Use of a starch base copolymer in conjunction with a maleic polymer and a hydroxypolycarboxylic acid to control hardness under alkaline conditions

摘要

The present invention includes methods and compositions control hard water in an alkaline environment. According to the invention, a unique combination of polymers has been developed which helps to completely control and eliminate hard water. The composition includes a maleic polymer, a hydroxypolycarboxylic acid, and a starch based polymer in a unique synergistic combination that can be used alone, or in combination with standard alkaline detergents in any cleaning regime (laundry, warewash, etc.) where hard water conditions exist.

主权项

1. A hardness control composition for use in alkaline cleaning conditions comprising:
a starch based hybrid polymer, a maleic polymer and a hydroxycarboxylic acid salt; wherein the maleic polymer comprises at least one of the following: polymaleic acid, hydrolyzed polymaleic anhydride or cis-2-buenedioic acid homopolymer; and further wherein said maleic polymer is present in an amount of from about 20 wt. % to about 40 wt. %.