| 发明名称 |
Dyed paper |
| 摘要 |
Compounds of the general formula A1=CH-B-CH=A2 where A1 and A2 are the radical of a quaternized methylene-active compound and B is a bridge member. The compounds according to the invention are very suitable for coloring ligneous and lignin-free paper stock.
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| 申请公布号 |
US4323362(A) |
申请公布日期 |
1982.04.06 |
| 申请号 |
US19810224943 |
申请日期 |
1981.01.14 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
DEGEN, HANS-JUERGEN;GRYCHTOL, KLAUS |
| 分类号 |
C09B23/00;C09B23/10;C09B23/14;C09B57/00;D21H21/28;(IPC1-7):D21H1/46 |
主分类号 |
C09B23/00 |
| 代理机构 |
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