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:
May. 13, 2008
Filed:
Oct. 17, 2003
Jonathan N. Howarth, Baton Rouge, LA (US);
Christopher J. Nalepa, Baton Rouge, LA (US);
Michael J. Sanders, Baton Rouge, LA (US);
Jonathan N. Howarth, Baton Rouge, LA (US);
Christopher J. Nalepa, Baton Rouge, LA (US);
Michael J. Sanders, Baton Rouge, LA (US);
Albemarle Corporation, Richmond, VA (US);
Abstract
Microbiological control in aqueous media and/or eradication or reduction of biofilm on a surface in contact with such media is achieved by introducing into the aqueous medium a microbiocidally effective quantity of one or more 1,3-dibromo-5,5-dialkylhydantoins where one of the alkyls is methyl and the other is a Calkyl, wherein (i) the molar quantity of 1,3-dibromo-5,5-dialkylhydantoin introduced is less than the molar quantity of N,N'-bromochloro-5,5-dimethylhydantoin that would be required to effect the same degree of microbiological control in that medium, (ii) the molar quantity of the 1,3-dibromo-5,5-dialkylhydantoin introduced releases an amount of 'free chlorine' that is greater than the amount of 'free chlorine' that would be released in that medium by an equimolar quantity of N,N′-bromochloro-5,5-dimethylhydantoin, and (iii) the amount of “free chlorine” released by the quantity of the 1,3-dibromo-5,5-dialkylhydantoin introduced is greater than the amount of “free chlorine” that could be predicted to be released by that quantity of 1,3-dibromo-5,5-dialkylhydantoin on the basis of the amount of “free chlorine” that would be released in that medium by an equimolar quantity of N,N′-bromochloro-5,5-dimethylhydantoin.