Patent ID: 8889613

Claim:
A detergent comprising: an alkalinity source; a homopolymer of acrylic acid or a salt thereof; a homopolymer of methacrylic acid or a salt thereof; and a homopolymer of maleic acid or a salt thereof, wherein a weight ratio of the homopolymer of methacrylic acid or a salt thereof to the homopolymer of acrylic acid or a salt thereof is between approximately 1:3 and approximately 3:1, a weight ratio of the homopolymer of acrylic acid or a salt thereof to the homopolymer of maleic acid or a salt thereof is between approximately 3:1 and approximately 1:6, and a weight ratio of the homopolymer of methacrylic acid or a salt thereof to the homopolymer of maleic acid or a salt thereof is between approximately 2:1 and approximately 1:4: and wherein the combined amount of homopolymer in the detergent is between about 2 and 9 weight percent and further wherein the detergent composition contains less than approximately 0.5% phosphorous by weight.