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IT1277651B1 - HIGH PRESSURE PROCEDURE AND MIXING EQUIPMENT FOR THE PRODUCTION OF PRE-EXPANDED POLYURETHANE FOAMS - Google Patents

HIGH PRESSURE PROCEDURE AND MIXING EQUIPMENT FOR THE PRODUCTION OF PRE-EXPANDED POLYURETHANE FOAMS

Info

Publication number
IT1277651B1
IT1277651B1 IT95MI001975A ITMI951975A IT1277651B1 IT 1277651 B1 IT1277651 B1 IT 1277651B1 IT 95MI001975 A IT95MI001975 A IT 95MI001975A IT MI951975 A ITMI951975 A IT MI951975A IT 1277651 B1 IT1277651 B1 IT 1277651B1
Authority
IT
Italy
Prior art keywords
production
high pressure
polyurethane foams
mixing equipment
expanded polyurethane
Prior art date
Application number
IT95MI001975A
Other languages
Italian (it)
Inventor
Carlo Fiorentini
Original Assignee
Afros Spa
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 Afros Spa filed Critical Afros Spa
Priority to IT95MI001975A priority Critical patent/IT1277651B1/en
Publication of ITMI951975A0 publication Critical patent/ITMI951975A0/it
Priority to PCT/EP1996/004070 priority patent/WO1997011824A1/en
Priority to DE29622866U priority patent/DE29622866U1/en
Publication of ITMI951975A1 publication Critical patent/ITMI951975A1/en
Application granted granted Critical
Publication of IT1277651B1 publication Critical patent/IT1277651B1/en

Links

Classifications

    • 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
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7663—Mixers with stream-impingement mixing head the mixing head having an outlet tube with a reciprocating plunger, e.g. with the jets impinging in the tube
    • B29B7/7668—Mixers with stream-impingement mixing head the mixing head having an outlet tube with a reciprocating plunger, e.g. with the jets impinging in the tube having a second tube intersecting the first one with the jets impinging in the second tube
    • 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
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
    • 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
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/726—Measuring properties of mixture, e.g. temperature or density
    • 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
    • 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
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7615—Mixers with stream-impingement mixing head characterised by arrangements for controlling, measuring or regulating, e.g. for feeding or proportioning the components
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
IT95MI001975A 1995-09-25 1995-09-25 HIGH PRESSURE PROCEDURE AND MIXING EQUIPMENT FOR THE PRODUCTION OF PRE-EXPANDED POLYURETHANE FOAMS IT1277651B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT95MI001975A IT1277651B1 (en) 1995-09-25 1995-09-25 HIGH PRESSURE PROCEDURE AND MIXING EQUIPMENT FOR THE PRODUCTION OF PRE-EXPANDED POLYURETHANE FOAMS
PCT/EP1996/004070 WO1997011824A1 (en) 1995-09-25 1996-09-18 Process and high-pressure mixing apparatus for the production of frothed polyurethane foams
DE29622866U DE29622866U1 (en) 1995-09-25 1996-09-18 High-pressure mixing device for the production of foamed polyurethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95MI001975A IT1277651B1 (en) 1995-09-25 1995-09-25 HIGH PRESSURE PROCEDURE AND MIXING EQUIPMENT FOR THE PRODUCTION OF PRE-EXPANDED POLYURETHANE FOAMS

Publications (3)

Publication Number Publication Date
ITMI951975A0 ITMI951975A0 (en) 1995-09-25
ITMI951975A1 ITMI951975A1 (en) 1997-03-25
IT1277651B1 true IT1277651B1 (en) 1997-11-11

Family

ID=11372278

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95MI001975A IT1277651B1 (en) 1995-09-25 1995-09-25 HIGH PRESSURE PROCEDURE AND MIXING EQUIPMENT FOR THE PRODUCTION OF PRE-EXPANDED POLYURETHANE FOAMS

Country Status (3)

Country Link
DE (1) DE29622866U1 (en)
IT (1) IT1277651B1 (en)
WO (1) WO1997011824A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044013A1 (en) * 2000-09-05 2002-03-14 Hennecke Gmbh Method and device for producing molded plastic parts from a flowable reaction mixture
ITMI20082103A1 (en) * 2008-11-25 2010-05-26 Afros Spa METHOD AND EQUIPMENT FOR MIXING POLYURETHANE COMPONENTS, WITH EXPANSION AGENT CONTROL.
IT201900024949A1 (en) * 2019-12-20 2021-06-20 Cannon Spa METHOD AND EQUIPMENT FOR DELIVERING A SPLIT-FREE POLYMER BLEND

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612812C3 (en) * 1976-03-25 1983-05-26 Bayer Ag, 5090 Leverkusen Mixing head for mixing at least two components which form foam when they react
DE3128913A1 (en) * 1981-07-22 1983-02-10 Maschinenfabrik Hennecke Gmbh, 5090 Leverkusen METHOD AND DEVICE FOR PRODUCING A FLOWABLE REACTION MIXTURE FROM AT LEAST TWO FLOWABLE REACTION COMPONENTS REACTING TOGETHER WITH SOLID OR FOAM
JPS58219029A (en) * 1982-06-15 1983-12-20 Achilles Corp Manufacture of polyurethane foam
EP0418585A1 (en) * 1989-08-24 1991-03-27 Dow Corning Corporation Foam mixer-applicator with foaming chamber and method of using
US5277567A (en) * 1990-03-23 1994-01-11 Krauss Maffei Ag Apparatus for mixing reactive synthetic-resin components
US5270014A (en) * 1991-03-19 1993-12-14 Krauss-Maffei Ag Apparatus for producing a foamed mass of a polyurea elastomer
DE4211458A1 (en) * 1992-04-06 1993-10-07 Hennecke Gmbh Maschf Device for producing a flowable reaction mixture from at least two flowable reaction components which react with one another to form solid material or foam

Also Published As

Publication number Publication date
ITMI951975A1 (en) 1997-03-25
WO1997011824A1 (en) 1997-04-03
DE29622866U1 (en) 1997-07-10
ITMI951975A0 (en) 1995-09-25

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Legal Events

Date Code Title Description
0001 Granted