发明名称 |
EXTRUSION-FOAMED MATERIAL OF HEAT-RESISTANT METHACRYLAMIDE COPOLYMER |
摘要 |
PURPOSE:To obtain the subject extrusion-foamed material imparted with excellent printability without lowering the heat-resistance and suitable as a food container for microwave oven by extrusion-foaming a copolymer composed of a specific ratio of methacrylamide, styrene and (meth)acrylic acid in the presence of a foaming agent. CONSTITUTION:The objective extrusion-foamed material free from shape-change even at a high temperature (>=80 deg.C) and having low thermal dimensional change is produced by extrusion-foaming (A) 100 pts.wt. of a methacrylamide copolymer composed of (i) 5-60mol% of methacrylamide, (ii) 39-94mol% of styrene and (iii) 0.1-20mol% of (meth)acrylic acid in the presence of (B) 2-30 pts.wt. of a foaming agent. |
申请公布号 |
JPH01319544(A) |
申请公布日期 |
1989.12.25 |
申请号 |
JP19880152607 |
申请日期 |
1988.06.20 |
申请人 |
KANEGAFUCHI CHEM IND CO LTD |
发明人 |
TAJIMA KAZUHISA;TACHIBANA HIROMITSU |
分类号 |
C08J9/04;C08F220/00;C08F220/06;C08F220/56;C08L33/24 |
主分类号 |
C08J9/04 |
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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