FR1601109A - Continuous production of filled or unfilled - polyurethane foam slabs - Google Patents

Continuous production of filled or unfilled - polyurethane foam slabs

Info

Publication number
FR1601109A
FR1601109A FR1601109DA FR1601109A FR 1601109 A FR1601109 A FR 1601109A FR 1601109D A FR1601109D A FR 1601109DA FR 1601109 A FR1601109 A FR 1601109A
Authority
FR
France
Prior art keywords
foam
belts
unfilled
filled
polyurethane foam
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1601109A publication Critical patent/FR1601109A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/30—Expanding the moulding material between endless belts or rollers
    • 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)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Expansion occurs between endless bands mounted on drums whose rectilinear superposed horizontal zones move parallel at the same speed and can oppose each other with a pressure perp. to their surface of several kg/cm2. The lower belt is longer than the upper and overlaps towards the input of the machine. The mixed foam components one deposited regularly on the lower belt as near as possible to the point where the belts become parallel. The parameters are controlled so that the rising of the foam is incomplete at the moment the belts become parallel and further on the foam contacts the upper belt and presses on both belts, which cannot mover apart, giving const. slab thickness. The advancing speed is such that expansion terminates and the sheet of rigid foam is cut off by sawing or slicing.
FR1601109D 1968-07-17 1968-07-17 Continuous production of filled or unfilled - polyurethane foam slabs Expired FR1601109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR159579 1968-07-17

Publications (1)

Publication Number Publication Date
FR1601109A true FR1601109A (en) 1970-08-10

Family

ID=8652710

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1601109D Expired FR1601109A (en) 1968-07-17 1968-07-17 Continuous production of filled or unfilled - polyurethane foam slabs

Country Status (1)

Country Link
FR (1) FR1601109A (en)

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Legal Events

Date Code Title Description
ST Notification of lapse