ZA901890B - Process for preparing multihardness foam articles - Google Patents
Process for preparing multihardness foam articlesInfo
- Publication number
- ZA901890B ZA901890B ZA901890A ZA901890A ZA901890B ZA 901890 B ZA901890 B ZA 901890B ZA 901890 A ZA901890 A ZA 901890A ZA 901890 A ZA901890 A ZA 901890A ZA 901890 B ZA901890 B ZA 901890B
- Authority
- ZA
- South Africa
- Prior art keywords
- outlets
- mould
- foam
- dispensing
- preparing
- Prior art date
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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
- B29C44/0476—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other by pouring more than one composition into an open mould
-
- 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
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
-
- 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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/10—Feeding of the material to be moulded, e.g. into a mould cavity of several materials
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/24—Feeding the material into the mould
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Molding Of Porous Articles (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898906297A GB8906297D0 (en) | 1989-03-18 | 1989-03-18 | Process for preparing multihardness foam articles |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA901890B true ZA901890B (en) | 1991-11-27 |
Family
ID=10653624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA901890A ZA901890B (en) | 1989-03-18 | 1990-03-12 | Process for preparing multihardness foam articles |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0393827B1 (xx) |
JP (1) | JPH0761654B2 (xx) |
KR (1) | KR0141686B1 (xx) |
AT (1) | ATE89783T1 (xx) |
AU (1) | AU624226B2 (xx) |
BR (1) | BR9001259A (xx) |
CA (1) | CA2012410C (xx) |
DE (1) | DE69001711T2 (xx) |
ES (1) | ES2040556T3 (xx) |
GB (1) | GB8906297D0 (xx) |
NZ (1) | NZ232919A (xx) |
ZA (1) | ZA901890B (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200484045Y1 (ko) | 2015-04-29 | 2017-07-25 | 한경희 | 초간편 솔라캡 벨트 전동보행기 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4073839A (en) * | 1976-04-19 | 1978-02-14 | The Goodyear Tire & Rubber Company | Method of zone pouring foam products |
JPS62105612A (ja) * | 1985-11-05 | 1987-05-16 | Bridgestone Corp | 積層構造を有する発泡体製品の製造方法 |
FR2598967B1 (fr) * | 1986-05-23 | 1988-11-25 | Roth Sa Freres | Procede de fabrication de matelassures moulees en mousse de polyurethane comportant plusieurs zones de souplesses differentes et matelassures ainsi realisees |
DE3638205A1 (de) * | 1986-11-08 | 1988-05-11 | Bayer Ag | Verfahren zum herstellen von formteilen, insbesondere polstern, aus mindestens zwei schaumstoffe, insbesondere polyurethan-schaumstoffe, unterschiedlicher elastizitaet bzw. haerte bildenden, fliessfaehigen reaktionsgemischen und anwendung dieses verfahrens fuer die herstellung von fahrzeugsitzpolstern mit seitlichen wangen |
GB8627815D0 (en) * | 1986-11-20 | 1986-12-17 | Bp Chem Int Ltd | Preparing polyurethane foams |
-
1989
- 1989-03-18 GB GB898906297A patent/GB8906297D0/en active Pending
-
1990
- 1990-03-08 DE DE90302512T patent/DE69001711T2/de not_active Expired - Fee Related
- 1990-03-08 ES ES199090302512T patent/ES2040556T3/es not_active Expired - Lifetime
- 1990-03-08 EP EP90302512A patent/EP0393827B1/en not_active Expired - Lifetime
- 1990-03-08 AT AT90302512T patent/ATE89783T1/de active
- 1990-03-12 ZA ZA901890A patent/ZA901890B/xx unknown
- 1990-03-14 NZ NZ232919A patent/NZ232919A/en unknown
- 1990-03-16 AU AU51409/90A patent/AU624226B2/en not_active Ceased
- 1990-03-16 CA CA002012410A patent/CA2012410C/en not_active Expired - Fee Related
- 1990-03-16 JP JP2064499A patent/JPH0761654B2/ja not_active Expired - Lifetime
- 1990-03-17 KR KR1019900003612A patent/KR0141686B1/ko not_active IP Right Cessation
- 1990-03-19 BR BR909001259A patent/BR9001259A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NZ232919A (en) | 1991-12-23 |
JPH0761654B2 (ja) | 1995-07-05 |
GB8906297D0 (en) | 1989-05-04 |
JPH02274510A (ja) | 1990-11-08 |
CA2012410C (en) | 1994-11-15 |
CA2012410A1 (en) | 1990-09-18 |
DE69001711D1 (de) | 1993-07-01 |
AU624226B2 (en) | 1992-06-04 |
KR900014117A (ko) | 1990-10-22 |
ES2040556T3 (es) | 1993-10-16 |
EP0393827A1 (en) | 1990-10-24 |
KR0141686B1 (ko) | 1998-07-01 |
EP0393827B1 (en) | 1993-05-26 |
BR9001259A (pt) | 1991-03-26 |
ATE89783T1 (de) | 1993-06-15 |
DE69001711T2 (de) | 1993-10-07 |
AU5140990A (en) | 1990-09-20 |
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