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
JP47124469A 1971-12-27 1972-12-13 Pending JPS4876961A (en)

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 (en) 1973-10-16

Family

ID=22791928

Family Applications (1)

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

Country Status (2)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112011102710A5 (en) 2010-08-13 2013-05-29 Otto Wiesmayer Sealing shell and its use, apparatus for producing molded foam parts, foam mold and Schäumformwerkzeug, and mold foaming tool and method for producing a foam mold
FR2989019B1 (en) * 2012-04-04 2016-09-30 Plastiques Du Val De Loire INJECTION MOLDING PROCESS OF PLASTIC FOAM MATERIAL

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1468203A (en) * 1965-02-16 1967-02-03 Kay Mfg Corp Molding apparatus and method
FR1450652A (en) * 1965-07-01 1966-06-24 Metaux Et Plastiques De La Neu Process for developing synthetic resins in foam and mold for its implementation
US3419648A (en) * 1965-08-18 1968-12-31 Dow Chemical Co Method of molding polystyrene
DE1504276B2 (en) * 1965-10-12 1973-09-06 Fa. Carl Freudenberg, 6940 Weinheim PROCESS FOR MANUFACTURING FOAM MOLDED BODIES FROM POLYURETHANE
CH495207A (en) * 1969-10-09 1970-08-31 Lonza Ag Foamed plastic panels for insulating contain- - ers of low-boiling liquids

Also Published As

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

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