C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
134/40, 362/65.5
C02F 1/50 (2006.01) A01N 25/32 (2006.01) A01N 25/34 (2006.01) A01N 43/80 (2006.01)
Patent
CA 1223171
- i - Patent Application of DAVID R. AMICK for PROTRACTED RELEASE MICROBIOCIDAL ARTICLE FOR AQUEOUS SYSTEMS D.N. 82-50 By: LEJ/ets ABSTRACT OF THE DISCLOSURE There is disclosed as an article a water-permeable membrane containing sealed therein a solid particulate microbiocidal composition which is useful in aqueous systems, wherein the composition is produced from a microbiocidal compound having relatively low water solubility or a combination thereof with other microbiocidal compounds having relatively high water solubility to give a combination generally characterized by low water solubility in admixture with an inert, finely-divided water-insoluble solid carrier material. Especially useful are microbiocidal 3-isothiazolones and 2-substituted-1,2-benzisothiazolones having relatively low water solubility, and metal salt stabilized derivatives thereof, admixed with silicaceous diatomaceous earth. These articles afford protracted controlled release of active ingredient and also afford a safer form of the active ingredient heretofore known to be relatively irritating to the skin of man when at high concentration in aqueous solution.
436458
Gowling Lafleur Henderson Llp
Rohm And Haas Company
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