发明名称 |
A METHOD FOR MANUFACTURING BIODEGRADABLE PACKAGING MATERIAL, BIODEGRADABLE PACKAGING MATERIAL, AND PACKAGES AND CONTAINERS MADE THEREOF |
摘要 |
A biodegradable packaging material, a method of manufacturing the same, as well as products made of the material wherein a multilayer coating coextruded onto a fibrous substrate the multilayer coating comprising innermost and outermost layers of a blend comprising 20-95 wt-% of a higher melt index polylactide and 5-80 wt-% of another biodegradable polymer such as polybutylene succinate, and a middle layer containing a lower melt index polylactide alone. The goal is to increase machine speed in coextrusion while maintaining good adhesiveness to the substrate and good heat-sealability of the coating. The products include disposable drinking cups and board trays, as well as sealed carton packages for solids and liquids. |
申请公布号 |
EP2911879(A1) |
申请公布日期 |
2015.09.02 |
申请号 |
EP20130849837 |
申请日期 |
2013.10.23 |
申请人 |
STORA ENSO OYJ |
发明人 |
NEVALAINEN, KIMMO;RIBU, VILLE;KUUSIPALO, JURKKA;KOTKAMO, SAMI |
分类号 |
B32B37/15;B32B27/10;B32B27/36;B65D65/46;C08L67/04;D21H19/28 |
主分类号 |
B32B37/15 |
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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