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US 4,639,325 AGranted
Detergent builder
AssigneeA. E. Staley Manufacturing Company
InventorsVivian B. Valenty, William H. Hill, Prasad S. Ravi
Life of this patent
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AssigneeA. E. Staley Manufacturing Company
InventorsVivian B. Valenty, William H. Hill, Prasad S. Ravi
Estimating the term…
Products which are useful as detergent builders and which do not contain nitrogen or phosphorous atoms are described. Such detergent builders comprise one or more compounds of the Formula I-V below: [MOOCCH.sub.2 (MOOC)CHOCH.sub.2 ].sub.2 CHOCH(COOM)CH.sub.2 COOM (I) HOCH.sub.2 CH(OH)CH.sub.2 OCH(COOM)CH.sub.2 COOM; (II) HOCH.sub.2 CH[OCH(COOM)CH.sub.2 COOM]CH.sub.2 OCH(COOM)CH.sub.2 COOM; (III) MOOCCH.sub.2 (MOOC)CHOCH.sub.2 CH(OH)CH.sub.2 OCH(COOM)CH.sub.2 COOM; (IV) or HOCH.sub.2 CH[OCH(COOM)CH.sub.2 COOM]CH.sub.2 OH (V) wherein M is a salt-forming cation or hydrogen or mixtures thereof. Such compounds and/or mixtures thereof are produced by reacting glycerin with maleic acid (or a source thereof) in the presence of an alkaline earth metal hydroxide.
A compound of the formula:
A compound of the formula:
A detergent builder composition comprising a compound of the formula:
A process for preparing a detergent builder composition comprising a compound of the formula:
Dependencies are inferred from the claim text.