CA2107438A1 - Process and Apparatus for the Manufacture of a Molded Part - Google Patents

Process and Apparatus for the Manufacture of a Molded Part

Info

Publication number
CA2107438A1
CA2107438A1 CA 2107438 CA2107438A CA2107438A1 CA 2107438 A1 CA2107438 A1 CA 2107438A1 CA 2107438 CA2107438 CA 2107438 CA 2107438 A CA2107438 A CA 2107438A CA 2107438 A1 CA2107438 A1 CA 2107438A1
Authority
CA
Canada
Prior art keywords
molded part
mixing head
manufacture
mixing
components
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.)
Granted
Application number
CA 2107438
Other languages
French (fr)
Other versions
CA2107438C (en
Inventor
Jurgen Hempel
Volker Sturm
Thomas Dabisch
Karim Salama
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.)
Carl Freudenberg KG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2107438A1 publication Critical patent/CA2107438A1/en
Application granted granted Critical
Publication of CA2107438C publication Critical patent/CA2107438C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • 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

Abstract

In a process for the manufacture of a molded part from a non-porous, elastic polyurethane, the starting components are individually isothermally transported from storage tanks through closed loop conduits and pumps into a mixing head. Mixing of the components is carried out in the mixing head at a pressure of at least 150 bar and the resulting mixture is then expelled from the mixing head and into a mold. This process obviates the annealing step required in conventional polyurethane casting processes for solidification of the molded part manufactured therewith, Apparatus for the carrying out of the process are also disclosed.
CA 2107438 1992-10-01 1993-09-30 Process and apparatus for the manufacture of a molded part Expired - Fee Related CA2107438C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4232941.8-16 1992-10-01
DE19924232941 DE4232941C2 (en) 1992-10-01 1992-10-01 Method and device for producing a molded part

Publications (2)

Publication Number Publication Date
CA2107438A1 true CA2107438A1 (en) 1994-04-02
CA2107438C CA2107438C (en) 1998-11-10

Family

ID=6469337

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2107438 Expired - Fee Related CA2107438C (en) 1992-10-01 1993-09-30 Process and apparatus for the manufacture of a molded part

Country Status (4)

Country Link
EP (1) EP0590245A1 (en)
JP (1) JPH06190825A (en)
CA (1) CA2107438C (en)
DE (1) DE4232941C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6079867A (en) * 1997-05-22 2000-06-27 Afros S.P.A. Self-cleaning, mixing apparatus and method for the production of polyurethane formulations
US10597483B2 (en) 2014-06-02 2020-03-24 Basf Se Compact elastomer molded parts on the basis of polyurethane

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE523536T1 (en) 2007-03-02 2011-09-15 Basf Se PRODUCTION OF HARD POLYURETHANE ELASTOMER MOLDED PARTS
TWI432306B (en) * 2008-07-08 2014-04-01 Gala Inc Method and apparatus to achieve formulation and reactive polymerization utilizing a thermally and atmospherically controlled feeding system for thermoplastic materials
IT1392172B1 (en) * 2008-12-03 2012-02-22 Afros Spa METHOD AND MIXING EQUIPMENT FOR HIGH PRESSURE, FOR LOADED POLYURETHANE RESINS

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331241A1 (en) * 1973-06-19 1975-01-09 Demag Kunststofftech METHOD AND DEVICE FOR MANUFACTURING MOLDED PARTS FROM PLASTICS MADE FROM SEVERAL COMPONENTS IN A CASTING FORM, IN WHICH THE COMPONENTS ARE MIXED WITH EACH OTHER BEFORE INTRODUCING INTO THE CASTING FORM
JPS5835467U (en) * 1981-09-02 1983-03-08 三菱電機株式会社 Vehicle electric motor idling device
US4430287A (en) * 1982-07-21 1984-02-07 The Upjohn Company Reaction injection molding of nylon
JPS6011323A (en) * 1983-07-01 1985-01-21 Matsushita Electric Ind Co Ltd Apparatus for reactive injection molding
JPS6027511A (en) * 1983-07-19 1985-02-12 ポリウレタン・テクノロジ−・オブ・アメリカ−マ−チン・スウイ−ツ・コンパニ−・インコ−ポレ−テツド High-pressure collision mixer
JPS6241083A (en) * 1985-08-19 1987-02-23 Idemitsu Kosan Co Ltd Optical memory material
US4726933A (en) * 1985-10-08 1988-02-23 Admiral Equipment Company High pressure mixing head and reactive component injection valve
JPS62121017A (en) * 1985-11-21 1987-06-02 Mitsuboshi Belting Ltd High-pressure casting machine
JP2544793B2 (en) * 1986-12-01 1996-10-16 レギプール ポリウレタン・アンラーゲン・テヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング A dosing device for dosing at least two fluid reactive components in a mixing chamber
JPS63283914A (en) * 1987-05-18 1988-11-21 Mazda Motor Corp Mixing injection machine of reactive injection molding device
JPS648335U (en) * 1987-07-01 1989-01-18
JPH0629756Y2 (en) * 1988-09-14 1994-08-10 株式会社精工舎 Panel cover mounting structure
DE4211777A1 (en) * 1991-07-04 1993-01-07 Bayer Ag METHOD FOR PRODUCING ELASTOMERIC POLYURETHANES, ESPECIALLY IN THE FORM OF SHOE SOLES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6079867A (en) * 1997-05-22 2000-06-27 Afros S.P.A. Self-cleaning, mixing apparatus and method for the production of polyurethane formulations
US10597483B2 (en) 2014-06-02 2020-03-24 Basf Se Compact elastomer molded parts on the basis of polyurethane

Also Published As

Publication number Publication date
EP0590245A1 (en) 1994-04-06
JPH06190825A (en) 1994-07-12
DE4232941C2 (en) 1995-03-02
CA2107438C (en) 1998-11-10
DE4232941A1 (en) 1994-04-07

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed