ES379422A1 - Process and apparatus for levelling a foam-forming reaction mixture continuously applied to a travelling support - Google Patents

Process and apparatus for levelling a foam-forming reaction mixture continuously applied to a travelling support

Info

Publication number
ES379422A1
ES379422A1 ES379422A ES379422A ES379422A1 ES 379422 A1 ES379422 A1 ES 379422A1 ES 379422 A ES379422 A ES 379422A ES 379422 A ES379422 A ES 379422A ES 379422 A1 ES379422 A1 ES 379422A1
Authority
ES
Spain
Prior art keywords
reaction mixture
levelling
support
foam
continuously applied
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
ES379422A
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.)
Maschinenfabrik Hennecke GmbH
Hennecke GmbH
Original Assignee
Maschinenfabrik Hennecke GmbH
Hennecke GmbH
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 Maschinenfabrik Hennecke GmbH, Hennecke GmbH filed Critical Maschinenfabrik Hennecke GmbH
Publication of ES379422A1 publication Critical patent/ES379422A1/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
    • B29C44/467—Foam spreading or levelling devices
    • 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
    • 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
    • B29L2009/00—Layered products

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A process for levelling off a foam forming reaction mixture which is continuously applied to a travelling support comprises imparting vibrations to the liquid mixture perpendicularly of the support. Apparatus for levelling off the reaction mixture 4 on a support 3 comprises a body 5 vibratable perpendicularly to the support and located in the region where the reaction mixture is still liquid. A foil 7, fed between rollers 6, is applied between double conveyors 9 when the mixture has reacted to form a foam. The reagents are fed from separate storage tanks to a mixing head 1 and applied to the substrate 3 by a nozzle 2. In modifications the body 5 can be replaced by a doctor blade or roller which is vibrated and is either in contact with the liquid coating or presses the upper foil 7 on to the surface of the liquid coating.
ES379422A 1969-05-08 1970-05-08 Process and apparatus for levelling a foam-forming reaction mixture continuously applied to a travelling support Expired ES379422A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691923531 DE1923531A1 (en) 1969-05-08 1969-05-08 Method and device for leveling a foam-forming reaction mixture continuously applied to a running surface

Publications (1)

Publication Number Publication Date
ES379422A1 true ES379422A1 (en) 1972-10-16

Family

ID=5733640

Family Applications (1)

Application Number Title Priority Date Filing Date
ES379422A Expired ES379422A1 (en) 1969-05-08 1970-05-08 Process and apparatus for levelling a foam-forming reaction mixture continuously applied to a travelling support

Country Status (6)

Country Link
JP (1) JPS4812182B1 (en)
BR (1) BR7018871D0 (en)
DE (1) DE1923531A1 (en)
ES (1) ES379422A1 (en)
FR (1) FR2042497A1 (en)
GB (1) GB1267313A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446165A1 (en) * 1979-01-15 1980-08-08 Stratifies Ste Indle IMPROVEMENTS IN LIQUID MIXTURE DISTRIBUTOR DEVICES, PARTICULARLY IN PLANTS FOR THE CONTINUOUS MANUFACTURE OF PANELS OF EXPANDABLE SYNTHETIC MATERIAL
DE3063426D1 (en) * 1979-05-31 1983-07-07 Ici Plc Apparatus for the continuous manufacture of foam board
DE2924184A1 (en) * 1979-06-15 1980-12-18 Bayer Ag DEVICE FOR PRODUCING ENDLESS FOAM SHEETS, IN PARTICULAR HARD FOAM SHEETS
DE2952234A1 (en) * 1979-12-22 1981-07-02 Varta Batterie METHOD AND DEVICE FOR DOSING PASTE APPLIED ON TAPE-SHAPED MATERIAL
DE3620317A1 (en) * 1986-06-18 1987-12-23 Bayer Ag METHOD AND DOUBLE CONVEYOR TAPE FOR CONTINUOUSLY PRODUCING FOAM LINES COATED WITH COATING LAYERS
DE102004042270A1 (en) * 2004-09-01 2006-03-02 Hennecke Gmbh Production of sandwich panels comprises foaming reactive mixture between lower and upper cover sheet, guides being positioned above upper sheet, which is not applied until foam level has reached them

Also Published As

Publication number Publication date
DE1923531A1 (en) 1970-11-12
FR2042497A1 (en) 1971-02-12
JPS4812182B1 (en) 1973-04-18
BR7018871D0 (en) 1973-02-22
GB1267313A (en) 1972-03-15

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