| 发明名称 |
Process of producing thermoplastic starch/polymer blends |
| 摘要 |
A process of producing a thermoplastic starch/polymer blend involves introducing dry starch into a twin-screw extruder at a first location along the extruder, introducing a plasticizer into the twin-screw extruder at a second location along the extruder downstream of the first location to form a starch paste and then gelatinizing the starch paste in the extruder to form thermoplastic starch, and, introducing dry polymer at ambient temperature into the twin-screw extruder at a third location along the extruder downstream of the second location to form a blend with the thermoplastic starch in the extruder. |
| 申请公布号 |
US9045625(B2) |
申请公布日期 |
2015.06.02 |
| 申请号 |
US201013390187 |
申请日期 |
2010.02.02 |
| 申请人 |
|
发明人 |
Huneault Michel;Li Hongbo |
| 分类号 |
B29C47/60;C08L3/02;B29B7/46;B29B7/88;C08J3/00;C08L23/02;C08L23/04;C08L23/10;C08L25/04;C08L25/06;C08L35/06;C08L67/04;C08K5/053;C08K5/1539;C08L3/00;C08L23/06;C08L23/14;C08L51/06;C08L51/08 |
主分类号 |
B29C47/60 |
| 代理机构 |
|
代理人 |
Lemay Catherine |
| 主权项 |
1. A continuous process of producing a thermoplastic starch/polymer blend comprising:
(a) introducing starch in a dry form into a twin-screw extruder at a first location along the twin-screw extruder; (b) introducing a plasticizer into the twin-screw extruder at a second location along the twin-screw extruder downstream of the first location to form a starch paste and then gelatinizing the starch paste in the twin-screw extruder to form thermoplastic starch; and (c) introducing dry solid polymer at ambient temperature into the twin-screw extruder at a third location along the twin-screw extruder downstream of the second location to form the thermoplastic starch/polymer blend with the thermoplastic starch in the extruder, wherein the formation of thermoplastic starch in step (b) and the formation of the thermoplastic starch/polymer in step (c) occurs sequentially and in the same twin-screw extruder. |
| 地址 |
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