| abstract |
ABSTRACT BAYER AKTIENGESELLSCHAFT 5090 Leverkusen, Bayerwerk Konzernverwaltung RP Patente Konzern WX/wa/c199 Chlorine-free multifunctional resins for paper finishing The invention relates to a new process for the prepara-tion of cellulose-containing material provided with a dry-strength and wet-strength finish and/or sized, characterised in that the cellulose-containing material is treated with a water-dispersible polyisocyanate mixture (I), which contains tertiary amino and/or ammon-ium groups, optionally polyether units and optionally hydrophobic groups. |