Patent ID: 8480808
Filing Date: 2013-07-09
Classification: C11D

Abstract:
1. A warewash detergent composition comprising: (a) an alkaline source in an amount effective to provide a use composition having a pH of at least about 8 and obtained by diluting the detergent composition with water; said alkaline source comprising a silicate present in an amount of from about 35 wt. % to about 55 wt. %; (b) a corrosion inhibitor component in an amount of from about 0.1 wt. % to about 30 wt. % said amount sufficient for reducing corrosion of aluminum or aluminum containing alloys, the corrosion inhibitor component comprising a polyacrylic and a polymaleic homopolymer or their salts in a wt. % ratio of about 7:3 polyacrylic homopolymer to polymaleic homopolymer; (c) a threshold agent in an amount of about 3 wt. % to about 25 wt. %; (d) a surfactant in an amount of from about 1 wt. % to about 5 wt; and (e) water in an amount from about 10 wt % to about 60 wt. %; and wherein said composition does not include sodium carbonate.