发明名称 |
Coextruded, hot-sealable and peelable polyester film having high peeling resistance, process for its production and its use |
摘要 |
This invention relates to a coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable from at least the APET side of an APET/CPET tray, the heatsealable and peelable top layer (A) consisting of a) 50-95% by weight of polyester and b) 5-40% by weight of a polyester-incompatible polymer (=anti-PET polymer) based on the mass of the top layer (A), wherein c) the polyester is composed of 20-95 mol % of units derived from at least one aromatic dicarboxylic acid and 5-80 mol % of units derived from at least one aliphatic dicarboxylic acid, and d) the layer thickness dA is from 1.3 to 3.0 mum. The invention further relates to a process for producing the film and to its use.
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申请公布号 |
US2005074619(A1) |
申请公布日期 |
2005.04.07 |
申请号 |
US20040953414 |
申请日期 |
2004.09.29 |
申请人 |
PEIFFER HERBERT;JANSSENS BART;KUHMANN BODO;MUELLER HARALD |
发明人 |
PEIFFER HERBERT;JANSSENS BART;KUHMANN BODO;MUELLER HARALD |
分类号 |
B32B27/36;C08L23/02;C08L25/08;C08L67/02;C08L77/00;(IPC1-7):B32B27/36 |
主分类号 |
B32B27/36 |
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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