(US5945233-A)      Polybenzimidazole (PBI) pastes or gels are prepared by mixing and dissolving a polymeric PBI powder in an acid solution.    Also claimed are: (i) a PBI paste or gel having a phosphoic acid solution content of 70-99 wt. % and about 0.01-30 wt. % PBI; (ii) the PBI paste or gel; (iii) a fuel cell, optionally comprising a fabric coated with the paste or gel; (iv) a polymeric fabric or film coated with the paste or gel; and (v) a method for preparing an electrode for use in fuel cells comprising coating the electrode with the paste or gel.    USE -   The PBI paste/gel useful as electrolyte in fuel cells, especially chlorine-resistant cells, or in the preparation of adhesives.    ADVANTAGE -   Has improved electrochemical properties compared to prior art electrolytes.    (EP996990-A1)      Polybenzimidazole (PBI) pastes or gels are prepared by mixing and dissolving a polymeric PBI powder in an acid solution.    Also claimed are: (i) a PBI paste or gel having a phosphoic acid solution content of 70-99 wt. % and about 0.01-30 wt. % PBI; (ii) the PBI paste or gel; (iii) a fuel cell, optionally comprising a fabric coated with the paste or gel; (iv) a polymeric fabric or film coated with the paste or gel; and (v) a method for preparing an electrode for use in fuel cells comprising coating the electrode with the paste or gel.    USE -   The PBI paste/gel useful as electrolyte in fuel cells, especially chlorine-resistant cells, or in the preparation of adhesives.    ADVANTAGE -   Has improved electrochemical properties compared to prior art electrolytes.    (CN1280710-A)      Polybenzimidazole (PBI) pastes or gels are prepared by mixing and dissolving a polymeric PBI powder in an acid solution.    Also claimed are: (i) a PBI paste or gel having a phosphoic acid solution content of 70-99 wt. % and about 0.01-30 wt. % PBI; (ii) the PBI paste or gel; (iii) a fuel cell, optionally comprising a fabric coated with the paste or gel; (iv) a polymeric fabric or film coated with the paste or gel; and (v) a method for preparing an electrode for use in fuel cells comprising coating the electrode with the paste or gel.    USE -   The PBI paste/gel useful as electrolyte in fuel cells, especially chlorine-resistant cells, or in the preparation of adhesives.    ADVANTAGE -   Has improved electrochemical properties compared to prior art electrolytes.    (JP2001510931-W)      Polybenzimidazole (PBI) pastes or gels are prepared by mixing and dissolving a polymeric PBI powder in an acid solution.    Also claimed are: (i) a PBI paste or gel having a phosphoic acid solution content of 70-99 wt. % and about 0.01-30 wt. % PBI; (ii) the PBI paste or gel; (iii) a fuel cell, optionally comprising a fabric coated with the paste or gel; (iv) a polymeric fabric or film coated with the paste or gel; and (v) a method for preparing an electrode for use in fuel cells comprising coating the electrode with the paste or gel.    USE -   The PBI paste/gel useful as electrolyte in fuel cells, especially chlorine-resistant cells, or in the preparation of adhesives.    ADVANTAGE -   Has improved electrochemical properties compared to prior art electrolytes.