Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1980-11-21
1983-11-08
Albrecht, Dennis L.
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
23313R, 23313AS, 252174, 25217413, 25217414, 25217417, 25217418, 25217421, 25217423, 25217425, 252179, 264117, B01J 3914, C02F 142, C11D 312, C11D 1706
Patent
active
044141300
ABSTRACT:
Agglomerates of water insoluble builder molecular sieve zeolites are made by tumbling or otherwise suitably mixing very finely divided ion exchanging zeolite powder and a water soluble binder, such as starch, preferably in the presence of a small amount of moisture sufficient to promote desirable agglomeration of the finely divided ion exchanging zeolite particles and the binder into essentially spherical particles, preferably in the 6 to 140 mesh range. The agglomerates are readily disintegrated when agitated in water and rapidly release the separated very finely divided insoluble builder particles to allow them to remove hardness ions from the water. The dispersible and disintegrable agglomerates are especially useful in heavy duty detergent compositions wherein the zeolite of the agglomerate provides all or a substantial proportion of the builder content. Because of their ready disintegrability the agglomerates quickly release very finely divided ion exchanging zeolite particles, which remove calcium hardness ions from wash waters, improving detergency of the composition and at the same time, because of the very small particle size thereof, passing through laundered fabrics without depositing thereon to objectionably discolor or whiten said laundry (especially colored laundry). Because their particle size is about that of the balance of the detergent composition the builder agglomerates are also non-segregating and non-dusting. Preferred zeolites are amorphous but crystalline zeolites, of the molecular sieve type, are useful too. The amorphous zeolites are additionally useful in sorbing sticky detergent materials and allow the manufacture of free flowing and non-dusting products without the need for spray drying or other drying operations.
REFERENCES:
patent: 3227790 (1966-01-01), Bretschneider
patent: 3519570 (1970-07-01), McCarty
patent: 3594325 (1971-07-01), Feierstein
patent: 3664961 (1972-05-01), Norris
patent: 3714051 (1973-01-01), Milesi
patent: 3789002 (1974-01-01), Weber
patent: 3985669 (1976-10-01), Krummel
patent: 4096081 (1978-06-01), Phenicie
patent: 4274975 (1981-06-01), Corkill
Albrecht Dennis L.
Colgate - Palmolive Company
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