JPS5991037A - Method and die for blow molding - Google Patents
Method and die for blow moldingInfo
- Publication number
- JPS5991037A JPS5991037A JP57200817A JP20081782A JPS5991037A JP S5991037 A JPS5991037 A JP S5991037A JP 57200817 A JP57200817 A JP 57200817A JP 20081782 A JP20081782 A JP 20081782A JP S5991037 A JPS5991037 A JP S5991037A
- Authority
- JP
- Japan
- Prior art keywords
- die
- parison
- blow molding
- heater
- product
- 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
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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
Abstract
Description
【発明の詳細な説明】
本発明は、ブＩ：ｆｆ−成形方法及びブロー成形用ダイ
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blow molding method and a blow molding die.
ブロー成形によりびん等の中空製品を成形する場合の成
形用樹脂とし“ζは、ポリエチレン、ポリプ１：Ｊピレ
ン等のポリオレフィン樹脂が汎用されているが、ポリオ
レフィン樹脂を用い°ζブロー成形を行った場合、パリ
ソンにメルトフラクチャー現象（パリソンの外面及び／
又は内面に柵かな凹凸部を生じる現象）が生じ易い。パ
リソンにこのようなメルトフラクチャー現象を生しると
、パリソンに空気を吹込んで成形しても製品の内外面が
円滑に仕上がらなくなる場合が多くなる為、外観を損な
い製品価値を劣化させ、その上製品の強度にも悪影響を
及ぼずことになる。When molding hollow products such as bottles by blow molding, "ζ" is a polyolefin resin such as polyethylene, polyp1:J pyrene, etc.; If the parison undergoes a melt fracture phenomenon (the outer surface of the parison and/or
or the phenomenon of creating uneven parts like fences on the inner surface) is likely to occur. If such a melt fracture phenomenon occurs in the parison, the inner and outer surfaces of the product will often not be finished smoothly even if air is blown into the parison and molded, which will impair the appearance and degrade the product value. This will not adversely affect the strength of the product.
本発明者は、ブ［Ｉ−成形におＬＪる上記のメルｌ−フ
ラクチャー現象の防止方法について種々横割した結果、
パリソンがダイを離脱する直前に加熱することによりメ
ルトフラクチ十−現象が防止されることを知見した。The present inventor has investigated various methods for preventing the above-mentioned melt fracture phenomenon in LJ forming.
It has been found that melt fracture can be prevented by heating the parison just before it leaves the die.
本発明は、上記知見に基づきなされたもので、ブ１１−
成形において、パリソンがダイをＦ４１１脱する直前に
該パリソンを加熱する事、好ましくは該パリソンをその
内外双方から加熱する事を特徴とするブロ−成形方法を
提供するものである。The present invention was made based on the above findings, and
The present invention provides a blow molding method characterized by heating the parison immediately before the parison leaves the die, preferably heating the parison from both the inside and outside of the parison.
また、本発明は、パリソンを押し出すためのブロー成形
用ダイにおい一ζ、？′８融樹脂の流動通路の中央部に
該流動通路に囲まれた空気孔を有し、ダイランｉ・部に
お＆Ｊる上記空気孔内にヒーターを設置し′Ｃある事を
特徴とするブロー成形用ダイを提供するものである。Furthermore, the present invention provides a blow molding die for extruding the parison. '8 A blower characterized in that it has an air hole surrounded by the flow path in the center of the flow path of the molten resin, and a heater is installed in the air hole in the die run part I and J. A molding die is provided.
以下、ソ「Ｉ−成形方法及びブロー成形用ダイについ′
（＾′ｒ゛述する。The following is about the "I-molding method and blow molding die"
(^'r゛described.
先゛ｉ、本発明のブロー成形方法の実施に好適するブロ
ー成形方法・イの一実施例について説明する。First, an embodiment of the blow molding method (i) suitable for carrying out the blow molding method of the present invention will be described.
