DK571778A - Fremgangsmaade og apparat til at forme termoplastiske skumstoffer med et forstoerret tvaersnitsomraade ved at ekstrudere en varmeplastificeret gel ind i en formekanal - Google Patents

Fremgangsmaade og apparat til at forme termoplastiske skumstoffer med et forstoerret tvaersnitsomraade ved at ekstrudere en varmeplastificeret gel ind i en formekanal

Info

Publication number
DK571778A
DK571778A DK571778A DK571778A DK571778A DK 571778 A DK571778 A DK 571778A DK 571778 A DK571778 A DK 571778A DK 571778 A DK571778 A DK 571778A DK 571778 A DK571778 A DK 571778A
Authority
DK
Denmark
Prior art keywords
molding
extracting
heat
enlarged cross
section area
Prior art date
Application number
DK571778A
Other languages
English (en)
Other versions
DK150977C (da
DK150977B (da
Inventor
M S Ratafia
K W Suh
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of DK571778A publication Critical patent/DK571778A/da
Publication of DK150977B publication Critical patent/DK150977B/da
Application granted granted Critical
Publication of DK150977C publication Critical patent/DK150977C/da

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
    • B29C44/36—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
    • B29C44/505—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 a flat die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/94—Lubricating
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • General Preparation And Processing Of Foods (AREA)
DK571778A 1977-12-20 1978-12-20 Fremgangsmaade og apparat til fremstilling af genstande af skumformstof ved ekstrudering af en varmeplastificeret gel ind i en formekanal DK150977C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86226477 1977-12-20
US05/862,264 US4146563A (en) 1977-12-20 1977-12-20 Method and apparatus for forming thermoplastic foams

Publications (3)

Publication Number Publication Date
DK571778A true DK571778A (da) 1979-06-21
DK150977B DK150977B (da) 1987-10-05
DK150977C DK150977C (da) 1988-06-06

Family

ID=25338077

Family Applications (1)

Application Number Title Priority Date Filing Date
DK571778A DK150977C (da) 1977-12-20 1978-12-20 Fremgangsmaade og apparat til fremstilling af genstande af skumformstof ved ekstrudering af en varmeplastificeret gel ind i en formekanal

Country Status (10)

Country Link
US (1) US4146563A (da)
EP (1) EP0002489B1 (da)
JP (1) JPS6053689B2 (da)
AT (1) AT371762B (da)
AU (1) AU529899B2 (da)
BR (1) BR7808339A (da)
CA (1) CA1103872A (da)
DE (1) DE2860962D1 (da)
DK (1) DK150977C (da)
NO (1) NO152327C (da)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282890A (en) * 1978-03-13 1981-08-11 Celanese Corporation Open cell structure foamed cellulose acetate filters
US4419309A (en) * 1982-04-30 1983-12-06 Mobil Oil Corporation Polystyrene foam extrusion into a foam assisting atmosphere
JPS6011329A (ja) * 1983-07-01 1985-01-21 Mitsubishi Petrochem Co Ltd 架橋発泡体の連続製造方法
JPS60201925A (ja) * 1984-03-26 1985-10-12 Ikegai Corp 押出成形用ダイ
US4698228A (en) * 1984-03-29 1987-10-06 Nabisco Brands Process for extruding dough as used in producing crisp breads
US4659303A (en) * 1984-03-29 1987-04-21 Nabisco Brands, Inc. Apparatus for extruding dough as used in producing crisp breads
EP0218640B1 (en) * 1985-04-12 1990-10-03 The Dow Chemical Company Method for the preparation of styrene polymer foam and foam prepared thereby
HU214931B (hu) * 1991-11-14 1998-07-28 Prefoam Ag. Eljárás és berendezés poliuretánhab termékek előállítására előre megadott nyomástartományban
DE69818786T2 (de) 1997-12-26 2004-07-29 Sumitomo Chemical Co., Ltd. Vorrichtung zur Herstellung von thermoplastischer Schaumfolie
DE19849263C2 (de) * 1998-10-26 2003-06-12 Moeller Plast Gmbh Verfahren zur Herstellung eines Bauteils durch Coextrusion
IT1318863B1 (it) 2000-09-14 2003-09-10 Omipa S P A Dispositivo di calibrazione per profili estrusi
AU2003226414A1 (en) * 2002-05-30 2003-12-19 Dow Global Technologies, Inc. Halogen free ignition resistant thermoplastic resin compositions
WO2004072179A1 (en) * 2003-02-06 2004-08-26 Dow Global Technologies Inc. Halogen free ignition resistant thermoplastic resin compositions
JP2007530319A (ja) 2004-03-26 2007-11-01 ネイチャーワークス・エル・エル・シー 二酸化炭素発泡により押出成形されたポリラクチド発泡体
KR101148353B1 (ko) 2004-05-28 2012-05-21 다우 글로벌 테크놀로지스 엘엘씨 내인화성 할로겐 무함유 중합체의 제조에 유용한 인 함유화합물
EP2420373A3 (de) 2010-08-20 2012-06-06 Rundpack AG Verfahren zur Herstellung eines opaken Formteils
WO2012044483A1 (en) 2010-09-30 2012-04-05 Dow Global Technologies Llc Process for recovering brominated styrene-butadiene copolymers from a bromination reaction solution
WO2012082332A1 (en) 2010-12-17 2012-06-21 Dow Global Technologies Llc Polystyrene melt extrusion process
IN2013CN10264A (da) 2011-06-29 2015-07-31 Dow Global Technologies Llc
US9511523B2 (en) 2012-03-28 2016-12-06 Sabic Global Technologies B.V. Static-dissipative foam extrusion calibration with minimized expansion loss
US10633084B2 (en) * 2017-08-25 2020-04-28 Bell Helicopter Textron Inc. Geodesic composite structures

