Patent ID: 8389050
Filing Date: 2013-03-05
Classification: B01J,B05D,B82Y

Abstract:
1. A method of coating an inner surface of a tubular workpiece, said method comprising: at least partially immersing a tubular workpiece lengthwise into a liquid subphase having a liquid surface; inserting a first end of a first delivery tube into the tubular workpiece such that a distal end surface of the first delivery tube is within a distance d of the liquid surface; dispensing a first suspension of coating particles and liquid carrier from the first delivery tube to form a monolayer of the coating particles on the liquid surface in an area of the liquid surface between the inner surface of the tubular workpiece and an outer surface of the first delivery tube; and withdrawing at least a portion of the tubular workpiece from the liquid subphase so as to form a coating of the coating particles on a portion of the inner surface of the workpiece.