发明名称 |
THERMOFORMABLE MULTI-LAYER POLYPROPYLENE FOAM SHEET |
摘要 |
<p>A thermoformable, multilayer, co-extruded sheet comprising at least two separate foam polypropylene layers obtained by chemical foaming of two polyproplene resins having different flexural modulus, a "high modulus" polypropylene and a "low modulus" polypropylene. The presence of two different foam layers of polypropylene of different modulus allows obtaining a thermoformable sheet with the desired balance between thermoformability and stiffness.</p> |
申请公布号 |
EP1128953(A1) |
申请公布日期 |
2001.09.05 |
申请号 |
EP19990947455 |
申请日期 |
1999.10.04 |
申请人 |
CRYOVAC, INC. |
发明人 |
DI CESARE, GREGORIO;COLNAGHI, RENATO |
分类号 |
B32B5/32;(IPC1-7):B32B5/32 |
主分类号 |
B32B5/32 |
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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