| 发明名称 |
Pressure-sensitive copying paper sheets |
| 摘要 |
Pressure-sensitive copying paper containing a solution of a dye-precursor agent in microencapsulated form, wherein the dye-precursor agent is dissolved in a hydrophobic organic solvent and encapsulated in capsules composed of the polyaddition product of a diisocyanate of Formula (I) <IMAGE> (I) wherein R represents a divalent aliphatic radical, and a diamine.
|
| 申请公布号 |
US4253682(A) |
申请公布日期 |
1981.03.03 |
| 申请号 |
US19790020074 |
申请日期 |
1979.03.13 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
BAATZ, GUENTHER;SCHAEFER, WALTER;FINDEISEN, KURT;DAHM, MANFRED |
| 分类号 |
B01J13/16;B41M5/165;C07D273/04;C08G18/78;(IPC1-7):B41M5/16;B41M5/22 |
主分类号 |
B01J13/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
