GB1170539A - Process for the Production of Foamed Cross-Linked Olefin Polymers - Google Patents

Process for the Production of Foamed Cross-Linked Olefin Polymers

Info

Publication number
GB1170539A
GB1170539A GB3684467A GB3684467A GB1170539A GB 1170539 A GB1170539 A GB 1170539A GB 3684467 A GB3684467 A GB 3684467A GB 3684467 A GB3684467 A GB 3684467A GB 1170539 A GB1170539 A GB 1170539A
Authority
GB
United Kingdom
Prior art keywords
extruder
polymer
cross
foamed
olefin polymers
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3684467A
Inventor
Rolf Beckmann
Wolfgang Dobrikat
Erich Behr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB1170539A publication Critical patent/GB1170539A/en
Expired legal-status Critical Current

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
    • C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
    • 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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1,170,539. Foamed cross-linked olefin polymers. DYNAMIT NOBEL A.G. 10 Aug., 1967 [11 Aug., 1966], No. 36844/67. Headings C3C and C3P. Foamed cross-linked olefin polymers are obtained by (1) melting an olefin polymer in an extruder, (2) introducing into the decompression zone of the extruder a solution comprising a peroxidic cross-linking agent and a blowing agent having a boiling point below 40‹ C., (3) homogenizing the polymer melt mixture, (4) controlling the temperature of the homogenized mass such that it is capable of flowing through the nozzle of the extruder, (5) forcing the mass through the nozzle of the extruder to form a dimensionally stable partially crosslinked continuous length of foamed olefin polymer, and (6) completing the cross-linking of the polymer by heating. Pigments, fillers, age resistors and sulphur may be in admixture with the polymer. In the examples, polyethylene, polypropylene or an ethylene-vinyl acetate copolymer are used, together with dicumyl peroxide, 2,6-dimethyl-2,5-(t-butylperoxy)hexane, or di-t-butyl peroxide, and CCl 3 F or CCl 2 F 2 , and optionally carbon black, titanium dioxide, sulphur, aluminium silicate, calcium stearate, polymeric 2,2,4-trimethyl dihydroquinoline, zinc stearate, and 4,4-thio-bis-(6-t-butyl-3- methyl phenol).
GB3684467A 1966-08-11 1967-08-10 Process for the Production of Foamed Cross-Linked Olefin Polymers Expired GB1170539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0050816 1966-08-11

Publications (1)

Publication Number Publication Date
GB1170539A true GB1170539A (en) 1969-11-12

Family

ID=7052937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3684467A Expired GB1170539A (en) 1966-08-11 1967-08-10 Process for the Production of Foamed Cross-Linked Olefin Polymers

Country Status (5)

Country Link
BE (1) BE702550A (en)
DE (1) DE1629367A1 (en)
GB (1) GB1170539A (en)
LU (1) LU54271A1 (en)
NL (1) NL6711031A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446254A (en) * 1980-02-21 1984-05-01 The Furukawa Electric Co., Ltd. Crosslinked polyolefin foam containing a high concentration of an inorganic material and process for producing the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2411949C2 (en) * 1974-03-13 1984-09-06 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Process for the continuous production of heat-insulated line pipes
DE2525561C2 (en) * 1975-06-07 1985-11-07 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Process for the continuous production of heat-insulated line pipes
IT1187665B (en) * 1985-05-15 1987-12-23 Montedipe Spa MODIFIED ARTICLES OF ETHYLENE WITH VINYL ACETATE AND / OR WITH ALCHYL ESTERS OF ACRYLIC OR METHACRYLIC ACUDE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446254A (en) * 1980-02-21 1984-05-01 The Furukawa Electric Co., Ltd. Crosslinked polyolefin foam containing a high concentration of an inorganic material and process for producing the same

Also Published As

Publication number Publication date
DE1629367A1 (en) 1971-02-04
BE702550A (en) 1968-02-12
NL6711031A (en) 1968-02-12
LU54271A1 (en) 1967-10-09

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