ES384742A2 - Process and apparatus for the extrusion of expansible plastics material - Google Patents

Process and apparatus for the extrusion of expansible plastics material

Info

Publication number
ES384742A2
ES384742A2 ES384742A ES384742A ES384742A2 ES 384742 A2 ES384742 A2 ES 384742A2 ES 384742 A ES384742 A ES 384742A ES 384742 A ES384742 A ES 384742A ES 384742 A2 ES384742 A2 ES 384742A2
Authority
ES
Spain
Prior art keywords
former
channel
inlet
along
outlet
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
ES384742A
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.)
Ugine Kuhlmann SA
Original Assignee
Ugine Kuhlmann SA
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 Ugine Kuhlmann SA filed Critical Ugine Kuhlmann SA
Publication of ES384742A2 publication Critical patent/ES384742A2/en
Expired 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
    • B29C44/36—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
    • 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
    • B29K—INDEXING 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/043—Skinned foam

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Improvements introduced in the object of the main patent No. 344,780, issued on November 8, 1968, for "Procedure for the extrusion of an expandable plastic material composition", according to which, a method to obtain a product of extruded plastic material, comprising the operations of extruding an expandable plastic material in an at least partially unexpanded state, through a nozzle outlet, the extruded material having an external surface thereon, feeding the extruded material through an immediately adjacent elongated former at the nozzle outlet, the shaper having an internal surface defining a channel, said channel having an inlet and an outlet and circumscribing said channel inlet to said nozzle outlet, each of said inlet having the shaping channel and said outlet nozzle a plurality of faces and angles, the inlet to the channel of the former and the outlet of the nozzle being in close proximity at least along the entire length of one of said faces of said inlet to the shaper and along the entire length of a corresponding face of said nozzle outlet, said first face of said inlet to the shaper terminating, by each of its ends, at one of said angles of said inlet to the former, and also ending said corresponding face of said nozzle outlet, at each of its ends, at one of said angles of said nozzle outlet, making quick contact the outer surface of the extruded material through the nozzle outlet with the inner surface of the shaper channel at least along the entire length of said first face of said inlet to the shaper, and the outlet cross-section of the channel being substantially that of the desired product, quickly cool the external part adjacent to the external surface of the extruded material, at least along the entire length tud of one face of said external surface, below the gel point of the material immediately after feeding the channel of the former, to form a thick coating of higher density, at least along said first face of said external surface, forming with This is a continuous thick coating area along the outer surface of the extrudate and sufficient mechanical strength communicating to the extrudate in the former to allow it to be pulled through the former, expanding the extruded material from at least said continuous coating area. thick into the channel of the former to substantially fill the channel and to exert positive pressure against the internal surface of the former at least along said continuous area of thick coating, the pressure being low enough to allow the extrudate to be pulled to through the former, exert a force on the material extrudate exiting the former, thereby transmitting said force through said thick coating to the inlet to the former to allow the extruded product to be pulled through the former, and the extruded product to be pulled through the former. (Machine-translation by Google Translate, not legally binding)
ES384742A 1969-10-22 1970-10-21 Process and apparatus for the extrusion of expansible plastics material Expired ES384742A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6936308A FR2063589A6 (en) 1969-10-22 1969-10-22

Publications (1)

Publication Number Publication Date
ES384742A2 true ES384742A2 (en) 1973-09-01

Family

ID=9041938

Family Applications (1)

Application Number Title Priority Date Filing Date
ES384742A Expired ES384742A2 (en) 1969-10-22 1970-10-21 Process and apparatus for the extrusion of expansible plastics material

Country Status (24)

