CA2185221A1 - Plastics foam and method of manufacturing same - Google Patents
Plastics foam and method of manufacturing sameInfo
- Publication number
- CA2185221A1 CA2185221A1 CA002185221A CA2185221A CA2185221A1 CA 2185221 A1 CA2185221 A1 CA 2185221A1 CA 002185221 A CA002185221 A CA 002185221A CA 2185221 A CA2185221 A CA 2185221A CA 2185221 A1 CA2185221 A1 CA 2185221A1
- Authority
- CA
- Canada
- Prior art keywords
- foam
- blowing agent
- resin
- polystyrene
- die
- 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.)
- Abandoned
Links
- 239000006260 foam Substances 0.000 title claims abstract description 110
- 239000004033 plastic Substances 0.000 title claims abstract description 9
- 229920003023 plastic Polymers 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title description 10
- 229920005989 resin Polymers 0.000 claims abstract description 72
- 239000011347 resin Substances 0.000 claims abstract description 72
- 239000004604 Blowing Agent Substances 0.000 claims abstract description 70
- 239000000203 mixture Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 40
- 238000001125 extrusion Methods 0.000 claims abstract description 27
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003345 natural gas Substances 0.000 claims abstract description 17
- 239000003000 extruded plastic Substances 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 136
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 68
- 239000004793 Polystyrene Substances 0.000 claims description 35
- 229920002223 polystyrene Polymers 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 29
- 210000004027 cell Anatomy 0.000 claims description 26
- 229920006327 polystyrene foam Polymers 0.000 claims description 18
- 239000000155 melt Substances 0.000 claims description 16
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 11
- 210000003850 cellular structure Anatomy 0.000 claims description 10
- 239000002667 nucleating agent Substances 0.000 claims description 10
- 210000002421 cell wall Anatomy 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000003303 reheating Methods 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000004795 extruded polystyrene foam Substances 0.000 claims 3
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical group [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims 1
- REDPJOZSAHHIAO-UHFFFAOYSA-N butane;pentane Chemical compound CCCC.CCCCC REDPJOZSAHHIAO-UHFFFAOYSA-N 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 238000010348 incorporation Methods 0.000 claims 1
- 238000003856 thermoforming Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 11
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 241001133184 Colletotrichum agaves Species 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 239000001273 butane Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000000051 modifying effect Effects 0.000 description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- DHMYGZIEILLVNR-UHFFFAOYSA-N 5-fluoro-1-(oxolan-2-yl)pyrimidine-2,4-dione;1h-pyrimidine-2,4-dione Chemical compound O=C1C=CNC(=O)N1.O=C1NC(=O)C(F)=CN1C1OCCC1 DHMYGZIEILLVNR-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004609 Impact Modifier Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 241000692850 Sophora cassioides Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 hydrocerol Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- C08J9/127—Mixtures of organic and inorganic 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
- 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
- B29C44/3469—Cell or pore nucleation
- B29C44/348—Cell or pore nucleation by regulating the temperature and/or the pressure, e.g. suppression of foaming until the pressure is rapidly decreased
-
- 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
-
- 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
- B29C48/834—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
- 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
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
-
- 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
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
-
- 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
- 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
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
-
- 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
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU57773/94 | 1994-03-11 | ||
| AU57773/94 | 1994-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2185221A1 true CA2185221A1 (en) | 1995-09-14 |
Family
ID=3743119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002185221A Abandoned CA2185221A1 (en) | 1994-03-11 | 1995-03-09 | Plastics foam and method of manufacturing same |
Country Status (10)