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537977A (en) * 1948-07-15 1951-01-16 Dow Chemical Co Method of making a shaped thermoplastic cellular product
NL286346A (da) * 1961-12-05
NL286347A (da) * 1961-12-07
US3335207A (en) * 1963-10-11 1967-08-08 Owens Illinois Inc Method and apparatus for forming foamed low density sheet plastic
FR1595011A (da) * 1968-01-11 1970-06-08
US3812230A (en) * 1970-09-29 1974-05-21 Takan Kogyo Co Ltd Method for continuously making a hollow board article of thermoplastic resin
US3835209A (en) * 1971-11-09 1974-09-10 Owens Illinois Inc Process of extruding a foamed extrudate and controlling the thickness thereof
BE789774A (fr) * 1972-02-18 1973-02-01 Sinclair Koppers Co Procede et appareil pour la fabrication de profiles en mousse
IT985207B (it) * 1972-05-26 1974-11-30 Derivados Del Fluor Sa Procedimento continuo per la produzione di fluoruro di allu minio
US4049760A (en) * 1973-03-16 1977-09-20 Societe Chimique Des Charbonnages Method of manufacture of foamed thermo-plastic extruded shapes
US3954929A (en) * 1973-10-11 1976-05-04 The Dow Chemical Company Method and apparatus for the extrusion of foamable thermoplastic materials
US3966381A (en) * 1973-11-21 1976-06-29 The Dow Chemical Company Extrusion of thermoplastic foam

Also Published As

Publication number Publication date
NO784257L (no) 1979-06-21
DK150977C (da) 1988-06-06
US4146563A (en) 1979-03-27
BR7808339A (pt) 1979-08-07
EP0002489B1 (en) 1981-08-12
DK150977B (da) 1987-10-05
AU4220278A (en) 1979-06-28
NO152327C (no) 1985-09-11
AT371762B (de) 1983-07-25
CA1103872A (en) 1981-06-30
EP0002489A1 (en) 1979-06-27
JPS5487769A (en) 1979-07-12
NO152327B (no) 1985-06-03
JPS6053689B2 (ja) 1985-11-27
DE2860962D1 (en) 1981-11-12
AU529899B2 (en) 1983-06-23
ATA910578A (de) 1982-12-15

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