Drug – bio-affecting and body treating compositions – Solid synthetic organic polymer as designated organic active... – Polymer from ethylenic monomers only
Patent
1982-09-23
1985-03-19
Rose, Shep K.
Drug, bio-affecting and body treating compositions
Solid synthetic organic polymer as designated organic active...
Polymer from ethylenic monomers only
424 15, 424 35, 206 05, 210764, 43131, A01N 2534
Patent
active
045058890
ABSTRACT:
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.
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Rohm and Haas Company
Rose Shep K.
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