发明名称 |
Method of improving retention and drainage in a papermaking process using a diallyl-N,N-disubstituted ammonium halide-acrylamide copolymer and a structurally modified cationic polymer |
摘要 |
A method of increasing retention and drainage in a papermaking furnish comprising adding to the furnish an effective amount of a diallyl-N,N-disubstituted ammonium halide/acrylamide copolymer and an effective amount of a cationic structurally-modified water-soluble polymer, the cationic structurally-modified water-soluble polymer prepared by initiating polymerization of an aqueous solution of from about 95 to about 5 mole percent of an acrylamide monomer and from about 5 to about 95 mole percent of a cationic monomer under free radical polymerization conditions to form a polymer solution and adding at least one structural modifier to the polymer solution after at least 30% polymerization of the monomers has occurred.
|
申请公布号 |
US6592718(B1) |
申请公布日期 |
2003.07.15 |
申请号 |
US20010947675 |
申请日期 |
2001.09.06 |
申请人 |
ONDEO NALCO COMPANY |
发明人 |
WONG SHING JANE B.;GRAY ROSS T.;ZELENEV ANDREI S.;CHEN JIWEI |
分类号 |
C08L33/24;D21H17/37;D21H21/10;D21H21/52;D21H23/76;(IPC1-7):D21H11/00;D21H13/00;D21H15/00;D21H17/00 |
主分类号 |
C08L33/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|