Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1991-11-08
1993-08-03
Shine, W. J.
Compositions
Water-softening or purifying or scale-inhibiting agents
252132, 25217424, 252173, 252 94, 252DIG2, 252DIG14, C11D 337, C11D 902, C11D 3395, C11D 104
Patent
active
052326217
ABSTRACT:
Automatic dishwasher detergent composition is formulated as a linear viscoelastic, pseudoplastic, gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, and improved cleaning performance, Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener. Potassium to sodium weight ratios of at least 1/1 minimize amount of undissolved solid particles to further contribute to stability and pourability. Control of incorporated air bubbles functions to provide the product with a bulk density of about 1.28 to 1.40 g/cc which roughly corresponds to the density of the liquid phase. Stearic acid or other fatty acid or salt further improve physical stability.
REFERENCES:
patent: 3933672 (1976-01-01), Bartolotta et al.
patent: 4836948 (1989-06-01), Corring
patent: 4970016 (1990-11-01), Ahmed et al.
patent: 5073158 (1991-10-01), Dixit et al.
patent: 5141664 (1992-08-01), Corring et al.
Dixit Nagaraj S.
Farooq Amjad
Rounds Rhyta S.
Shevade Makarand
Colgate-Palmolive Company
Grill Murray
McGinty Douglas J.
Nanfeldt Richard E.
Shine W. J.
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