Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – With halogen – nitrogen – oxygen – or phosphorus containing...
Reexamination Certificate
2005-01-18
2005-01-18
Hardee, John R. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
With halogen, nitrogen, oxygen, or phosphorus containing...
Reexamination Certificate
active
06844306
ABSTRACT:
The invention relates to water-soluble, chlorhexidine-containing compositions having a long shelf life. The compositions are in the form of powder, granules or tablets and consist substantially of (i) a salt of chlorhexidine with 2 moles of a sugar acid and a microbicidally active quaternary ammonium bromide, or of (ii) chlorhexidine, a sugar acid or sugar lactone, with at least 2 moles of sugar acid or sugar lactone being present per mole of chlorhexidine, and a microbicidally active quaternary ammonium bromide. Peferred compositions consist substantially of chlorhexidine digluconate and N-cetyl-N,N,N-trimethylammonium bromide (cetrimide) in a weight ratio of 1:1 to 1:10. The solid compositions are stable, with little or no p-chloroaniline splitting off during storage.
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Habrich Jolanta
Merz Friedhelm
Werle Peter
Degussa - AG
Hardee John R.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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