초록 ▼

The present invention provides a process for generating a reagent of sulfur trioxide in a carrier. A source of sulfur trioxide, a carrier, and oleum are introduced into a reagent generator. The sulfur trioxide, carrier, and oleum are then contacted to provide a reagent of sulfur trioxide in the carr

The present invention provides a process for generating a reagent of sulfur trioxide in a carrier. A source of sulfur trioxide, a carrier, and oleum are introduced into a reagent generator. The sulfur trioxide, carrier, and oleum are then contacted to provide a reagent of sulfur trioxide in the carrier. Separate oleum and sulfur trioxide in carrier phases are formed, and oleum is removed from the reagent generator. The sulfur trioxide in carrier reagent is then ready to be used, preferably in a process to treat the surfaces of polymeric resin material such as medical devices fabricated from a variety of polymeric resins. The carrier may be either a liquid halocarbon solution or an inert gas.

대표청구항 ▼

A process for regenerating a reagent of sulfur trioxide in a carrier comprising the steps of: (a) introducing sulfur trioxide, a carrier selected from the group consisting of non-reactive liquid halocarbons and non-reactive gases, and oleum into a reagent generator, (b) contacting said sulfur trioxi

A process for regenerating a reagent of sulfur trioxide in a carrier comprising the steps of: (a) introducing sulfur trioxide, a carrier selected from the group consisting of non-reactive liquid halocarbons and non-reactive gases, and oleum into a reagent generator, (b) contacting said sulfur trioxide, said carrier, and said oleum to form a reagent phase containing a reagent of sulfur trioxide in a carrier and an oleum phase containing impurities, (c) removing said reagent phase from said reagent phase generator, (d) thereafter utilizing said reagent to treat a surface and form a spent reagent, (e) thereafter recycling said spent reagent to said reagent generator for regeneration, (f) removing said oleum phase from said reagent generator, (g) regenerating the oleum in said oleum phase to remove said impurities, and (h) recycling the regenerated oleum to said reagent generator.