CA2214570A1 - Food container produced from polyester resin foam sheet - Google Patents

Food container produced from polyester resin foam sheet

Info

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
Application number
CA 2214570
Other languages
French (fr)
Other versions
CA2214570C (en
Inventor
Motoshige Hayashi
Norio Amano
Takeshi Taki
Takaaki Hirai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Kaseihin Kogyo KK
Original Assignee
Sekisui Kaseihin Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP63302233A external-priority patent/JPH02150434A/en
Priority claimed from JP366989A external-priority patent/JPH02251543A/en
Priority claimed from JP1088633A external-priority patent/JP2528514B2/en
Priority claimed from JP1088300A external-priority patent/JPH0688301B2/en
Priority claimed from JP25004989A external-priority patent/JPH0698982B2/en
Priority claimed from JP27304989A external-priority patent/JPH03134037A/en
Application filed by Sekisui Kaseihin Kogyo KK filed Critical Sekisui Kaseihin Kogyo KK
Priority claimed from CA 2004300 external-priority patent/CA2004300C/en
Publication of CA2214570A1 publication Critical patent/CA2214570A1/en
Publication of CA2214570C publication Critical patent/CA2214570C/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
CA002214570A 1988-12-01 1989-11-30 Food container produced from polyester resin foam sheet Expired - Lifetime CA2214570C (en)

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)

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