IT1071581B - JOINT PROCEDURE FOR RETICULATION EXPANSION AND EXTRUSION OF A BRANCHED POLYOLEFINE - Google Patents
JOINT PROCEDURE FOR RETICULATION EXPANSION AND EXTRUSION OF A BRANCHED POLYOLEFINEInfo
- Publication number
- IT1071581B IT1071581B IT67407/77A IT6740777A IT1071581B IT 1071581 B IT1071581 B IT 1071581B IT 67407/77 A IT67407/77 A IT 67407/77A IT 6740777 A IT6740777 A IT 6740777A IT 1071581 B IT1071581 B IT 1071581B
- Authority
- IT
- Italy
- Prior art keywords
- reticulation
- extrusion
- expansion
- joint procedure
- polyolefine
- Prior art date
Links
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
- C08J9/12—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 physical blowing agent
- C08J9/14—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 physical blowing agent organic
- C08J9/143—Halogen containing compounds
-
- 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
-
- 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
-
- 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
Landscapes
- 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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7605441A FR2342148A1 (en) | 1976-02-26 | 1976-02-26 | JOINT PROCESS FOR CROSS-LINKING, EXPANSION AND EXTRUSION OF A BRANCHIFIED POLYOLEFIN |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1071581B true IT1071581B (en) | 1985-04-10 |
Family
ID=9169651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67407/77A IT1071581B (en) | 1976-02-26 | 1977-02-24 | JOINT PROCEDURE FOR RETICULATION EXPANSION AND EXTRUSION OF A BRANCHED POLYOLEFINE |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE851850A (en) |
DE (1) | DE2707874A1 (en) |
FR (1) | FR2342148A1 (en) |
GB (1) | GB1566056A (en) |
IT (1) | IT1071581B (en) |
NL (1) | NL7702105A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO313835B1 (en) * | 1998-06-19 | 2002-12-09 | Borealis As | Process for branching polypropylene materials, process for branching and foaming polypropylene materials, and using the polymeric materials obtained by the methods |
-
1976
- 1976-02-26 FR FR7605441A patent/FR2342148A1/en active Granted
-
1977
- 1977-02-18 GB GB7033/77A patent/GB1566056A/en not_active Expired
- 1977-02-24 DE DE19772707874 patent/DE2707874A1/en not_active Ceased
- 1977-02-24 IT IT67407/77A patent/IT1071581B/en active
- 1977-02-25 NL NL7702105A patent/NL7702105A/en not_active Application Discontinuation
- 1977-02-25 BE BE175280A patent/BE851850A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2342148A1 (en) | 1977-09-23 |
GB1566056A (en) | 1980-04-30 |
NL7702105A (en) | 1977-08-30 |
FR2342148B1 (en) | 1979-07-20 |
DE2707874A1 (en) | 1977-09-01 |
BE851850A (en) | 1977-08-25 |
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