Compositions containing quaternary ammonium compounds
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United States of America Patent
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Issued Date -
Jan 31, 2008
app pub date -
Jul 28, 2006
filing date -
Jul 28, 2006
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Abandoned
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Abstract
This invention relates to compositions containing quaternary ammonium compounds in which the nitrogen atom is substituted by at least one alkyl group having at least 12 carbon atoms, characterized in that the composition includes at least 20% in weight by weight of the total composition, of ammonium halides in which the nitrogen atom is substituted by at least one alkyl group having at least 14 carbon atoms and more than 5%, preferably more than 7% in weight by weight of the total composition, of ammonium halides in which the nitrogen atom is substituted by at least one alkyl group having at least 16 carbon atoms. This invention also relates to ophthalmic oil-in-water emulsions containing such compositions, said ophthalmic emulsions being useful for eye care or for the treatment of eye conditions.
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