Back to results
US 10,647,598 B2Granted
Antimicrobial and algicidal agent for cooling water system
AssigneeKurita Water Industries Ltd.
InventorAkira Morita
Life of this patent
Estimating the term…
Abstract
An antimicrobial and algicidal agent for cooling water system contains an antimicrobial agent and an isothiazolone-based compound that effectively kill and remove the algae grown in the cooling water system.
Claims3
An antimicrobial and algicidal composition for a cooling water system subjected to an antimicrobial treatment with a chlorosulfamic acid and/or a chlorosulfamic acid salt, which is added when algae including diatoms, green algae, and blue-green algae are generated, comprising:
- an antimicrobial agent;
- and
- an isothiazolone-based compound,
- wherein the antimicrobial agent is one of the following a) to d)
- a) a chlorine-based oxidizing agent and sulfamic acid and/or sulfamic acid salt,
- b) N chlorosulfamic acid,
- c) N-chlorosulfamic acid salt, and
- d) N-chlorosulfamic acid and N-chlorosulfamic acid salt,
- the chlorine-based oxidizing agent is hypochlorous acid and/or hypochlorous acid salt, and
- the isothiazolone-based compound is 5-chloro-2-methyl-4-isothiazoline-3-one,
- and wherein a combination of the antimicrobial agent and isothiazolone-based compound exhibits synergy.
8 more elements
Dependencies are inferred from the claim text.