| 发明名称 |
POLYVINYL ACETAL COPOLYMERS AND THEIR PREPARATION |
| 摘要 |
Random copolymers of vinyl acetal with comonomers having lactone or carboxylate-salt groups are disclosed. Such copolymers may exhbit improved water solubility compared to polymers of equivalent acetalization levels lacking the comonomers. |
| 申请公布号 |
EP0863921(A1) |
申请公布日期 |
1998.09.16 |
| 申请号 |
EP19960939526 |
申请日期 |
1996.11.01 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HAYES, RICHARD, ALLEN |
| 分类号 |
C08F8/28;C08F16/38;C08F216/06 |
主分类号 |
C08F8/28 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
