发明名称 |
Menetelmät pakkausmateriaalin kuumasaumautuvuuden parantamiseksi sekä kuumasaumatun astian tai pakkauksen valmistamiseksi |
摘要 |
A method for improving the heat sealability of a packaging material and a method for manufacturing a heat-sealed container or package are described. The material can be polymer-coated packaging paper or cardboard, or a polymeric packaging film. The material includes a polymer layer that contains polyester, particularly polylactide, the heat sealability of which is improved by ultraviolet radiation. Polylactide is useful as such or when blended, for example, with other biodegradable polyester. The containers and packages thus manufactured include disposable drinking cups and cardboard carton and box packages. |
申请公布号 |
FI20105471(A) |
申请公布日期 |
2011.10.31 |
申请号 |
FI20100005471 |
申请日期 |
2010.04.30 |
申请人 |
STORA ENSO OYJ |
发明人 |
PENTTINEN, TAPANI;NEVALAINEN, KIMMO;KUUSIPALO, JURKKA;KOSKINEN, TAPIO;KOTKAMO, SAMI |
分类号 |
C08J3/28;B29C65/02;B29C71/04 |
主分类号 |
C08J3/28 |
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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