DETERGENT COMPOSITION COMPRISING PHOSPHINOSUCCINIC ACID ADDUCTS AND METHODS OF USE
First Claim
Patent Images
1. A detergent composition comprising:
- between about 0.01 wt-% and about 40 wt-% of a phosphinosuccinic acid derivative comprising a phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts; and
between about 1 wt-% and about 90 wt-% of an alkalinity source comprising an alkali metal hydroxide, carbonate, metasilicate, and/or silicate;
wherein the composition contains a greater weight percentage of the alkalinity source than the phosphinosuccinic acid derivative; and
wherein a use solution of the detergent composition has a pH greater than 9; and
the composition does not contain a bleaching agent.
1 Assignment
0 Petitions
Accused Products
Abstract
Detergent compositions effective for controlling hard water scale accumulation are disclosed. Detergent compositions employing phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid (PSO) derivatives with alkali metal carbonate and/or alkali metal hydroxide reduce had water scale accumulation on treated surfaces at alkaline conditions between about pH of 9 and 12.5. Methods employing the detergent compositions and preventing hard water scale accumulation are also provided.
7 Citations
20 Claims
-
1. A detergent composition comprising:
-
between about 0.01 wt-% and about 40 wt-% of a phosphinosuccinic acid derivative comprising a phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts; and between about 1 wt-% and about 90 wt-% of an alkalinity source comprising an alkali metal hydroxide, carbonate, metasilicate, and/or silicate; wherein the composition contains a greater weight percentage of the alkalinity source than the phosphinosuccinic acid derivative; and wherein a use solution of the detergent composition has a pH greater than 9; and
the composition does not contain a bleaching agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification