ATE144936T1 - Verfahren für das schnelle abblasen des aufschwellungsmittels von polymerschaumartikeln - Google Patents
Verfahren für das schnelle abblasen des aufschwellungsmittels von polymerschaumartikelnInfo
- Publication number
- ATE144936T1 ATE144936T1 AT90303520T AT90303520T ATE144936T1 AT E144936 T1 ATE144936 T1 AT E144936T1 AT 90303520 T AT90303520 T AT 90303520T AT 90303520 T AT90303520 T AT 90303520T AT E144936 T1 ATE144936 T1 AT E144936T1
- Authority
- AT
- Austria
- Prior art keywords
- polymer foam
- agent
- inflowing
- blowing agents
- foam articles
- Prior art date
Links
- 239000006260 foam Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 229920000642 polymer Polymers 0.000 title 1
- 239000004604 Blowing Agent Substances 0.000 abstract 3
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 231100001261 hazardous Toxicity 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- 238000010926 purge Methods 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 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
- C08J9/36—After-treatment
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/006—Degassing moulding material or draining off gas during moulding
-
- 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
-
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- 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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/02—Recovery or working-up of waste materials of solvents, plasticisers or unreacted monomers
-
- 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
- C08J9/0014—Use of organic additives
-
- 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
- C08J9/14—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 organic
- C08J9/143—Halogen containing compounds
-
- 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
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/15—Aging of foamed resin products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/340,709 US5059376A (en) | 1989-04-20 | 1989-04-20 | Methods for rapid purging of blowing agents from foamed polymer products |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE144936T1 true ATE144936T1 (de) | 1996-11-15 |
Family
ID=23334603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90303520T ATE144936T1 (de) | 1989-04-20 | 1990-04-02 | Verfahren für das schnelle abblasen des aufschwellungsmittels von polymerschaumartikeln |
Country Status (9)
Country | Link |
---|---|
US (1) | US5059376A (de) |
EP (1) | EP0393874B1 (de) |
JP (1) | JPH0699583B2 (de) |
KR (1) | KR900016331A (de) |
AT (1) | ATE144936T1 (de) |
AU (1) | AU5323990A (de) |
BR (1) | BR9001805A (de) |
CA (1) | CA2012906A1 (de) |
DE (2) | DE69029049T2 (de) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5470521A (en) * | 1989-07-19 | 1995-11-28 | Mobil Oil Corporation | Method for the thermal densification of thermoplastic articles |
KR100190474B1 (ko) * | 1991-04-30 | 1999-06-01 | 그레이스 스티븐 에스. | 천공된 플라스틱 발포체의 제조방법 |
US5585058A (en) * | 1991-04-30 | 1996-12-17 | The Dow Chemical Company | Method for providing accelerated release of a blowing agent from a plastic foam |
JP2725505B2 (ja) * | 1991-12-02 | 1998-03-11 | 株式会社日立製作所 | 廃棄物の処理方法及びその装置 |
JP2806512B2 (ja) * | 1992-04-27 | 1998-09-30 | 積水化成品工業株式会社 | 難燃性スチレン改質ポリエチレン系発泡成形体 |
US5290822A (en) * | 1992-08-27 | 1994-03-01 | Astro-Valcour, Inc. | Ultra low density polyolefin foam, foamable polyolefin compositions and process for making same |
US5225451A (en) * | 1992-08-27 | 1993-07-06 | Astro-Valcour, Inc. | Ultra low density polyolefin foam, foamable polyolefin compositions and process for making same |
US5776390A (en) * | 1992-12-15 | 1998-07-07 | Scriptoria N.V. | Method of forming boards of foam polyolefin using needle punching to release blowing agent |
