Compositions containing quaternary ammonium compounds

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C424S427000

Reexamination Certificate

active

08071114

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 said 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.

REFERENCES:
patent: 5188826 (1993-02-01), Chandrasekaran et al.
patent: 5190936 (1993-03-01), Laugier et al.
patent: 5767153 (1998-06-01), Bowman et al.
patent: 6375936 (2002-04-01), Allard et al.
patent: 2006/0100288 (2006-05-01), Bague et al.
patent: WO95/31958 (1995-11-01), None
Roboit, Cetalkonium Chloride Product Infor., Copyright 2003, p. 1.
Generic Name: Latanoprost, MedicineNet.om, Jul. 23, 1998, pp. 1-2.
Adriaens,Els, Kirstof Dierckens, Tiene G. M. Bauters, Hans J. Nelis, Freddy van Goethem, Phillipe Vanparys and Jean Paul Remon, The Mucosal Toxicity of Different Benzalkonium Chloride Analogues Evaluated with an Alternative Test Using Slugs, Pharmaceutical Research, vol. 18, No. 7, 2001, pp. 937-942.
Pignatello, R., C. Bucolo, G. Spedalieri, A. Maltese, G. Puglisi, Flurbiprofen-loaded acrylate polymer nanosuspensions for ophthalmic application, Biomaterials 23 (2002) 3247-3255.
Chemical Land, Benzyl Dimethyl Hexadecyl Ammonium Chloride, pp. 1-2, Dec. 15, 2009.
Wikipedia, Demulcent, pp. 1-2, Dec. 16, 2009.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Compositions containing quaternary ammonium compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compositions containing quaternary ammonium compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compositions containing quaternary ammonium compounds will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4315559

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.