发明名称 |
METHOD FOR INCREASING THE ADVANTAGES OF STARCH IN PULPED CELLULOSIC MATERIAL IN THE PRODUCTION OF PAPER AND PAPERBOARD |
摘要 |
The invention relates to a method for increasing the benefit from starch in pulped, preferably repulped cellulosic material at paper or paperboard manufacturing comprising the steps of (a) pulping a cellulosic material containing a starch; (b) treating the cellulosic material containing the starch with one or more biocides, preferably in the thick stock area; and (h) adding an ionic polymer and preferably, an auxiliary ionic polymer to the cellulosic material; wherein the ionic polymer and the optionally added auxiliary ionic polymer preferably have a different average molecular weight and preferably a different ionicity, wherein the ionicity is the molar content of ionic monomer units relative to the total amount of monomer units. |
申请公布号 |
EP2609250(B1) |
申请公布日期 |
2016.08.17 |
申请号 |
EP20110758382 |
申请日期 |
2011.08.25 |
申请人 |
SOLENIS TECHNOLOGIES CAYMAN, L.P. |
发明人 |
KRAPSCH, LUDWIG;MC GREGOR, CHRISTOPHER JOHN;MALLARD DE LA VARENDE, JEAN VICTOR |
分类号 |
D21H21/36;D21H17/28;D21H17/37 |
主分类号 |
D21H21/36 |
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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