FR1476159A - Apparatus for manufacturing a sheet of thermoplastic foam - Google Patents

Apparatus for manufacturing a sheet of thermoplastic foam

Info

Publication number
FR1476159A
FR1476159A FR57686A FR57686A FR1476159A FR 1476159 A FR1476159 A FR 1476159A FR 57686 A FR57686 A FR 57686A FR 57686 A FR57686 A FR 57686A FR 1476159 A FR1476159 A FR 1476159A
Authority
FR
France
Prior art keywords
sheet
manufacturing
thermoplastic foam
thermoplastic
foam
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
FR57686A
Other languages
French (fr)
Inventor
Herbert A Ehrenfreund
Frederick D Debell
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.)
Debell & Richardson
De Bell and Richardson Inc
Original Assignee
Debell & Richardson
De Bell and Richardson Inc
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 US449178A external-priority patent/US3391051A/en
Application filed by Debell & Richardson, De Bell and Richardson Inc filed Critical Debell & Richardson
Priority to FR57686A priority Critical patent/FR1476159A/en
Application granted granted Critical
Publication of FR1476159A publication Critical patent/FR1476159A/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
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • 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
    • B29C44/3446—Feeding the blowing agent
    • 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

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)
FR57686A 1965-04-19 1966-04-14 Apparatus for manufacturing a sheet of thermoplastic foam Expired FR1476159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR57686A FR1476159A (en) 1965-04-19 1966-04-14 Apparatus for manufacturing a sheet of thermoplastic foam

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US449178A US3391051A (en) 1965-04-19 1965-04-19 Thermoplastic foam sheet material and apparatus for the manufacture thereof
FR57686A FR1476159A (en) 1965-04-19 1966-04-14 Apparatus for manufacturing a sheet of thermoplastic foam

Publications (1)

Publication Number Publication Date
FR1476159A true FR1476159A (en) 1967-04-07

Family

ID=26169959

Family Applications (1)

Application Number Title Priority Date Filing Date
FR57686A Expired FR1476159A (en) 1965-04-19 1966-04-14 Apparatus for manufacturing a sheet of thermoplastic foam

Country Status (1)

Country Link
FR (1) FR1476159A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779488B1 (en) * 1968-08-17 1973-10-31 Reifenhaeuser Kg SCREW PRESS
EP2933085A4 (en) * 2012-12-12 2016-01-20 Lg Hausys Ltd Apparatus for forming polymer, comprising polymer backflow prevention portion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779488B1 (en) * 1968-08-17 1973-10-31 Reifenhaeuser Kg SCREW PRESS
EP2933085A4 (en) * 2012-12-12 2016-01-20 Lg Hausys Ltd Apparatus for forming polymer, comprising polymer backflow prevention portion
US10201920B2 (en) 2012-12-12 2019-02-12 Lg Hausys, Ltd. Apparatus for forming polymer, comprising polymer backflow prevention portion

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