Cationic polysaccharides esterified by a discarloxylic acid anhy

Details Cationic polysaccharides esterified by a discarloxylic acid anhy Cationic polysaccharides esterified by a discarloxylic acid anhy

1996-12-20

1998-03-24

Nutter, Nathan M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 63, 536107, 536110, 536115, 536119, C08B 300, C08B 3102, C08B 3116

Patent

active

057314306

ABSTRACT:
The invention relates to a new composition for sizing paper and board, containing a cationic polysaccharide esterified by a dicarboxylic acid anhydride, characterized in that the said dicarboxylic acid anhydride is substituted with a carbon chain, saturated or unsaturated, of branched structure.
The anhydride may for example consist of tetrapropenylsuccinic anhydride or of any one of its isomers.
The composition for sizing according to the invention may, if necessary, contain an oxidizing agent such as a persulphate. It may advantageously be applied to the surface treatment of printing and/or writing papers, in particular of papers for envelopes and of papers for impact-free printing such as inkjet printing.

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