Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for isolating polyphenylene ether polymer resins from solution










Image Number 6 for United States Patent #6860966.

A method of removing substantially all solvent from a solution containing a polyphenylene ether polymer resin with little by-product formation (less than 250 ppm) is provided. The method employs a wiped thin film evaporator with a cylindrical heating chamber operating under conditions that satisfy the relationships defined by Equations I and II.Yields are maximized wherein values for feed rate (m) and percent solids (C) are selected to provide a maximum value for the output, Q, determined from the equation m*C=Q and the melt viscosity of the polyphenylene ether product is less than 50,000 centipoise at the operating temperature of the cylindrical heating chamber.








 
 
  Recently Added Patents
Method for drug screening and characterization by calcium flux
Medical injector
Context-sensitive views
Fibrous laminate interface for security coatings
Switching power supply apparatus with overcurrent limiting and prolonged holding time
Front face of vehicle wheel
Methods for increasing efficacy of FOLR1 cancer therapy
  Randomly Featured Patents
RF Admittance apparatus and method for monitoring the contents of a pipe
Vehicle rollover sensor
Rotational inductive accelerometer
Incorporating prior information from pre aligned image pairs into EMST-based image registration
Silver halide photographic emulsions used for electron beam recording
Window component extrusion
Real time charging control of a fast battery charger
Method for producing 2-keto-L-gulonic acid
Process for recovering metal from aluminum dross
Fiber optic tree standard