Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1987-10-28
1990-10-30
Clingman, A. Lionel
Compositions
Water-softening or purifying or scale-inhibiting agents
252131, 252135, 252DIG1, 252140, 25217425, 106465, C11D 337, C11D 1002
Patent
active
049666061
ABSTRACT:
Particulate detergent compositions containing a detergent active system, sodium carbonate and a calcite seed crystal exhibit improved dispensibility from automatic washing machines when the mean particle size is at least 500 microns, such as above 700 microns and the level of particles with a size below 50 microns is less than 2% by weight of the overall composition. The Rosin-Rammler distribution n value should be at least 4 when the means particle size is 700 microns but may be as low as 2 when the mean is 1200 microns. When the sodium carbonate and calcite are in separate particles, the sizes thereof should be similar.
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Garner-Gray Peter F.
Knight Peter C.
Niven Ian E.
Clingman A. Lionel
Koatz Ronald A.
Lever Brothers Company Division of Conopco, Inc.
McNally John F.
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