第１図は、ブロー成形押し出し機に装着される・本発明
のブロー成形用ダイ１０の実施例を示す縦断面図で、ｌ
は熔融樹脂の流動通路、２はダイランド０１−で、これ
らの構成は、従来のこの種のダイの構成と何等変わらな
い。３は上記流動通路１の中央に該流動通路１で囲んで
設ＬＪた空気孔、４は上記空気孔３内の下部、即ら上記
ダイランド部２おりる」二記空気孔３内に設置したカー
トリッジヒーター、５は上記グイランド部２の外側に設
けたハンドヒーター、６はカートリッジヒーター４及び
ハンドヒーター５からの熱が主としてグイランド部２に
伝導され、それより上方に伝達するのを防止するために
ヒーター４及び５を設けた部位の上方にもうけたスリッ
トである。この他、図中、７は端子８を有する、上記カ
ートリッジヒーター４の導線である。FIG. 1 is a longitudinal sectional view showing an embodiment of a blow molding die 10 of the present invention installed in a blow molding extruder;
2 is a flow path for the molten resin, 2 is a die land 01-, and these structures are no different from those of conventional dies of this type. 3 is an air hole LJ installed in the center of the flow passage 1 surrounded by the flow passage 1, 4 is a lower part of the air hole 3, that is, the die land portion 2 is located inside the air hole 3. A cartridge heater, 5 is a hand heater provided outside the Guiland section 2, and 6 is a heater for preventing the heat from the cartridge heater 4 and the hand heater 5 from being mainly conducted to the Guiland section 2 and being transmitted upward therefrom. This is a slit provided above the area where the heaters 4 and 5 are provided. In addition, in the figure, 7 is a conducting wire of the cartridge heater 4, which has a terminal 8.
尚、第１図に示す実施例では、パン１′ヒーター５は、
ダイ１０の外側面に設Ｌｊであるが、グイランド部２の
外側であればハンドヒーター５に代えて適宜なヒーター
をダイ１０の内部に設げ°ζも良い。また、第１図に示
す実施例では、ヒーター４．５をグイランド部２の内方
及び外方に設けてあり、このように設けるのが最も好ま
しいが、目的とするブロー成形品の形状及び大きさ、熔
融樹脂の種１−Ｑの差異等にコ゛す、例えば、第３図に
しめず実施例におりる如く、何れか一方のヒーターを省
１１３することもできる。In the embodiment shown in FIG. 1, the pan 1' heater 5 is
Although it is provided on the outer surface of the die 10, an appropriate heater may be provided inside the die 10 in place of the hand heater 5 as long as it is outside the Guiland portion 2. Further, in the embodiment shown in FIG. 1, the heaters 4.5 are provided inside and outside of the Guiland part 2, and it is most preferable to provide them in this way, but depending on the shape and size of the intended blow-molded product. In addition, depending on the difference between the types of molten resin 1-Q, for example, as shown in the embodiment shown in FIG. 3, it is also possible to omit one of the heaters 113.
上述の如く、本発明のブロー成形用ダイｌＯは、ダイラ
ント゛部２の内力及び（又は）外方にヒーター４．５を
設りることにより、第２図及び第３図に示ず如くダーｆ
ｌＯから押し出されるパリソン１１をタイｌＯからＲｉ
ｔ ＩＱする直前に加熱するようになしである。As mentioned above, the blow molding die 1O of the present invention has a blow molding die lO as shown in FIGS.
The parison 11 pushed out from lO is transferred from tie lO to Ri
There is no need to heat it just before IQ.
次に、本発明のフ覧」−成形力法を、第１図に示す本発
明のゾＩＩ−成形用ダイを用い゛ζ実施する場合の実施
態様について第１図及び第２図を参照し乍ら説明する。Next, reference will be made to FIGS. 1 and 2 for an overview of the present invention in which the forming force method is carried out using the molding die of the present invention shown in FIG. I will explain.
