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NL8003137A - Werkwijze voor het vervaardigen van voorwerpen uit schuimbare thermoplastische kunststoffen. - Google Patents

Werkwijze voor het vervaardigen van voorwerpen uit schuimbare thermoplastische kunststoffen. Download PDF

Info

Publication number
NL8003137A
NL8003137A NL8003137A NL8003137A NL8003137A NL 8003137 A NL8003137 A NL 8003137A NL 8003137 A NL8003137 A NL 8003137A NL 8003137 A NL8003137 A NL 8003137A NL 8003137 A NL8003137 A NL 8003137A
Authority
NL
Netherlands
Prior art keywords
heating medium
water vapor
hot
plastic granulate
mold
Prior art date
Application number
NL8003137A
Other languages
English (en)
Dutch (nl)
Original Assignee
Civag 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 Civag Ag filed Critical Civag Ag
Publication of NL8003137A publication Critical patent/NL8003137A/nl

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22After-treatment of expandable particles; Forming foamed products
    • C08J9/228Forming foamed products
    • C08J9/232Forming foamed products by sintering expandable particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/3415Heating or cooling
    • B29C44/3426Heating by introducing steam in the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/36Feeding the material to be shaped
    • B29C44/38Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B29K2025/04Polymers of styrene
    • B29K2025/06PS, i.e. polystyrene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02Homopolymers or copolymers of hydrocarbons
    • C08J2325/04Homopolymers or copolymers of styrene
    • C08J2325/06Polystyrene

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Molding Of Porous Articles (AREA)
NL8003137A 1979-05-31 1980-05-29 Werkwijze voor het vervaardigen van voorwerpen uit schuimbare thermoplastische kunststoffen. NL8003137A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2922315 1979-05-31
DE19792922315 DE2922315A1 (de) 1979-05-31 1979-05-31 Verfahren zur herstellung von schaeumbaren thermoplastischen kunststoffen

Publications (1)

Publication Number Publication Date
NL8003137A true NL8003137A (nl) 1980-12-02

Family

ID=6072228

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8003137A NL8003137A (nl) 1979-05-31 1980-05-29 Werkwijze voor het vervaardigen van voorwerpen uit schuimbare thermoplastische kunststoffen.

Country Status (13)

Country Link
JP (1) JPS5628836A (es)
BE (1) BE883586A (es)
BR (1) BR8003418A (es)
DE (1) DE2922315A1 (es)
ES (1) ES492029A0 (es)
FR (1) FR2457881A1 (es)
GB (1) GB2051073A (es)
IL (1) IL60200A0 (es)
IT (1) IT1140984B (es)
MA (1) MA18863A1 (es)
NL (1) NL8003137A (es)
PT (1) PT71334A (es)
SE (1) SE8004058L (es)

Also Published As

Publication number Publication date
MA18863A1 (fr) 1980-12-31
FR2457881B3 (es) 1982-05-21
IL60200A0 (en) 1980-07-31
DE2922315A1 (de) 1981-02-05
BE883586A (fr) 1980-09-15
IT1140984B (it) 1986-10-10
GB2051073A (en) 1981-01-14
IT8022470A0 (it) 1980-05-30
BR8003418A (pt) 1981-01-05
JPS5628836A (en) 1981-03-23
ES8102167A1 (es) 1980-12-16
FR2457881A1 (fr) 1980-12-26
SE8004058L (sv) 1980-12-01
PT71334A (en) 1980-06-01
ES492029A0 (es) 1980-12-16

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Legal Events

Date Code Title Description
BV The patent application has lapsed