Kanebo, Limited

Other

Kanebo Ltd./kanto Chemical Co.

Keio Yamanaka

Zenji Hagiwara

Kenichi Tagawa

Saburo Nohara

Shigetaka Hoshino

Hiroo Ishino

Kazuo Okamoto

Yoshikatsu Mizukami

Zeolite particles retaining at least one metal ion having bacteriostatic properties on their ion-exchangeable sites in an amount up to 41% of the zeolite's ion exchange capacity are described.

Zeolite particles having bacteriocidal properties

Zeolite particles retaining silver ions having bacteriostatic properties on their ion-exchangeable sites in an amount up to 41% of the zeolite's exchange capacity are described.

Zeolite particles retaining silver ions having antibacterial properties

A polymer article containing zeolite particles on which metal ion having a bactericidal property, e.g. Ag, Cu or Zn, is provided by an ion exchange reaction shows an excellent bactericidal effect and durability of the effect, but no deterioration of physical properties of the polymer. The polymer article is produced by admixing zeolite particles previously provided with the metal ion with a polymer or by moulding a zeolite-containing polymer into an article and then treating the article with a metal ion solution.

Polymer article having an antibacterial property containing zeolite

Novel N,N,N',N'-tetraacetyl aromatic diamine compounds shown by the general formula (1) ##STR1## wherein R is ##STR2## X is Br or Cl, Y is alkylene group or akylidene group having 1-3 carbon atoms, carbonyl group, sulfonyl group or oxygen atom and m and n is 0 or an integer of 1-4, are produced by reacting 1 mole of aromatic diamine having the general formula

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Toyonaka, Japan

Keio Yamanaka