本発明のブロー成形方法は、パリソン１１がダイＩＯを
８１１脱する直前に該パリソンを加熱する以外は、この
種の従来法と全く同様に実施されるもので、第１図に示
すダイｌＯを装着したブロー成形押し出し機（図示せず
）により、熔融樹脂をその流動通路ｌに供給しグイラン
ド部２の先端から第２図に示す如くパリソン１１を押し
出す（押し出したパリソンの力・ノド槻溝等Ｇま図示省
ｌ１ｌｈ）。この際、パリソン１１は、ダ伺Ｏのダイラ
ンド０■２にヒーター４，５を設りであるゾこめ、夕゛
イ１０から離脱する直前にその内外表面を該ヒーター４
及び５により加熱され、その結果、メルトフラクチャー
現象を生しるのを防止できる。ヒーター４及び５による
加熱量は熔融樹脂の温度を、押し出されるパリソン１１
の温度がヒーターを用ｔｌ）なし）場合に比して約２０
〜４０℃上昇する程度とｉ−ｈば良い。The blow molding method of the present invention is carried out in exactly the same manner as this type of conventional method, except that the parison 11 is heated immediately before it exits the die IO. The installed blow molding extruder (not shown) supplies molten resin to the flow path 1 and extrudes the parison 11 from the tip of the Guiland part 2 as shown in FIG. G (not shown). At this time, the parison 11 is equipped with heaters 4 and 5 on the die land 0 and 2 of the deck O, and the inner and outer surfaces of the parison 11 are covered with the heaters 4 and 5 immediately before leaving the bed 10.
and 5, and as a result, it is possible to prevent the melt fracture phenomenon from occurring. The amount of heating by the heaters 4 and 5 changes the temperature of the molten resin to the extruded parison 11.
The temperature is approximately 20% lower than with (without heater)
It is sufficient that the temperature rises by ~40°C.
本発明のブロー成形方法は、ブロー成形方法の種類に関
係なく適用可能であるが、押し出し機力・らパリソンを
押し出し、このノくリソンを目的とする形状の金型に入
れてブロー成形するエクストル−ジョンブロー成形に通
用した場合に時しこ効果ロタである。また、本発明の方
法は、使用する成形用樹脂の種類にも封環制限されずに
効果を発揮するものであるから、ブロー成形用樹脂とし
て汎用されており、比較的メルトフラクチャー現象を生
じ易いポリオレフィン樹脂を用いる場合に高６１辺ノ果
を奏′する。The blow molding method of the present invention can be applied regardless of the type of blow molding method, but extrusion is possible by extruding a parison from an extruder, putting the parison into a mold of the desired shape, and blow molding. - It is effective when used in John blow molding. Furthermore, the method of the present invention is effective regardless of the type of molding resin used, so it is widely used as a blow molding resin and is relatively prone to melt fracture phenomena. When polyolefin resin is used, a high 61-side effect is achieved.
尚、本発明方法の実施に用いられるブロー成形用ダ・イ
としては、上述した本発明のブロー成形用タイを用いる
のが好ましいが、本発明方法に於ける加Ｅ！目−程をな
しくｑるものであれば、それに限定されるものではない
。また、容器内部にメルトフラクチ十−現象が生じても
特に問題にならない場合にＩＪ、第３図に示す如く、パ
リソンの外側からのめ加熱しζも良く、そうするごとに
よりイυＪソンの外面にメルトソラクチャー現象が発生
ずるのを防止できる。It is preferable to use the above-described blow molding tie of the present invention as the blow molding die used in carrying out the method of the present invention. It is not limited to anything as long as it is of a certain value. In addition, when there is no particular problem even if a melt fracture phenomenon occurs inside the container, it is possible to heat the parison from the outside as shown in Figure 3. It is possible to prevent the melt melt phenomenon from occurring.
以下に本発明のブロー成形方法による効果を示す試験例
を挙げる。Test examples showing the effects of the blow molding method of the present invention are listed below.
試験例
下表に示ずブロ−成形用タイを用い下表に示す条イ′じ
トに常法によりブロー成形を行ったところ、試験Ｎ＋＋
、 １の場合（本発明、第２図参照）には、パリソンの
内外両面前れにも全くメルトフラクチャーは発生せず、
試験！ｌｌｏ、 ２の場合（本発明、第３図参照）には
、パリソンの外面には全くメルトフラクヂャーの発生が
認められた。しかし、試験Ｎｏ、 ３の場合（対照）に
は、パリソンの内外両面に亘りメルｌ−フラクチャーが
発生した。Test Example When blow molding was performed using a blow molding tie (not shown in the table below) on the strip sheet shown in the table below in a conventional manner, test N++ was obtained.
In case 1 (see the present invention, Fig. 2), no melt fracture occurs at the front of both the inner and outer surfaces of the parison.
test! In the case of llo, 2 (invention, see FIG. 3), no melt fracture was observed on the outer surface of the parison. However, in the case of Test No. 3 (control), Mel-l-fractures occurred on both the inside and outside of the parison.
