PROCESS OF INDUCTION OF ELECTROSTATIC CHARGE ON POWDERS USED FOR COATING Russian patent published in 2001 - IPC

FIELD: deposition of coats. SUBSTANCE: invention is related to method meant to raise quality of electrostatic charge induced on powder of resin employed in deposition of powder coat. Given process provides opportunity to form more qualitative charge to be induced on particles of powder by injection of reagent improving electrostatic properties of powder into compound of resin or on its surface. One aspect of given invention refers to method of deposition of coat on backing with usage of resin powder having electrostatic charge of raised quality. Another aspect of proposed invention is related to system of induction of charge by means of induction/conduction to deposit coat on backing. Process includes preparation of mixture from above-mentioned powders and polyalkylene ester used in the capacity of electrostatically active modifying agent intended to raise quality of charge induced on given powder and placement of this mixture into induction/current conducting environment to give this powder specific resistance from 10⁹ to 10¹³ ohm- m under relative humidity of 20%. EFFECT: raised quality of electrostatic charge. 3 cl, 6 dwg