JP7401927B2 - 可撓管 - Google Patents
可撓管 Download PDFInfo
- Publication number
- JP7401927B2 JP7401927B2 JP2021205032A JP2021205032A JP7401927B2 JP 7401927 B2 JP7401927 B2 JP 7401927B2 JP 2021205032 A JP2021205032 A JP 2021205032A JP 2021205032 A JP2021205032 A JP 2021205032A JP 7401927 B2 JP7401927 B2 JP 7401927B2
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- less
- flexible
- arithmetic mean
- mean roughness
- 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.)
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 22
- 229920001971 elastomer Polymers 0.000 claims description 15
- 239000000806 elastomer Substances 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 15
- 230000003746 surface roughness Effects 0.000 claims description 10
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 235000013305 food Nutrition 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims description 2
- 238000010828 elution Methods 0.000 description 19
- 230000006835 compression Effects 0.000 description 17
- 238000007906 compression Methods 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 239000012530 fluid Substances 0.000 description 11
- 238000011084 recovery Methods 0.000 description 10
- 239000011342 resin composition Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000007922 dissolution test Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000004439 roughness measurement Methods 0.000 description 2
- 229920006132 styrene block copolymer Polymers 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 229920002145 PharMed Polymers 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009506 drug dissolution testing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- -1 styrene -ethylene-propylene-styrene Chemical class 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C5/00—Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/06—Hoses, i.e. flexible pipes made of rubber or flexible plastics with homogeneous wall
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Description
以下、実施例によって本発明を詳細に説明する。実施例では、スチレン系エラストマーを主成分とする可撓管の試料を実施例1,2として、オレフィン系エラストマーを主成分とする可撓管の試料を比較例1,2としてそれぞれ準備した。そして、各試料について可撓管の内面の表面粗さ測定、及び溶出試験を行った。さらに溶出試験では、実施例1,2の製造元とは異なるメーカでの溶出性能の違いを比較するため、スチレン系エラストマーを主成分とする可撓管の試料を実施例3として準備し、また、比較例2のグレードの違いによる溶出性能の違いを比較するため、オレフィン系エラストマーを主成分とする可撓管の試料を比較例3として追加で準備した。
実施例1,2及び比較例1,2の各試料について、算術平均粗さRa、最大高さRz、及び算術平均粗さRaに対する最大高さRzの比Rz/Raをそれぞれ測定した。その測定結果を下記表1に示す。なお、表面粗さ測定は、測定機器として小林研究所株式会社製の「Surfcorder SE500A」を使用し、ホース内面、ホース外面をそれぞれ長手方向に測定した。測定条件は、送り速さを0.5mm/秒とし、測定長さを2.000mmとした。
実施例1,2,3及び比較例1,2,3の各試料について、材質試験、溶出試験、蒸発残留物試験を行った。これらの各試験は、「食品、添加物等の規格基準(令和2年12月4日厚生労働省告示第380号)」の試験方法に準拠して行った。各試験の結果を下記表2に示す。
4 ニップル
6 ダイス
Claims (5)
- 内径における引き落とし率が0.8~1.1となるように押出成形により形成されたスチレン系エラストマーを主成分とする可撓管であって、
前記可撓管の内面の算術平均粗さRaが1.5μm以下であり、かつ、前記可撓管の内面の最大高さRzが7μm以下であり、
前記可撓管を用いて、食品、添加物等の規格基準(令和2年12月4日厚生労働省告示第380号)の試験方法に準拠して測定したヘプタンを除く蒸発残留物量が30μg/ml以下であり、
前記可撓管の内面における前記算術平均粗さRaに対する前記最大高さRzの比Rz/Raが3.9以下である、
可撓管。 - 前記可撓管の外面の表面粗さRaが20μm以下の範囲内である、請求項1に記載の可撓管。
- 前記可撓管のショアA硬度が50~75度である、請求項1又は2に記載の可撓管。
