Antibacterial zeolite causing little discoloration and method of the production thereof

摘要

PCT No. PCT/JP96/00693 Sec. 371 Date Nov. 13, 1997 Sec. 102(e) Date Nov. 13, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/28028 PCT Pub. Date Sep. 19, 1996The present invention provides antibacterial zeolite exhibiting a less discoloring action, obtained by treating the surface of zeolite supporting an antibacterial metal with 0.5 to 20% by weight, based on said zeolite, of a composition comprising (A) 100 parts by weight of a hydrolyzable silane and/or oligomer thereof which comprises 10 to 100% by weight of a hydrolyzable silane and/or oligomer thereof having an aryl group; (B) 1 to 1000 parts by weight of an organopolysiloxane having a basic nitrogen atom; and (C) 0.2 to 250 parts by weight of an acid which is soluble in water and which can form a salt with the aforesaid (B). The present antibacterial zeolite exhibits a remarkably less action of discoloring an organic polymer which contains the antibacterial zeolite when the polymer blend is placed under the influence of heat or the sunshine.