发明名称 |
VERFAHREN ZUR ALTPAPIERAUFBEREITUNG. |
摘要 |
<p>PCT No. PCT/EP90/01122 Sec. 371 Date Jan. 13, 1992 Sec. 102(e) Date Jan. 13, 1992 PCT Filed Jul. 10, 1990 PCT Pub. No. WO91/01405 PCT Pub. Date Feb. 7, 1991.According to the invention, wastepaper is refined in the presence of alkoxylation products obtainable by reaction of alkylene oxides with C10-22 carboxylic acid derivatives and/or C10-22 carboxylic acids containing carboxylic acid residues with at least one OH group in the 9, 10, 13 and/or 14 position and the detached printing ink particles are subsequently removed from the paper stock suspensions by flotation or washing.</p> |
申请公布号 |
DE59008548(D1) |
申请公布日期 |
1995.03.30 |
申请号 |
DE1990508548 |
申请日期 |
1990.07.10 |
申请人 |
HENKEL KGAA, 40589 DUESSELDORF, DE |
发明人 |
DAUTE, PETER, W-4300 ESSEN 1, DE;STOLL, GERHARD, W-4052 KORSCHENBROICH 1, DE;HORNFECK, KLAUS, W-4020 METTMANN, DE |
分类号 |
C07C67/26;D21C;D21C5/02;(IPC1-7):D21C5/02 |
主分类号 |
C07C67/26 |
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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