Process for preparation of water absorptive composite material

Details Process for preparation of water absorptive composite material Process for preparation of water absorptive composite material

D - Textiles, Paper

06

M

117/202, 28/0.53

D06M 14/04 (2006.01) D06M 14/14 (2006.01)

Patent

CA 1302806

ABSTRACT OF THE DISCLOSURE There is provided a process for preparing a water absorptive composite material, which comprises the combination of the following steps of: (A) applying an aqueous solution of a polymerizable monomer comprising as a main component acrylic acid, of which 20% or more of the carboxyl groups have been neutralized to its alkali metal salt or ammonium salt, to a prefabricated fibrous substrate; (B) polymerizing the polymerizable monomers applied to said fibrous substrate to form a composite of a polymer derived from said polymerizable monomer and said fibrous substrate; and (C) adding to said composite a crosslinking agent having two or more functional groups reactive with the carboxyl groups and/or carboxylate groups contained in the polymer to react therewith.

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