IT1075532B - Procedimento per la preparazione di tubolari estrusi di polistirolo espanso - Google Patents

Procedimento per la preparazione di tubolari estrusi di polistirolo espanso

Info

Publication number
IT1075532B
IT1075532B IT23210/77A IT2321077A IT1075532B IT 1075532 B IT1075532 B IT 1075532B IT 23210/77 A IT23210/77 A IT 23210/77A IT 2321077 A IT2321077 A IT 2321077A IT 1075532 B IT1075532 B IT 1075532B
Authority
IT
Italy
Prior art keywords
procedure
preparation
expanded polystyrene
polystyrene tubes
extruded expanded
Prior art date
Application number
IT23210/77A
Other languages
English (en)
Italian (it)
Inventor
Klaus-Dieter Kolossow
Original Assignee
Berstorff Gmbh Masch Hermann
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 Berstorff Gmbh Masch Hermann filed Critical Berstorff Gmbh Masch Hermann
Application granted granted Critical
Publication of IT1075532B publication Critical patent/IT1075532B/it

Links

Classifications

    • 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
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • 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
    • B29L2023/00—Tubular articles
IT23210/77A 1976-05-10 1977-05-05 Procedimento per la preparazione di tubolari estrusi di polistirolo espanso IT1075532B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2620552 1976-05-10

Publications (1)

Publication Number Publication Date
IT1075532B true IT1075532B (it) 1985-04-22

Family

ID=5977512

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23210/77A IT1075532B (it) 1976-05-10 1977-05-05 Procedimento per la preparazione di tubolari estrusi di polistirolo espanso

Country Status (7)

Country Link
JP (1) JPS52136271A (enrdf_load_stackoverflow)
BR (1) BR7702999A (enrdf_load_stackoverflow)
ES (1) ES458622A1 (enrdf_load_stackoverflow)
FI (1) FI771008A7 (enrdf_load_stackoverflow)
FR (1) FR2350946A1 (enrdf_load_stackoverflow)
IT (1) IT1075532B (enrdf_load_stackoverflow)
SE (1) SE7705381L (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0517224Y2 (enrdf_load_stackoverflow) * 1986-12-27 1993-05-10

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368008A (en) * 1964-01-09 1968-02-06 Azuma Kimikazu Method for producing foamable thermoplastic resin composition
US3287477A (en) * 1964-11-12 1966-11-22 Koppers Co Inc Process and apparatus for extruding a foamed plastic
GB1230992A (enrdf_load_stackoverflow) * 1967-08-04 1971-05-05
FR1600010A (enrdf_load_stackoverflow) * 1968-03-23 1970-07-20
DE1778104A1 (de) * 1968-03-27 1971-07-29 Huels Chemische Werke Ag Verfahren zur Herstellung von feinzelligen geschaeumten Formkoerpern aus thermoplastischen Kunststoffen durch Extrudieren eines Gemisches aus einem thermoplastischen Kunststoff,einem niedrigsiedenden Treibmittel und einem Porenregler
GB1328362A (en) * 1970-10-19 1973-08-30 Ici Ltd Dispersion of materials in thermoplastics

Also Published As

Publication number Publication date
JPS52136271A (en) 1977-11-14
ES458622A1 (es) 1978-02-01
SE7705381L (sv) 1977-11-11
FI771008A7 (enrdf_load_stackoverflow) 1977-11-11
BR7702999A (pt) 1978-03-28
FR2350946A1 (fr) 1977-12-09

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