Global Patent Index - EP 2490528 A4

EP 2490528 A4 20130612 - METHOD FOR WETTING A POWDER CONTAINING BENZOYL PEROXIDE

Title (en)

METHOD FOR WETTING A POWDER CONTAINING BENZOYL PEROXIDE

Title (de)

VERFAHREN ZUR BENETZUNG EINES BENZOYLPEROXIDHALTIGEN PULVERS

Title (fr)

PROCÉDÉ POUR MOUILLAGE D'UNE POUDRE CONTENANT DU PEROXYDE DE BENZOYLE

Publication

EP 2490528 A4 20130612 (EN)

Application

EP 09850650 A 20091021

Priority

US 2009005732 W 20091021

Abstract (en)

[origin: WO2011049547A1] Powder containing benzoyl peroxide is readily wetted by contacting the powder with a liquid containing water and one or more water-soluble organic solvents in a concentration sufficient to reduce the surface tension of the liquid to less than 64 dynes/cm.

IPC 8 full level

A61K 31/19 (2006.01); A61K 9/10 (2006.01); A61P 17/10 (2006.01); C09K 23/00 (2022.01)

CPC (source: EP)

A61K 9/0014 (2013.01); A61K 9/10 (2013.01); A61K 31/19 (2013.01); A61K 47/10 (2013.01); A61P 17/00 (2017.12); A61P 17/10 (2017.12); A61P 17/12 (2017.12)

Citation (search report)

  • [X] US 6117843 A 20000912 - BAROODY LLOYD J [US], et al
  • [E] WO 2009148584 A1 20091210 - DOW PHARMACEUTICAL SCIENCES [US], et al
  • [Y] GOLD MICHAEL H: "A New, Once-daily, Optimized, Fixed Combination of Clindamycin Phosphate 1.2% and Low-concentration Benzoyl Peroxide 2.5% Gel for the Treatment of Moderate-to-Severe Acne.", THE JOURNAL OF CLINICAL AND AESTHETIC DERMATOLOGY MAY 2009, vol. 2, no. 5, May 2009 (2009-05-01), pages 44 - 48, XP002696303, ISSN: 1941-2789
  • [A] ANONYMOUS: "ACANYA (clindamycin phosphate and benzoyl peroxide) kit [Dow Pharmaceuticals Sciences]", 1 October 2009 (2009-10-01), pages 1 - 10, XP002696304, Retrieved from the Internet <URL:http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=dabcc73b-e02f-4ebf-85f0-91d33daaf8c5> [retrieved on 20130429]
  • [Y] ANONYMOUS: "Desired Characteristics and Applications of Pharmaceutical suspensions", 5 January 2007 (2007-01-05), pages 1 - 69, XP002696305, Retrieved from the Internet <URL:http://www.pharmainfo.net/free-books/pharmaceutical-suspensionsa-review> [retrieved on 20130429]
  • See references of WO 2011049547A1

Citation (examination)

  • "Remington : the science and practice of pharmacy", 1 January 2000, United States, ISBN: 97809127340410, article ALFONSO R GENNARO: "Remington : the science and practice of pharmacy", pages: 278 - 279, XP055176385
  • GONZALO VHQUEZ ET AL: "Surface Tension of Alcohol + Water from 20 to 50 "C", J. CHEM. ENG. DATA, vol. 40, 1 January 1995 (1995-01-01), pages 611 - 614, XP055176352
  • KOICHIRO NAKANISHI ET AL: "Surface tension of aqueous solutions of some glycols", JOURNAL OF CHEMICAL & ENGINEERING DATA, vol. 16, no. 1, 1 January 1971 (1971-01-01), pages 44 - 45, XP055176377, ISSN: 0021-9568, DOI: 10.1021/je60048a010
  • ANONYMOUS: "Notes on Polymer Rheology Outline", 20 November 2002 (2002-11-20), pages 1 - 23, XP055228485, Retrieved from the Internet <URL:http://www.eng.utoledo.edu/coe/polymer/courses/pdfs/rheology.pdf> [retrieved on 20151113]

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

WO 2011049547 A1 20110428; AU 2009354152 A1 20120510; AU 2009354152 B2 20150702; BR 112012009644 A2 20150929; CA 2777489 A1 20110428; CA 2777489 C 20181120; EP 2490528 A1 20120829; EP 2490528 A4 20130612; JP 2013508359 A 20130307; JP 5784619 B2 20150924; MX 2012004715 A 20120808; MX 350488 B 20170907; RU 2012120747 A 20131127; RU 2572693 C2 20160120; ZA 201202938 B 20121227

DOCDB simple family (application)

US 2009005732 W 20091021; AU 2009354152 A 20091021; BR 112012009644 A 20091021; CA 2777489 A 20091021; EP 09850650 A 20091021; JP 2012535173 A 20091021; MX 2012004715 A 20091021; RU 2012120747 A 20091021; ZA 201202938 A 20120420