CA2214570A1 - Food container produced from polyester resin foam sheet - Google Patents
Food container produced from polyester resin foam sheetInfo
- Publication number
- CA2214570A1 CA2214570A1 CA 2214570 CA2214570A CA2214570A1 CA 2214570 A1 CA2214570 A1 CA 2214570A1 CA 2214570 CA2214570 CA 2214570 CA 2214570 A CA2214570 A CA 2214570A CA 2214570 A1 CA2214570 A1 CA 2214570A1
- Authority
- CA
- Canada
- Prior art keywords
- polyester resin
- thermoplastic polyester
- foam sheet
- food container
- resin foam
- 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.)
- Granted
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Laminated Bodies (AREA)
Abstract
A food container produced by laminating a non-foam film of a thermoplastic resin on at least one side of a foam sheet of a thermoplastic polyester resin to obtain a laminated sheet, and molding the laminated sheet into a container in such a manner that the non-foam film is positioned inside the container. The thermoplastic polyester resin foam sheet is produced by a process comprising melting a thermoplastic polyester resin, mixing the molten resin with a blowing agent and extruding the mixture into a low-pressure zone to carry out expansion molding, characterized in that a compound having two or more acid anhydride groups per molecule, optionally together with a compound of a metal of Group I, II or III
elements of the Periodic Table is added to the thermoplastic polyester resin.
elements of the Periodic Table is added to the thermoplastic polyester resin.
Applications Claiming Priority (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP302233/88 | 1988-12-01 | ||
JP63302233A JPH02150434A (en) | 1988-12-01 | 1988-12-01 | Production of polyester-based rein foam |
JP3669/89 | 1989-01-12 | ||
JP366989A JPH02251543A (en) | 1989-01-12 | 1989-01-12 | Production of foamed polyester resin |
JP1088633A JP2528514B2 (en) | 1989-04-06 | 1989-04-06 | Thermoplastic polyester resin foam sheet |
JP88633/89 | 1989-04-06 | ||
JP1088300A JPH0688301B2 (en) | 1989-04-07 | 1989-04-07 | Method for producing heat-resistant thermoplastic polyester resin foam |
JP88300/89 | 1989-04-07 | ||
JP250049/89 | 1989-09-25 | ||
JP25004989A JPH0698982B2 (en) | 1989-09-25 | 1989-09-25 | Food container |
JP273049/89 | 1989-10-20 | ||
JP27304989A JPH03134037A (en) | 1989-10-20 | 1989-10-20 | Production of thermoplastic polyester resin foam |
CA 2004300 CA2004300C (en) | 1988-12-01 | 1989-11-30 | Process for producing polyester resin foam and polyester resin foam sheet |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2004300 Division CA2004300C (en) | 1988-12-01 | 1989-11-30 | Process for producing polyester resin foam and polyester resin foam sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2214570A1 true CA2214570A1 (en) | 1990-06-01 |
CA2214570C CA2214570C (en) | 2000-04-11 |
Family
ID=31721943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002214570A Expired - Lifetime CA2214570C (en) | 1988-12-01 | 1989-11-30 | Food container produced from polyester resin foam sheet |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2214570C (en) |
-
1989
- 1989-11-30 CA CA002214570A patent/CA2214570C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2214570C (en) | 2000-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |