| 发明名称 |
METHOD FOR PRODUCING HIGH DRY-STRENGTH PAPER, PULPBOARD AND CARDBOARD |
| 摘要 |
The invention relates to a method for producing high dry-strength paper, pulpboard and cardboard by adding cationic, anionic and/or amphoteric starch as a dry-strength agent to the paper material, dehydrating the paper material to form sheets in the presence of cationic polymers as starch retention agents, and using cationic polymer retention agents to increase retention of dry-strength agents made from cationic, anionic and/or amphoteric starch during the production of paper, pulpboard and cardboard.
|
| 申请公布号 |
CA2284931(A1) |
申请公布日期 |
1998.10.15 |
| 申请号 |
CA19982284931 |
申请日期 |
1998.03.26 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
LORENCAK, PRIMOZ;DYLLICK-BRENZINGER, RAINER;KRUEGER, ELLEN;STANGE, ANDREAS;BAUMANN, PETER;RUEBENACKER, MARTIN;MEIXNER, HUBERT |
| 分类号 |
D21H17/20;D21H17/29;D21H17/45;D21H17/55;D21H17/56;D21H21/10;D21H21/18;D21H23/76;(IPC1-7):D21H21/10 |
主分类号 |
D21H17/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
