发明名称 |
USE OF HYDROLYSED COPOLYMERS OF N-VINYL CARBOXYLIC ACID AMIDES AND MONOETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS IN THE MANUFACTURE OF PAPER |
摘要 |
Use of copolymers which are obtainable by copolymerization of a) from 5 to 99 mol% of N-vinylcarboxamides, b) from 95 to 1 mol% of monoethylenically unsaturated carboxylic acids and/or the alkali metal, alkaline earth metal, ammonium or amine salts thereof and, if required, c) up to 30 mol% of other monoethylenically unsaturated com- pounds and, if required, d) up to 2 mol% of crosslinking agents and subsequent partial or complete elimination of the formyl groups from the N-vinylcarboxamides polymerized in the copolymer, with formation of amino or ammonium groups, are used as additives to paper stock for increasing the drainage rate and the retention in papermaking and the dry and wet strength of the paper. |
申请公布号 |
CA2145286(C) |
申请公布日期 |
2005.03.29 |
申请号 |
CA19932145286 |
申请日期 |
1993.11.25 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
NILZ, CLAUDIA;DENZINGER, WALTER;HARTMANN, HEINRICH;KROENER, MICHAEL;LINHART, FRIEDRICH;SCHUHMACHER, RUDOLF;MOENCH, DIETMAR;STANGE, ANDREAS |
分类号 |
C08F220/04;C08F8/12;C08F26/00;C08F226/02;D21H17/34;D21H17/37;D21H21/10;D21H21/18 |
主分类号 |
C08F220/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|