| 发明名称 |
Color developer for pressure-sensitive copying paper |
| 摘要 |
A color developer for pressure-sensitive copying paper is prepared by mixing a polyvalent metal salt of a para-substituted difunctional phenol-aldehyde condensate and a tri- or higher-functional phenol-aldehyde condensate and/or a polyvalent metal modified tri- or higher-functional phenol-aldehyde condensate.
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| 申请公布号 |
US4409374(A) |
申请公布日期 |
1983.10.11 |
| 申请号 |
US19820342538 |
申请日期 |
1982.01.25 |
| 申请人 |
SUMITOMO DUREZ COMPANY, LTD. |
发明人 |
KIKUGA, TOYOJI;HIRAI, KOJI |
| 分类号 |
B41M5/155;C08G8/24;C08L61/06;(IPC1-7):C08L61/06;C08L61/10;C08L61/14 |
主分类号 |
B41M5/155 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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