Stable liquid detergent compositions with enchanced clay soil de

Details Stable liquid detergent compositions with enchanced clay soil de Stable liquid detergent compositions with enchanced clay soil de

1988-10-06

1991-09-17

Lieberman, Paul

Compositions

Water-softening or purifying or scale-inhibiting agents

25217423, 25217424, 252531, 252532, 252538, 252539, 252546, 252547, 252875, 252 88, C11D 183, C11D 337

Patent

active

050493027

ABSTRACT:
A stable liquid detergent composition having improved clay soil detergency, clay soil anti-redeposition, oily soil anti-redeposition and soil release properties is disclosed. The detergent composition is comprised of an anionic surfactant, a nonionic surfactant, a hydrotrope, a graft copolymer of polyalkylene oxide and an ester monomer, and a nonionic cellulosic anti-redeposition agent. The graft copolymer is comprised of (a) a polyalkylene oxide based upon an alkylene oxide having from 2 to 4 carbon atoms having a molecular weight of 300 to 100,000 and, (b) at least one vinyl ester derived from a saturated monocarboxylic acid containing 1 to 6 carbon atoms, and/or methyl or ethyl ester of acrylic or meth-acrylic acid in a weight ratio of (a):(b) of from 1:0.2 to 1:10. The nonionic cellulosic anti-redeposition agent is preferably hydroxypropyl methylcellulose. There is a synergism between the nonionic anti-redeposition agent and the graft polyol which imparts improved clay soil detergency, clay anti-deposition and oily soil anti-redeposition properties to the detergent composition.

REFERENCES:
patent: 4532067 (1985-07-01), Padron et al.
patent: 4566993 (1986-01-01), Secemski et al.
patent: 4732693 (1988-03-01), Hight
patent: 4746456 (1988-05-01), Kud et al.
patent: 4846994 (1989-07-01), Kud et al.

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