METHOD FOR PREPARING A STABLE ISOTHIAZOLONE FORMULATION

    公开(公告)号:US20180153163A1

    公开(公告)日:2018-06-07

    申请号:US15888156

    申请日:2018-02-05

    CPC classification number: A01N25/22 A01N25/02 A01N43/80 A01N59/20

    Abstract: A method for producing a stable microbicidal composition. The method comprises steps of: (a) combining a glycol solvent of formula R(OCH2CHR1)nH, wherein R is C1-C6 alkyl and n has a number average value from 2 to 5 and R1 is hydrogen or methyl; dodecylbenzenesulfonic acid in an amount from 0.3 to 1.8 wt % based on the entire microbicidal composition; and a copper (II) salt selected from the group consisting of copper (II) hydroxide, copper (II) carbonate and mixtures thereof to form an initial mixture; wherein a mole ratio of copper:dodecylbenzenesulfonic acid is from 1:0.25 to 1:1.95; (b) maintaining the initial mixture at 40 to 80° C. until an amount of copper ion in solution is stable; and (c) adding 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one to produce a final mixture.

    COMPOSITIONS AND THEIR USES
    44.
    发明申请

    公开(公告)号:US20180126027A1

    公开(公告)日:2018-05-10

    申请号:US15613541

    申请日:2017-06-05

    Inventor: PETER CARTY

    Abstract: Aqueous compositions, methods of manufacturing such aqueous compositions, and methods of removing reducing and/or suppressing malodours using such aqueous compositions are described. These compositions utilize a combination of hydrogen peroxide, a source of copper II, nonionic surfactant and alcohol to provide a highly effective and stable malodour removing, reducing and/or suppressing composition. The compositions are particularly useful as aerosol compositions for effective malodour removal, reduction and/or suppression in particular malodours from open sites such as landfill and in closed domestic environments such as the home. Also described is a stabilized hydrogen peroxide solution, which is stable on the addition of copper (II) salts.

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