Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1986-07-02
1988-11-22
Barr, Josephine
Compositions
Water-softening or purifying or scale-inhibiting agents
25217421, 252135, 252156, 252DIG2, 252DIG14, C11D 1700
Patent
active
047864338
ABSTRACT:
A method of manufacturing a stable, phosphorous-free alkaline detergent emulsion comprising the steps of (a) blending about 0.1 to 10 wt-% hardness sequestering organic polyelectrolyte having pendent carboxyl groups, about 5 to 40 wt-% nonionic surfactant, and about 1 to 10 wt-% water to form a pre-mix; (b) blending about 5 to 60 wt-% of a 40 to 60 wt-% first caustic solution and the pre-mix to form a first intermediate mixture; (c) blending about 1 to 10 wt-% of an acrylic resin and the first intermediate mixture to form a second intermediate mixture; and (d) blending about 10 to 50 wt-% of a 40 to 60 wt-% second caustic solution to form a detergent emulsion having a viscosity of about 250 to 1000 centipoise at 70.degree. F.
The method may optionally include the step of blending the detergent emulsion in a high shear mixer.
REFERENCES:
patent: 3075922 (1963-01-01), Wixon
patent: 3308067 (1967-03-01), Diehl
patent: 4286956 (1981-09-01), Bechstedt
patent: 4288225 (1981-09-01), Roland et al.
patent: 4388205 (1983-06-01), Stettler et al.
patent: 4521332 (1985-06-01), Milora
patent: 4569781 (1986-02-01), Fernholz
Hall Cheryl A.
Marquardt Linda L.
Barr Josephine
Ecolab Inc.
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