ES304868A1 - A procedure for foaming thermoplastic synthetic materials. (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for foaming thermoplastic synthetic materials. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES304868A1
ES304868A1 ES0304868A ES304868A ES304868A1 ES 304868 A1 ES304868 A1 ES 304868A1 ES 0304868 A ES0304868 A ES 0304868A ES 304868 A ES304868 A ES 304868A ES 304868 A1 ES304868 A1 ES 304868A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
*** translate
synthetic materials
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
ES0304868A
Other languages
Spanish (es)
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 ES304868A1 publication Critical patent/ES304868A1/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
    • 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
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets

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)
  • Sealing Material Composition (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A process for the foaming of thermoplastic synthetic materials, preferably of polyvinyl chloride, characterized in that the synthetic material, in the presence of a low-boiling liquid or of the corresponding mixture of liquids, which act by dissolving the material, at least in the vapor state, it is introduced into a substantially closed container or the like, where it is set at a temperature substantially higher than that of the boiling point of the liquid or mixture of liquids at normal pressure, and at the same time a high pressure, after which the solution is let out through a narrow opening in the container, whereupon it expands abruptly, after which, optionally, the foamed synthetic material, still hot, is welded by means of the use of a moderate pressure, for thus constitute bodies of arbitrary form. (Machine-translation by Google Translate, not legally binding)
ES0304868A 1963-10-14 1964-10-13 A procedure for foaming thermoplastic synthetic materials. (Machine-translation by Google Translate, not legally binding) Expired ES304868A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0042706 1963-10-14

Publications (1)

Publication Number Publication Date
ES304868A1 true ES304868A1 (en) 1965-04-01

Family

ID=7047054

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0304868A Expired ES304868A1 (en) 1963-10-14 1964-10-13 A procedure for foaming thermoplastic synthetic materials. (Machine-translation by Google Translate, not legally binding)

Country Status (12)

Country Link
BE (1) BE654348A (en)
CH (1) CH447598A (en)
DE (1) DE1504148A1 (en)
DK (1) DK113531B (en)
ES (1) ES304868A1 (en)
FI (1) FI43119C (en)
FR (1) FR1411467A (en)
GB (1) GB1084746A (en)
IL (1) IL22245A (en)
LU (1) LU47142A1 (en)
NL (1) NL6411882A (en)
SE (1) SE318099B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2158673C3 (en) * 1971-11-26 1975-05-15 Dynamit Nobel Ag, 5210 Troisdorf Method and device for the continuous production of webs from foamed thermoplastic material
US3987134A (en) * 1972-05-25 1976-10-19 The Furukawa Electric Co., Ltd. Manufacture of foamed compartmented structures
DE2236779A1 (en) * 1972-07-26 1974-02-07 Wacker Chemie Gmbh METHOD AND DEVICE FOR PRODUCING FOAMED PROFILES FROM THERMOPLASTICS WITH LOW DENSITY
US3954929A (en) * 1973-10-11 1976-05-04 The Dow Chemical Company Method and apparatus for the extrusion of foamable thermoplastic materials
US4044084A (en) * 1975-08-11 1977-08-23 Phipps Arthur L Method of removing an article from a chamber having a reduced pressure therein

Also Published As

Publication number Publication date
FI43119C (en) 1971-01-11
DK113531B (en) 1969-03-31
DE1504148A1 (en) 1969-09-25
SE318099B (en) 1969-12-01
IL22245A (en) 1968-01-25
LU47142A1 (en) 1965-01-15
GB1084746A (en) 1967-09-27
CH447598A (en) 1967-11-30
FR1411467A (en) 1965-09-17
NL6411882A (en) 1965-04-15
FI43119B (en) 1970-10-01
BE654348A (en) 1965-02-01

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