Dry blend thickening composition containing benzoquinone and pol

Details Dry blend thickening composition containing benzoquinone and pol Dry blend thickening composition containing benzoquinone and pol

1983-02-11

1984-09-04

Guynn, Herbert B.

Compositions

Preservative agents

Anti-corrosion

252 85A, 252 85C, 252 855R, 252 855D, 2523635, 536114, C09K 700, B01J 1300

Patent

active

044696205

ABSTRACT:
This invention provides a particulate dry blend thickening agent consisting of polygalactomannan gum (e.g., guar gum), benzoquinone, and a basic reagent (e.g., sodium carbonate).
This invention further provides a process for preparing a viscoelastic aqueous solution which contains a benzoquinone ether adduct of polygalactomannan gum that is formed in situ.
An invention thixotropic aqueous medium is characterized by excellent heat stability and high tolerance to the presence of inorganic salts.
A unique property of an invention thixotropic aqueous medium is a time-dependent gradual restoration of high viscosity after cessation of high shear deformation.

REFERENCES:
patent: 2555265 (1949-09-01), Bergman
patent: 3202556 (1965-08-01), Chrisp
patent: 3697498 (1972-10-01), Browning et al.
patent: 4183765 (1980-01-01), Podlas
patent: 4246124 (1981-01-01), Swanson

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