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5158986A (en) | 1991-04-05 | 1992-10-27 | Massachusetts Institute Of Technology | Microcellular thermoplastic foamed with supercritical fluid |
| DE4437860A1 (de) † | 1994-10-22 | 1996-04-25 | Basf Ag | Verfahren zur Herstellung von mikrozellulären Schäumen |
| WO1997006935A1 (en) * | 1995-08-14 | 1997-02-27 | Massachusetts Institute Of Technology | Gear throttle as a nucleation device in a continuous microcellular extrusion system |
| US6884377B1 (en) | 1996-08-27 | 2005-04-26 | Trexel, Inc. | Method and apparatus for microcellular polymer extrusion |
| AU755441B2 (en) | 1996-08-27 | 2002-12-12 | Trexel, Inc. | Method and apparatus for microcellular polymer extrusion |
| US6884823B1 (en) | 1997-01-16 | 2005-04-26 | Trexel, Inc. | Injection molding of polymeric material |
| US6235380B1 (en) | 1997-07-24 | 2001-05-22 | Trexel, Inc. | Lamination of microcellular articles |
| US6706223B1 (en) | 1997-12-19 | 2004-03-16 | Trexel, Inc. | Microcelluar extrusion/blow molding process and article made thereby |
| EP1040158B2 (en) | 1997-12-19 | 2012-04-18 | Trexel, Inc. | Microcellular foam extrusion/blow molding process and article made thereby |
| US6231942B1 (en) | 1998-01-21 | 2001-05-15 | Trexel, Inc. | Method and apparatus for microcellular polypropylene extrusion, and polypropylene articles produced thereby |
| US6322347B1 (en) * | 1999-04-02 | 2001-11-27 | Trexel, Inc. | Methods for manufacturing foam material including systems with pressure restriction element |
| KR20030034229A (ko) | 2000-09-29 | 2003-05-01 | 트레셀 인코포레이티드 | 인몰드 장식 물품 및 방법 |
| JP4563739B2 (ja) * | 2004-07-09 | 2010-10-13 | 株式会社日本製鋼所 | 押出成形品の製造方法および製造装置 |
| JP5277006B2 (ja) * | 2009-01-30 | 2013-08-28 | 積水化成品工業株式会社 | ポリスチレン系樹脂発泡体及びポリスチレン系樹脂発泡体の製造方法 |
| JP5466858B2 (ja) * | 2009-01-30 | 2014-04-09 | 積水化成品工業株式会社 | 断熱性シート及び断熱性シートの製造方法 |
| EP2918388A1 (en) * | 2014-03-10 | 2015-09-16 | Sulzer Chemtech AG | A process to recycle expandable plastic materials and an expandable or expanded plastic material obtainable thereby |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU529339B2 (en) * | 1978-11-13 | 1983-06-02 | Monsanto Company | Extruded polyalkenyl foam |
| US5286429A (en) * | 1988-06-27 | 1994-02-15 | Mobil Oil Corporation | High melt index polystyrene foam and method |
| US5250577A (en) * | 1989-08-02 | 1993-10-05 | The Dow Chemical Company | Polystyrene foam made with only carbon dioxide as a blowing agent and a process for making the same |
| DE4000542A1 (de) * | 1990-01-10 | 1991-07-11 | Basf Ag | Schaumstoffplatten mit hoher waermeformbestaendigkeit |
| BR9101167A (pt) * | 1990-04-06 | 1991-11-05 | Dow Chemical Co | Composicao polimerica espumavel,processo para produzir um produto de espuma e produto de espuma |
| DE59104659D1 (de) * | 1990-07-04 | 1995-03-30 | Basf Ag | Verfahren zur Herstellung von Schaumstoffplatten mit hoher Druckfestigkeit. |
| JPH08863B2 (ja) * | 1990-12-27 | 1996-01-10 | 積水化成品工業株式会社 | ポリスチレン系樹脂発泡体の製造方法 |
| EP0627984A1 (en) * | 1992-01-24 | 1994-12-14 | E.I. Du Pont De Nemours And Company | A flexible polymeric foam for use as an insulator and a moisture retardant and a process for producing it |
| US5332761A (en) * | 1992-06-09 | 1994-07-26 | The Dow Chemical Company | Flexible bimodal foam structures |
| US5269987A (en) * | 1992-12-22 | 1993-12-14 | Reedy Michael E | Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby |
| US5348984A (en) * | 1993-01-28 | 1994-09-20 | Sealed Air Corporation | Expandable composition and process for extruded thermoplastic foams |
-
1995
- 1995-03-09 EP EP95912079A patent/EP0749455A4/en not_active Withdrawn
- 1995-03-09 CA CA002185221A patent/CA2185221A1/en not_active Abandoned
- 1995-03-09 WO PCT/AU1995/000127 patent/WO1995024440A1/en not_active Application Discontinuation
- 1995-03-09 BR BR9507102A patent/BR9507102A/pt not_active Application Discontinuation
- 1995-03-09 NZ NZ282337A patent/NZ282337A/en not_active IP Right Cessation
- 1995-03-09 JP JP7523123A patent/JPH09509975A/ja active Pending
- 1995-03-09 AU AU19413/95A patent/AU1941395A/en not_active Abandoned
- 1995-03-10 CO CO95009620A patent/CO4410417A1/es unknown
- 1995-03-10 IN IN287MA1995 patent/IN188233B/en unknown
- 1995-03-13 PE PE1995263936A patent/PE22495A1/es not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NZ282337A (en) | 1997-11-24 |
| EP0749455A1 (en) | 1996-12-27 |
| MX9603699A (es) | 1997-12-31 |
| JPH09509975A (ja) | 1997-10-07 |
| BR9507102A (pt) | 1997-09-09 |
| WO1995024440A1 (en) | 1995-09-14 |
| AU1941395A (en) | 1995-09-25 |
| PE22495A1 (es) | 1995-08-07 |
| IN188233B (enrdf_load_stackoverflow) | 2002-08-31 |
| EP0749455A4 (en) | 1998-02-11 |
| CO4410417A1 (es) | 1997-01-09 |
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