发明名称 |
METHOD FOR PRODUCING PAPER AND CARDBOARD |
摘要 |
The invention relates to a method for producing paper or cardboard, which comprises adding (I) an aqueous composition having a pH ≤6 and (II) at least one water-soluble polymeric anionic compound to a paper stock having a pH in the range from 6 to 8, and then dewatering the paper stock, forming sheets and drying, where the aqueous composition comprises (a) polymers having primary amino groups and/or amidine groups, with a total content of these groups of ≥1.5 meq/g polymer, and (b) 0.01 to 50 mol% of 1,4-cyclohexanedione (b), based on the total amount of primary amino groups and/or amidine groups in the polymers, and also to the paper or cardboard produced accordingly. |
申请公布号 |
WO2016096477(A1) |
申请公布日期 |
2016.06.23 |
申请号 |
WO2015EP78645 |
申请日期 |
2015.12.04 |
申请人 |
BASF SE |
发明人 |
HAEHNLE, HANS-JOACHIM;HAMERS, CHRISTOPH;ESSER, ANTON;MEIXNER, HUBERT;BUCHAN, MATTHEW;SCHALL, NORBERT;SPANGE, STEFAN;TROMMLER, KATJA;WÜRFEL, HENDRIK;SEIFERT, SUSAN;WALTHER, TINA |
分类号 |
D21H17/34;C08L39/02;D21H17/37;D21H17/41;D21H17/42;D21H17/44;D21H21/10;D21H23/04 |
主分类号 |
D21H17/34 |
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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