发明名称 |
Functionalized lignin and method of producing the same |
摘要 |
In this study, commercially available softwood lignin was esterified with tall oil fatty acid (TOFA) and tested as barrier material in fiber-based packaging material. The modified lignin samples were applied with a bar coater forming an even coating on the paperboard substrate. A significant decrease in WVTR and OTR value was observed for paperboard coated with the modified lignin as well as pure TOFA used as a reference. In contrast to the TOFA coating, the modified lignin coatings exhibited a high and stable contact angle. The coating material did not affect the tensile strength of the paperboard. According to the results, the demonstration of the conversion of lignin into a value added product has been shown. Furthermore, the novel coating material shows promising properties for the development as sustainable barrier material in fiber-based packaging material to replace oil-placed barriers. |
申请公布号 |
US2014243511(A1) |
申请公布日期 |
2014.08.28 |
申请号 |
US201214348904 |
申请日期 |
2012.10.08 |
申请人 |
Teknologian tutkimuskeskus VTT |
发明人 |
Tamminen Tarja;Ropponen Tarmo;Hult Eva-Lena;Poppius-Levlin Kristiina |
分类号 |
C08H7/00 |
主分类号 |
C08H7/00 |
代理机构 |
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代理人 |
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主权项 |
1. Method of modifying lignin comprising esterifying at least a part of the hydroxyl groups present in the lignin with a fatty acid composition. |
地址 |
VTT FI |