DE69027768T2 - Schaumstoffherstellung - Google Patents
SchaumstoffherstellungInfo
- Publication number
- DE69027768T2 DE69027768T2 DE69027768T DE69027768T DE69027768T2 DE 69027768 T2 DE69027768 T2 DE 69027768T2 DE 69027768 T DE69027768 T DE 69027768T DE 69027768 T DE69027768 T DE 69027768T DE 69027768 T2 DE69027768 T2 DE 69027768T2
- Authority
- DE
- Germany
- Prior art keywords
- foam
- wall
- cooling
- core
- thermoplastic material
- 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 - Lifetime
Links
- 239000006260 foam Substances 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 239000004604 Blowing Agent Substances 0.000 claims abstract description 34
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 26
- 239000003570 air Substances 0.000 claims description 21
- 239000012815 thermoplastic material Substances 0.000 claims description 15
- 239000004793 Polystyrene Substances 0.000 claims description 13
- 229920002223 polystyrene Polymers 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 6
- 239000006261 foam material Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- ALKCLFLTXBBMMP-UHFFFAOYSA-N 3,7-dimethylocta-1,6-dien-3-yl hexanoate Chemical group CCCCCC(=O)OC(C)(C=C)CCC=C(C)C ALKCLFLTXBBMMP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- LZJUZSYHFSVIGJ-UHFFFAOYSA-N ditridecyl hexanedioate Chemical compound CCCCCCCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCCCCCCC LZJUZSYHFSVIGJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012080 ambient air Substances 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims 4
- 230000001413 cellular effect Effects 0.000 claims 2
- 239000004088 foaming agent Substances 0.000 claims 2
- 229920003002 synthetic resin Polymers 0.000 claims 2
- 239000000057 synthetic resin Substances 0.000 claims 2
- 239000007789 gas Substances 0.000 abstract description 34
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000155 melt Substances 0.000 abstract description 9
- 229920001169 thermoplastic Polymers 0.000 abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 9
- 229920006327 polystyrene foam Polymers 0.000 abstract description 8
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract description 6
- 239000002667 nucleating agent Substances 0.000 abstract description 4
- 239000011521 glass Substances 0.000 abstract description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract description 3
- 235000013305 food Nutrition 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 229920005990 polystyrene resin Polymers 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 33
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 26
- 230000000996 additive effect Effects 0.000 description 23
- 150000001335 aliphatic alkanes Chemical class 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000001569 carbon dioxide Substances 0.000 description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect 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
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
- B29C44/3419—Quick 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3402—Details of processes or apparatus for reducing environmental damage or for working-up compositions comprising inert blowing agents or biodegradable 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- 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
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
-
- 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
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5609—Purging of residual gas, e.g. noxious or explosive blowing agents
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7132—Bowls, Cups, Glasses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/744—Labels, badges, e.g. marker sleeves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Biodiversity & Conservation Biology (AREA)
- Physics & Mathematics (AREA)
- Environmental Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Molding Of Porous Articles (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Compounds Of Unknown Constitution (AREA)
- Luminescent Compositions (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Color Television Image Signal Generators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/538,291 US5082608A (en) | 1990-06-14 | 1990-06-14 | Polystyrene foam sheet manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69027768D1 DE69027768D1 (de) | 1996-08-14 |
