Use of percarbamic acids and diacyl percarbamates and precursors therefor
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United States of America Patent
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Jan 9, 2007
Grant Date -
Mar 25, 2004
app pub date -
Aug 16, 2001
filing date -
Aug 18, 2000
priority date (Note) -
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Abstract
The invention provides a method of treatment of a material, comprising contacting said material with a percarbamic acid and/or diacyl percarbamate. Preferably the percarbamic acid has formula (I), where R represents an optionally substituted alkyl, aryl, heteroaryl, cycloalkyl or non-aromatic heterocyclic group, a hydrogen atom, or a group having formula (1a), where each R.sup.2 independently represents a hydrogen atom or an alkyl group; and m=0 to 30. The method provides effective bleaching agents and resterilizing agents and or bacteriocidal agents over a wide range of pH and temperatures, for a wide range of applications. Compositions comprise formula (II), whereby R is H or alkyl and L is a moiety displaced by --OOH, and hydrogen peroxide or per hydroxy anion or a precursor therefor ##STR00001##
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