Shear-thickening solutions with hydroxypropyl cellulose

Details Shear-thickening solutions with hydroxypropyl cellulose Shear-thickening solutions with hydroxypropyl cellulose

1990-12-03

1992-03-31

Stoll, Robert L.

Compositions

Leather or fur treating

2528554, 2523153, 523130, 166274, 166275, 166273, 166308, E21B 4326, E21B 4322

Patent

active

051005670

ABSTRACT:
The invention is an aqueous shear-thickening composition comprising in one embodiment about 0.2% to about 1% by weight of hydroxypropyl cellulose having an average molecular weight between about 1,000,000 and about 1,300,000, about 0.1% to about 0.7% by weight of an alkali metal dodecyl sulfate in a ratio of about 2.5:1 to about 1.5:1 hydroxypropyl cellulose to alkali metal dodecyl sulfate, and water containing less than about 2000 ppm TDS.

REFERENCES:
patent: 3578781 (1968-12-01), Abrams et al.
patent: 3638728 (1972-02-01), Hill
patent: 3675716 (1972-07-01), Farmer, Jr. et al.
patent: 3792731 (1974-02-01), Fuerbacher et al.
patent: 3989534 (1976-11-01), Plungulan et al.
patent: 4141766 (1979-02-01), Cameron
patent: 4340492 (1982-07-01), Stournas
patent: 4646834 (1987-03-01), Bannister
patent: 4694906 (1987-09-01), Hutchins et al.

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