C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/3
C11D 3/26 (2006.01) C11D 3/00 (2006.01) C11D 3/33 (2006.01) C11D 11/00 (2006.01)
Patent
CA 1037817
ABSTRACT A particulate heavy duty synthetic organic detergent which has improved aging properties includes a synthetic organic detergent of the anionic or nonionic type or a mixture thereof and a builder which is a hydroxy- alkyl iminodicarboxylate hydrate. In preferred compositions the iminodicar- boxylate hydrate is disodium 2-hydroxyethyl iminodiacetate hexahydrate, the detergent is a mixture of linear higher alkyl benzene sulfonate and higher fatty alcohol polyethoxylate and the detergent composition includes sodium silicate, sodium carbonate, sodium carboxymethyl cellulose, sodium sulfate and moisture. The described products are of better storage and aging propert- ies than products of similar formulas in which the iminodicarboxylate is present but not as a hydrate. Also within the invention are methods for the manufacture of the described compositions in which all the formula except the iminodicarboxylate hydrate is spray dried from an aqueous crutcher mix to globular particles which are then mixed with iminodicarboxylate hydrate part- icles of similar sizes.
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