manufacturing method using the same |
| JP2017080949A (en) * | 2015-10-26 | 2017-05-18 | キヤノン株式会社 | Annular die and method for manufacturing tube-like object |
| JP2019030980A (en) * | 2017-08-05 | 2019-02-28 | 株式会社フロロテクノロジー | Resin gum preventive, and resin gum prevention method |
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