Laundry compositions

Details Laundry compositions Laundry compositions

1987-07-07

1989-01-03

Lieberman, Paul

Compositions

Water-softening or purifying or scale-inhibiting agents

252547, 252153, 25217424, 252DIG15, C11D 162, C11D 165, C11D 337

Patent

active

047955848

ABSTRACT:
A laundry detergent or detergent additive composition comprising from about 0.1% to about 25% by weight of a soil-release polymer comprising ethyleneoxy terephthalate (EO-T) units and polyethyleneoxy terephthalate (PEO-T) units at a molar ratio (EO-T/PEO-T) of from about 0.5 to about 1.5, the PEO-T units containing polyethylene oxide (PEO) linking units having a molecular weight of from about 300 to about 3000, the molecular weight of the polymer being in the range from about 900 to about 9,000, and up to about 20% of a water-soluble quaternary ammonium surfactant.
The composition provides excellent soil-release performance without detriment to clay-soil detergency and anti-deposition performance.

REFERENCES:
patent: 3712873 (1973-01-01), Zenk
patent: 3959230 (1976-05-01), Hays
patent: 3962152 (1976-06-01), Nicol et al.
patent: 4116885 (1978-09-01), Derstadt et al.
patent: 4132680 (1979-01-01), Nicol
patent: 4411831 (1983-10-01), Robinson et al.
patent: 4548744 (1985-10-01), Connor
patent: 4571303 (1986-02-01), Crallella
patent: 4713194 (1987-12-01), Gosselink

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