JPH04122614A - Mandrel release agent for molded hose and manufacture of molded hose using same - Google Patents
Mandrel release agent for molded hose and manufacture of molded hose using sameInfo
- Publication number
- JPH04122614A JPH04122614A JP24304890A JP24304890A JPH04122614A JP H04122614 A JPH04122614 A JP H04122614A JP 24304890 A JP24304890 A JP 24304890A JP 24304890 A JP24304890 A JP 24304890A JP H04122614 A JPH04122614 A JP H04122614A
- Authority
- JP
- Japan
- Prior art keywords
- release agent
- molded
- mandrel
- hose
- mold release
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 17
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical class [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 claims abstract description 17
- 229940096992 potassium oleate Drugs 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims abstract 4
- -1 polyethylene chloride Polymers 0.000 claims abstract 3
- 239000006082 mold release agent Substances 0.000 claims description 48
- 238000004073 vulcanization Methods 0.000 claims description 13
- 229920002943 EPDM rubber Polymers 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 13
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 229920001577 copolymer Polymers 0.000 abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 abstract 1
- 229940049964 oleate Drugs 0.000 abstract 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 abstract 1
- 229920001897 terpolymer Polymers 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004034 viscosity adjusting agent Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、新規の成形ホース用マンドレルT型剤と、そ
の離型剤を用いた成形ホースの製i方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a novel mandrel T-shaped agent for molded hoses and a method for manufacturing molded hoses using the mold release agent.
本発明の離型剤は、塩素化ポリエチレ゛(CM)、エチ
レン−プロピレン共重合イ(EPR)、エチレン−プロ
ピレン−ジエン三元共重合体(EPDM)でその最内層
が構成2れる成形ホースの製造に際し、特に有用−・〈
従来の技術〉
自動車その他の分野において、狭い空間内に所定の長さ
のホースを配置したいという要望力比され、それを満足
するホースとして、曲が町管とも呼ばれる成形ホースが
提案され、使用されるに到っている。The mold release agent of the present invention is suitable for molded hoses whose innermost layer is composed of chlorinated polyethylene (CM), ethylene-propylene copolymer (EPR), or ethylene-propylene-diene terpolymer (EPDM). Particularly useful in manufacturing.
Prior Art> In automobiles and other fields, there is a growing demand for hoses of a predetermined length to be placed in narrow spaces, and a molded hose, also known as a curved tube, has been proposed and used as a hose that satisfies this requirement. It has reached the point where
ところで、成形ホースの製造においては、所定の形状に
曲げられた成形マンドレルヲ用い、ゴムを加硫した後に
、その曲げられた成形マンドレルを引き抜く。 この曲
がったマンドレルを加硫ホースから引き抜くという工程
があるために、成形ホースの製造に際し、マンドレル離
型剤の選択は重要である。By the way, in manufacturing a molded hose, a molding mandrel bent into a predetermined shape is used, and after rubber is vulcanized, the bent molding mandrel is pulled out. Since there is a step of pulling out the bent mandrel from the vulcanized hose, the selection of a mandrel release agent is important when manufacturing a molded hose.
このような成形ホースの製造に用いられるマンドレル離
型剤に求められる特性は下記の通りである。The characteristics required of the mandrel mold release agent used in the production of such molded hoses are as follows.
(1)マンドレルへの未加硫ホースの挿入性が良好であ
る事
(2)マンドレルからの加硫ホースの引き抜き性が良好
である事
(3)加硫後、ホース内表面に付着した離型剤が容易に
水洗除去され得る事
そして、現在使用されている成形ホース用マンドレル離
型剤は、ポリオキシアルキレングリコール系化合物と変
性シリコンオイル系化合物に大別され、価格の点におけ
る有利さから、主に前者が使用されている。(1) The ease of inserting the unvulcanized hose into the mandrel is good. (2) The ease with which the vulcanized hose is pulled out from the mandrel is good. (3) There is no mold release that adheres to the inner surface of the hose after vulcanization. The mandrel mold release agents for molded hoses currently in use are broadly classified into polyoxyalkylene glycol compounds and modified silicone oil compounds, which are advantageous in terms of price. The former is mainly used.
