Cross-linking agents of cellulosic fabrics

Details Cross-linking agents of cellulosic fabrics Cross-linking agents of cellulosic fabrics

C - Chemistry, Metallurgy

08

B

C08B 15/10 (2006.01) D04H 1/58 (2006.01) D06M 13/207 (2006.01) D06M 15/263 (2006.01) D21H 17/43 (2006.01) D21H 21/18 (2006.01) D04H 1/64 (2006.01) D21H 17/15 (2006.01) D21H 17/37 (2006.01) D21H 21/20 (2006.01) D21H 25/06 (2006.01)

Patent

CA 2277943

Cellulosic materials such as cotton fabrics and paper are cross-linked with a composition comprising (A) polymers of ethylenically unsaturated polycarboxylic acid monomers or salts thereof, the monomers having one or more dicarboxylic groups wherein the carboxyl groups are on adjacent carbon atoms; (B) saturated .alpha.-hydroxypolycarboxylic acids or salts thereof; and (C) one or more curing catalysts, and heated to produce esterification and cross- linking of the cellulose by reaction of the cellulosic hydroxyl groups with carboxyl groups in the reaction product of (A) and (B).

Des matières cellulosiques telles que des tissus en coton et du papier sont (1) réticulées avec une composition constituée (A) de polymères de monomères d'acide polycarboxylique non saturé par l'éthylène ou de sels de ces derniers, les monomères comprenant un ou plusieurs groupes bicarboxyliques dans lesquels les groupes carboxyle se situent sur des atomes de carbone adjacents; (B) d'acides .alpha.-hydroxypolycarboxyliques saturés ou de sels de ces derniers et (C) d'un ou de plusieurs catalyseurs de polymérisation; puis (2) chauffées pour produire l'estérification et la réticulation de la cellulose par réaction des groupes hydroxyle cellulosiques avec les groupes carboxyles dans le produit de réaction de (A) et (B).

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