Ｎｏ、Ｉ Ｎｏ、２ Ｎｏ、３
・使用樹脂 ＩＩＩ）ＰＩ ＊ ｌ
／／ ”・使用ダイ
カートリッジヒーター＊２ 有 無 無ハンドヒ
ーター＊３ 有 有 無スリット＊４
自 有 有・押し出し条件
押し出し量（ｋｇ／ｈｒ） ４０ ４０
４０ダイ入口温度”Ｃ２００２００２００
ダイ出口温度’Ｃ２３０２３０２００
＊１高密度ポリエチレン
＊２１吊φ６．２５讃■ 長さ１３８窮−１２４０シ／
１７５Ｗ（第２図参照）
＊３径φ’ ５０ｍｍ 長さｌ ’２８ｍｍ 、２２
０Ｖ／２００Ｗ（第３図参照）
’に４ ＩＩＪｍ ２．２ｍｍ 深さｎ １１ｍ
ｍ叙−１−の如く、本発明のブロー成形方法によれば、
従来法におい−ζパリソンがダイをＡｌｌ Ｊｌする直
前に加熱する丈でメルトフラクチャー現象の発生を防止
できるから、従来のブロー成形用ダイを、例えば本発明
のブロー成形用ダイの如（一部改良する丈で実質１−従
来のブｌ、Ｉ−成形と同様に実施するごとによりメルト
ソラクチャー現象の発生による製品外観の劣化及び製品
の強度の低下を阻止できる。No, I No, 2 No, 3 ・Resin used III) PI * l
// ”・Used die cartridge heater *2 Yes No No hand heater *3 Yes Yes No slit *4
Owned Extrusion conditions Extrusion amount (kg/hr) 40 40
40 Die inlet temperature 'C200200200 Die outlet temperature 'C230230200 *1 High-density polyethylene *21 Hanging φ6.25 cm Length 138 mm - 1240 cm /
175W (see Figure 2) *3 Diameter φ' 50mm Length l '28mm, 22
0V/200W (see Figure 3) 4 IIJm 2.2mm Depth n 11m
According to the blow molding method of the present invention, as shown in Section 1-1,
In the conventional method, the melt fracture phenomenon can be prevented by heating the ζ parison just before the die is heated. By carrying out the molding process in the same manner as conventional blue molding and I molding, it is possible to prevent the appearance of the product from deteriorating and the strength of the product from decreasing due to the occurrence of the melt melt phenomenon.
第１図は、本発明のブロー成形用ダイの実施例を示゛■
旧ＩＪｉ面図、第２図は、その先ｖｊｎ部をパリソン押
し出し態様と共に示す縦断面図、第３図は、本発明０ブ
ｌ、１−成形用ダイの別の実施例の先端部をパリソン押
し出し態様と共に示す縦断面図である。
１ （１・ ・ ・ダイ
１１・・・パリソン
■・・・／８融樹脂の流動通路
２・・・タイラント部
３・・・空気孔
４．５・・・ヒーター
６・ ・ ・スリット
特許出願人
花 王 石 鹸 株式会社
■、事件の表示
特願昭５７−２００８１７号
２、発明の名称
ブロー成形方法及びブロー成形用グイ
３、補正をする者
事件との関係 特許出願人
（０９１）花 王 石 鹸 株式会社
４、代理人
東京都港区赤坂九丁目６番２９号
パシフィック乃木坂６０１号FIG. 1 shows an embodiment of the blow molding die of the present invention.
