Patent ID: 7964686
Filing Date: 2011-06-21
Classification: C08F

Abstract:
1. A cleaning formulation comprising: a scale inhibiting polymer having at least one carboxylic acid functionality selected from the group consisting of acrylic acid, maleic acid, itaconic acid and combinations thereof, at least one nonionic functionality selected from the group consisting of methyl (meth)acrylate, ethyl (meth)acrylate, t-butyl (meth)acrylate, methyl (meth)acrylamide, ethyl (meth)acrylamide, t-butyl (meth)acrylamide, styrene, α-methyl styrene and combinations thereof, and at least one sulfonate functionality selected from the group consisting of sodium (meth)allylsulfonate, vinyl sulfonate, sodium phenyl (meth)allyl ether sulfonate, 2-acrylamido-methyl propane sulfonic acid and combinations thereof, wherein the sulfonate functionality is equal to or less than about 2 mole % of the polymer; the cleaning formulation further comprising about 2 to about 80% by weight builder(s), based on total weight of the formulation, wherein the polymer is able to maintain a level of bleach in a high pH system.