Paper finishing process using polyisocyanates with anionic...

Details Paper finishing process using polyisocyanates with anionic... Paper finishing process using polyisocyanates with anionic...

D - Textiles, Paper

21

H

D21H 17/08 (2006.01) C08G 18/08 (2006.01) D21H 21/18 (2006.01) D21H 23/76 (2006.01)

Patent

CA 2222731

The use of water-dispersible polyisocyanates with anionic and/or potentially anionic groups and cationic and/or potentially cationic compounds in paper finishing leads not only to higher retention but also to improved dry and wet strength and sizing.

L'utilisation, dans la finition du papier, de polyisocyanates dispersibles dans l'eau, à groupes anioniques et/ou potentiellement anioniques, ainsi que de composés cationiques et/ou potentiellement cationiques permet d'obtenir non seulement une rétention plus élevée, mais également une amélioration de l'encollage et de la résistance à l'état sec et à l'état humide.

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