发明名称 |
Modified filler composition, pulp and paper using same |
摘要 |
A modified filler composition used in papermaking is provided. The modified filler composition contains microfibrillated cellulose, and filler having negative charge, and a cationic polymer. |
申请公布号 |
US8980058(B2) |
申请公布日期 |
2015.03.17 |
申请号 |
US201414160522 |
申请日期 |
2014.01.21 |
申请人 |
Goldeast Paper (Jiangsu) Co., Ltd |
发明人 |
Feng Yan;Dequanjiang |
分类号 |
D21H11/00;D21H17/45 |
主分类号 |
D21H11/00 |
代理机构 |
|
代理人 |
Chiang Cheng-Ju |
主权项 |
1. A modified filler composition, comprising:
filler having negative charge; microfibrillated cellulose (MFC) having a dry weight of 0.1% to 10% of that of the filler, the microfibrillated cellulose being made by TEMPO catalytic oxidation method; and cationic polymer having a dry weight of 0.1% to 15% of that of the filler; wherein the microfibrillated cellulose has a carboxyl content of 0.06 to 1.7 mmol/g;the microfibrillated cellulose comprises water-soluble cellulose having a mass percentage on a dry solids basis of 0.1% to 50% and water-insoluble cellulose having a mass percentage on a dry solids basis of 10% to 99.9%. |
地址 |
Zhenjiang, Jiangsu Province CN |