ES470664A1 - Procedimiento y dispositivo para la obtencion continua de bloques de material espumado - Google Patents

Procedimiento y dispositivo para la obtencion continua de bloques de material espumado

Info

Publication number
ES470664A1
ES470664A1 ES470664A ES470664A ES470664A1 ES 470664 A1 ES470664 A1 ES 470664A1 ES 470664 A ES470664 A ES 470664A ES 470664 A ES470664 A ES 470664A ES 470664 A1 ES470664 A1 ES 470664A1
Authority
ES
Spain
Prior art keywords
section
rectangular cross
foamed slabs
continuously moulding
slabs
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
ES470664A
Other languages
English (en)
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of ES470664A1 publication Critical patent/ES470664A1/es
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
    • B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
    • B29C44/462—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface provided with pre-foaming devices
    • 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
    • B29C44/467—Foam spreading or levelling devices

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Procedimiento y dispositivo para la obtención continua de bloques de material espumado de sección rectangular de una mezcla de reacción espumable, especialmente a base de poliuretano, donde la mezcla de reacción se alimenta a una artesa continua en la que la mezcla de reacción se alimenta a una artesa continua en la que la mezcla de reacción se espuma para formar el bloque, cuyo procedimiento se caracteriza por la combinación de las siguientes etapas: a) la mezcla de reacción se deja que inicie su reacción antes de la aplicación, b) la mezcla de reacción aplicada se conduce en la zona de espumación bajo una inclinación entre 0 y 60º, preferentemente entre 0 y 30º hacia abajo, c) a lo largo de la zona de espumación se iguala la superficie del material espumado ascendiente en sentido transversal a la dirección de transporte.
ES470664A 1977-06-10 1978-06-09 Procedimiento y dispositivo para la obtencion continua de bloques de material espumado Expired ES470664A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772726084 DE2726084A1 (de) 1977-06-10 1977-06-10 Verfahren und vorrichtung zum kontinuierlichen herstellen von schaumstoffbloecken mit rechteckquerschnitt

Publications (1)

Publication Number Publication Date
ES470664A1 true ES470664A1 (es) 1979-02-16

Family

ID=6011121

Family Applications (1)

Application Number Title Priority Date Filing Date
ES470664A Expired ES470664A1 (es) 1977-06-10 1978-06-09 Procedimiento y dispositivo para la obtencion continua de bloques de material espumado

Country Status (5)

Country Link
EP (1) EP0000058A1 (es)
JP (1) JPS544963A (es)
DE (1) DE2726084A1 (es)
ES (1) ES470664A1 (es)
IT (1) IT7824356A0 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924185A1 (de) * 1979-06-15 1981-01-08 Bayer Ag Einrichtung zum kontinuierlichen herstellen von schaumstoffbloecken oder schaumstoffbahnen
DE2924183A1 (de) * 1979-06-15 1980-12-18 Bayer Ag Einrichtung zum kontinuierlichen herstellen von schaumstoffbloecken oder schaumstoffbahnen
DE2924184A1 (de) * 1979-06-15 1980-12-18 Bayer Ag Einrichtung zum herstellen von endlosen schaumstoffbahnen, insbesondere hartschaumstoffbahnen
US4267134A (en) * 1979-09-24 1981-05-12 The Upjohn Company Method and apparatus for smoothing foamed plastic core panelboard surface
EP0032624A1 (en) * 1980-01-17 1981-07-29 Imperial Chemical Industries Plc Apparatus and method for the continuous manufacture of foam board
FR2502541A1 (fr) * 1981-03-24 1982-10-01 Poncet Jean Procede et dispositif pour fabriquer des bandes de mousse de polymeres et produit obtenu
GB8314010D0 (en) * 1983-05-20 1983-06-29 Unifoam Ag Polymeric foam
USRE33590E (en) * 1983-12-14 1991-05-21 Edap International, S.A. Method for examining, localizing and treating with ultrasound
GB9014331D0 (en) * 1990-06-27 1990-08-15 Bareuter Gerd Manufacture of polymeric foam
US5512222A (en) * 1995-03-15 1996-04-30 Foamex L.P. Method of using a chilled trough for producing slabs of polyurethane foam
GB0019507D0 (en) * 2000-08-08 2000-09-27 Cannon Viking Limited Foam plastics method and machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3553300A (en) * 1968-07-10 1971-01-05 Tenneco Chem Process for controlling the upper surface contour of foamable polyurethane during expansion in an open top mold

Also Published As

Publication number Publication date
EP0000058A1 (de) 1978-12-20
IT7824356A0 (it) 1978-06-08
DE2726084A1 (de) 1979-01-04
JPS544963A (en) 1979-01-16

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