Country Link
JP (1) JPS4812423B1 (en)
AT (1) AT331501B (en)
BE (1) BE757510R (en)
BR (1) BR7023259D0 (en)
CA (1) CA981861A (en)
CH (1) CH532463A (en)
CS (1) CS216179B2 (en)
DE (1) DE2050550C3 (en)
DK (1) DK135526B (en)
ES (1) ES384742A2 (en)
FI (1) FI52043C (en)
FR (1) FR2063589A6 (en)
GB (1) GB1318608A (en)
HU (1) HU163120B (en)
IE (1) IE34595B1 (en)
IT (1) IT941015B (en)
LU (1) LU61898A1 (en)
NL (1) NL167891C (en)
NO (1) NO132417C (en)
OA (1) OA152E (en)
PL (1) PL84474B3 (en)
RO (1) RO73029B (en)
SE (1) SE365981B (en)
ZA (1) ZA707038B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931379A (en) * 1973-07-17 1976-01-06 Cosden Oil & Chemical Company Foamed profile extrusion process
US3954929A (en) * 1973-10-11 1976-05-04 The Dow Chemical Company Method and apparatus for the extrusion of foamable thermoplastic materials
US3978182A (en) * 1973-12-26 1976-08-31 Mobil Oil Corporation Method for extruding a polystyrene foam with variations in mass concentration across the sheet and thermoforming the sheet
IT1074365B (en) * 1977-03-22 1985-04-20 Montedison Spa EXTRUSION PROCEDURE OF SEMI-EXPANDED PLASTIC PROFILES AND RELATED EQUIPMENT
NO154220C (en) * 1979-04-20 1986-08-20 Sentralinst For Ind Forskning WALL CONSTRUCTION AND PROCEDURE FOR ITS MANUFACTURING.
DE3418506C2 (en) * 1984-05-18 1987-02-12 Fa. Carl Freudenberg, 6940 Weinheim Process for producing foams with high heat resistance
FR2580542B1 (en) * 1985-04-23 1987-07-17 Atochem PROCESS FOR EXTRUDING EXPANDABLE PLASTICS
DE102007045900A1 (en) * 2007-09-26 2009-04-09 Rehau Ag + Co Composite body and method for its production
CN109016314A (en) * 2017-06-09 2018-12-18 南京法宁格节能科技股份有限公司 The double methods opened of XPS profile shapes ornamental strip mold and mould therefor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154264B (en) * 1956-11-20 1963-09-12 Reifenhaeuser Kg Device for the continuous extrusion of molded bodies with a foam core and a shell made of thermoplastic material
GB912888A (en) * 1959-07-22 1900-01-01
FR1255499A (en) * 1960-01-28 1961-03-10 Ets Kuhlmann Lightweight material resistant to pressure and stress, its manufacture and applications
DE1235566B (en) * 1962-04-30 1967-03-02 Huels Chemische Werke Ag Device for extrusion of foam profiles
FR1428652A (en) * 1964-03-03 1966-02-18 Haveg Industries Inc Thermoplastic polymer foam stretched then heat contracted
FR1434808A (en) * 1964-05-29 1966-04-08 Basf Ag Method and device for the manufacture of foamed plastic strips
US3461496A (en) * 1965-11-08 1969-08-19 Thomas W Winstead Apparatus for extruding a skin covered,foamed thermoplastic
FR1498620A (en) * 1966-09-07 1967-10-20 Kuhlmann Ets Method and device for the extrusion of expandable plastics

Also Published As

Publication number Publication date
DE2050550A1 (en) 1971-04-29
ZA707038B (en) 1971-08-25
BE757510R (en) 1971-04-14
NL7015500A (en) 1971-04-26
FI52043B (en) 1977-02-28
RO73029B (en) 1984-11-30
CH532463A (en) 1973-01-15
FI52043C (en) 1977-06-10
OA152E (en) 1971-12-24
NO132417B (en) 1975-08-04
NO132417C (en) 1975-11-12
LU61898A1 (en) 1971-08-10
CA981861A (en) 1976-01-20
PL84474B3 (en) 1976-04-30
DK135526C (en) 1977-10-24
SE365981B (en) 1974-04-08
IT941015B (en) 1973-03-01
IE34595B1 (en) 1975-06-25
DE2050550B2 (en) 1979-11-29
DE2050550C3 (en) 1984-11-08
AT331501B (en) 1976-08-25
RO73029A (en) 1984-10-31
JPS4812423B1 (en) 1973-04-20
IE34595L (en) 1971-04-22
NL167891B (en) 1981-09-16
DK135526B (en) 1977-05-16
ATA944370A (en) 1975-11-15
NL167891C (en) 1987-04-16
GB1318608A (en) 1973-05-31
CS216179B2 (en) 1982-10-29
BR7023259D0 (en) 1973-04-05
HU163120B (en) 1973-06-28
FR2063589A6 (en) 1971-07-09

Similar Documents

Publication Publication Date Title
US3812230A (en) Method for continuously making a hollow board article of thermoplastic resin
ES434541A1 (en) Method for extruding cellular thermoplastic products
ES408931A1 (en) Process of producing synthetic wood having a beautiful appearance
ES431364A1 (en) Extrusion of hollow articles through a lubricated die
ES8600116A1 (en) Method of extruding a foamed thermoplastic core and extruding and integrally sealing a non-porous skin thereon
ES392878A2 (en) Manufacture of insulated electric cables
ES445205A1 (en) Material and apparatus for extruding a crosslinked polyolefin product
ES418968A1 (en) Process and apparatus for the extrusion of coated skein-shaped profiles, preferably of thermoplastic synthetic resins
IE40322L (en) Extruding externally ridged pipe.
ES416009A1 (en) Method of and apparatus for extruding plastic materials
US3189941A (en) Apparatus for continuous extrusion of composite bodies of plastic material
ES384742A2 (en) Process and apparatus for the extrusion of expansible plastics material
ES380857A1 (en) Process for producing a cellular polymeric extrudate of uniform cross-sectional area
ES392438A1 (en) Process and apparatus for the continuous production and/or covering of extruded sections
US3483597A (en) Ram extrusion of granular resins
ES418128A1 (en) Apparatus for extruding and moulding plastic material
GB1324694A (en) Apparatus for manufacturing helically-corrugated plastics tube
GB1018178A (en) Process and apparatus for the production of mouldings or extrusions having a cellular structure from thermoplastic synthetic materials
US3150217A (en) Extrusion method and apparatus
US4009237A (en) Process for producing shaped synthetic resin articles varying in shape of longitudinal section
US3030623A (en) Method for making blown rubber
FR2204496A1 (en) In line thermoforming thin walled plastics articles - from band with cooled surface skin but hot core, avoids marks on finished product
GB1236577A (en) Corrugated flexible tubing
ES350514A1 (en) Food Casings
FR2074252A5 (en) Extrusion moulding of cellular moulding