BE590218A - - Google Patents
Info
- Publication number
- BE590218A BE590218A BE590218DA BE590218A BE 590218 A BE590218 A BE 590218A BE 590218D A BE590218D A BE 590218DA BE 590218 A BE590218 A BE 590218A
- Authority
- BE
- Belgium
- Prior art keywords
- diaphragm
- tube
- segments
- opening
- sheet
- Prior art date
Links
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 208000001840 Dandruff Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1492459A GB908169A (en) | 1959-05-01 | 1959-05-01 | Improvements in or relating to the manufacture of films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE590218A true BE590218A (en, 2012) |
Family
ID=37057292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE590218D BE590218A (en, 2012) | 1959-05-01 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE590218A (en, 2012) |
| FR (1) | FR1255809A (en, 2012) |
| GB (1) | GB908169A (en, 2012) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235632A (en) * | 1962-04-18 | 1966-02-15 | Dow Chemical Co | Process for producing biaxially oriented thermoplastic tubular film |
| US3377413A (en) * | 1964-05-15 | 1968-04-09 | Svenska Metallverken Ab | Process in the extrusion of films of thermoplastic material in tubular form and an arrangement for carrying out the process |
-
0
- BE BE590218D patent/BE590218A/fr unknown
-
1959
- 1959-05-01 GB GB1492459A patent/GB908169A/en not_active Expired
-
1960
- 1960-04-30 FR FR825875A patent/FR1255809A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1255809A (fr) | 1961-03-10 |
| GB908169A (en) | 1962-10-17 |
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