The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2007
Filed:
Aug. 16, 2001
David Malcolm Lewis, Otley, GB;
Jiming Yao, Toronto, CA;
Jerry S. Knapp, Pudsey, GB;
Jamie Anthony Hawkes, Bromsgrove, GB;
David Malcolm Lewis, Otley, GB;
Jiming Yao, Toronto, CA;
Jerry S. Knapp, Pudsey, GB;
Jamie Anthony Hawkes, Bromsgrove, GB;
The University of Leeds, West Yorkshire, GB;
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 Rindependently 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