Semifluorinated alkanes and the use thereof

• US 6,489,367 B1
• Filed: 05/15/2001
• Issued: 12/03/2002
• Est. Priority Date: 09/29/1995
• Status: Expired due to Term

• Current Assignee: Novaliq GmbH
• Original Assignee: Hasso Meinert
• Inventors: Meinert, Hasso
• Primary Examiner(s): PARSA, JAFAR F
• Application Number:
  US09/854,594
• Publication Number:
  US 20020198266A1
• Time in Patent Office: 567 Days
• Field of Search: 570/134, 514/746, 514/886, 514/887, 424/52
• US Class Current: 514/746
• CPC Class Codes: A61K 47/06 Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
• CPC Class Codes: A61K 9/0014 Skin, i.e. galenical aspects of topical compositions non-active ingredients are additionally classified in A61K47/00; A61K9/0009, A61K9/0021, A61K9/7015, A61K9/7023 take precedence; cosmetic preparations A61K8/00, A61Q; preparations for wound dressings or bandages A61L26/00
• CPC Class Codes: A61K 9/0026 Blood substitute; Oxygen transporting formulations; Plasma extender
• CPC Class Codes: A61K 9/0048 Eye, e.g. artificial tears
• CPC Class Codes: A61K 9/007 Pulmonary tract; Aromatherapy
• CPC Class Codes: A61L 27/00 Materials for grafts or prostheses or for coating grafts or prostheses dental prostheses A61C13/00; shape or structure of prostheses A61F2/00; use of preparations for artificial teeth A61K6/80; artificial kidneys A61M1/14
• CPC Class Codes: A61P 17/00 Drugs for dermatological disorders
• CPC Class Codes: A61P 17/02 for treating wounds, ulcers, burns, scars, keloids, or the like
• CPC Class Codes: A61P 17/16 Emollients or protectives, e.g. against radiation
• CPC Class Codes: A61P 27/04 Artificial tears; Irrigation solutions
• CPC Class Codes: A61P 41/00 Drugs used in surgical methods, e.g. surgery adjuvants for preventing adhesion or for vitreum substitution
• CPC Class Codes: C07C 17/23 by dehalogenation
• CPC Class Codes: C07C 17/269 of only halogenated hydrocarbons
• CPC Class Codes: C07C 17/275 of hydrocarbons and halogenated hydrocarbons
• CPC Class Codes: C07C 19/08 containing fluorine
• CPC Class Codes: C07C 19/16 and iodine
• CPC Class Codes: C10L 1/201 aliphatic bond
• CPC Class Codes: C10L 1/207 containing halogen with or without hydrogen
• CPC Class Codes: C10M 105/52 containing carbon, hydrogen and halogen only
• CPC Class Codes: C10M 107/38 containing halogen
• CPC Class Codes: C10M 131/04 : aliphatic
• CPC Class Codes: C10M 147/02 : Monomer containing carbon, hydrogen and halogen only
• CPC Class Codes: C10M 2211/022 : aliphatic
• CPC Class Codes: C10M 2211/06 : Perfluorinated compounds
• CPC Class Codes: C10M 2213/02 : obtained from monomers containing carbon, hydrogen and halogen only
• CPC Class Codes: C10M 2213/062 : Polytetrafluoroethylene [PTFE]

Abstract

The invention concerns semi-fluorinated alkanes of the general formulae R_FR_H or R_FR_HR_F, R_F being a linear or branched perfluoroalkyl group and R_H being a linear or branched saturated (hydrocarbon)-alkyl group.

Claims

1. A method for using a medication as a skin remedy comprising administering a composition which comprises an aqueous emulsion of at least one semifluorinated alkane of the general formula

2. A method for using a medication as a skin remedy according to claim 1 wherein the medication is in the form of an aqueous emulsion of at least one semifluorinated alkane with a biocompatible emulsifier, said emulsion having a high gas solubility.

3. A method for using a medication as a skin remedy according to claim wherein the medication allows gas transportation therethrough.

4. A method for using a medication as a skin remedy according to claim 3 wherein the medication is in the form of an aqueous emulsion of at least one semifluorinated alkane with a biocompatible emulsifier, said emulsion having a high gas solubility.