The old IJi side view, Figure 2 is a vertical cross-sectional view showing the tip vjn part along with the parison extrusion mode, and Figure 3 is the front end of another embodiment of the molding die of the present invention when the parison is extruded. It is a longitudinal cross-sectional view shown together with an extrusion mode. 1 (1...Die 11...Parison ■.../8 Molten resin flow path 2...Tyrant section 3...Air hole 4.5...Heater 6...Slit Patent applicant Kao Soap Co., Ltd., Patent Application No. 57-200817 No. 2, Title of the invention: Blow molding method and blow molding goo 3, Relationship with the person making the amendment: Patent applicant (091) Kao Stone Ken Co., Ltd. 4, Agent: 601 Pacific Nogizaka, 6-29 Akasaka 9-chome, Minato-ku, Tokyo
Claims (1)
する直前に該パリソンを加熱する事を特徴とするゾＩＩ
−成形方法。 ＋２）上記パリソンをその内外双方がら加熱する、’Ｉ
ｔ ｆＦ Ｎｉ’ｊ求ノ範１ｍ ｍ （Ｉ ｌ ’Ａ
記載０） フ１２ ＃Ｓｃ 形方法。 （３）パリソンを押し出すだめのブロー成形用ダイにお
いて、溶面ｊ樹脂の流動通路の中央部に該流動通路に囲
まれた空気孔を合し、ダイラント部におりる上記空気孔
内にヒーターを設置しである事を特徴とするブロー成形
用ダイ。 （４）タイ９フ１８部の外側にもヒーターが設りである
、’ｌ’１．ｉ’ｌ請求の範囲第（３）項記載のブ１」
−成形用ダーイ。 （５）ヒーターが設置されている部位の外側面であって
上記ダイラント部の上方にスリン）・を設け“ζある、
特ａ“「請求の範囲第（３）項記載のブロー成形用ダイ
。[Claims] (1) So! 1- Zo II, characterized in that the parison is heated immediately before it leaves the die during molding.
- Molding method. +2) Heat the above parison both inside and outside, 'I
t fF Ni'j seeking range 1m m (I l 'A
Description 0) F12 #Sc type method. (3) In the blow molding die for extruding the parison, align the air hole surrounded by the flow path with the center of the flow path of the resin on the melting surface, and install a heater in the air hole that goes into the die-lant part. A die for blow molding that is characterized by being installed. (4) There is also a heater on the outside of the 9th and 18th part of the tie, 'l'1. i'l Claim (3) ``B1''
-Die for molding. (5) On the outer surface of the part where the heater is installed and above the dielant part, a sulin) is provided.
Particular feature a: "The blow molding die according to claim (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57200817A JPS5991037A (en) | 1982-11-16 | 1982-11-16 | Method and die for blow molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57200817A JPS5991037A (en) | 1982-11-16 | 1982-11-16 | Method and die for blow molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5991037A true JPS5991037A (en) | 1984-05-25 |
Family
ID=16430686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57200817A Pending JPS5991037A (en) | 1982-11-16 | 1982-11-16 | Method and die for blow molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5991037A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339153A (en) * | 2013-07-22 | 2016-02-17 | 温德默勒&霍乐沙两合公司 | Extrusion tool with heating of the outlet region, method for producing tubular plastics film |
| US10578133B2 (en) | 2016-09-29 | 2020-03-03 | Honda Motor Co., Ltd. | Clutch actuator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833432A (en) * | 1981-08-25 | 1983-02-26 | Mitsui Toatsu Chem Inc | Method for blow molding of polypropylene |
| JPS58217327A (en) * | 1982-06-11 | 1983-12-17 | Mitsui Petrochem Ind Ltd | Hollow molding method for poly 4-methyl-1-pentene and die for hollow molding |
-
1982
- 1982-11-16 JP JP57200817A patent/JPS5991037A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833432A (en) * | 1981-08-25 | 1983-02-26 | Mitsui Toatsu Chem Inc | Method for blow molding of polypropylene |
| JPS58217327A (en) * | 1982-06-11 | 1983-12-17 | Mitsui Petrochem Ind Ltd | Hollow molding method for poly 4-methyl-1-pentene and die for hollow molding |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339153A (en) * | 2013-07-22 | 2016-02-17 | 温德默勒&霍乐沙两合公司 | Extrusion tool with heating of the outlet region, method for producing tubular plastics film |
| CN105339153B (en) * | 2013-07-22 | 2018-02-06 | 温德默勒&霍乐沙两合公司 | The extrusion die of heater with discharging area, the method for producing plastic flexible pipe film |
| EP3024629B1 (en) * | 2013-07-22 | 2018-11-14 | Windmöller & Hölscher KG | Extrusion die having a heating of the die lips zone, process for the manufacturing of an extruded plastic blown film |
| US10538024B2 (en) | 2013-07-22 | 2020-01-21 | Windmöller & Hölscher Kg | Extrusion tool with heating of the outlet region, method for producing a tubular plastics film |
| US10578133B2 (en) | 2016-09-29 | 2020-03-03 | Honda Motor Co., Ltd. | Clutch actuator |
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