| 发明名称 |
PROCESS FOR PRODUCING AQUEOUS DISPERSION OF BIODEGRADABLE POLYESTER |
| 摘要 |
<p>The invention provides a method for producing an aqueous biodegradable polyester dispersion and includes the step of mixing and kneading a molten biodegradable polyester, an aqueous emulsifier solution having a surface tension in terms of 1.0% by weight aqueous solution at 20 DEG C of 63 mN/m or less, and other additives according to necessity to yield an aqueous dispersion having a solid concentration of 40% by weight or more and a viscosity at 20 DEG C of 1000 mPa.s or more. The invention can provide a method for producing an aqueous biodegradable polyester dispersion that has a high solid concentration and a high viscosity and is very advantageous in practical use.</p> |
| 申请公布号 |
EP1302502(A1) |
申请公布日期 |
2003.04.16 |
| 申请号 |
EP20010938700 |
申请日期 |
2001.06.15 |
| 申请人 |
SHOWA HIGHPOLYMER CO., LTD. |
发明人 |
DOI, YUKIO;ISHIOKA, RYOJI;OKINO, YOSHIRO;IMAIZUMI, MITSUHIRO |
| 分类号 |
C08G69/44;C08G63/02;C08G63/16;C08G63/44;C08G63/64;C08G63/695;C08J3/03;C08K3/00;C08K5/00;C08L67/00;C08L101/00;C08L101/16;(IPC1-7):C08J3/03;C08L67/02;C08L77/12 |
主分类号 |
C08G69/44 |
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