〈発明が解決しようとする課題〉
本発明者等は、成形ホースの開発に携わっているが、今
般、成形ホースの原料ポリマーの種類によフては、従来
のマンドレル離型剤が使用不可能であることを知見した
。<Problems to be Solved by the Invention> The present inventors are involved in the development of molded hoses, but the conventional mandrel mold release agent cannot be used depending on the type of raw material polymer for the molded hose. We found that.
具体的に述べると、成形ホースの最内層に用いる原料ポ
リマーがCM、EPRあるいはEPDMの場合、従来公
知のマンドレル離型剤を用いると、前記原料ポリマーと
離型剤中の成分とが反応し、離型剤が変質し、離型性が
なくなるのみならず、離型剤が水に不溶性となって成形
ホースから水洗除去できなくなることが判明した。 そ
して、最内層に用いる原料ポリマーがCM系、EPRあ
るいはEPDMである成形ホースの製造に使用できるマ
ンドレル離型剤は知られていない。Specifically, when the raw material polymer used for the innermost layer of the molded hose is CM, EPR, or EPDM, when a conventionally known mandrel mold release agent is used, the raw material polymer and components in the mold release agent react, It was found that the mold release agent not only deteriorated in quality and lost its mold release properties, but also became insoluble in water and could not be removed by washing with water from the molded hose. There is no known mandrel release agent that can be used to manufacture a molded hose in which the raw material polymer used for the innermost layer is CM, EPR, or EPDM.
本発明は、上記の事実に鑑みてなされたものであり、最
内層に用いる原料ポリマーがCM、EPRあるいはEP
DMである成形ホースの製造にも使用可能な成形ホース
用マンドレル館型剤と、そのような離型剤を用いた成形
ポースの製造方法の提供を目的とする。The present invention has been made in view of the above facts, and the raw material polymer used for the innermost layer is CM, EPR or EP.
The purpose of the present invention is to provide a mandrel molding agent for a molded hose that can also be used for manufacturing molded hoses that are DM, and a method for manufacturing molded hoses using such a mold release agent.
〈課題を解決するための手段〉
本発明第一の態様は、オレイン酸カリウムおよび/また
はその誘導体を主成分とすることを特徴とする成形ホー
ス用マンドレル離型剤である。<Means for Solving the Problems> The first aspect of the present invention is a mandrel mold release agent for molded hoses, which is characterized by containing potassium oleate and/or a derivative thereof as a main component.
本発明第二の態様は、オレイン酸カリウムおよび/また
はその誘導体100重量部に対し、ジェタノールアミン
70重量部以下(Oは含まず)を含有するオレイン酸カ
リウムおよび/またはその誘導体とジェタノールアミン
との混合物を主成分とすることを特徴とする成形ホース
用マンドレル離型剤である。A second aspect of the present invention provides potassium oleate and/or a derivative thereof containing 70 parts by weight or less of jetanolamine (not including O) and jetanolamine, based on 100 parts by weight of potassium oleate and/or its derivative. This is a mandrel mold release agent for molded hoses, characterized in that the main component is a mixture of
本発明第三の態様は、マンドレルの外表面に、本発明第
一の態様または第二の態様の成形ホース用マンドレル離
型剤を塗布する工程を有することを特徴とする成形ホー
スの製造方法である。A third aspect of the present invention is a method for producing a molded hose, comprising the step of applying the mandrel mold release agent for molded hoses according to the first or second aspect of the present invention to the outer surface of the mandrel. be.
以下に、本発明の詳細な説明する。The present invention will be explained in detail below.
はじめに、本発明第一の態様および第二の態様について
説明する。First, the first and second aspects of the present invention will be explained.
本発明で用いるオレイン酸カリウムは、分子式CL3
(CH2) 7CH−CH(C)12)7COOにで示
される化合物であり、オレイン酸カリウムの誘導体は、
オレイン酸カリウムの有する水素原子のうちの1箇所以
上が、水酸基、カルボキシル基等の親木性基で代替され
た化合物を指す。Potassium oleate used in the present invention has the molecular formula CL3
(CH2)7CH-CH(C)12)7COO is a compound represented by (CH2)7CH-CH(C)12)7COO, and the derivative of potassium oleate is
Refers to a compound in which one or more of the hydrogen atoms of potassium oleate is replaced with a wood-philic group such as a hydroxyl group or a carboxyl group.
