Spray dried base beads for detergent compositions containing zeo

Details Spray dried base beads for detergent compositions containing zeo Spray dried base beads for detergent compositions containing zeo

1989-05-22

1992-01-14

Lieberman, Paul

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252 86, 252135, 252174, 25217414, 25217421, 25217424, 25217425, 252179, 252540, C11D 716, C11D 306, C11D 314, C11D 1700

Patent

active

050808206

ABSTRACT:
Free flowing, zeolite-containing spray dried beads, useful for the manufacture of a particulate built syntyhetic nonionic organic detergent composition of reduced zeolite deposition characteristics due to the presence of bentonite and a low content of water soluble silicate or the absence of such silicate, include about 5 to 60% of water softening aluminosilicate (zeolite), about 2 to 40% of bentonite, about 5 to 60% of polyphosphate and up to about 5% of water soluble silicate. Preferably, for least zeolite deposition on the fabrics of laundry washed with the detergent composition, the spray dried beads contain no soluble silicate. Normally the moisture content of the beads will be in the range of about 3 to 12%, not being so high as to interfere with the flowability thereof (and of detergent compositions based on the beads) and not so low as to diminish the moisture content of the bentonite to a point at which it becomes less effective as an anti-deposition agent for the zeolite or zeolite-silicate aggregate and does not disperse readily in wash water. In addition to the polyphosphate, which serves as a very effective builder in these products, other water soluble builders may also be present. The invention also relates to nonionic detergent compositions based on such beads, which may be made by spraying such a nonionic detergent onto the beads so that it is absorbed by them.

REFERENCES:
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patent: 4203851 (1980-05-01), Ramachandran
patent: 4206651 (1981-04-01), Wixon
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patent: 4264464 (1981-04-01), Gangwisch et al.
patent: 4274975 (1981-06-01), Corkill et al.
patent: 4283299 (1981-08-01), Beeker et al.
patent: 4325829 (1982-04-01), Duggleby et al.
Surface Active Agents, Schwartze Perry, pp. 232, 233, 351 & 378, 1949.

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