Detergent composition comprising phosphinosuccinic acid adducts and methods of use
First Claim
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1. A detergent composition comprising:
- between about 1 wt-% and about 20 wt-% of a phosphinosuccinic acid derivative comprising a phosphinosuccinic acid and mono-, bis and oligomeric phosphinosuccinic acid adducts;
between 65 wt-% and about 90 wt-% of an alkalinity source selected from the group consisting of an alkali metal hydroxide, carbonate, metasilicate, and silicate; and
between about 10 wt-% and about 20 wt-% of water;
wherein a use solution of the detergent composition has a pH between about 9 and 12.5.
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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.
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Citations
19 Claims
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1. A detergent composition comprising:
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between about 1 wt-% and about 20 wt-% of a phosphinosuccinic acid derivative comprising a phosphinosuccinic acid and mono-, bis and oligomeric phosphinosuccinic acid adducts; between 65 wt-% and about 90 wt-% of an alkalinity source selected from the group consisting of an alkali metal hydroxide, carbonate, metasilicate, and silicate; and between about 10 wt-% and about 20 wt-% of water; wherein a use solution of the detergent composition has a pH between about 9 and 12.5. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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9. The composition of claim 1, where the use solution comprises from about 100-1500 ppm of an alkalinity source, from about 5-500 ppm phosphinosuccinic acid derivative and has a pH between about 9 and 12.5.
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10. A detergent composition comprising:
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between about 1 wt-% and about 20 wt-% of a phosphinosuccinic acid derivative comprising a phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts; between 65 wt-% and about 90 wt-% of an alkalinity source selected from the group consisting of an alkali metal hydroxide, carbonate, metasilicate, and silicate; between about 0.1 wt-% and about 25 wt-% of a surfactant, between about 10 wt-% and about 20 wt-% of water; wherein a use solution of the detergent composition has a pH between about 9 and 12.5. - View Dependent Claims (11, 12, 13, 14, 15)
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13. The composition of claim 10, wherein the detergent composition use solution comprises from about 100-1500 ppm of an alkalinity source, from about 1-500 ppm phosphinosuccinic acid derivative, from about 1-50 ppm of a nonionic surfactant and has a pH of about 9 and 12.5.
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14. The composition of claim 10, wherein the composition comprises from about 5 wt-% to about 20 wt-% of the phosphinosuccinic acid derivative and from about 1 wt-% to about 10 wt-% of the surfactant, wherein the surfactant comprises a nonionic surfactant.
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15. The composition of claim 10, wherein the phosphinosuccinic acid derivative comprises at least 10 mol % of an adduct comprising a ratio of succinic acid to phosphorus from about 1:
- 1 to 20;
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- 1 to 20;
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16. A method of cleaning while preventing hard water scale accumulation on a treated surface comprising:
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applying a detergent composition to a substrate surface, wherein the detergent composition comprises between about 1 wt-% and about 20 wt-% of a phosphinosuccinic acid derivative comprising a phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts, between 65 wt-% and about 90 wt-% of an alkalinity source selected from the group consisting of an alkali metal hydroxide, carbonate, metasilicate, silicate, and between about 10 wt-% and about 20 wt-% of water, and wherein the detergent composition is effective for preventing the formation, precipitation and/or deposition of hard water scale on the surface; and generating a use solution of the detergent composition, wherein the detergent use solution has a pH between about 9 and 12.5. - View Dependent Claims (17, 18, 19)
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Specification