Protecting colloidal silica aquasols from bacterial degradation

Details Protecting colloidal silica aquasols from bacterial degradation Protecting colloidal silica aquasols from bacterial degradation

1980-09-05

1982-10-05

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

10628734, B01J 1300

Patent

active

043527442

ABSTRACT:
Colloidal silica aquasols containing about 200-675 ppm 1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride; 100-350 ppm 1,2-benzisothiazolin-3-one; or 160-800 ppm of 1,3,5-triazine-1,3,5 (2H,4H,6H)-triethanol are protected from contamination by microorganisms which cause undesirable changes in physical properties. This treatment prevents discoloration, bad odor and slime formation and increases the shelf life of colloidal silica sols to more than one year.

REFERENCES:
patent: 2823186 (1958-02-01), Nickerson
patent: 3046234 (1962-07-01), Roman et al.
patent: 3148110 (1964-09-01), McGahen
patent: 3336236 (1967-08-01), Michalski
patent: 3377275 (1968-04-01), Michalski et al.
patent: 3697220 (1972-10-01), Schwartz
patent: 3816330 (1974-06-01), Havens et al.
patent: 3860431 (1975-01-01), Payne et al.

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