发明名称 |
Packaging film, in particular a sausage casing, based on polyamide |
摘要 |
A tubular, biaxially stretch-oriented packaging film, in particular a sausage casing, comprising a polymer mixture which comprises an aliphatic polyamide, a polyterephthalic acid ester, an aromatic polyamide comprising branched aliphatic diamines having at least 7 carbon atoms and aromatic dicarboxylic acids, or aromatic diamines and aliphatic dicarboxylic acids having 5 to 11 carbon atoms and a dye. The weight amount of the aromatic polyamide is preferably equal to, and particularly preferably greater than, the weight amount of dye. A masterbatch suitable for producing the film is also disclosed. With particular advantage, the film having the above described composition can be dyed deep black or brilliant red.
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申请公布号 |
US4944970(A) |
申请公布日期 |
1990.07.31 |
申请号 |
US19890298060 |
申请日期 |
1989.01.18 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
STENGER, KARL;STRUTZEL, HANS;CRASS, GUENTHER |
分类号 |
B29C55/26;A22C13/00;B29K77/00;B29L7/00;C08J3/22;C08J5/18;C08L77/00;C08L77/06 |
主分类号 |
B29C55/26 |
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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