IT948674B - Procedimento e dispositivo per la produzione di semilavorati in materiale sintetico parzialmente esapnso - Google Patents
Procedimento e dispositivo per la produzione di semilavorati in materiale sintetico parzialmente esapnsoInfo
- Publication number
- IT948674B IT948674B IT48462/72A IT4846272A IT948674B IT 948674 B IT948674 B IT 948674B IT 48462/72 A IT48462/72 A IT 48462/72A IT 4846272 A IT4846272 A IT 4846272A IT 948674 B IT948674 B IT 948674B
- Authority
- IT
- Italy
- Prior art keywords
- exapped
- semi
- procedure
- production
- synthetic material
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
-
- 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
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
-
- 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
- B29C48/50—Details of extruders
- B29C48/74—Bypassing means, i.e. part of the molten material being diverted into downstream stages of the extruder
- B29C48/745—Bypassing means, i.e. part of the molten material being diverted into downstream stages of the extruder for plasticising or homogenising devices
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- 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
-
- 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
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/043—Skinned foam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/05—Use of one or more blowing agents together
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2108936A DE2108936C3 (de) | 1971-02-25 | 1971-02-25 | Verfahren und Vorrichtung zum Herstellen von Kunststoffhalbzeug mit Schaumstoffkern und ungeschäumtem Mantel |
Publications (1)
Publication Number | Publication Date |
---|---|
IT948674B true IT948674B (it) | 1973-06-11 |
Family
ID=5799786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT48462/72A IT948674B (it) | 1971-02-25 | 1972-02-21 | Procedimento e dispositivo per la produzione di semilavorati in materiale sintetico parzialmente esapnso |
Country Status (5)
Country | Link |
---|---|
US (1) | US3782870A (it) |
DE (1) | DE2108936C3 (it) |
FR (1) | FR2126290B1 (it) |
GB (1) | GB1360310A (it) |
IT (1) | IT948674B (it) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3857914A (en) * | 1968-10-21 | 1974-12-31 | Asahi Chemical Ind | Method for extruding a foamed, molded article |
US3956438A (en) * | 1971-02-25 | 1976-05-11 | Barmag Barmer Maschinenfabrik Aktiengesellschaft | Process for extruding a partially foamed thermoplastic product |
US3890416A (en) * | 1972-05-05 | 1975-06-17 | Wacker Chemie Gmbh | Method for producing a cavity or a zone of very low density in the interior of extruded profiles of foamable thermoplastics |
US3972970A (en) * | 1974-02-07 | 1976-08-03 | Western Electric Company, Inc. | Method for extruding cellular thermoplastic products |
CA1092311A (en) * | 1975-09-04 | 1980-12-30 | John C. Miller | Extrusion of cellular thermoplastic material |
GB1601698A (en) * | 1977-08-20 | 1981-11-04 | Gen Eng Radcliffe | Extrusion method and apparatus therefor |
FI65683C (fi) * | 1979-05-11 | 1984-06-11 | Nokia Oy Ab | Metod och anordning foer foam-skin isolering av telefonkabelledare |
DE3001159A1 (de) * | 1980-01-15 | 1981-07-16 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Schrumpfformteil aus extrudierbarem geschaeumten werkstoff |
US5728406A (en) * | 1989-07-11 | 1998-03-17 | Amesbury Group, Inc. | Apparatus for extruding a low density thermoplastic foam |
US5215691A (en) * | 1990-09-05 | 1993-06-01 | The Dow Chemical Company | Method of forming a coextruded foam composite |
US6074578A (en) * | 1995-02-23 | 2000-06-13 | Csongor; Desider G. | Barrel wall conduit arrangements for a plastic processing screw machine |
US6432337B1 (en) * | 1998-11-09 | 2002-08-13 | James D. Fogarty | Thermoplastic foam extrusion |
US6113375A (en) * | 1998-11-09 | 2000-09-05 | Fogarty; James | Thermoplastic foam extrusion assembly |
US6511217B1 (en) * | 2000-11-03 | 2003-01-28 | General Electric Company | Method and system to compound silicone compositions |
US6623674B1 (en) * | 2000-11-16 | 2003-09-23 | 3M Innovative Properties Company | Reduced density foam articles and process for making |
US6743006B2 (en) | 2001-11-09 | 2004-06-01 | The Procter & Gamble Company | Die for extruding flowable materials and having a static mixer therein |
US20030232210A1 (en) * | 2002-06-18 | 2003-12-18 | 3M Innovative Properties Company | Ink-receptive foam article |
US7820282B2 (en) * | 2003-04-10 | 2010-10-26 | 3M Innovative Properties Company | Foam security substrate |
