DRY STRENGTH SYSTEM FOR THE PRODUCTION OF PAPER AND BOARD
摘要
<p>The instant invention relates to certain cross-linked polyamides and their use in the paper and board industry for improving dry strength. The polyamide from the reaction of a di- or tri-primary amine with a di- or tri- or tetra carboxylic acid is further reacted with a di- or tri-functional cross-linking compound to give a cationic or anionic product with no reactive groups.</p>
申请公布号
WO2007071566(A1)
申请公布日期
2007.06.28
申请号
WO2006EP69412
申请日期
2006.12.07
申请人
CLARIANT INTERNATIONAL LTD;COWMAN, JOHN STUART;FOX, ADRIAN;DEKOCK, PAUL;MOTTRAM, ANDREW
发明人
COWMAN, JOHN STUART;FOX, ADRIAN;DEKOCK, PAUL;MOTTRAM, ANDREW