IT1071581B - Procedimento congiunto di reticolazione espansione ed estrusione di una poliolefina ramificata - Google Patents

Procedimento congiunto di reticolazione espansione ed estrusione di una poliolefina ramificata

Info

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
Application number
IT67407/77A
Other languages
English (en)
Italian (it)
Original Assignee
Dupont S T
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dupont S T filed Critical Dupont S T
Application granted granted Critical
Publication of IT1071581B publication Critical patent/IT1071581B/it

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)
IT67407/77A 1976-02-26 1977-02-24 Procedimento congiunto di reticolazione espansione ed estrusione di una poliolefina ramificata IT1071581B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7605441A FR2342148A1 (fr) 1976-02-26 1976-02-26 Procede conjoint de reticulation, d'expansion et d'extrusion d'une polyolefine ramifiee

Publications (1)

Publication Number Publication Date
IT1071581B true IT1071581B (it) 1985-04-10

Family

ID=9169651

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67407/77A IT1071581B (it) 1976-02-26 1977-02-24 Procedimento congiunto di reticolazione espansione ed estrusione di una poliolefina ramificata

Country Status (6)

Country Link
BE (1) BE851850A (enrdf_load_stackoverflow)
DE (1) DE2707874A1 (enrdf_load_stackoverflow)
FR (1) FR2342148A1 (enrdf_load_stackoverflow)
GB (1) GB1566056A (enrdf_load_stackoverflow)
IT (1) IT1071581B (enrdf_load_stackoverflow)
NL (1) NL7702105A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO313835B1 (no) * 1998-06-19 2002-12-09 Borealis As Fremgangsmate for forgrening av polypropylenmaterialer, fremgangsmate for forgrening og skumming av polypropylenmaterialer, og anvendelse av polymermaterialene oppnadd ved fremgangsmatene

Also Published As

Publication number Publication date
FR2342148B1 (enrdf_load_stackoverflow) 1979-07-20
NL7702105A (nl) 1977-08-30
BE851850A (fr) 1977-08-25
DE2707874A1 (de) 1977-09-01
GB1566056A (en) 1980-04-30
FR2342148A1 (fr) 1977-09-23

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