Sequestrant compositions

Details Sequestrant compositions Sequestrant compositions

1996-04-26

1998-05-26

Skane, Christine

Compositions

Water-softening or purifying or scale-inhibiting agents

510465, 510471, C02F 502

Patent

active

057559902

ABSTRACT:
Sequestrant compositions comprising combinations of an alkali metal or ammonium borate with an adduct formed by reaction of an .alpha., .beta. unsaturated polycarboxylic acid with a mono- or dicarboxylated sugar, in which the adduct has at least two hydroxy groups in a vicinal configuration. The sequestrants can be used to complex alkaline earth and transition metal ions and are especially useful for complexing calcium and magnesium in aqueous laundry solutions. They also are effective for soil dispersion and for inhibiting the deposition of soil on fabric.

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VanDuin, Martin, et al., "Studies on Borate Esters, Part 5. The System Glucarate-Borate-Calcium(II) as Studied by .sup.1 H, .sup.11 B, and .sup.13 C Nuclear Magnetic Resonance Spectroscopy", J. Chem. Soc. Perkin Trans. II, pp. 473-478 (1987).
Quill, K. and Robertson, B.W., "The Saccharate-Perborate System--A Combined Builder/Bleach for Heavy Duty Detergents", Proceedings of 3rd CESIO International Surfactants Congress, London, England, Jun. 1992.
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Greenhill-Hooper, M. J., "Dye/Soil Stabilization in Detergency-Borate Effects," INFORM, vol. 5, No. 4, April 1994), p. 546, Abstract F.
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Greenhill-Hooper, M. J., "Detergent Builder Properties of Borate," Comunicaciones presentadas a la XXV Jornadas Del Comite Espanol de la Detergencia, CED Meeting, Barcelona, Spain, May 1994.

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