发明名称 |
WATER SOLUBLE FILM |
摘要 |
Provided are water soluble films comprising a modified polyvinyl alcohol containing 2-pyrrolidone ring. The films have excellent water solubility, which can be maintained over a long period of time and under the condition of being contacted with an alkaline or acid substance, and at the same time have an appropriate touch and flexibility. |
申请公布号 |
US5102950(A) |
申请公布日期 |
1992.04.07 |
申请号 |
US19910735687 |
申请日期 |
1991.07.29 |
申请人 |
KURARAY CO., LTD. |
发明人 |
TERADA, KAZUTOSHI;MIYAZAKI, HIROTOSHI;MARUYAMA, HITOSHI |
分类号 |
C08J5/18;C08F8/12;C08F16/02;C08F216/02 |
主分类号 |
C08J5/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|