US7655296B2 (en) | 2003-04-10 | 2010-02-02 | 3M Innovative Properties Company | Ink-receptive foam article |
WO2007106390A2 (en) | 2006-03-10 | 2007-09-20 | Amesbury Group, Inc | Apparatus and method for manufacturing reinforced weatherstrip, and such a weatherstrip |
TW200821125A (en) * | 2006-08-23 | 2008-05-16 | Sulzer Chemtech Ag | A metering device |
DE102007050640B4 (de) * | 2007-10-23 | 2015-11-12 | Automatik Plastics Machinery Gmbh | Verfahren und Vorrichtung zur Herstellung von Kunststoffgranulat mit in diesem enthaltenen Feststoffteilchen |
US10329834B2 (en) | 2015-02-13 | 2019-06-25 | Amesbury Group, Inc. | Low compression-force TPE weatherseals |
DE102015219453A1 (de) | 2015-10-08 | 2017-04-13 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Herstellen eines schaumgefüllten Hohlprofils |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA700412A (en) * | 1964-12-22 | Berner Erling | Device for producing cellular bodies of thermoplastics | |
US484777A (en) * | 1892-10-25 | Machine for shaping and molding plastic materials | ||
US3189941A (en) * | 1962-07-19 | 1965-06-22 | Reifenhauser K G | Apparatus for continuous extrusion of composite bodies of plastic material |
BE638534A (it) * | 1962-10-11 | 1900-01-01 | ||
US3256562A (en) * | 1964-08-10 | 1966-06-21 | Western Electric Co | Extruding system |
US3266093A (en) * | 1964-09-14 | 1966-08-16 | Nat Distillers Chem Corp | Apparatus for producing laminated products |
-
1971
- 1971-02-25 DE DE2108936A patent/DE2108936C3/de not_active Expired
-
1972
- 1972-02-21 IT IT48462/72A patent/IT948674B/it active
- 1972-02-22 FR FR7205938A patent/FR2126290B1/fr not_active Expired
- 1972-02-24 US US00229074A patent/US3782870A/en not_active Expired - Lifetime
- 1972-02-25 GB GB885572A patent/GB1360310A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2108936B2 (de) | 1978-07-13 |
FR2126290B1 (it) | 1975-08-29 |
DE2108936A1 (de) | 1972-09-07 |
FR2126290A1 (it) | 1972-10-06 |
US3782870A (en) | 1974-01-01 |
DE2108936C3 (de) | 1979-12-13 |
GB1360310A (en) | 1974-07-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT948674B (it) | Procedimento e dispositivo per la produzione di semilavorati in materiale sintetico parzialmente esapnso | |
IT958926B (it) | Articolo abrasivo e procedimento per la sua fabbricazione | |
IT939892B (it) | Materiale catarifrangente e pro cedimento per la sua fabbricazione | |
IT971123B (it) | Articolo di materiale plastico metodo ed apparato per la sua formatura per soffiaggio | |
AR202269A1 (es) | Procedimiento para procesar material termoplastico inorganico | |
IT968887B (it) | Materiale e procedimento fotografici | |
IT990405B (it) | Dispositivo e procedimento conti nuo per la produzione di oggetti sagomati in materiale termpoplasti co | |
IT963382B (it) | Articoli di materiale plastico antistatico e procedimento per renderlo tale | |
IT957604B (it) | Procedimento e dispositivo per migliorare la saldabilita di og getti di materiale sintetico espanso e prodotto ottenuto | |
IT950650B (it) | Perfezionamento nei tamponi chirurgici e procedimento di produzione | |
ZA721916B (en) | Structured synthetic web material and method for the production thereof | |
IT958029B (it) | Agenti porofori benzossazinici in particolare per la produzione di espansi termoplastici | |
IT1007516B (it) | Procedimento e dispositivo per la produzione di un picculo contenito re tubolare in materiale sintetico | |
IL33421A (en) | Laminated material and process for the production thereof | |
IT960280B (it) | Procedimento ed apparecchio per la produzione di pannelli di materiale microporoso | |
IT973621B (it) | Sacco di materiale sintetico e procedimento per la sua produzio ne | |
AR202893A1 (es) | Aparato para empaquetar material lineal | |
IT941551B (it) | Procedimento per la formatura di articoli di materiale termoplastico | |
IT959033B (it) | Materiale abrasivo e procedimento per la sua preparazione | |
IT952069B (it) | Procedimento per la produzione di materiale retroriflettente in for ma di perline sferiche e prodotto ottenuto | |
IT956048B (it) | Dispositivo per la produzione di bottiglie in materiale termopla stico | |
IL36624A0 (en) | New polymeric materials and their production | |
IT975277B (it) | Procedimento ed impianto per la fabbricazione di oggetti stampati in materiale agglomerato | |
IT953938B (it) | Procedimento ed apparecchio per la fabbricazione di corpi di materie plastiche sintetiche | |
IT944733B (it) | Procedimento per la fabbricazione di strutture composite in materia le plastico e prodotto ottenuto |