Compositions – Oxidative bleachant – oxidant containing – or generative – Composition containing a stabilizer or a product in the form...
Patent
1992-01-13
1993-07-06
Lovering, Richard D.
Compositions
Oxidative bleachant, oxidant containing, or generative
Composition containing a stabilizer or a product in the form...
2521862, 25218642, 25217412, 25217413, 252 95, 252DIG5, C01B 1510, C11D 3395
Patent
active
052251020
ABSTRACT:
Methods and compositions for increased stability of enzymes in oxidant dry bleach. Enzyme stability is adversely affected by increased temperature, humidity, and the presence of strong oxidants, such as peracids. The instant invention provides enzyme stability in the presence of oxidant bleaches by coating or encapsulating the enzyme, while providing enzyme solubility suitable for use in bleach mixtures upon introduction to an aqueous medium. Particularly, alkali and neutral materials act as protection agents, which neutralize oxidant species before they contact and denature the enzyme. Other standard bleaching composition adjuncts such as builders, fillers, buffers, brighteners, fragrances, and the like may be included in the enzyme-containing oxidant bleach composition in addition to the discrete coated enzyme granules.
REFERENCES:
patent: 4626372 (1986-12-01), Kaufmann et al.
patent: 4651733 (1987-03-01), Mobin-Uddin
patent: 4965012 (1990-10-01), Olson
patent: 4973417 (1990-11-01), Falhoit
patent: 5089167 (1992-02-01), Coyne et al.
patent: 5093021 (1992-03-01), Coyne et al.
Polyvinyl Alcohol, Properties and Applications, Ed. C. A. Finch, John Wiley & Sons, 1973.
Coyne Thomas S.
England J. Bruce
Haendler Blanca L.
Mitchell Frances E.
Steichen Dale S.
Anthony Joseph D.
Hayashida Joel J.
Lovering Richard D.
Mazza Michael J.
Pacini Harry A.
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