Patent ID: 8722818

Claim:
A method for polymerizing olefins comprising: (a) during a polymerization reaction using at least one static probe in a fluid bed reactor system to monitor a coating comprising a film of polymer on a surface of the reactor system and a distal portion of each said static probe, wherein the coating is exposed to flowing fluid within the system, said monitoring including steps of: (i) during a first interval of time during the reaction in the reactor system, operating the static probe to generate high speed data indicative of bubbling in the fluid bed; and (ii) determining from the high speed data at least one electrical property of the coating; (b) comparing the electrical property determined in step (a) with a reference breakdown voltage of the coating; and (c) if the electrical property is less than the reference breakdown voltage of the coating adding continuity additive to the polymerization reactor for a period of time until the determined electrical property of the coating is greater than or equal to the reference breakdown voltage of the coating.