Process for preparation of water absorptive composite

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

D - Textiles, Paper

06

M

117/201, 28/0.53

D06M 14/04 (2006.01) A61L 15/26 (2006.01) B32B 27/12 (2006.01) D06M 14/14 (2006.01)

Patent

CA 1302181

ABSTRACT OF THE DISCLOSURE A process for preparing a water absorptive composite consisting of a highly water absorptive polymer and a prefabricated fibrous substrate, which comprises applying an aqueous solution containing (a) 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, (b) 2-vinylpyridine or(and) 4-vinylpyridine or(and) their salts, (c) a crosslinking agent and (d) an oxidative radical polymerization initiator to a prefabricated fibrous substrate, and then carrying out polymerization with addition of a reducing agent.

567731

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