| 发明名称 |
METHOD FOR PRODUCING PAPER, PAPERBOARD AND CARDBOARD HAVING HIGH DRY STRENGTH |
| 摘要 |
The invention relates to a method for producing paper, paperboard and cardboard having high dry strength by adding a vinylamine entity-containing polymer and lignosulfonic acid and/or a lignosulfonate to a paper pulp, dewatering the pulp and drying the paper products. |
| 申请公布号 |
CA2644348(C) |
申请公布日期 |
2014.06.10 |
| 申请号 |
CA20072644348 |
申请日期 |
2007.03.09 |
| 申请人 |
BASF SE |
发明人 |
RUEBENACKER, MARTIN;SCHALL, NORBERT;KRUEGER, ELLEN |
| 分类号 |
D21H21/18;D21H17/23;D21H17/42;D21H17/56;D21H23/76 |
主分类号 |
D21H21/18 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
