| 发明名称 |
3-Hydroxybutyric acid polymers |
| 摘要 |
A solvent-free preform of a 3-hydroxybutyric acid polymer is subjected to a compression step to reduce its thickness by at least 5% and the compressed preform is then drawn uni- or bi- axially to induce orientation.
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| 申请公布号 |
US4427614(A) |
申请公布日期 |
1984.01.24 |
| 申请号 |
US19820434229 |
申请日期 |
1982.10.14 |
| 申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BARHAM, PETER J.;HOLMES, PAUL A. |
| 分类号 |
C07C17/16;C07C29/147;C07C45/30;C07C405/00;C07D267/10;C07D295/096;C07D295/112;C07D295/155;C07D307/935;C07D309/12;C07D311/00;C07D333/12;C07D333/16;C07D333/22;C07D333/24;D01F6/62;(IPC1-7):D01D5/12 |
主分类号 |
C07C17/16 |
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