(JP2000159965-A)   NOVELTY - Preparing a solution and/or dispersion containing sulfonic(per)fluorinated ionomers comprises dissolving them at between room temperature and 150degreesC (preferably 50-100degreesC) in a monophasic ternary mixture constituted of water, a lower alcohol and a fluoro(poly)oxyalkylene having one hydrogen atom in at least one fluorinated end group in which the polymer particle sizes are in the range 30-100 nm.    USE - The solutions can be used in electrolytic and fuel cells.    ADVANTAGE - The particle size is smaller which increases sulfonic group availability. Preparation does not require high temperatures or the use of pressure equipment such as autoclaves.    (CN1254727-A)   NOVELTY - Preparing a solution and/or dispersion containing sulfonic(per)fluorinated ionomers comprises dissolving them at between room temperature and 150degreesC (preferably 50-100degreesC) in a monophasic ternary mixture constituted of water, a lower alcohol and a fluoro(poly)oxyalkylene having one hydrogen atom in at least one fluorinated end group in which the polymer particle sizes are in the range 30-100 nm.    USE - The solutions can be used in electrolytic and fuel cells.    ADVANTAGE - The particle size is smaller which increases sulfonic group availability. Preparation does not require high temperatures or the use of pressure equipment such as autoclaves.    (US6197903-B1)   NOVELTY - Preparing a solution and/or dispersion containing sulfonic(per)fluorinated ionomers comprises dissolving them at between room temperature and 150degreesC (preferably 50-100degreesC) in a monophasic ternary mixture constituted of water, a lower alcohol and a fluoro(poly)oxyalkylene having one hydrogen atom in at least one fluorinated end group in which the polymer particle sizes are in the range 30-100 nm.    USE - The solutions can be used in electrolytic and fuel cells.    ADVANTAGE - The particle size is smaller which increases sulfonic group availability. Preparation does not require high temperatures or the use of pressure equipment such as autoclaves.