IT1162648B - Procedimento e apparecchio per la produzione di corpi sagomati costituiti da polietilene bassa pressione ad alto peso molecolare - Google Patents
Procedimento e apparecchio per la produzione di corpi sagomati costituiti da polietilene bassa pressione ad alto peso molecolareInfo
- Publication number
- IT1162648B IT1162648B IT49615/79A IT4961579A IT1162648B IT 1162648 B IT1162648 B IT 1162648B IT 49615/79 A IT49615/79 A IT 49615/79A IT 4961579 A IT4961579 A IT 4961579A IT 1162648 B IT1162648 B IT 1162648B
- Authority
- IT
- Italy
- Prior art keywords
- production
- molecular weight
- low pressure
- high molecular
- shaped bodies
- Prior art date
Links
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (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 |
---|---|---|---|
DE2829232A DE2829232C2 (de) | 1978-07-03 | 1978-07-03 | Verfahren zur Herstellung von Formkörpern aus hochmolekularem Niederdruckpolyäthylen |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7949615A0 IT7949615A0 (it) | 1979-07-02 |
IT1162648B true IT1162648B (it) | 1987-04-01 |
Family
ID=6043454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49615/79A IT1162648B (it) | 1978-07-03 | 1979-07-02 | Procedimento e apparecchio per la produzione di corpi sagomati costituiti da polietilene bassa pressione ad alto peso molecolare |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT380656B (it) |
CH (1) | CH642906A5 (it) |
DE (1) | DE2829232C2 (it) |
FR (1) | FR2430305A1 (it) |
GB (1) | GB2024701B (it) |
IT (1) | IT1162648B (it) |
NL (1) | NL7808330A (it) |
YU (1) | YU40223B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1210918A (en) * | 1983-06-28 | 1986-09-09 | Arakalgud V. Ramamurthy | Process for substantially eliminating surface melt fracture when extruding ethylene polymers |
DE3401669A1 (de) * | 1984-01-19 | 1985-08-01 | Plastik-Maschinenbau Gmbh & Co Kg Entwicklungsgesellschaft, 5489 Kelberg | Gleitbauteil in form eines abschnittes aus einem kunststoffprofil aus polyaethylen |
DD230826A1 (de) * | 1984-03-05 | 1985-12-11 | Univ Dresden Tech | Verfahren und extrusionsvorrichtung zur formung fliessfaehiger massen |
DE3418259C2 (de) * | 1984-05-17 | 1986-07-10 | Plastik-Maschinenbau Gmbh & Co Kg Entwicklungsgesellschaft, 5489 Kelberg | Verfahren und Anlage zur Weiterverarbeitung von Hausmüll |
DE3828662A1 (de) * | 1988-08-24 | 1990-03-08 | Priesemuth W | Vorrichtung zur herstellung von kunststoffregenerat |
DE9014506U1 (de) * | 1990-10-19 | 1991-01-10 | WK Worek Kunststofftechnik GmbH, 91325 Adelsdorf | Vorrichtung zum Herstellen von Schläuchen oder Rohren aus PTFE |
DE4212335C2 (de) * | 1992-04-13 | 1995-05-18 | Marijan Bradic | Extrusionsvorrichtung zur Herstellung von Platten |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883631A (en) * | 1966-11-25 | 1975-05-13 | Impact Plastics Inc | Method and means for making high molecular weight polyethylene sheets |
US3483597A (en) * | 1966-12-23 | 1969-12-16 | Allied Chem | Ram extrusion of granular resins |
CA930116A (en) * | 1967-02-01 | 1973-07-17 | E. Murray Coyt | Reinforced extruder for high molecular weight polyethylene |
US3887319A (en) * | 1972-12-08 | 1975-06-03 | Polymer Corp | Apparatus for the extrusion of ultra high molecular weight polymeric resins |
DE2907523C2 (de) * | 1979-02-26 | 1985-01-10 | Salem Furnace Co.,, Carnegie, Pa. | Verfahren und Vorrichtung zum Wärmebehandeln von Werkstoffen auf einem Drehherd |
-
1978
- 1978-07-03 DE DE2829232A patent/DE2829232C2/de not_active Expired
- 1978-08-09 NL NL7808330A patent/NL7808330A/nl active Search and Examination
-
1979
- 1979-06-25 YU YU1492/79A patent/YU40223B/xx unknown
