CA1182259A - Pressurization and storage of thermoplastic resin foams prior to secondary expansion - Google Patents
Pressurization and storage of thermoplastic resin foams prior to secondary expansionInfo
- Publication number
- CA1182259A CA1182259A CA000416043A CA416043A CA1182259A CA 1182259 A CA1182259 A CA 1182259A CA 000416043 A CA000416043 A CA 000416043A CA 416043 A CA416043 A CA 416043A CA 1182259 A CA1182259 A CA 1182259A
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- foam
- gas
- foam material
- resin
- 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
- 239000006260 foam Substances 0.000 title claims abstract description 37
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 13
- 238000003860 storage Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000006261 foam material Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000003247 decreasing effect Effects 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004088 foaming agent Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 claims description 3
- 239000002952 polymeric resin Substances 0.000 claims description 3
- 239000004604 Blowing Agent Substances 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 43
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 24
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000004702 low-density polyethylene Substances 0.000 abstract description 5
- 229940099514 low-density polyethylene Drugs 0.000 abstract 1
- 208000007106 menorrhagia Diseases 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 19
- 239000002245 particle Substances 0.000 description 13
- 239000008188 pellet Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000005187 foaming Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000004156 Azodicarbonamide Substances 0.000 description 4
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 4
- 235000019399 azodicarbonamide Nutrition 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 4
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920001577 copolymer Chemical compound 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 210000000497 foam cell Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 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 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002666 chemical blowing agent Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000004620 low density foam Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000004580 weight loss 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
- B29C44/36—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
- B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
-
- 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
- B29C44/3461—Making or treating expandable particles
-
- 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
-
- 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
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/228—Forming foamed products
Landscapes
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (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)
- Molding Of Porous Articles (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/250,986 US4360484A (en) | 1981-04-03 | 1981-04-03 | Pressurization and storage of thermoplastic resin foams prior to secondary expansion |
| EP82110770A EP0109458B1 (en) | 1981-04-03 | 1982-11-22 | Pressurization and storage of thermoplastic resin foams prior to secondary expansion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1182259A true CA1182259A (en) | 1985-02-12 |
Family
ID=36764666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000416043A Expired CA1182259A (en) | 1981-04-03 | 1982-11-22 | Pressurization and storage of thermoplastic resin foams prior to secondary expansion |
Country Status (7)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4473665A (en) * | 1982-07-30 | 1984-09-25 | Massachusetts Institute Of Technology | Microcellular closed cell foams and their method of manufacture |
| JPS60252636A (ja) * | 1984-05-30 | 1985-12-13 | Japan Styrene Paper Co Ltd | 予備発泡粒子の製造法 |
| GB2215658A (en) * | 1988-03-17 | 1989-09-27 | Ford Motor Co | Manufacture of foamed seat cushions |
| US4804507A (en) * | 1988-04-25 | 1989-02-14 | The Dow Chemical Company | Process and apparatus for producing gas pressurized foam particles |
| AU642962B2 (en) * | 1990-02-16 | 1993-11-04 | Sekisui Kaseihin Kogyo Kabushiki Kaisha | Process of producing thermoplastic polyester series resin foamed material |
| JPH0732841B2 (ja) * | 1991-02-21 | 1995-04-12 | 豊田化学工業株式会社 | 有機溶剤の廃液処理システム |
| US6245267B1 (en) | 1999-01-25 | 2001-06-12 | Armacell, Llc | Methods for lowering the density and increasing the flexibility of thermoplastic foams |
| US7107601B2 (en) * | 2000-06-14 | 2006-09-12 | Canon Kabushiki Kaisha | Foam molding method and apparatus |
| US6846562B1 (en) * | 2003-08-06 | 2005-01-25 | Milliken & Company | Method of forming light dispersing fiber and fiber formed thereby |
| US11179871B2 (en) * | 2017-10-13 | 2021-11-23 | Dart Container Corporation | Microcellular foam sheet and processes of making and using |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2884386A (en) * | 1956-09-24 | 1959-04-28 | Dow Chemical Co | Cyclic foaming method of making cellular plastic bodies |
| US2860378A (en) * | 1957-01-09 | 1958-11-18 | Dow Chemical Co | Filling voids with plastic foam |
| US3066106A (en) * | 1958-04-07 | 1962-11-27 | Dow Chemical Co | Foaming plastics by gas permeation |
| US3227664A (en) * | 1961-12-07 | 1966-01-04 | Du Pont | Ultramicrocellular structures of crystalline organic polymer |
| US3344221A (en) * | 1963-08-16 | 1967-09-26 | Du Pont | Method for inflating or deflating closed cell foams |
| US3505249A (en) * | 1964-11-16 | 1970-04-07 | Dow Chemical Co | Fabricating expandable thermoplastic resinous material |
| NO131920L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1965-04-14 | |||
| FR93618E (fr) * | 1965-04-14 | 1969-04-25 | Saint Gobain | Procédé pour l'obtention de perles en polystyrene expansé. |
| US3381077A (en) * | 1966-01-26 | 1968-04-30 | Du Pont | Method for inflating closed cell foams |
| US3787543A (en) * | 1968-12-27 | 1974-01-22 | Du Pont | Process for the preparation of low density microcellular foam sheets exhibiting high work-to-tear values |
| US3637458A (en) * | 1968-12-27 | 1972-01-25 | Du Pont | Microcellular foam sheet |
| US3639551A (en) * | 1969-07-24 | 1972-02-01 | Irby H Leach | Cyclic method for producing low-density polystyrene foam beads |
| US3785919A (en) * | 1971-11-09 | 1974-01-15 | Du Pont | Composite filament with elastomeric core and microapertured polypropylene foam sheath and process therefor |
| IT1008525B (it) * | 1972-12-19 | 1976-11-30 | Kanegafuchi Chemical Ind | Collegamento di sci a blocco ad inerzia metodo ed apparecchio di stampag gio per resine poliolefiniche espanse |
| US4075265A (en) * | 1975-07-18 | 1978-02-21 | Monsanto Research Corporation | Process for making instant shaped foams |
-
1981
- 1981-04-03 US US06/250,986 patent/US4360484A/en not_active Expired - Lifetime
-
1982
- 1982-11-22 EP EP82110770A patent/EP0109458B1/en not_active Expired
- 1982-11-22 DE DE8282110770T patent/DE3271589D1/de not_active Expired
- 1982-11-22 AT AT82110770T patent/ATE20211T1/de not_active IP Right Cessation
- 1982-11-22 CA CA000416043A patent/CA1182259A/en not_active Expired
- 1982-11-22 JP JP57203802A patent/JPS5996928A/ja active Granted
- 1982-11-22 AU AU90782/82A patent/AU563349B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU9078282A (en) | 1984-05-31 |
| EP0109458B1 (en) | 1986-06-04 |
| JPS5996928A (ja) | 1984-06-04 |
| ATE20211T1 (de) | 1986-06-15 |
| DE3271589D1 (en) | 1986-07-10 |
| JPH0421698B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-04-13 |
| AU563349B2 (en) | 1987-07-09 |
| US4360484A (en) | 1982-11-23 |
| EP0109458A1 (en) | 1984-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |