Abstract: Method for crosslinking a carboxylated polymer using a triazine crosslinking activator, method for crosslinking a mixture of first and second carboxylated polymers a triazine crosslinking activator, a crosslinked carboxylated polymer having ionic crosslinks, and a composition comprising first and second carboxylated polymers treated with an amount of an amine compound to form plurality of amide bonds

Abstract: Sulfoalkylated cellulose polymer network having superabsorbent properties.

Abstract: A method for crosslinking a mixture of first and second carboxylated polymers using a triazine crosslinking activator.

Abstract: A method for crosslinking a carboxylated polymer using a triazine crosslinking activator.

Abstract: Methods for making the carboxyalkyl cellulose.

Abstract: A mixed polymer network made from reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent.

Abstract: A crosslinked carboxylated polymer having ionic crosslinks.

Abstract: Carboxyalkyl cellulose polymer network having superabsorbent properties.

Abstract: Method for making a sulfoalkylated cellulose polymer network having superabsorbent properties.

Abstract: A method for making a mixed polymer network by reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent.

Abstract: An apparatus for carboxylating wood pulp which utilizes the wood pulp bleach plant and the method of carboxylating the pulp which takes place in the bleach plant.

Abstract: An apparatus for carboxylating wood pulp which utilizes the wood pulp bleach plant and the method of carboxylating the pulp which takes place in the bleach plant.

Abstract: Methods for making carboxylated cellulosic fibers using the N-halo hindered cyclic amine compounds. N-halo hindered cyclic amine compounds react with a secondary oxidizing agent to provide a primary oxidizing agent that reacts with cellulosic fibers to provide carboxylated cellulosic fibers.

Abstract: A method of making a carboxylated carbohydrate is disclosed, cellulose being a preferred carbohydrate material. Carboxylated cellulose fibers can be produced whose fiber strength and degree of polymerization is not significantly sacrificed. The method involves the use of a catalytic amount of a hindered cyclic oxammonium compounds as a primary oxidant and chlorine dioxide as a secondary oxidant in an aqueous environment. The oxammonium compounds may be formed in situ from their corresponding amine, hydroxylamine, or nitroxyl compounds. The oxidized cellulose may be stabilized against D.P. loss and color reversion by further treatment with an oxidant such as sodium chlorite or a chlorine dioxide/hydrogen peroxide mixture. Alternatively it may be treated with a reducing agent such as sodium borohydride. In the case of cellulose the method results in a high percentage of carboxyl groups located at the fiber surface.