| 发明名称 |
WERKWIJZE TER BEREIDING VAN KLEURLOZE KLEURVORMENDE VERBINDINGEN, ALSMEDE EEN OVERDRACHTSVEL EN EEN KOPIEERSYSTEEM, WAARIN GEBRUIK WORDT GEMAAKT VAN DEZE VERBINDINGEN. |
| 摘要 |
<p>A coated transfer sheet for pressure-sensitive copying systems which comprises an organic colorless color former containing two or more potential chromophoric systems each of which is capable of being activated substantially immediately when the compound is brought into contact with one or more activating substances.</p> |
| 申请公布号 |
NL163248(B) |
申请公布日期 |
1980.03.17 |
| 申请号 |
NL19720017809 |
申请日期 |
1972.12.29 |
| 申请人 |
WIGGINS TEAPE LIMITED, LONDEN. |
发明人 |
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| 分类号 |
B41M5/136;B41M5/145;C09B11/02;C09B11/24;C09B11/28;C09B67/22;(IPC1-7):09B11/24;41M5/12 |
主分类号 |
B41M5/136 |
| 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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