GB1231535A - - Google Patents
Info
- Publication number
- GB1231535A GB1231535A GB1231535DA GB1231535A GB 1231535 A GB1231535 A GB 1231535A GB 1231535D A GB1231535D A GB 1231535DA GB 1231535 A GB1231535 A GB 1231535A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zones
- zone
- screws
- injectors
- march
- 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
- 239000011347 resin Substances 0.000 abstract 4
- 229920005989 resin Polymers 0.000 abstract 4
- 239000004088 foaming agent Substances 0.000 abstract 3
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 abstract 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract 3
- 239000002667 nucleating agent Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- -1 polyethylene Polymers 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 2
- 229920001169 thermoplastic Polymers 0.000 abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 abstract 2
- 239000004338 Dichlorodifluoromethane Substances 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 239000003570 air Substances 0.000 abstract 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 abstract 1
- 239000001273 butane Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 abstract 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 abstract 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000010006 flight Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 abstract 1
- 229940029284 trichlorofluoromethane Drugs 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT831699T | 1968-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1231535A true GB1231535A (enrdf_load_stackoverflow) | 1971-05-12 |
Family
ID=11319729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1231535D Expired GB1231535A (enrdf_load_stackoverflow) | 1968-03-23 | 1969-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1231535A (enrdf_load_stackoverflow) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4222729A (en) | 1978-02-23 | 1980-09-16 | Lavorazione Materie Plastiche L.M.P. S.P.A. | Screw extruder for thermoplastic synthetic foams |
| DE3029798A1 (de) * | 1979-08-06 | 1981-03-19 | Lavorazione Materie Plastiche L.M.P. S.p.A., Torino | Misch-kuehl-vorrichtung fuer das strangpressen thermoplastischer schaumstoffe |
| GB2233929A (en) * | 1989-06-28 | 1991-01-23 | Berstorff Gmbh Masch Hermann | A method and apparatus for extruding thermoplastic plastics material foamed by steam |
| WO1998051467A1 (en) * | 1997-05-09 | 1998-11-19 | B.C. Foam S.R.L. | A process for the production of expanded polyester, in particular pet |
| WO2001034687A1 (en) * | 1999-11-09 | 2001-05-17 | L.M.P. Impianti S.R.L. | A method for producing expanded polymeric materials and an extruder for carrying it out |
-
1969
- 1969-03-07 GB GB1231535D patent/GB1231535A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4222729A (en) | 1978-02-23 | 1980-09-16 | Lavorazione Materie Plastiche L.M.P. S.P.A. | Screw extruder for thermoplastic synthetic foams |
| DE3029798A1 (de) * | 1979-08-06 | 1981-03-19 | Lavorazione Materie Plastiche L.M.P. S.p.A., Torino | Misch-kuehl-vorrichtung fuer das strangpressen thermoplastischer schaumstoffe |
| GB2233929A (en) * | 1989-06-28 | 1991-01-23 | Berstorff Gmbh Masch Hermann | A method and apparatus for extruding thermoplastic plastics material foamed by steam |
| GB2233929B (en) * | 1989-06-28 | 1993-04-28 | Berstorff Gmbh Masch Hermann | A method and apparatus for extruding a thermoplastic plastics material foam |
| WO1998051467A1 (en) * | 1997-05-09 | 1998-11-19 | B.C. Foam S.R.L. | A process for the production of expanded polyester, in particular pet |
| AU734019B2 (en) * | 1997-05-09 | 2001-05-31 | B.C. Foam S.R.L. | A process for the production of expanded polyester, in particular pet |
| US6409948B1 (en) | 1997-05-09 | 2002-06-25 | B.C. Foam S.R.L. | Process and apparatus for the production of expanded polyester, in particular pet |
| RU2201344C2 (ru) * | 1997-05-09 | 2003-03-27 | Б.К. ФОАМ С.р.л. | Способ получения вспененного полиэфира, в частности пэтф |
| WO2001034687A1 (en) * | 1999-11-09 | 2001-05-17 | L.M.P. Impianti S.R.L. | A method for producing expanded polymeric materials and an extruder for carrying it out |
| JP2003513829A (ja) * | 1999-11-09 | 2003-04-15 | エル エンメ ピ イムピアンティ ソシエタ レスポンサビリタ リミタータ | 発泡ポリマー材料の製造方法及びその実施に用いられる押出機 |
| AU777984B2 (en) * | 1999-11-09 | 2004-11-11 | L.M.P. Impianti Srl | A method for producing expanded polymeric materials and an extruder for carrying it out |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |