JPS629408B2 - - Google Patents
Info
- Publication number
- JPS629408B2 JPS629408B2 JP51112212A JP11221276A JPS629408B2 JP S629408 B2 JPS629408 B2 JP S629408B2 JP 51112212 A JP51112212 A JP 51112212A JP 11221276 A JP11221276 A JP 11221276A JP S629408 B2 JPS629408 B2 JP S629408B2
- Authority
- JP
- Japan
- Prior art keywords
- foaming
- cold gas
- degree
- blowing
- extrudate
- 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
Links
- 238000005187 foaming Methods 0.000 claims description 17
- 229920000642 polymer Polymers 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 12
- -1 polyethylene Polymers 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 239000004088 foaming agent Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 23
- 239000006260 foam Substances 0.000 description 10
- 239000004604 Blowing Agent Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002667 nucleating agent Substances 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 description 1
- DDMOUSALMHHKOS-UHFFFAOYSA-N 1,2-dichloro-1,1,2,2-tetrafluoroethane Chemical compound FC(F)(Cl)C(F)(F)Cl DDMOUSALMHHKOS-UHFFFAOYSA-N 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 1
- 229940087091 dichlorotetrafluoroethane Drugs 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11221276A JPS5336572A (en) | 1976-09-17 | 1976-09-17 | Process for manufacture of high ratio expansion polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11221276A JPS5336572A (en) | 1976-09-17 | 1976-09-17 | Process for manufacture of high ratio expansion polymer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5336572A JPS5336572A (en) | 1978-04-04 |
| JPS629408B2 true JPS629408B2 (nl) | 1987-02-28 |
Family
ID=14581048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11221276A Granted JPS5336572A (en) | 1976-09-17 | 1976-09-17 | Process for manufacture of high ratio expansion polymer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5336572A (nl) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62165814A (ja) * | 1986-01-16 | 1987-07-22 | 三菱電線工業株式会社 | 高発泡絶縁電線の製造方法 |
| JP2887013B2 (ja) * | 1991-04-25 | 1999-04-26 | 三菱電機株式会社 | ３相交流出力変換器の並列運転制御装置 |
-
1976
- 1976-09-17 JP JP11221276A patent/JPS5336572A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5336572A (en) | 1978-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4146562A (en) | Extrusion coating method with polyolefin foam | |
| US4304713A (en) | Process for preparing a foamed perfluorocarbon dielectric coaxial cable | |
| US4308352A (en) | Process of extruding polysulfone foam | |
| US3426111A (en) | Method and apparatus for the production of foam plastic sheet | |
| US3461496A (en) | Apparatus for extruding a skin covered,foamed thermoplastic | |
| US4552708A (en) | Method for producing crosslinked foam | |
| US4071591A (en) | Method of manufacturing foamed thermoplastic resin profiles | |
| EP0445847A2 (en) | Preparation of polymer foam and product | |
| JPS629408B2 (nl) | ||
| JPS6052929B2 (ja) | 発泡ポリスチレンシ−トの製造方法 | |
| US3670059A (en) | Method of producing a skin-covered foamed thermoplastic | |
| JP2909630B2 (ja) | 高発泡体被覆電線の製法及び製造装置 | |
| JP3654697B2 (ja) | スキン層を有する熱可塑性樹脂発泡シートの製造方法 | |
| JPS635849Y2 (nl) | ||
| JPS5811044B2 (ja) | 高発泡体絶縁電線の製造方法 | |
| JPS6050130B2 (ja) | 積層シ−トの製造方法 | |
| JPS6119412B2 (nl) | ||
| JPS599334B2 (ja) | 管状熱可塑性合成樹脂発泡体並びにその製造方法 | |
| US5281119A (en) | Apparatus for the production of foamed polyolefin sheets | |
| JPS5811047B2 (ja) | 高発泡ポリオレフイン絶縁電線の製造方法 | |
| JPH065139A (ja) | 高発泡体絶縁電線の製造方法 | |
| JPH0616371B2 (ja) | 発泡絶縁電線の製造方法 | |
| JP2656821B2 (ja) | 無架橋ポリオレフィン系樹脂小径気泡構造の押出発泡体の製造方法と得られた発泡体 | |
| JPH04325223A (ja) | 高発泡押出被覆方法 | |
| JPS593873Y2 (ja) | 発泡ポリマ−製造用ヘッド |