CA2107438A1 - Process and Apparatus for the Manufacture of a Molded Part - Google Patents
Process and Apparatus for the Manufacture of a Molded PartInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
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.
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)
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)
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)
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 |
-
1992
- 1992-10-01 DE DE19924232941 patent/DE4232941C2/en not_active Expired - Lifetime
-
1993
- 1993-07-02 EP EP93110571A patent/EP0590245A1/en not_active Withdrawn
- 1993-09-30 CA CA 2107438 patent/CA2107438C/en not_active Expired - Fee Related
- 1993-10-01 JP JP24683093A patent/JPH06190825A/en active Pending
Cited By (2)
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 |
---|---|
DE4232941C2 (en) | 1995-03-02 |
EP0590245A1 (en) | 1994-04-06 |
JPH06190825A (en) | 1994-07-12 |
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 |