发明名称 |
Process for producing polyester resin foam |
摘要 |
<p>A process for producing a thermoplastic polyester resin foam 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. There is also disclosed a process for producing a thermoplastic polyester resin foam comprising cooling a high-temperature foam immediately after expansion and then re-heating the foam. Further, a thermoplastic polyester resin foam sheet and a food container prepared from the foam sheet are also disclosed.</p> |
申请公布号 |
EP0552813(B1) |
申请公布日期 |
1998.04.29 |
申请号 |
EP19930102832 |
申请日期 |
1989.12.01 |
申请人 |
SEKISUI KASEIHIN KOGYO KABUSHIKI KAISHA |
发明人 |
AMANO, NORIO;TAKI, TAKESHI;HIRAI, TAKAAKI |
分类号 |
B32B5/18;B65D1/28;C08G63/20;C08J9/00;C08J9/12;C08J9/36;C08K5/1539;C08K5/41;(IPC1-7):C08J9/36 |
主分类号 |
B32B5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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