- 前記可撓管の伸び率が700%~1000%である、請求項1~3のいずれか1項に記載の可撓管。
- ローラポンプ用の可撓管である、請求項1~4のいずれか1項に記載の可撓管。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021205032A JP7401927B2 (ja) | 2021-12-17 | 2021-12-17 | 可撓管 |
TW111134659A TW202326017A (zh) | 2021-12-17 | 2022-09-14 | 可撓管 |
PCT/JP2022/040627 WO2023112525A1 (ja) | 2021-12-17 | 2022-10-31 | 可撓管 |
JP2023049219A JP2023090707A (ja) | 2021-12-17 | 2023-03-27 | 可撓管 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021205032A JP7401927B2 (ja) | 2021-12-17 | 2021-12-17 | 可撓管 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023049219A Division JP2023090707A (ja) | 2021-12-17 | 2023-03-27 | 可撓管 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2023090196A JP2023090196A (ja) | 2023-06-29 |
JP7401927B2 true JP7401927B2 (ja) | 2023-12-20 |
Family
ID=86774019
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021205032A Active JP7401927B2 (ja) | 2021-12-17 | 2021-12-17 | 可撓管 |
JP2023049219A Pending JP2023090707A (ja) | 2021-12-17 | 2023-03-27 | 可撓管 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023049219A Pending JP2023090707A (ja) | 2021-12-17 | 2023-03-27 | 可撓管 |
Country Status (3)
Country | Link |
---|---|
JP (2) | JP7401927B2 (ja) |
TW (1) | TW202326017A (ja) |
WO (1) | WO2023112525A1 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005046184A (ja) | 2003-07-29 | 2005-02-24 | Terumo Corp | 拡張体付カテーテル |
JP2005299734A (ja) | 2004-04-07 | 2005-10-27 | Asahi Organic Chem Ind Co Ltd | 樹脂製配管部材 |
JP2007217580A (ja) | 2006-02-17 | 2007-08-30 | Mitsui Chemicals Inc | 軟質プロピレン重合体からなる中空成形体、積層中空成形体 |
JP2011108655A (ja) | 2010-12-13 | 2011-06-02 | Teito Rubber Ltd | 燃料電池用ホース |
US20140037880A1 (en) | 2012-07-26 | 2014-02-06 | Sridhar Krishnamurthi Siddhamalli | Multilayer flexible tube |
JP2018044656A (ja) | 2016-09-16 | 2018-03-22 | 旭化成株式会社 | 構造体 |
WO2021033539A1 (ja) | 2019-08-21 | 2021-02-25 | ダイキン工業株式会社 | チューブ、チューブの製造方法、および、チューブの保管方法 |
-
2021
- 2021-12-17 JP JP2021205032A patent/JP7401927B2/ja active Active
-
2022
- 2022-09-14 TW TW111134659A patent/TW202326017A/zh unknown
- 2022-10-31 WO PCT/JP2022/040627 patent/WO2023112525A1/ja unknown
-
2023
- 2023-03-27 JP JP2023049219A patent/JP2023090707A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005046184A (ja) | 2003-07-29 | 2005-02-24 | Terumo Corp | 拡張体付カテーテル |
JP2005299734A (ja) | 2004-04-07 | 2005-10-27 | Asahi Organic Chem Ind Co Ltd | 樹脂製配管部材 |
JP2007217580A (ja) | 2006-02-17 | 2007-08-30 | Mitsui Chemicals Inc | 軟質プロピレン重合体からなる中空成形体、積層中空成形体 |
JP2011108655A (ja) | 2010-12-13 | 2011-06-02 | Teito Rubber Ltd | 燃料電池用ホース |
US20140037880A1 (en) | 2012-07-26 | 2014-02-06 | Sridhar Krishnamurthi Siddhamalli | Multilayer flexible tube |
JP2018044656A (ja) | 2016-09-16 | 2018-03-22 | 旭化成株式会社 | 構造体 |
WO2021033539A1 (ja) | 2019-08-21 | 2021-02-25 | ダイキン工業株式会社 | チューブ、チューブの製造方法、および、チューブの保管方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2023090707A (ja) | 2023-06-29 |
JP2023090196A (ja) | 2023-06-29 |
WO2023112525A1 (ja) | 2023-06-22 |
TW202326017A (zh) | 2023-07-01 |
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