Patent ID: 6635224
Filing Date: 2003-10-21
Classification: B01J,G01N,Y10T

Abstract:
An online polymer monitoring apparatus for continuous determination of polymer properties, comprising:a) a continuous online flow through detector means comprising at least one inlet, one outlet, a steady state light scattering detector, and a polymer concentration detector, said detector means being capable of continuously determining at least one parameter of a polymer-containing sample, said at least one parameter being selected from the group consisting of polymer concentration, polymer molecular weight, molecular size, and concentration of species in said polymer-containing sample; b) a continuous sampling and delivery system for continuously collecting a representative. sample from a polymer-containing process stream and continuously delivering the sample to the detector means, said sampling and delivery system comprising a first flow means having a first end connected to the polymer-containing process stream and a second end connected to the detector means inlet; and c) a means associated with the flow through detector means for calculating the polymer properties in the representative sample in response to data obtained by said detector means; wherein the polymer properties are determined at time intervals less than about 30 seconds.