NO992533L - Process and low capacity plant for continuous block foam production - Google Patents

Process and low capacity plant for continuous block foam production

Info

Publication number
NO992533L
NO992533L NO992533A NO992533A NO992533L NO 992533 L NO992533 L NO 992533L NO 992533 A NO992533 A NO 992533A NO 992533 A NO992533 A NO 992533A NO 992533 L NO992533 L NO 992533L
Authority
NO
Norway
Prior art keywords
amount
foam
capacity plant
low capacity
foam production
Prior art date
Application number
NO992533A
Other languages
Norwegian (no)
Other versions
NO992533D0 (en
Inventor
Carlo Fiorentini
Anthony Charles Murr Griffiths
Original Assignee
Foaming Techn Cardio Bv
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
Priority claimed from IT96MI002478 external-priority patent/IT1286506B1/en
Priority claimed from IT96MI002599 external-priority patent/IT1289441B1/en
Application filed by Foaming Techn Cardio Bv filed Critical Foaming Techn Cardio Bv
Publication of NO992533D0 publication Critical patent/NO992533D0/en
Publication of NO992533L publication Critical patent/NO992533L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Fremgangsmåte og lavkapasitetsanlegg (10, 12, 13) for kontinuerlig frem-stil- ling av blokkskum. En MDI-basert kjemisk bestanddel blandes med en polyol og kar- bondioksid (C02) og den skummede bland- ing føres ut på et substrat (11) som beveges mot en blokkuttesone (16). Mengden C02 holdes på en verdi over 1%, fortrinnsvis 1,5-5%, av polyolbestand- delen for å oppnå en intens oppskumming og unngå renning under skummet. Formu- leringen endres ved at mengden C02 hold- es på en hovedsakelig konstant verdi mens vannmengden varieres avhengig av den ønskede totale ekspansjonsindeks og skumdensitet. Det er således mulig å anvende et anlegg av liten størrelse og med lav kapasitet, formontert i stand- ardkontainere i form av operative en- heter, for å fremstille skum med for- skjellige densiteter.Process and low capacity plant (10, 12, 13) for continuous production of block foam. An MDI-based chemical component is mixed with a polyol and carbon dioxide (CO 2) and the foamed mixture is applied to a substrate (11) which is moved towards a block cut zone (16). The amount of CO 2 is kept at a value above 1%, preferably 1.5-5%, of the polyol component to achieve intense foaming and avoid purge under the foam. The formulation is changed by keeping the amount of CO 2 at a substantially constant value while varying the amount of water depending on the desired overall expansion index and foam density. Thus, it is possible to use a small-size and low-capacity plant, pre-assembled in standard containers in the form of operational units, to produce foams with different densities.

NO992533A 1996-11-27 1999-05-26 Process and low capacity plant for continuous block foam production NO992533L (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT96MI002478 IT1286506B1 (en) 1996-11-27 1996-11-27 Production of polyurethane slab-stock foam - comprises mixing first and second chemical components, foaming the resultant mixture using carbon di:oxide and water and adding a metered quantity
IT96MI002599 IT1289441B1 (en) 1996-12-11 1996-12-11 Production of polyurethane slab-stock foam - comprises mixing first and second chemical components, foaming the resultant mixture using carbon di:oxide and water and adding a metered quantity
PCT/EP1997/006555 WO1998023429A2 (en) 1996-11-27 1997-11-24 Process and low-output plant for the continuous production of slab-stock foam

Publications (2)

Publication Number Publication Date
NO992533D0 NO992533D0 (en) 1999-05-26
NO992533L true NO992533L (en) 1999-07-09

Family

ID=26331447

Family Applications (1)

Application Number Title Priority Date Filing Date
NO992533A NO992533L (en) 1996-11-27 1999-05-26 Process and low capacity plant for continuous block foam production

Country Status (3)

Country Link
EP (1) EP0942819A2 (en)
NO (1) NO992533L (en)
WO (1) WO1998023429A2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837774A (en) * 1971-01-18 1974-09-24 Thiokol Corp Apparatus for molding rigid product from synthetic resinous material
US3867494A (en) * 1973-03-06 1975-02-18 Owens Corning Fiberglass Corp Method and apparatus for producing fiber reinforced organic foam
DE3335785A1 (en) * 1983-10-01 1985-04-11 Bayer Ag, 5090 Leverkusen METHOD AND DEVICE FOR PRODUCING A PLASTIC, IN PARTICULAR, FLOWABLE REACTION MIXTURE THAT MAKES POLYURETHANE MATERIAL
US4906672A (en) * 1988-07-29 1990-03-06 Pmc, Inc. Blowing agents for polyurethane foam
US5120770A (en) * 1989-11-29 1992-06-09 Doyle Earl N Use of liquid carbon dioxide as a blowing agent in the production of open-cell polyurethane foam
GB9027902D0 (en) * 1990-12-21 1991-02-13 Polyol Int Bv Preparation of foam-in-fabric articles
TW261577B (en) * 1993-07-14 1995-11-01 Krypton Internat Sa

Also Published As

Publication number Publication date
EP0942819A2 (en) 1999-09-22
WO1998023429A3 (en) 1998-10-29
WO1998023429A2 (en) 1998-06-04
NO992533D0 (en) 1999-05-26

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application