本発明第一の態様の離型剤は、上記オレイン酸カリウム
および/またはその誘導体を主成分とするが、これ以外
に含有してもよい成分としては、水、アルコール等が例
示される。 特に水は、粘度調整剤として有用である。The mold release agent of the first aspect of the present invention has the above-mentioned potassium oleate and/or its derivative as a main component, but other components that may be included include water, alcohol, etc. Water is particularly useful as a viscosity modifier.
また、本発明第二の態様の離型剤は、上記オレイン酸カ
リウムおよび/またはその誘導体とジェタノールアミン
との混合物を主成分とするが、これ以外に含有してもよ
い成分としては、水、アルコール等が例示される。 特
に水は、粘度調整剤として有用である。Further, the mold release agent according to the second aspect of the present invention mainly contains a mixture of the above-mentioned potassium oleate and/or its derivative and jetanolamine, but other components that may be contained include water. , alcohol, etc. Water is particularly useful as a viscosity modifier.
本発明第二の態様の離型剤におけるオレイン酸カリウム
および/またはその誘導体とジェタノールアミンとの量
比は、オレイン酸カリウムおよび/またはその誘導体1
00重量部に対し、ジェタノールアミン70重量部以下
(Oは含まず)である。 本発明第二の態様の離型剤は
、ジェタノールアミンが併用されているために、特に加
硫後引抜性に優れる。 しかし、ジェタノールアミンを
70重量部超とすると、加硫後引抜性(マンドレルから
の加硫ホースの弓抜性)が悪くなる。The ratio of potassium oleate and/or its derivative to jetanolamine in the mold release agent of the second aspect of the present invention is 1:1 of potassium oleate and/or its derivative:
00 parts by weight, jetanolamine is 70 parts by weight or less (not including O). The mold release agent according to the second aspect of the present invention has especially excellent post-vulcanization drawability because jetanolamine is used in combination. However, if the amount of jetanolamine exceeds 70 parts by weight, the drawability after vulcanization (the pullability of the vulcanized hose from the mandrel) will deteriorate.
本発明第一の態様、第二の態様の離型剤は、成形ホース
の原料ポリマーの種類によらず使用可能であるが、特に
、従来は離型剤が知られていなかった、その最内層が塩
素化ポリエチレン(CM)、エチレン−プロピレン共重
合体(EPR)、エチレン−プロピレン−ジエン元共重
合体(EPDM)のうちの1種以上をポリマー中の70
重量%以上含有するポリマー組成物で構成される成形ホ
ース用の離型剤として有用である。 繰り返すが、これ
はCM、EPR,EPDMのうちの1種以上がポリマー
中の70重量%未満のポリマー組成物でその最内層が構
成される成形ホース用の離型剤として、本発明の離型剤
を使用することを排除するものではない。The mold release agents of the first and second aspects of the present invention can be used regardless of the type of raw material polymer for the molded hose, but are particularly applicable to the innermost layer of the molded hose, for which no mold release agent has conventionally been known. 70 in the polymer, one or more of chlorinated polyethylene (CM), ethylene-propylene copolymer (EPR), and ethylene-propylene-diene copolymer (EPDM)
It is useful as a mold release agent for molded hoses composed of polymer compositions containing at least % by weight. To repeat, this is a mold release agent of the present invention as a mold release agent for a molded hose whose innermost layer is composed of a polymer composition in which one or more of CM, EPR, and EPDM is less than 70% by weight in the polymer. This does not preclude the use of agents.
なお、上記成形ホースの最内層用のポリマー組成物に含
有されるCM、EPR,EPDM以外のポリマーとして
は、C5M、SBR。In addition, examples of polymers other than CM, EPR, and EPDM contained in the polymer composition for the innermost layer of the molded hose include C5M and SBR.
NBR%CR等が例示される。 また、ポリマー以外の
成分としては、過酸化物系加硫剤、゛充填剤、可塑剤、
老化防止剤、補強剤、加硫助剤等が例示される。Examples include NBR%CR. In addition, components other than polymers include peroxide vulcanizing agents, fillers, plasticizers,
Examples include anti-aging agents, reinforcing agents, and vulcanization aids.
次に、本発明第三の態様について説明する。Next, the third aspect of the present invention will be explained.
本発明第三の態様は、マンドレルの外表面に、本発明第
一の態様または第二の態様の成形ホース用マンドレル離
型剤を塗布する工程を有することを特徴とする成形ホー
スの製造方法である。A third aspect of the present invention is a method for producing a molded hose, comprising the step of applying the mandrel mold release agent for molded hoses according to the first or second aspect of the present invention to the outer surface of the mandrel. be.
