Phosphate-free detergent having a reduced tendency towards incru

Details Phosphate-free detergent having a reduced tendency towards incru Phosphate-free detergent having a reduced tendency towards incru

1989-07-07

1990-04-24

Albrecht, Dennis

Compositions

Electrically conductive or emissive compositions

Metal compound containing

252109, 252110, 252131, 252135, 252140, 252155, 25217414, 25217416, 25217424, 25217425, 252179, 252180, 252539, 252540, 252DIG11, 252DIG17, C11D 308, C11D 312, C11D 330, C11D 336

Patent

active

049198459

ABSTRACT:
A detergent composition containing by weight (a) from 5 to 35% of an anionic or nonionic surfactant, (b) from 10 to 40% of finely crystalline zeolite, (c) from 4 to 20% of alkali metal silicate or carbonate and from 0.1 to 5% of (d) aminoalkanephosphonate or (d2) copolymer of (meth)acrylic acid and maleic acid and (e) from 5 to 80% of other detergent constituents is considerably improved in regard to its incrustation-inhibiting properties if it additionally contains (f) from 0.05 to 1% (based on the free acid) of 1-hydroxyethane-1,1-diphosphonic acid in the form of its alkali metal salt. The weight ratio of (d1) to (f) is from 3:1 to 1:6 and of (d2) to (f) is from 40:1 to 2:1.

REFERENCES:
patent: 3723333 (1973-03-01), Freyhold
patent: 3870522 (1975-03-01), Moisar et al.
patent: 3959167 (1976-05-01), Hwa
patent: 3959168 (1976-05-01), Germsheid
patent: 3966629 (1976-06-01), Dumbrell
patent: 4144226 (1979-03-01), Crutchfield et al.
patent: 4146495 (1979-03-01), Crutchfield et al.
patent: 4179391 (1979-12-01), Kaufmann
patent: 4265777 (1981-05-01), Boyer
patent: 4652403 (1987-03-01), May
patent: 4707290 (1987-11-01), Seiter
patent: 4737306 (1988-04-01), Wichelhaus

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