US5411689A (en) * | 1993-03-25 | 1995-05-02 | Sealed Air Corporation | Method for accelerating removal of residual blowing agent from extruded flexible foams |
JP2725645B2 (ja) * | 1995-07-12 | 1998-03-11 | 株式会社日立製作所 | 廃棄物の処理装置及び処理方法 |
US5858288A (en) * | 1996-07-18 | 1999-01-12 | Bullard; Calvin P. | Method for molding expandable polystyrene foam articles |
US5993706A (en) * | 1996-08-08 | 1999-11-30 | Tenneco Protective Packaging, Inc. | Oxygenated hydrocarbon compatibilizing agent for carbon dioxide-blown polyolefinic foams |
US5698144A (en) * | 1996-08-08 | 1997-12-16 | Tenneco Protective Packaging, Inc. | Process for producing low density polyethylenic foam with atmospheric gases and polyglycols or polyglycol ethers |
US6225363B1 (en) | 1998-04-07 | 2001-05-01 | Pactiv Corporation | Foamable composition using high density polyethylene |
US6114025A (en) * | 1998-06-15 | 2000-09-05 | Tenneco Protective Packaging, Inc. | Foam and film/foam laminates using linear low density polyethylene |
US6022205A (en) * | 1998-07-06 | 2000-02-08 | Tas Enterprise, L.L.C. | System for producing and conditioning blocks of flexible polyurethane foam |
US6066393A (en) * | 1998-11-06 | 2000-05-23 | Sealed Air Corporation | Polyolefin/ionomer blend for improved properties in extruded foam products |
US6436521B1 (en) | 1998-11-06 | 2002-08-20 | Sealed Air Corporation (U.S) | Polyolefin/ionomer blend for improved properties in extruded foam products |
US6207254B1 (en) * | 1999-01-28 | 2001-03-27 | Sealed Air Corporation | Partially perforated foam |
US6576174B1 (en) * | 2000-01-27 | 2003-06-10 | Industrial Thermo Polymers Limited | Residual gas extraction process |
ATE415444T1 (de) * | 2002-02-22 | 2008-12-15 | Dow Global Technologies Inc | Kleinteilige zuschlagstoffe enthaltend thermoplastische schaumstoffe |
US7045556B2 (en) * | 2002-07-02 | 2006-05-16 | Pactiv Corporation | Polyolefin foams made with isopentane-based blowing agents |
NL1021601C2 (nl) * | 2002-10-08 | 2004-04-13 | Vertis Bv | Inrichting en werkwijze voor het vormen van producten uit massa met natuurlijke mono- of polymeren. |
GB2395948A (en) * | 2002-12-06 | 2004-06-09 | Pactiv Europ B V | Polyolefin foam |
US7166248B2 (en) * | 2003-01-03 | 2007-01-23 | Pactiv Corporation | Reduced VOC emission alkenyl aromatic polymer foams and processes |
US20080095432A1 (en) * | 2004-01-09 | 2008-04-24 | Brenner John W | Polymeric Foam with Irrecgular Surfaces Nad Preparation Thereof |
US20060052466A1 (en) * | 2004-09-03 | 2006-03-09 | Handa Yash P | Expanded and extruded thermoplastic foams made with methyl formate-based blowing agents |
US8309619B2 (en) * | 2004-09-03 | 2012-11-13 | Pactiv LLC | Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams |
WO2006080833A1 (en) * | 2005-01-31 | 2006-08-03 | Fits Holding Bv | Method of manufacturing a sandwich panel and a sandwich panel as such |
WO2007047352A2 (en) * | 2005-10-18 | 2007-04-26 | Daren Luedtke | Variable speed transmission |
JP2009523190A (ja) * | 2006-01-10 | 2009-06-18 | ダウ グローバル テクノロジーズ インコーポレイティド | 乗り物エネルギー吸収用改良発泡体 |
WO2007101034A2 (en) | 2006-02-22 | 2007-09-07 | Pactiv Corporation | Polyolefin foams made with methyl formate-based blowing agents |
US7977397B2 (en) * | 2006-12-14 | 2011-07-12 | Pactiv Corporation | Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof |
EP2089460B1 (de) * | 2006-12-14 | 2011-09-07 | Pactiv Corporation | Expandierte und extrudierte biologisch abbaubare schäume mit reduzierter emission hergestellt unter verwendung von blähmitteln auf basis von methylformiat |
US20080272596A1 (en) * | 2007-05-02 | 2008-11-06 | House Edward T | Wind turbine variable speed transmission |
JP2011213887A (ja) * | 2010-03-31 | 2011-10-27 | Sekisui Plastics Co Ltd | ポリ乳酸系樹脂発泡粒子中の揮発性有機化合物の低減方法、ポリ乳酸系樹脂発泡粒子及び発泡成形体 |
