发明名称 |
FOOD CONTAINER PRODUCED FROM POLYESTER RESIN FOAM SHEET |
摘要 |
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.
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申请公布号 |
CA2214570(C) |
申请公布日期 |
2000.04.11 |
申请号 |
CA19892214570 |
申请日期 |
1989.11.30 |
申请人 |
SEKISUI KASEIHIN KOGYO KABUSHIKI KAISHA |
发明人 |
TAKI, TAKESHI;AMANO, NORIO;HAYASHI, MOTOSHIGE;HIRAI, TAKAAKI |
分类号 |
B29C51/14;B65D1/28;(IPC1-7):B29C51/14 |
主分类号 |
B29C51/14 |
代理机构 |
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