本発明の成形ホースの製造方法は、マンドレル離型剤と
して、本発明第一の態様または第二の態様の離型剤を用
いる以外は特に限定されないが、好適例を次に述べる。The method for producing a molded hose of the present invention is not particularly limited except that the mold release agent of the first or second aspect of the present invention is used as the mandrel mold release agent, but preferred examples will be described below.
成形ホースは、下記(1)〜(5)の工程を経て製造さ
れる。The molded hose is manufactured through the following steps (1) to (5).
(1)マンドレルの外表面に、本発明第一の態様または
第二の態様の成形ホース用マンドレル離型剤を塗布し、
(2)マンドレルの外側に未加硫ホースを形成し、
(3)加硫を行ない、
(4)マンドレルを引き抜き、
(5)ホースを洗浄して成形ホース用マンドレル離型剤
を除去する。(1) Applying the mandrel mold release agent for molded hoses according to the first or second aspect of the present invention to the outer surface of the mandrel, (2) Forming an unvulcanized hose on the outside of the mandrel, (3) Vulcanization is performed, (4) the mandrel is pulled out, and (5) the hose is washed to remove the mold release agent for the molded hose mandrel.
上記第一工程は、所定形状の鉄製、ステンレス製、アル
ミニウム製等のマンドレル外表面に、通常の手段により
、層厚001〜1mm程度に離型剤を塗布する工程であ
る。 この際、離型剤は、塗布可能で、かつ、後工程6
加硫時にも、だれたり流れたりしない程度の重度に調整
して用いるのがよく、そのような粘B調整剤としては、
水が最適である。The above-mentioned first step is a step of applying a mold release agent to a layer thickness of about 0.01 to 1 mm on the outer surface of a mandrel made of iron, stainless steel, aluminum, or the like having a predetermined shape by ordinary means. At this time, the mold release agent is coatable and the post-process 6
Even during vulcanization, it is best to adjust the severity so that it does not drip or run, and such viscosity B modifiers include:
Water is best.
第二工程は、未加硫ホース形成の工程であシが、ここで
用いるポリマー組成物の組成は段窓されない。 また、
ホースの構成も限定さtず、単管でも二層以上で構成し
てもよく、袢強層は設けても設けなくてもよい。 さら
に、マンドレルの外側への未加硫ホースの形部方法も特
に限定されず、ポリマー組成物によ2チユーブの形成は
、主に押出機を使用する公矢の方法で、また、補強層の
形成は、編組機を片いた公知の方法で行なえばよい。The second step is the step of forming an unvulcanized hose, but the composition of the polymer composition used here is not variable. Also,
The configuration of the hose is not limited either, and may be a single tube or composed of two or more layers, and a reinforcing layer may or may not be provided. Furthermore, the method of forming the unvulcanized hose on the outside of the mandrel is not particularly limited, and the formation of the two tubes from the polymer composition is mainly done by Koya's method using an extruder, and also by the method of Koya, which uses an extruder. The formation may be performed using a known method using a braiding machine.
第三工程は、加硫の工程である。The third step is a vulcanization step.
この工程も、特に限定されない。 用いたポリマー組成
物の種類によって決定される最適礫件下で、スチーム加
硫、LCM加硫、HAVガ硫等の公知の方法で行なえは
よい。This step is also not particularly limited. It may be carried out by known methods such as steam vulcanization, LCM vulcanization, HAV gas vulcanization, etc. under optimal conditions determined by the type of polymer composition used.
第四工程は、マンドレルの引き抜き工程である。The fourth step is a mandrel drawing step.
そして、第五工程は、離型剤の除去工程である。The fifth step is a mold release agent removal step.
離型剤の成形ホースからの除去には、洗浄剤として水性
溶液(例えば木、各種界面活性側水溶液、酸あるいはア
ルカリ水溶液等)、好ましくは水を用いるが、これは、
洗浄剤として有機溶剤を用いると、加硫ホースが膨潤劣
化したり、作業環境が悪化するためである。To remove the mold release agent from the molded hose, an aqueous solution (e.g., wood, various surface-active aqueous solutions, acid or alkaline aqueous solutions, etc.), preferably water, is used as a cleaning agent.
This is because if an organic solvent is used as a cleaning agent, the vulcanized hose will swell and deteriorate, and the working environment will deteriorate.
このようにして、成形ホースが容易に製造さ〈実施例〉 以下に、実施例により、本発明を具体的に説明する。In this way, a molded hose can be easily manufactured (Example) EXAMPLES The present invention will be specifically explained below with reference to Examples.
(実施例)
鉄製成形ホース用マンドレルの外表面に、表2に示す離
型剤を塗布し、その上に、表1に示すポリマー組成物の
うちのいずれかを押出機により押し出し、未加硫ホース
を形成した。(Example) A mold release agent shown in Table 2 was applied to the outer surface of a mandrel for iron molded hose, and one of the polymer compositions shown in Table 1 was extruded onto the outer surface of the mandrel for unvulcanized hoses using an extruder. Formed a hose.
次に、これを、160℃、30分間の条件でスチーム加
硫に供した。Next, this was subjected to steam vulcanization at 160° C. for 30 minutes.
その後、マンドレルから加硫をホースを引き抜き、引き
抜き易さを評価した。Thereafter, the vulcanized hose was pulled out from the mandrel, and the ease with which it was pulled out was evaluated.
さらに、加硫ホースを水洗し、離型剤の除去され易さを
評価した。Furthermore, the vulcanized hose was washed with water and the ease with which the release agent was removed was evaluated.
また、これとは別に、離型剤自体の水溶性も評価した。Separately, the water solubility of the mold release agent itself was also evaluated.
結果は表2に示した。 なお、離型剤の種類が同じであ
れば、ホース内層ゴムとして、表1に示す3種類のいず
れのポリマー組成物を用いた場合も、ホース評価結果お
よび離型剤自体の水溶性は同様であったので、表2には
、離型剤の種類ごとの評価結果のみを示した。The results are shown in Table 2. In addition, if the type of mold release agent is the same, the hose evaluation results and the water solubility of the mold release agent itself will be the same no matter which of the three types of polymer compositions shown in Table 1 are used as the hose inner layer rubber. Therefore, Table 2 shows only the evaluation results for each type of mold release agent.
また、評価基準は下記の通りである。Moreover, the evaluation criteria are as follows.
(加硫後引抜性)
◎:優 O:良
△:可 ×:不可
(ホースの洗浄性)
○:良 (簡単なすすぎで離型剤が除去できる)
×、不可(離型剤がホースに付着し、除去できない)
(lIII型剤自体の水溶性)
◎・優 O・良
△:可 ×:不可
表
(イ1) 信越化学工業製 シリコン系マンドレル離
型剤(中2)()内は重量比である。(Pulllability after vulcanization) ◎: Excellent O: Good △: Acceptable ×: Impossible (Hose washability) ○: Good (Releasing agent can be removed by simple rinsing) (Adheres and cannot be removed) (Water solubility of the III type agent itself) ◎・Excellent O・Good△: Acceptable ×: Not possible Table (A1) Shin-Etsu Chemical Silicone Mandrel Mold Release Agent (Medium 2) (In parentheses) It is a weight ratio.
〈発明の効果〉
本発明により、成形ホース用マンドレル離型剤に求めら
れる諸特性を満足する新規の離型剤と、その離型剤を用
いる成形ホースの製造方法が提供される。<Effects of the Invention> The present invention provides a novel mold release agent that satisfies various properties required of a mandrel mold release agent for molded hoses, and a method for producing molded hoses using the mold release agent.
本発明の離型剤は、従来は使用可能な離型剤がなかった
その最内層に用いるポリマー組成物中の原料ポリマーが
CM系、EPRあるいはEPDMである成形ホースの製
造に際し、マンドレル離型剤として用いることができる
。 従って、本発明により、耐熱性、耐油性、耐薬品性
等の性質に優れるCM系、EPRあるいはEPDMを原
料ポリマーとして用いて最内層が形成された成形ホース
が提供されるようになる。The mold release agent of the present invention can be used as a mandrel mold release agent when manufacturing a molded hose in which the raw material polymer in the polymer composition used for the innermost layer is CM type, EPR or EPDM, for which no mold release agent has conventionally been available. It can be used as Therefore, the present invention provides a molded hose in which the innermost layer is formed using CM, EPR, or EPDM, which has excellent properties such as heat resistance, oil resistance, and chemical resistance, as a raw material polymer.
Claims (6)
主成分とすることを特徴とする成形ホース用マンドレル
離型剤。(1) A mandrel mold release agent for molded hoses, characterized by containing potassium oleate and/or its derivatives as a main component.
00重量部に対し、ジエタノールアミン70重量部以下
(Oは含まず)を含有するオレイン酸カリウムおよび/
またはその誘導体とジエタノールアミンとの混合物を主
成分とすることを特徴とする成形ホース用マンドレル離
型剤。(2) Potassium oleate and/or its derivative 1
Potassium oleate and/or containing 70 parts by weight or less of diethanolamine (not including O) per 00 parts by weight
A mandrel mold release agent for molded hoses, characterized in that the main component is a mixture of diethanolamine or a derivative thereof and diethanolamine.
ピレン−ジエン三元共重合体のうちの1種以上をポリマ
ー中の70重量%以上含有するポリマー組成物で最内層
が構成されている成形ホースである請求項1または2に
記載の成形ホース用マンドレル離型剤。(3) The molded hose is made of a polymer composition containing at least 70% by weight of one or more of chlorinated polyethylene, ethylene-propylene copolymer, and ethylene-propylene-diene terpolymer. The mandrel mold release agent for a molded hose according to claim 1 or 2, which is a molded hose having an inner layer.
の成形ホース用マンドレル離型剤を塗布する工程を有す
ることを特徴とする成形ホースの製造方法。(4) A method for manufacturing a molded hose, comprising the step of applying the mandrel mold release agent for molded hoses according to claim 1 or 2 to the outer surface of a mandrel.
の成形ホース用マンドレル離型剤を塗布し、続いて、マ
ンドレルの外側に未加硫ホースを形成し、加硫を行ない
、その後マンドレルを引き抜き、ホースを水洗して成形
ホース用マンドレル離型剤を除去する請求項4に記載の
成形ホースの製造方法。(5) The mandrel mold release agent for molded hoses according to claim 1 or 2 is applied to the outer surface of the mandrel, and then an unvulcanized hose is formed on the outside of the mandrel, vulcanization is performed, and then the mandrel is 5. The method for producing a molded hose according to claim 4, wherein the molded hose mandrel mold release agent is removed by pulling out the molded hose and washing the hose with water.
ピレン−ジエン三元共重合体のうちの1種以上をポリマ
ー中の70重量%以上含有するポリマー組成物で最内層
が構成されている成形ホースである請求項4または5に
記載の成形ホースの製造方法。(6) The molded hose is made of a polymer composition containing at least 70% by weight of one or more of chlorinated polyethylene, ethylene-propylene copolymer, and ethylene-propylene-diene terpolymer. The method for manufacturing a molded hose according to claim 4 or 5, wherein the molded hose has an inner layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24304890A JPH04122614A (en) | 1990-09-13 | 1990-09-13 | Mandrel release agent for molded hose and manufacture of molded hose using same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24304890A JPH04122614A (en) | 1990-09-13 | 1990-09-13 | Mandrel release agent for molded hose and manufacture of molded hose using same |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04122614A true JPH04122614A (en) | 1992-04-23 |
Family
ID=17098044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24304890A Pending JPH04122614A (en) | 1990-09-13 | 1990-09-13 | Mandrel release agent for molded hose and manufacture of molded hose using same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04122614A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5647950A (en) * | 1991-06-28 | 1997-07-15 | Pall Corporation | Filter assembly with a spin welded end cap |
US5776342A (en) * | 1995-01-13 | 1998-07-07 | Pall Corporation | Filter assembly |
WO2023084909A1 (en) * | 2021-11-15 | 2023-05-19 | ライオン・スペシャリティ・ケミカルズ株式会社 | Release agent for molding vulcanized rubber, aqueous diluent, method for producing molded vulcanized-rubber article, and molded vulcanized-rubber article |
-
1990
- 1990-09-13 JP JP24304890A patent/JPH04122614A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5647950A (en) * | 1991-06-28 | 1997-07-15 | Pall Corporation | Filter assembly with a spin welded end cap |
US5776342A (en) * | 1995-01-13 | 1998-07-07 | Pall Corporation | Filter assembly |
WO2023084909A1 (en) * | 2021-11-15 | 2023-05-19 | ライオン・スペシャリティ・ケミカルズ株式会社 | Release agent for molding vulcanized rubber, aqueous diluent, method for producing molded vulcanized-rubber article, and molded vulcanized-rubber article |
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