发明名称 |
Papermaking process utilizing hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide as retention and drainage aids |
摘要 |
A method for improving retention and drainage performance in a papermaking process is disclosed. The method comprises forming an aqueous cellulosic papermaking slurry, adding an effective amount of a hydrophilic dispersion polymer to the slurry, draining the slurry to form a sheet and drying the sheet. The hydrophilic dispersion polymer is preferably a copolymer of diallyldimethyl ammonium chloride and acrylamide.
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申请公布号 |
US6071379(A) |
申请公布日期 |
2000.06.06 |
申请号 |
US19980010156 |
申请日期 |
1998.01.21 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
WONG SHING, JANE B.;HURLOCK, JOHN R.;MALTESH, CHIDAMBARAM;NAGARAJAN, RAMASUBRAMANYAM |
分类号 |
D21H17/29;D21H17/37;D21H17/45;D21H17/66;D21H21/10;D21H23/04;(IPC1-7):D21H21/10 |
主分类号 |
D21H17/29 |
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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