JP6128981B2 (ja) * | 2013-06-18 | 2017-05-17 | 株式会社ジェイエスピー | ポリオレフィン系樹脂発泡シートの製造方法及びポリオレフィン系樹脂発泡シートロール状物の製造方法 |
US20180001522A1 (en) * | 2016-05-31 | 2018-01-04 | Innovative Designs, Inc. | Process for forming closed cell expanded low density polyethylene foam and products formed thereby |
JP7407620B2 (ja) * | 2020-02-26 | 2024-01-04 | 株式会社ジェイエスピー | ポリエチレン系樹脂押出発泡シートの製造方法、及びポリエチレン系樹脂押出発泡シート |
EP4175999A1 (de) * | 2020-07-01 | 2023-05-10 | Evonik Operations GmbH | Pei-partikelschäume mit definiertem resttreibmittelgehalt |
Family Cites Families (45)
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NL82159C (de) * | 1952-04-17 | |||
US3067147A (en) * | 1957-08-28 | 1962-12-04 | Dow Chemical Co | Process of foaming and extruding polyethylene using 1, 2-dichlorotetrafluoroethane as the foaming agent |
NL236216A (de) * | 1958-02-17 | 1900-01-01 | ||
GB1062086A (en) * | 1963-08-16 | 1967-03-15 | Du Pont | Improvements in or relating to ultramicrocellular structures |
US3194854A (en) * | 1963-09-03 | 1965-07-13 | Dow Chemical Co | Process for producing thermoplastic foams |
US3808300A (en) * | 1967-04-24 | 1974-04-30 | Gas Chemical Co Inc | Process for the preparation of closed-cellular shaped products of olefin polymers using a mixture of a citric acid salt and a carbonate or bicarbonate as the nucleation agent |
US3558753A (en) * | 1967-11-13 | 1971-01-26 | Int Plastics | Method of producing a porous resin by withdrawing gas from a foam extrudate while it is in a semi-molten state |
US3843757A (en) * | 1967-11-15 | 1974-10-22 | Hercules Inc | Process for extruding foamed thermoplastics by utilizing an intermeshing co-rotating twin screw extruder |
BE726811R (fr) * | 1968-01-15 | 1969-07-14 | Saint Gobain | Procédé et dispositifs pour l'obtention de produits cellulaires en résine thermoplastique |
US3644230A (en) * | 1968-02-19 | 1972-02-22 | Haskon Inc | Extrusion process for polyolefin foam |
US3960792A (en) * | 1968-07-10 | 1976-06-01 | The Dow Chemical Company | Plastic foam |
BR6911030D0 (pt) * | 1968-08-03 | 1973-01-25 | Reifenhaeuser Kg | Processo para fabricar em prensas de extrusao objetos por meio de materiais sinteticos termoplasticos espumados bem como dispositivo para executar este processo |
US3657165A (en) * | 1968-10-11 | 1972-04-18 | Sekisui Chemical Co Ltd | Process for preparation of ethylenic resin foam |
US3637458A (en) * | 1968-12-27 | 1972-01-25 | Du Pont | Microcellular foam sheet |
US3640913A (en) * | 1969-04-17 | 1972-02-08 | Dow Chemical Co | Process for heating polymers with dielectric heating |
DE2132295A1 (de) * | 1971-06-29 | 1973-01-11 | Polytech Systems | Verfahren zur herstellung von schaumstoffen |
US3822331A (en) * | 1971-12-10 | 1974-07-02 | Grace W R & Co | Continuous process for making low density thermoplastic foam |
US3725320A (en) * | 1972-04-03 | 1973-04-03 | Dart Ind Inc | Aging of impregnated foamable beads |
DE2335892A1 (de) * | 1973-07-14 | 1975-01-30 | Basf Ag | Vorrichtung zur kontinuierlichen herstellung von endlosen schaumstoffstraengen |
US4110269A (en) * | 1977-01-31 | 1978-08-29 | Olefoam Corporation | Method of making polyethylene foam |
US4214054A (en) * | 1977-10-21 | 1980-07-22 | Asahi-Dow Limited | Expanded olefin polymer |
JPS5481370A (en) * | 1977-12-13 | 1979-06-28 | Japan Styrene Paper Corp | Method of making polyolefin foam |
DD289423A7 (de) * | 1978-03-08 | 1991-05-02 | Chemieanlagenbau Gmbh Leipzig-Grimma,De | Verfahren und vorrichtung zur austreibung und rueckgewinnung des porenbildners aus flaechengebilden |
EP0035467A1 (de) * | 1980-03-04 | 1981-09-09 | Schweizerische Aluminium Ag | Verfahren zur Herstellung von geschäumten Kunststoffplatten |
US4368276A (en) * | 1980-05-29 | 1983-01-11 | The Dow Chemical Company | Novel olefin polymer compositions and foamed articles prepared therefrom having improved elevated temperature dimensional stability |
US4347329A (en) * | 1980-05-29 | 1982-08-31 | The Dow Chemical Company | Expandable polyolefin compositions and polyolefin foam preparation process |
US4337321A (en) * | 1980-12-02 | 1982-06-29 | The Dow Chemical Company | Multi-staged foaming of thermoplastic resin |
JPS57109834A (en) * | 1980-12-27 | 1982-07-08 | Sekisui Plastics Co Ltd | Foamed polystyrene sheet |
US4387169A (en) * | 1981-10-01 | 1983-06-07 | The Dow Chemical Co. | Low density, extruded ethylenic polymer foams |
US4419309A (en) * | 1982-04-30 | 1983-12-06 | Mobil Oil Corporation | Polystyrene foam extrusion into a foam assisting atmosphere |
US4420448A (en) * | 1982-08-26 | 1983-12-13 | Mobil Oil Corporation | Polymer foam process |
JPS59196512A (ja) * | 1983-04-22 | 1984-11-07 | 昭和電線電纜株式会社 | 高発泡プラスチツクケ−ブルの製造方法 |
JPS604038A (ja) * | 1983-06-22 | 1985-01-10 | Sanwa Kako Kk | ポリオレフイン気泡体内部の気体の強制置換方法 |
JPS60122131A (ja) * | 1983-12-06 | 1985-06-29 | Idemitsu Petrochem Co Ltd | 熱可塑性樹脂発泡体の製造方法 |
US4531951A (en) * | 1983-12-19 | 1985-07-30 | Cellu Products Company | Method and apparatus for recovering blowing agent in foam production |
US4528300A (en) * | 1984-01-31 | 1985-07-09 | The Dow Chemical Company | Process for producing dimensionally stable polyolefin foams using environmentally acceptable blowing agent systems |
US4649001A (en) * | 1984-04-17 | 1987-03-10 | Japan Styrene Paper Corporation | Process for producing polyethylene extruded foams |
US4681715A (en) * | 1984-11-16 | 1987-07-21 | The Dow Chemical Company | Steam expandable polymeric composition and method |
US4657938A (en) * | 1985-08-26 | 1987-04-14 | Uniroyal Chemical Company, Inc. | Sprayable and foamable insulating composition |
GB8516825D0 (en) * | 1985-07-03 | 1985-08-07 | Dow Chemical Iberica Sa | Preparation of cross-linked polyethylene foams |
JPS6290223A (ja) * | 1985-10-16 | 1987-04-24 | Sekisui Plastics Co Ltd | ポリスチレン系樹脂発泡シ−トの製法 |
US4694027A (en) * | 1985-12-24 | 1987-09-15 | The Dow Chemical Company | Expandable polyolefin compositions and preparation process utilizing isobutane blowing agent |
US4663361A (en) * | 1985-12-24 | 1987-05-05 | The Dow Chemical Company | Expandable polyolefin compositions and preparation process utilizing isobutane blowing agent |
US4721588A (en) * | 1986-06-09 | 1988-01-26 | Epsilon Holdings, N.V. | Closed circuit process for the production of expanded polystyrene foam |
JPS62290735A (ja) * | 1986-06-11 | 1987-12-17 | Japan Styrene Paper Co Ltd | 不飽和ポリエステル樹脂成形用芯材 |
-
1989
- 1989-04-20 US US07/340,709 patent/US5059376A/en not_active Expired - Lifetime
-
1990
- 1990-03-23 CA CA002012906A patent/CA2012906A1/en not_active Abandoned
- 1990-04-02 EP EP90303520A patent/EP0393874B1/de not_active Expired - Lifetime
- 1990-04-02 DE DE69029049T patent/DE69029049T2/de not_active Expired - Fee Related
- 1990-04-02 DE DE199090303520T patent/DE393874T1/de active Pending
- 1990-04-02 AT AT90303520T patent/ATE144936T1/de not_active IP Right Cessation
- 1990-04-11 KR KR1019900004972A patent/KR900016331A/ko not_active Application Discontinuation
- 1990-04-12 AU AU53239/90A patent/AU5323990A/en not_active Abandoned
- 1990-04-18 BR BR909001805A patent/BR9001805A/pt not_active Application Discontinuation
- 1990-04-18 JP JP2100555A patent/JPH0699583B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0699583B2 (ja) | 1994-12-07 |
US5059376A (en) | 1991-10-22 |
DE69029049D1 (de) | 1996-12-12 |
JPH0333136A (ja) | 1991-02-13 |
EP0393874A3 (de) | 1992-06-03 |
DE69029049T2 (de) | 1997-05-15 |
BR9001805A (pt) | 1993-03-09 |
EP0393874A2 (de) | 1990-10-24 |
KR900016331A (ko) | 1990-11-13 |
CA2012906A1 (en) | 1990-10-20 |
DE393874T1 (de) | 1991-07-25 |
AU5323990A (en) | 1990-11-08 |
EP0393874B1 (de) | 1996-11-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |