CA1053872A - Method and device for the production of articles having a non-cellular smooth skin and a cellular core from polymer materials - Google Patents
Method and device for the production of articles having a non-cellular smooth skin and a cellular core from polymer materialsInfo
- Publication number
- CA1053872A CA1053872A CA201,463A CA201463A CA1053872A CA 1053872 A CA1053872 A CA 1053872A CA 201463 A CA201463 A CA 201463A CA 1053872 A CA1053872 A CA 1053872A
- Authority
- CA
- Canada
- Prior art keywords
- cellular
- temperature
- polymer
- skin
- blowing agent
- 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
Links
- 230000001413 cellular effect Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002861 polymer material Substances 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000004604 Blowing Agent Substances 0.000 claims abstract description 18
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 11
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000006260 foam Substances 0.000 claims abstract description 4
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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
- B29C44/0407—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 regulating the temperature of the mould or parts thereof, e.g. cold mould walls inhibiting foaming of an outer layer
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/043—Skinned foam
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BG23557A BG18676A1 (US20020095090A1-20020718-M00002.png) | 1973-05-09 | 1973-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1053872A true CA1053872A (en) | 1979-05-08 |
Family
ID=3899438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA201,463A Expired CA1053872A (en) | 1973-05-09 | 1974-06-03 | Method and device for the production of articles having a non-cellular smooth skin and a cellular core from polymer materials |
Country Status (12)
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4457511A (en) * | 1982-03-15 | 1984-07-03 | William Witkowski | Plastic bowling pin and method of making the same |
| GB2139548B (en) * | 1983-05-11 | 1986-11-19 | James Watson Hendry | Injection moulding |
| IT1212799B (it) * | 1983-12-15 | 1989-11-30 | Ates Componenti Elettron | Dispositivo elettronico ad interruttore comandato per la soppressione di transitori. |
| US4935191A (en) * | 1986-10-16 | 1990-06-19 | Thomas W. Johnson | Process of insection molding with pressurized gas assist |
| GB8706204D0 (en) * | 1987-03-16 | 1987-04-23 | Peerless Cinpres Ltd | Injection moulding apparatus |
| US5032345A (en) * | 1987-07-09 | 1991-07-16 | Michael Ladney | Method of injection molding with pressurized-fluid assist and variable-volume reservoir |
| US4855094A (en) * | 1987-09-21 | 1989-08-08 | Michael Ladney | Method for the injection molding of plastic articles using fluid pressure |
| US4943407A (en) * | 1987-09-21 | 1990-07-24 | Michael Ladney | Method of and apparatus for injection molding with pressurized fluid assist |
| US5069859A (en) * | 1987-12-16 | 1991-12-03 | Milad Limited Partnership | Method of injection molding with pressurized-fluid assist |
| US4913644A (en) * | 1988-04-15 | 1990-04-03 | Michael Ladney | System for making a hollow-shaped body from molten resin by injection molding |
| US4830812A (en) * | 1988-04-15 | 1989-05-16 | Michael Ladney | Method and system for making a hollow-shaped body from molten resin by injection molding |
| US5098637A (en) * | 1988-07-11 | 1992-03-24 | Milad Limited Partnership | Process for injection molding and hollow plastic article produced thereby |
| US6053720A (en) * | 1997-09-22 | 2000-04-25 | Larry J. Winget | Mold for use in a gas-assisted injection molding system and gas pin assembly for use therein |
| US6767487B2 (en) | 2001-07-10 | 2004-07-27 | Cinpres Gas Injection Ltd. | Plastic expulsion process |
| US6899843B2 (en) | 2003-03-25 | 2005-05-31 | Lear Corporation | Plastic injection molding with moveable mold members forming speaker grill |
| US6890477B2 (en) | 2003-03-25 | 2005-05-10 | Lear Corporation | Plastic injection molded articles with hollow rib members |
| CN104647679B (zh) * | 2013-11-22 | 2018-07-17 | 法国圣戈班玻璃公司 | 形成汽车玻璃包边的方法、车窗以及模具 |
-
1973
- 1973-05-09 BG BG23557A patent/BG18676A1/xx unknown
-
1974
- 1974-05-07 IT IT7450620A patent/IT1035534B/it active
- 1974-05-08 FR FR7415901A patent/FR2228598B1/fr not_active Expired
- 1974-05-08 DD DD178369A patent/DD111323A5/xx unknown
- 1974-05-08 AT AT381174A patent/AT353471B/de active
- 1974-05-08 SE SE7406168A patent/SE402547B/xx unknown
- 1974-05-09 GB GB2065074A patent/GB1460101A/en not_active Expired
- 1974-05-09 NL NL7406286A patent/NL7406286A/xx unknown
- 1974-05-09 DE DE2422579A patent/DE2422579A1/de not_active Withdrawn
- 1974-05-09 BE BE2053599A patent/BE814758A/xx unknown
- 1974-06-03 CA CA201,463A patent/CA1053872A/en not_active Expired
- 1974-06-21 JP JP49071233A patent/JPS51576A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2422579A1 (de) | 1974-11-28 |
| DD111323A5 (US20020095090A1-20020718-M00002.png) | 1975-02-12 |
| BE814758A (fr) | 1974-09-02 |
| JPS534873B2 (US20020095090A1-20020718-M00002.png) | 1978-02-21 |
| FR2228598A1 (US20020095090A1-20020718-M00002.png) | 1974-12-06 |
| GB1460101A (en) | 1976-12-31 |
| FR2228598B1 (US20020095090A1-20020718-M00002.png) | 1976-10-15 |
| NL7406286A (US20020095090A1-20020718-M00002.png) | 1974-11-12 |
| JPS51576A (en) | 1976-01-06 |
| AT353471B (de) | 1979-11-12 |
| IT1035534B (it) | 1979-10-20 |
| BG18676A1 (US20020095090A1-20020718-M00002.png) | 1975-03-20 |
| SE402547B (sv) | 1978-07-10 |
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