CH609074A5 - Process for the manufacture of polyethylene foam - Google Patents
Process for the manufacture of polyethylene foamInfo
- Publication number
- CH609074A5 CH609074A5 CH1209675A CH1209675A CH609074A5 CH 609074 A5 CH609074 A5 CH 609074A5 CH 1209675 A CH1209675 A CH 1209675A CH 1209675 A CH1209675 A CH 1209675A CH 609074 A5 CH609074 A5 CH 609074A5
- Authority
- CH
- Switzerland
- Prior art keywords
- crosslinking
- manufacture
- extruder
- polyethylene foam
- resin
- Prior art date
Links
- 239000006260 foam Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000004698 Polyethylene Substances 0.000 title 1
- -1 polyethylene Polymers 0.000 title 1
- 229920000573 polyethylene Polymers 0.000 title 1
- 238000004132 cross linking Methods 0.000 abstract 3
- 239000004604 Blowing Agent Substances 0.000 abstract 1
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract 1
- 239000004703 cross-linked polyethylene Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000001451 organic peroxides Chemical class 0.000 abstract 1
- 150000002978 peroxides Chemical class 0.000 abstract 1
- 229920013716 polyethylene resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The crosslinking and the expansion of the polyethylene resin take place in the actual body of an extruder, before the extrusion; the mixture to be extruded comprising the resin, a blowing agent and an organic peroxide is first of all melted in the extruder and then diluted with the solvent before the crosslinking heat treatment is performed, the duration of which is at least equal to one half of the half-life and preferably of one to two half-lives of the peroxide employed, at the temperature chosen for the crosslinking. This process applies preferably to the manufacture of lightly crosslinked polyethylene foams of low density.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7431669A FR2285421A1 (en) | 1974-09-19 | 1974-09-19 | JOINT PROCESS FOR CROSS-LINKING, EXPANSION AND EXTRUSION OF POLYETHYLENE FOAM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH609074A5 true CH609074A5 (en) | 1979-02-15 |
Family
ID=9143246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1209675A CH609074A5 (en) | 1974-09-19 | 1975-09-18 | Process for the manufacture of polyethylene foam |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT346602B (en) |
| BE (1) | BE833641A (en) |
| BR (1) | BR7506035A (en) |
| CH (1) | CH609074A5 (en) |
| DE (1) | DE2541273A1 (en) |
| ES (1) | ES441110A1 (en) |
| FR (1) | FR2285421A1 (en) |
| GB (1) | GB1507328A (en) |
| IT (1) | IT1047417B (en) |
| NL (1) | NL7511129A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2134527B (en) * | 1983-02-04 | 1986-03-12 | Smith H R | Cross-linked foamed thermoplastics |
| US4714716A (en) * | 1984-11-16 | 1987-12-22 | The Dow Chemical Company | Lightly crosslinked linear olefinic polymer foams and process for making |
| US4605682A (en) * | 1985-02-04 | 1986-08-12 | The Dow Chemical Company | Lightly crosslinked polyethylene polystyrene blend foams and process for making |
-
1974
- 1974-09-19 FR FR7431669A patent/FR2285421A1/en active Granted
-
1975
- 1975-09-16 DE DE19752541273 patent/DE2541273A1/en not_active Ceased
- 1975-09-18 BR BR7506035A patent/BR7506035A/en unknown
- 1975-09-18 IT IT6933275A patent/IT1047417B/en active
- 1975-09-18 CH CH1209675A patent/CH609074A5/en not_active IP Right Cessation
- 1975-09-18 GB GB3839575A patent/GB1507328A/en not_active Expired
- 1975-09-18 AT AT717775A patent/AT346602B/en not_active IP Right Cessation
- 1975-09-19 BE BE160226A patent/BE833641A/en not_active IP Right Cessation
- 1975-09-19 ES ES441110A patent/ES441110A1/en not_active Expired
- 1975-09-19 NL NL7511129A patent/NL7511129A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2285421B1 (en) | 1976-12-31 |
| AT346602B (en) | 1978-11-27 |
| NL7511129A (en) | 1976-03-23 |
| ATA717775A (en) | 1978-03-15 |
| BE833641A (en) | 1976-01-16 |
| BR7506035A (en) | 1976-08-03 |
| FR2285421A1 (en) | 1976-04-16 |
| ES441110A1 (en) | 1977-03-16 |
| IT1047417B (en) | 1980-09-10 |
| GB1507328A (en) | 1978-04-12 |
| DE2541273A1 (en) | 1976-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE311412T1 (en) | MOLDABLE THERMOPLASTIC FOAM BEADS | |
| ES405948A1 (en) | Method for the preparation of plastic foam | |
| JPS572343A (en) | Foam of crosslinked vinyl chloride resin and its preparation | |
| ES311149A1 (en) | Procedure to manufacture an expanded polymer. (Machine-translation by Google Translate, not legally binding) | |
| ES477718A1 (en) | Thermally insulating tubes | |
| GB1004775A (en) | Improvements relating to the manufacture of cellular insulated wire | |
| ES515000A0 (en) | "PROCEDURE FOR THE PRODUCTION OF CROSSLINED FOAMED MATERIALS WITH A PREVIOUSLY CLOSED CELL STRUCTURE". | |
| GB2271742A (en) | Process for extruding low density foam using water blowing agent | |
| GB1050164A (en) | ||
| GB1519160A (en) | Process and apparatus for forming a cross-linked foamed moulding of an ethylenic polymer | |
| ES297345A1 (en) | A procedure for the reticulation of cellular materials polymers (Machine-translation by Google Translate, not legally binding) | |
| CH609074A5 (en) | Process for the manufacture of polyethylene foam | |
| GB1069792A (en) | Method of manufacturing bodines of foamed plastic | |
| GB783269A (en) | Production of organic plastic materials in expanded or cellular form | |
| FI900980A0 (en) | FOERFARANDE FOER FRAMSTAELLNING AV EXTRUDERADE SKUMPLASTER. | |
| GB2016475A (en) | Foamed, crosslinked olefine polymer products from waste foam | |
| ES436232A1 (en) | Process for expanding thermoplastic polymers | |
| GB1093611A (en) | A composition and process for the production of expandible resins | |
| GB1049212A (en) | Heat shrinkable, foamed thermoplastic polymers | |
| ES303623A3 (en) | Procedure for the manufacture of isolated electrical conductors (Machine-translation by Google Translate, not legally binding) | |
| ES433209A1 (en) | Process for the production of foam plastics with a fine cellular structure | |
| SE8004295L (en) | PROCEDURE FOR PRODUCING THERMOPLASTIC CELLS | |
| FR2338786A1 (en) | Laminated sheet with polystyrene foam core - extruded as tube before foaming then heated to activate expanding agent | |
| GB928656A (en) | Process of preparing cellular materials | |
| JPH0417980B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |