IT1103894B - Procedimento per la produzione di materiali termoplastici espansi - Google Patents
Procedimento per la produzione di materiali termoplastici espansiInfo
- Publication number
- IT1103894B IT1103894B IT48412/78A IT4841278A IT1103894B IT 1103894 B IT1103894 B IT 1103894B IT 48412/78 A IT48412/78 A IT 48412/78A IT 4841278 A IT4841278 A IT 4841278A IT 1103894 B IT1103894 B IT 1103894B
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- production
- thermoplastic materials
- expanded thermoplastic
- expanded
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L43/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Compositions of derivatives of such polymers
- C08L43/04—Homopolymers or copolymers of monomers containing silicon
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
-
- 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
-
- 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
- B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
-
- 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
- Y10S264/18—Cross-linking a thermoplastic linear foam during molding
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772713181 DE2713181A1 (de) | 1977-03-25 | 1977-03-25 | Verfahren zur herstellung geschaeumter materialien |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7848412A0 IT7848412A0 (it) | 1978-03-13 |
IT1103894B true IT1103894B (it) | 1985-10-14 |
Family
ID=6004648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT48412/78A IT1103894B (it) | 1977-03-25 | 1978-03-13 | Procedimento per la produzione di materiali termoplastici espansi |
Country Status (8)
Country | Link |
---|---|
US (1) | US4333898A (it) |
BE (1) | BE865250A (it) |
DE (1) | DE2713181A1 (it) |
DK (1) | DK59178A (it) |
FR (1) | FR2384612A1 (it) |
GB (1) | GB1578318A (it) |
IT (1) | IT1103894B (it) |
SE (1) | SE424838B (it) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3001159C2 (de) * | 1980-01-15 | 1987-03-05 | kabelmetal electro GmbH, 3000 Hannover | Verfahren zum Herstellen schrumpffähiger Formteile |
JPS5861129A (ja) * | 1981-10-08 | 1983-04-12 | Sekisui Plastics Co Ltd | 発泡体の製造法 |
US4436679A (en) | 1981-11-09 | 1984-03-13 | Maryland Cup Corporation | Method and apparatus for generating foamed thermoplastic materials |
FI70916C (fi) * | 1983-11-04 | 1986-10-27 | Neste Oy | Med vatten uppskummat och med silan tvaerbundet polyolefinskumoch foerfarande foer framstaellning av detta |
US4595546A (en) * | 1983-11-14 | 1986-06-17 | Crompton & Knowles Corporation | Manufacture of elongated extruded cross-linked products |
US4694025A (en) * | 1984-11-16 | 1987-09-15 | The Dow Chemical Company | Alcohol control of lightly crosslinked foamed polymer production |
US4714716A (en) * | 1984-11-16 | 1987-12-22 | The Dow Chemical Company | Lightly crosslinked linear olefinic polymer foams and process for making |
US4762860A (en) * | 1984-11-16 | 1988-08-09 | The Dow Chemical Company | Alcohol control of lightly crosslinked foamed polymer production |
US4734440A (en) * | 1984-12-21 | 1988-03-29 | Union Carbide Corporation | Foamable compositions |
US4867923A (en) * | 1984-12-21 | 1989-09-19 | Union Carbide Corporation | Process of producing foamed products |
US4581383A (en) * | 1985-04-19 | 1986-04-08 | The Dow Chemical Company | Lightly crosslinked linear olefinic polymer foam blends and process for making |
US4554293A (en) * | 1985-04-19 | 1985-11-19 | The Dow Chemical Company | Lightly crosslinked linear olefinic polymer foam blends and process for making |
US4870111A (en) * | 1987-02-24 | 1989-09-26 | Astro-Valcour, Incorporated | Moldable silane-crosslinked polyolefin foam beads |
US5026736A (en) * | 1987-02-24 | 1991-06-25 | Astro-Valcour, Inc. | Moldable shrunken thermoplastic polymer foam beads |
US4702868A (en) * | 1987-02-24 | 1987-10-27 | Valcour Incorporated | Moldable silane-crosslinked polyolefin foam beads |
US5160674A (en) * | 1987-07-29 | 1992-11-03 | Massachusetts Institute Of Technology | Microcellular foams of semi-crystaline polymeric materials |
US5728406A (en) * | 1989-07-11 | 1998-03-17 | Amesbury Group, Inc. | Apparatus for extruding a low density thermoplastic foam |
CA2102227C (en) * | 1991-04-23 | 1996-04-16 | Alan J. Demello | Process for extruding low density foam using water blowing agent |
GB2259270B (en) * | 1991-09-07 | 1995-08-16 | Extrudit Ltd | Plastics piping |
JPH06200066A (ja) * | 1992-12-28 | 1994-07-19 | Toray Dow Corning Silicone Co Ltd | ガスケット発泡体の形成方法 |
US5411683B1 (en) * | 1993-08-20 | 2000-08-01 | Sweetheart Cup Co | Method for making thermoplastic foam with combined 1,1-difluoroethane and co2 blowing agent |
US5932659A (en) | 1994-09-19 | 1999-08-03 | Sentinel Products Corp. | Polymer blend |
US5929129A (en) * | 1994-09-19 | 1999-07-27 | Sentinel Products Corp. | Crosslinked foamable compositions of silane-grafted, essentially linear polyolefins blended with polypropylene |
US5883144A (en) * | 1994-09-19 | 1999-03-16 | Sentinel Products Corp. | Silane-grafted materials for solid and foam applications |
