JPS4876961A - - Google Patents

Info

Publication number
JPS4876961A
JPS4876961A JP47124469A JP12446972A JPS4876961A JP S4876961 A JPS4876961 A JP S4876961A JP 47124469 A JP47124469 A JP 47124469A JP 12446972 A JP12446972 A JP 12446972A JP S4876961 A JPS4876961 A JP S4876961A
Authority
JP
Japan
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.)
Pending
Application number
JP47124469A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4876961A publication Critical patent/JPS4876961A/ja
Pending 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
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/68—Release sheets
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0415—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by regulating the pressure of the material during or after filling of the mould, e.g. by local venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
JP47124469A 1971-12-27 1972-12-13 Pending JPS4876961A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21265371A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
JPS4876961A true JPS4876961A (fr) 1973-10-16

Family

ID=22791928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47124469A Pending JPS4876961A (fr) 1971-12-27 1972-12-13

Country Status (2)

Country Link
JP (1) JPS4876961A (fr)
FR (1) FR2166222A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103260842B (zh) * 2010-08-13 2017-09-19 奥托·威斯迈耶 密封壳及其应用、用于制造成型发泡件的装置和方法
FR2989019B1 (fr) * 2012-04-04 2016-09-30 Plastiques Du Val De Loire Procede de moulage par injection d'un materiau plastique mousse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1468203A (fr) * 1965-02-16 1967-02-03 Kay Mfg Corp Appareil et procédé de moulage
FR1450652A (fr) * 1965-07-01 1966-06-24 Metaux Et Plastiques De La Neu Procédé pour développer en mousse des résines synthétiques et moule pour sa mise en oeuvre
US3419648A (en) * 1965-08-18 1968-12-31 Dow Chemical Co Method of molding polystyrene
DE1504276B2 (de) * 1965-10-12 1973-09-06 Fa. Carl Freudenberg, 6940 Weinheim Verfahren zum herstellen von schaumformkoerpern aus polyurethan
CH495207A (de) * 1969-10-09 1970-08-31 Lonza Ag Verfahren zur Herstellung von Schaumstoffplatten

Also Published As

Publication number Publication date
FR2166222A1 (en) 1973-08-10
FR2166222B1 (fr) 1976-01-30

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