Chlorine-free multifunctional resins for paper finishing

The invention relates to a novel process for the preparation of cellulose-containing material which has been treated and/or sized in order to improve the dry strength and wet strength, characterised in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture...

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Bibliographische Detailangaben
Hauptverfasser: REIFF, HELMUT. DR., 51375 LEVERKUSEN, DE, PUCHNER, FRITZ. DR., 50996 KOELN, DE, KOENIG, JOACHIM. DR., 51519 ODENTHAL, DE, PROBST, JOACHIM. DR., 51375 LEVERKUSEN, DE, HALPAAP, REINHARD. DR., 51519 ODENTHAL, DE, TRAEUBEL, HARRO. DR., 51373 LEVERKUSEN, DE, REINERS, JUERGEN. DR., 51373 LEVERKUSEN, DE, LAAS, HANS-JOSEF. DR., 50733 KOELN, DE, BOEMER, BRUNO. DR., 51373 LEVERKUSEN, DE
Format: Patent
Sprache:eng ; ger
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Beschreibung
Zusammenfassung:The invention relates to a novel process for the preparation of cellulose-containing material which has been treated and/or sized in order to improve the dry strength and wet strength, characterised in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I) containing tertiary amino and/or ammonium groups, optionally polyether units and optionally hydrophobic groups.