C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 30/06 (2006.01) C08G 73/02 (2006.01) D21H 17/54 (2006.01) D21H 21/20 (2006.01) D21H 23/32 (2006.01)
Patent
CA 2575431
Polymeric compounds of formula I comprising boronic acid are provided. These polymeric compounds are prepared either by grafting boronic acid containing compounds (e.g. 4-carboxyphenylboronic acid) to hydrolysed poly(N- vinylformamide) or hydrolysing copolymer(s) obtained by copolymerizing vinyl group containing boronic acid monomers (e.g. -vinylphenyl boronic acid) and N- vinylformamide. These polymeric compounds are used in increasing the wet strength of paper in paper-making processes.Formula (I).
L'invention concerne des composés polymériques représentés par la formule I contenant de l'acide boronique. Lesdits composés polymériques sont préparés par greffage de composés contenant de l'acide boronique (par exemple 4-carboxyphényle acide boronique) sur un poly(N-vinylformamide) hydrolysé, ou un ou des copolymères d'hydrolysation obtenus par copolymérisation du groupe vinyle contenant des monomères d'acide boronique (par exemple vinylphényle acide boronique) et N-vinylformamide. Lesdits composés polymériques sont utilisés dans l'augmentation de la résistance à l'humidité du papier dans les procédés de fabrication de papier.
Lu Chen
Pelton Robert H.
Basf Ag
Ridout & Maybee Llp
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