KR960010734A (ko) * | 1994-09-19 | 1996-04-20 | 존 디. 밤바라 | 필수 선형 폴리올레핀의 교차- 결합된 발포 구조 및 그 제조방법 |
US5605937A (en) * | 1994-09-30 | 1997-02-25 | Knaus; Dennis A. | Moldable thermoplastic polymer foam beads |
US5622663A (en) * | 1995-06-14 | 1997-04-22 | Dow Corning Corporation | Method for preparing a continuous foam profile containing a filamentary core |
DE69608813T2 (de) * | 1995-09-29 | 2000-10-12 | The Dow Chemical Co., Midland | Vernetzte polyolefinschäume und verfahren zu ihrer herstellung |
US5879723A (en) * | 1996-03-26 | 1999-03-09 | United States Brass Corporation | Automated tube reforming apparatus |
CA2203595A1 (en) | 1996-04-26 | 1997-10-26 | Robert F. Hurley | Cross-linked polyolefin tape |
US5844009A (en) * | 1996-04-26 | 1998-12-01 | Sentinel Products Corp. | Cross-linked low-density polymer foam |
US6361842B1 (en) | 1996-05-30 | 2002-03-26 | United States Brass Corporation | Reformed crosslinked polyethylene articles |
US5756023A (en) * | 1996-05-30 | 1998-05-26 | United States Brass Corporation | Method of producing reformed crosslinked polyethylene articles |
US5876813A (en) | 1996-07-09 | 1999-03-02 | Senitnel Products Corp | Laminated foam structures with enhanced properties |
US5882776A (en) * | 1996-07-09 | 1999-03-16 | Sentinel Products Corp. | Laminated foam structures with enhanced properties |
US5938878A (en) | 1996-08-16 | 1999-08-17 | Sentinel Products Corp. | Polymer structures with enhanced properties |
US5776386A (en) * | 1996-12-24 | 1998-07-07 | United States Brass Corporation | Scrap-based method of molding plastic articles |
AR022136A1 (es) * | 1998-12-28 | 2002-09-04 | Kimberly Clark Co | Un material de filamento o pelicula de elastomero celular con capacidad para respirar con celdas creadas en el mismo por medio de un agente de apertura de celdas y el metodo para producir dicho material |
US6855424B1 (en) | 1998-12-28 | 2005-02-15 | Kinberly-Clark Worldwide, Inc. | Breathable composite elastic material having a cellular elastomeric film layer and method of making same |
US6124370A (en) * | 1999-06-14 | 2000-09-26 | The Dow Chemical Company | Crosslinked polyolefinic foams with enhanced physical properties and a dual cure process of producing such foams |
US6284178B1 (en) | 1999-06-18 | 2001-09-04 | United States Brass Corporation | Methods of producing crosslinked polyethylene products |
US6124770A (en) * | 1999-10-22 | 2000-09-26 | Nippon Unicar Company Limited | Expandable resin composition |
ATE413266T1 (de) * | 2001-03-12 | 2008-11-15 | Gen Cable Technologies Corp | Verfahren zur herstellung von zusammensetzungen mit thermoplastischen und aushärtbaren polymeren und durch solche verfahren hergestellte artikel |
US20040096626A1 (en) * | 2002-11-14 | 2004-05-20 | Epoli-Espumas De Polietileno Sa | Layered structures with enhanced properties |
DE102005059366A1 (de) * | 2005-12-13 | 2007-06-14 | Gitschner, Hans Walter, Dr.-Ing. | Verfahren und Anordnungen zur Fertigung von silanvernetzten Polyethylenadern für Energiekabel |
WO2008070022A1 (en) * | 2006-12-04 | 2008-06-12 | Ingenia Polymers Inc. | Cross-linked polyolefin foam |
EP3182418A1 (en) * | 2015-12-18 | 2017-06-21 | Borealis AG | A cable jacket composition, cable jacket and a cable, e.g. a power cable or a communication cable |
EP3617253A1 (en) * | 2018-08-31 | 2020-03-04 | Unipex Oy | A method for crosslinking polyethylene |
WO2020076409A2 (en) * | 2018-10-09 | 2020-04-16 | Florida Atlantic University Board Of Trustees | Chemical reaction activated expanding material for underwater deployable structures |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2948665A (en) * | 1956-10-18 | 1960-08-09 | Dow Chemical Co | Process for making cellular polyethylene articles |
US2960482A (en) * | 1957-05-15 | 1960-11-15 | Western Electric Co | Method of making plastic articles |
US3017371A (en) * | 1958-10-09 | 1962-01-16 | Monsanto Chemicals | Expandable composition consisting essentially of polyolefin, metal soap and p, p'-oxybis (benzene sulfonyl hydrazide), process for preparing same and wire coated with same |
BE794718Q (fr) * | 1968-12-20 | 1973-05-16 | Dow Corning Ltd | Procede de reticulation d'olefines |
-
1977
- 1977-03-25 DE DE19772713181 patent/DE2713181A1/de not_active Withdrawn
-
1978
- 1978-02-09 DK DK59178A patent/DK59178A/da not_active Application Discontinuation
- 1978-02-27 GB GB7700/78A patent/GB1578318A/en not_active Expired
- 1978-03-13 IT IT48412/78A patent/IT1103894B/it active
- 1978-03-17 FR FR7807822A patent/FR2384612A1/fr not_active Withdrawn
- 1978-03-23 BE BE186222A patent/BE865250A/xx unknown
- 1978-03-23 SE SE7803398A patent/SE424838B/sv unknown
- 1978-10-26 US US05/955,101 patent/US4333898A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4333898A (en) | 1982-06-08 |
GB1578318A (en) | 1980-11-05 |
BE865250A (fr) | 1978-09-25 |
FR2384612A1 (fr) | 1978-10-20 |
IT7848412A0 (it) | 1978-03-13 |
DE2713181A1 (de) | 1978-10-05 |
SE424838B (sv) | 1982-08-16 |
DK59178A (da) | 1978-09-26 |
SE7803398L (sv) | 1978-09-26 |
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