- 1979-06-26 FR FR7916432A patent/FR2430305A1/fr active Granted
- 1979-06-26 AT AT0445779A patent/AT380656B/de not_active IP Right Cessation
- 1979-06-28 GB GB7922466A patent/GB2024701B/en not_active Expired
- 1979-06-29 CH CH610779A patent/CH642906A5/de not_active IP Right Cessation
- 1979-07-02 IT IT49615/79A patent/IT1162648B/it active
Also Published As
Publication number | Publication date |
---|---|
AT380656B (de) | 1986-06-25 |
ATA445779A (de) | 1985-11-15 |
YU40223B (en) | 1985-08-31 |
FR2430305B1 (it) | 1983-08-12 |
DE2829232C2 (de) | 1983-10-20 |
NL7808330A (nl) | 1980-01-07 |
IT7949615A0 (it) | 1979-07-02 |
CH642906A5 (de) | 1984-05-15 |
YU149279A (en) | 1983-01-21 |
GB2024701B (en) | 1982-08-25 |
GB2024701A (en) | 1980-01-16 |
DE2829232A1 (de) | 1980-01-17 |
FR2430305A1 (fr) | 1980-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT7948390A0 (it) | Procedimento per la produzione di polietilentereftalato ad elevato peso molecolare | |
IT1128104B (it) | Procedimento per la produzione di poliesteri ad alto peso molecolare e ad alto grado di purezza | |
BE880584A (fr) | Nouveaux derives d'imidazole, leur procede de production et composition pharmaceutique les contenant | |
FI932850A0 (fi) | Process foer kontinuerlig framstaellning av hoegmodulsprodukter av hoegmolekylviktsplaster | |
IT8024262A0 (it) | Composizione di polietilene eprocedimento per la sua produzione. | |
FR2320272A1 (fr) | Appareil et procede pour la production de tube en verre composite | |
IT1133060B (it) | Composizione induribile con luce ultravioletta per la produzione di rivestimenti di bassa lucentezza | |
IT7847711A0 (it) | Procedimento per la produzione di elastomeri di policarbonato segmentati ad alto peso molecolare | |
FR2523973B1 (fr) | Nouveaux derives de cephalosporine, leur procede de production et composition pharmaceutique les contenant | |
BE837265A (fr) | Nouveaux acides delta2,3 - 1,4 - morpholino - 2 - carboxyliques substitues, leur procede de synthese et medicament les contenant | |
BE874135A (fr) | Nouveaux analogues de prostacycline, leur procede de production et medicament les contenant | |
FR2278706A1 (fr) | Procede de production d'alginates d'alcylene glycol | |
IT1162648B (it) | Procedimento e apparecchio per la produzione di corpi sagomati costituiti da polietilene bassa pressione ad alto peso molecolare | |
IT967742B (it) | Procedimento per la preparazione di poliisocianati ad alto peso molecolare | |
BE761924A (fr) | Procede de preparation de sulfates surfactifs d'ether et de polyether | |
BE866833A (fr) | Nouveaux derives d'ethers d'azolyle, leur procede de production et leur application comme fongicides | |
BE884653A (fr) | Nouveaux composes de purine, leur procede de production et composition pharmaceutique les contenant | |
FR2309493A1 (fr) | Substances pyrotechniques pulverulentes ameliorees et leur procede d'obtention | |
IT1144004B (it) | Esteri di colofonia modificati e procedimento per la loro produzione | |
BE846605A (fr) | Procede de production d'ethers cellulosiques gonflables | |
ATE13027T1 (de) | Formpulver aus polyaethylen mit einem sehr hohen molekulargewicht, verfahren fuer dessen herstellung. | |
BE878230A (fr) | Nouveaux derives d'imidazole, leur procede de production et composition pharmaceutique les contenant | |
BE876297A (fr) | Nouveaux derives de 4-amino-2-piperidino-quinazoline, leur procede de production et medicament les contenant | |
FR2504131B1 (fr) | Procede de production de dithioacides organiques et leur application | |
IT1016831B (it) | Procedimento per la produzione di polveri di acciaio atomizzato di densita apparente elevata |