| DE69027768T2 true DE69027768T2 (de) | 1997-02-13 |
Family
ID=24146279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69027768T Expired - Lifetime DE69027768T2 (de) | 1990-06-14 | 1990-07-28 | Schaumstoffherstellung |
Country Status (12)
| Country | Link |
|---|---|
| US (4) | US5082608A (cg-RX-API-DMAC7.html) |
| EP (1) | EP0461298B1 (cg-RX-API-DMAC7.html) |
| JP (1) | JPH0764005B2 (cg-RX-API-DMAC7.html) |
| CN (2) | CN1057228A (cg-RX-API-DMAC7.html) |
| AT (1) | ATE140181T1 (cg-RX-API-DMAC7.html) |
| BR (1) | BR9003603A (cg-RX-API-DMAC7.html) |
| CA (1) | CA2020868C (cg-RX-API-DMAC7.html) |
| DE (1) | DE69027768T2 (cg-RX-API-DMAC7.html) |
| FI (1) | FI903494L (cg-RX-API-DMAC7.html) |
| NZ (1) | NZ234413A (cg-RX-API-DMAC7.html) |
| TW (1) | TW205532B (cg-RX-API-DMAC7.html) |
| ZA (1) | ZA905560B (cg-RX-API-DMAC7.html) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015000393A1 (de) | 2014-01-21 | 2015-07-23 | Frank Becher | Verfahren zur Herstellung von geschlossen-porigen Erzeugnissen mit hohlen Zellen, mittels dessen der Druck in den Zellen kontrolliert während des Aufschäumens erhöht oder reduziert werden kann, sowie Erzeugnisse, die nach diesem Verfahren hergestellt werden |
| WO2023194847A1 (en) * | 2022-04-04 | 2023-10-12 | Flooring Industries Limited, Sarl | Method and apparatus for manufacturing an extruded sheet |
Families Citing this family (84)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4011003A1 (de) * | 1990-04-05 | 1991-10-10 | Gerro Plast Gmbh | Verfahren zur herstellung von geschaeumten polystyrolfolien |
| US5082608A (en) * | 1990-06-14 | 1992-01-21 | Owens-Illinois Plastic Products Inc. | Polystyrene foam sheet manufacture |
| US5215691A (en) * | 1990-09-05 | 1993-06-01 | The Dow Chemical Company | Method of forming a coextruded foam composite |
| DE4036991A1 (de) * | 1990-11-20 | 1992-05-21 | Linde Ag | Verfahren zur verwendung inerter treibmittel bei der herstellung aufgeschaeumter kunststoffe |
| US5158986A (en) | 1991-04-05 | 1992-10-27 | Massachusetts Institute Of Technology | Microcellular thermoplastic foamed with supercritical fluid |
| US5322664A (en) * | 1993-02-02 | 1994-06-21 | Owens-Illinois Labels Inc. | Clear film extrusion from an annular die |
| US5411683B1 (en) * | 1993-08-20 | 2000-08-01 | Sweetheart Cup Co | Method for making thermoplastic foam with combined 1,1-difluoroethane and co2 blowing agent |
| US5866053A (en) * | 1993-11-04 | 1999-02-02 | Massachusetts Institute Of Technology | Method for providing continuous processing of microcellular and supermicrocellular foamed materials |
| EP0667234B1 (en) * | 1994-02-15 | 1998-05-06 | Owens-Illinois Labels Inc. | Multilayer label material |
| US5861201A (en) * | 1994-02-15 | 1999-01-19 | Owens-Illinois Labels Inc. | Multilayer label material |
| US5629352A (en) * | 1995-04-24 | 1997-05-13 | Matsushita Electric Industrial Co., Ltd. | Solvent for polystyrene, method for reducing volume of polystyrene foam and method for recycling polystyrene foam |
| WO1997006935A1 (en) * | 1995-08-14 | 1997-02-27 | Massachusetts Institute Of Technology | Gear throttle as a nucleation device in a continuous microcellular extrusion system |
| US5688449A (en) * | 1995-10-02 | 1997-11-18 | Nitech Corporation | Method of forming and extruding an additive-coated resin composition |
| US6884377B1 (en) | 1996-08-27 | 2005-04-26 | Trexel, Inc. | Method and apparatus for microcellular polymer extrusion |
| WO1998008667A2 (en) * | 1996-08-27 | 1998-03-05 | Trexel, Inc. | Method and apparatus for microcellular polymer extrusion |
| US6884823B1 (en) | 1997-01-16 | 2005-04-26 | Trexel, Inc. | Injection molding of polymeric material |
| US6042907A (en) * | 1997-08-28 | 2000-03-28 | Owens-Illinois Labels Inc. | Coextrusion of multilayer film for container sleeve labels |
| US6074678A (en) * | 1998-03-10 | 2000-06-13 | Owens-Illinois Labels Inc. | Plastic sheet base for packaging bacon |
| US6123881A (en) * | 1998-09-16 | 2000-09-26 | Owens Corning Fiberglas Technology, Inc. | Process for producing extruded foam products having polystyrene blends with high levels of CO2 as a blowing agent |
| US6093352A (en) * | 1998-09-16 | 2000-07-25 | Owens Corning Fiberglas Technology, Inc. | Process for producing foam by monitoring key process parameters |
| US6187831B1 (en) | 1998-09-16 | 2001-02-13 | Owens Corning Fiberglas Technology, Inc. | Process for producing extruded foam products with higher levels of CO2 as a blowing agent |
| KR100595337B1 (ko) | 1998-10-21 | 2006-07-03 | 오웬스 코닝 | 압출 발포체의 제조 방법 |
| EP1512509B1 (en) * | 1998-11-04 | 2008-10-08 | Trexel, Inc. | Apparatus for and method of foam molding |
| PT1022303E (pt) * | 1999-01-20 | 2001-10-30 | Poliglas Sa | Processo e aparelho para produzir espuma de polistireno e blocos e placas produzidos com a referida espuma |
| US6391931B1 (en) * | 1999-04-28 | 2002-05-21 | 3M Innovative Properties Co | Uniform small cell foams and a continuous process for making same |
| PL352489A1 (en) * | 1999-07-16 | 2003-08-25 | Wavin Bv | Method for forming an article comprising closed-cell microfoam from thermoplastic |
| US6576174B1 (en) * | 2000-01-27 | 2003-06-10 | Industrial Thermo Polymers Limited | Residual gas extraction process |
| US6550938B2 (en) * | 2000-02-09 | 2003-04-22 | Lexalite International Corporation | Lighting fixture employing a partially reflective partially transmittive polymeric reflector |
| US7273629B2 (en) * | 2000-11-28 | 2007-09-25 | Cryovac, Inc. | Meat package with reduced leaker rates |
| JP2002316351A (ja) * | 2001-02-15 | 2002-10-29 | Sumitomo Chem Co Ltd | 多層発泡シートの製造方法 |
| JP3530154B2 (ja) * | 2001-07-17 | 2004-05-24 | 住友電工ファインポリマー株式会社 | ポリエチレン熱収縮チューブ |
| US6675991B2 (en) | 2001-08-20 | 2004-01-13 | Graco Minnesota Inc. | Uni-drum ram plate for high viscosity materials |
| US20030080191A1 (en) | 2001-10-26 | 2003-05-01 | Allen Lubow | Method and apparatus for applying bar code information to products during production |
| AU2002366245A1 (en) | 2001-12-17 | 2003-06-30 | International Barcode Corporation | Double-sided bar code doubling as a single bar code |
| US7951449B2 (en) * | 2002-06-27 | 2011-05-31 | Wenguang Ma | Polyester core materials and structural sandwich composites thereof |
| US7144532B2 (en) * | 2002-10-28 | 2006-12-05 | Trexel, Inc. | Blowing agent introduction systems and methods |
| EP1484149A1 (fr) * | 2003-06-05 | 2004-12-08 | Nmc S.A. | Procédé pour la production continue de profilés pleins, creux ou ouverts |
| CA2435144C (en) * | 2003-07-15 | 2010-06-15 | Beaver Plastics Ltd. | Top dressing for seedling containers |
| JP4573505B2 (ja) * | 2003-07-24 | 2010-11-04 | 日東電工株式会社 | 樹脂発泡体の製造方法及び樹脂発泡体 |
| US7430837B2 (en) * | 2003-08-14 | 2008-10-07 | Bfs Diversified Products, Llc. | Membrane with mechanical securement attached |
| US9359481B2 (en) | 2003-11-26 | 2016-06-07 | Owens Corning Intellectual Capital, Llc | Thermoplastic foams and method of forming them using nano-graphite |
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- 1990-07-11 CA CA002020868A patent/CA2020868C/en not_active Expired - Lifetime
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- 1990-07-25 JP JP2195102A patent/JPH0764005B2/ja not_active Expired - Lifetime
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- 1990-07-28 EP EP90114543A patent/EP0461298B1/en not_active Expired - Lifetime
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015000393A1 (de) | 2014-01-21 | 2015-07-23 | Frank Becher | Verfahren zur Herstellung von geschlossen-porigen Erzeugnissen mit hohlen Zellen, mittels dessen der Druck in den Zellen kontrolliert während des Aufschäumens erhöht oder reduziert werden kann, sowie Erzeugnisse, die nach diesem Verfahren hergestellt werden |
| WO2023194847A1 (en) * | 2022-04-04 | 2023-10-12 | Flooring Industries Limited, Sarl | Method and apparatus for manufacturing an extruded sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE140181T1 (de) | 1996-07-15 |
| US5925450A (en) | 1999-07-20 |
| AU627337B2 (en) | 1992-08-20 |
| CA2020868C (en) | 1998-12-29 |
| JPH0449021A (ja) | 1992-02-18 |
| TW205532B (cg-RX-API-DMAC7.html) | 1993-05-11 |
| US5082608A (en) | 1992-01-21 |
| EP0461298B1 (en) | 1996-07-10 |
| BR9003603A (pt) | 1991-12-17 |
| CN1057228A (zh) | 1991-12-25 |
| AU5896290A (en) | 1991-12-19 |
| DE69027768D1 (de) | 1996-08-14 |
| FI903494A0 (fi) | 1990-07-10 |
| US5674602A (en) | 1997-10-07 |
| ZA905560B (en) | 1991-05-29 |
| EP0461298A1 (en) | 1991-12-18 |
| JPH0764005B2 (ja) | 1995-07-12 |
| FI903494A7 (fi) | 1991-12-15 |
| CA2020868A1 (en) | 1991-12-15 |
| FI903494L (fi) | 1991-12-15 |
| NZ234413A (en) | 1992-05-26 |
| US5443769A (en) | 1995-08-22 |
| CN1106733A (zh) | 1995-08-16 |
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