DE2317944A1 - - Google Patents

Info

Publication number
DE2317944A1
DE2317944A1 DE19732317944 DE2317944A DE2317944A1 DE 2317944 A1 DE2317944 A1 DE 2317944A1 DE 19732317944 DE19732317944 DE 19732317944 DE 2317944 A DE2317944 A DE 2317944A DE 2317944 A1 DE2317944 A1 DE 2317944A1
Authority
DE
Germany
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.)
Granted
Application number
DE19732317944
Other languages
German (de)
Other versions
DE2317944B1 (de
DE2317944C2 (enrdf_load_stackoverflow
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
Priority claimed from GB1648872A external-priority patent/GB1427006A/en
Priority claimed from GB1639872*[A external-priority patent/GB1399102A/en
Application filed filed Critical
Publication of DE2317944A1 publication Critical patent/DE2317944A1/de
Publication of DE2317944B1 publication Critical patent/DE2317944B1/de
Priority to JP3572674A priority Critical patent/JPS5035219A/ja
Application granted granted Critical
Publication of DE2317944C2 publication Critical patent/DE2317944C2/de
Granted legal-status Critical Current

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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • 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
    • C08J9/125—Water, e.g. hydrated salts
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
DE19732317944 1972-04-10 1973-04-05 Herstellung von kunststoffschaeumen Granted DE2317944B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3572674A JPS5035219A (enrdf_load_stackoverflow) 1973-04-05 1974-04-01

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1648872A GB1427006A (en) 1972-04-10 1972-04-10 Foamed polyolefine materials
GB1639872*[A GB1399102A (en) 1971-08-27 1972-04-10 Plastics laminate

Publications (3)

Publication Number Publication Date
DE2317944A1 true DE2317944A1 (enrdf_load_stackoverflow) 1973-11-15
DE2317944B1 DE2317944B1 (de) 1973-11-15
DE2317944C2 DE2317944C2 (enrdf_load_stackoverflow) 1974-06-20

Family

ID=26252019

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732317944 Granted DE2317944B1 (de) 1972-04-10 1973-04-05 Herstellung von kunststoffschaeumen

Country Status (2)

Country Link
JP (1) JPS5222385B2 (enrdf_load_stackoverflow)
DE (1) DE2317944B1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5492234A (en) * 1977-12-28 1979-07-21 Canon Inc Reflection type screen
JPS59131902A (ja) * 1983-10-21 1984-07-28 Canon Inc スペツクル拡散板作成方法

Also Published As

Publication number Publication date
JPS5222385B2 (enrdf_load_stackoverflow) 1977-06-17
DE2317944B1 (de) 1973-11-15
JPS4910265A (enrdf_load_stackoverflow) 1974-01-29
DE2317944C2 (enrdf_load_stackoverflow) 1974-06-20

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee