ES2076812T3 - Procedimiento para el control continuo del numero de celdillas de espumas de poliuretano. - Google Patents

Procedimiento para el control continuo del numero de celdillas de espumas de poliuretano.

Info

Publication number
ES2076812T3
ES2076812T3 ES93105546T ES93105546T ES2076812T3 ES 2076812 T3 ES2076812 T3 ES 2076812T3 ES 93105546 T ES93105546 T ES 93105546T ES 93105546 T ES93105546 T ES 93105546T ES 2076812 T3 ES2076812 T3 ES 2076812T3
Authority
ES
Spain
Prior art keywords
continuous control
procedure
polyurethane foam
foam cells
mixing
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 - Lifetime
Application number
ES93105546T
Other languages
English (en)
Inventor
Ulrich Wetzig
Manfred Dr Hohenhorst
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.)
Koepp AG
Original Assignee
Koepp 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 Koepp AG filed Critical Koepp AG
Application granted granted Critical
Publication of ES2076812T3 publication Critical patent/ES2076812T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404—Mixing devices specially adapted for foamable substances
    • B29B7/7409—Mixing devices specially adapted for foamable substances with supply of gas
    • B29B7/7414—Mixing devices specially adapted for foamable substances with supply of gas with rotatable stirrer, e.g. using an intermeshing rotor-stator system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404—Mixing devices specially adapted for foamable substances
    • B29B7/7433—Plants
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S521/917—Specialized mixing apparatus utilized in cell forming process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PROCEDIMIENTO PARA CONTROLAR DE FORMA CONTINUA EL NUMERO DE CELULAS EN LA PRODUCCION DE ESPUMAS DE POLIURETANO A PARTIR DE POLIOLES, ISOCIANATOS Y AGUA. LA PREMEZCLA DE LOS COMPONENTES SE EFECTUA EN UN MEZCLADOR PRINCIPAL CON PRESIONES DE INYECCION Y DE CAMARA DE MEZCLA AJUSTABLES Y EL CONTENIDO DE ISOCIANATOS SE ELEVA O REDUCE CONTINUAMENTE INMEDIATAMENTE ANTES DE LA ENTRADA DEL GAS EN EL MEZCLADOR PRINCIPAL. EL MEZCLADOR PRINCIPAL ES UN MEZCLADOR CON APERTURA Y SALIDA DE FLUIDOS POR LA PARTE SUPERIOR.
ES93105546T 1992-04-03 1993-04-03 Procedimiento para el control continuo del numero de celdillas de espumas de poliuretano. Expired - Lifetime ES2076812T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4211080 1992-04-03

Publications (1)

Publication Number Publication Date
ES2076812T3 true ES2076812T3 (es) 1995-11-01

Family

ID=6455895

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93105546T Expired - Lifetime ES2076812T3 (es) 1992-04-03 1993-04-03 Procedimiento para el control continuo del numero de celdillas de espumas de poliuretano.

Country Status (7)

Country Link
US (1) US5296517A (es)
EP (1) EP0565974B1 (es)
JP (1) JPH068262A (es)
AT (1) ATE126122T1 (es)
DE (1) DE59300442D1 (es)
DK (1) DK0565974T3 (es)
ES (1) ES2076812T3 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420168C1 (de) * 1994-06-09 1996-02-08 Hennecke Gmbh Maschf Verfahren zur Steuerung der Zellenzahl in Polyurethan-Schaumstoffen
US5525236A (en) * 1995-04-12 1996-06-11 Wilkinson; Kenneth Reverse osmosis purification of water
EP0867265A1 (en) * 1997-03-20 1998-09-30 Fabricas Lucia Antonio Betere S.A. (Flabesa) Apparatus for mixing raw materials under controlled pressure for producing polyurethane foams and the like
US20020147243A1 (en) * 2001-02-21 2002-10-10 Wheeler Ian A. Low pressure mixing of polyurethane foam
DE10151855C2 (de) * 2001-10-24 2003-11-20 Hennecke Gmbh Verfahren zur Herstellung von Polyurethan-Schaum
DE10203701C1 (de) * 2002-01-31 2003-12-04 Hennecke Gmbh Verfahren zur Herstellung von Polyurethan-Schaum mit einstellbarer Zellstruktur
DE10242101A1 (de) * 2002-09-11 2004-03-25 Hennecke Gmbh Verfahren zur Herstellung von Lunker- und Pinholefreiem Polyurethan-Blockschaum
DE10242100A1 (de) * 2002-09-11 2004-03-25 Hennecke Gmbh Verfahren zur Vermischung einer Polyol- und einer Isocyanatkomponente
EP2451866B1 (en) 2009-07-10 2018-02-21 Huntsman International LLC Homogeneous foam
US8784518B2 (en) 2011-01-17 2014-07-22 3M Innovative Properties Company Method of making polyurethane foam
CN104254402B (zh) * 2012-04-30 2017-05-31 科思创德国股份有限公司 生产发泡成型体的方法
DE102015120526B4 (de) * 2015-11-26 2017-07-13 Webasto SE Vorrichtung und Verfahren zur Aufbereitung eines flüssigen Polymergemisches
DE102019103945B4 (de) 2019-02-15 2022-04-28 Hennecke Gmbh Verfahren zur kontinuierlichen Vermischung mindestens einer Polyolkomponente mit mindestens einer Isocyanatkomponete und Rührermischer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2446089A1 (de) * 1974-09-26 1976-04-08 Siemens Ag Vorrichtung zur umsetzung von gasen oder daempfen mit fluessigkeiten oder in fluessigkeiten fein verteilten stoffen
FR2292523A1 (fr) * 1974-11-28 1976-06-25 Saint Gobain Dispositif de centrifugation pour le degazage de liquides tres visqueux
US4526907A (en) * 1983-05-07 1985-07-02 Basf Aktiengesellschaft Process and device for the preparation of a reaction mixture of at least two components for the production of foams
DE3808082A1 (de) * 1988-03-11 1989-09-21 Bayer Ag Verfahren und vorrichtung zum beladen mindestens einer fliessfaehigen reaktionskomponente mit gas, insbesondere in geringen mengen, fuer die herstellung von schaumstoffen, insbesondere polyurethanschaumstoffen
DE3818161A1 (de) * 1988-05-28 1989-12-07 Bayer Ag Verfahren und vorrichtung zum kontinuierlichen beladen mindestens einer fliessfaehigen reaktionskomponente mit gas fuer die herstellung eines schaumstoffbildenden, fliessfaehigen reaktionsgemisches
DE3920994C2 (de) * 1988-07-12 1994-08-25 Elastogran Gmbh Vorrichtung zum Herstellen eines Reaktionsgemisches aus mindestens zwei Komponenten für die Produktion von Schaumstoffen
DE3901462C1 (es) * 1989-01-19 1990-01-18 Bayer Ag, 5090 Leverkusen, De
US5154088A (en) * 1990-07-24 1992-10-13 The Dow Chemical Company Apparatuses and methods for incorporating blowing agents into liquids for the production of polymer foams and for measuring the volumetric expansion potential of mixtures thereof

Also Published As

Publication number Publication date
JPH068262A (ja) 1994-01-18
EP0565974B1 (de) 1995-08-09
US5296517A (en) 1994-03-22
DE59300442D1 (de) 1995-09-14
EP0565974A1 (de) 1993-10-20
DK0565974T3 (da) 1995-12-27
ATE126122T1 (de) 1995-08-15

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