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 and system for leveraging the power of one's social-network in an online marketplace
Loudspeaker grille
Method and system for phase-sensitive magnetic resonance imaging
Reliability fire pressure switch
Glass or glass-ceramic pane reflecting infrared radiation
Alkaline battery
Functional component compensation reconfiguration system and method
  Randomly Featured Patents
Stunning apparatus
Electrolyte capacitor and method of making the same
Method for off-hook detection during ringing and the use of a subscriber line interface circuit for off-hook detection during ringing
Method for estimating permeability of earth formations by processing stoneley waves from an acoustic wellbore logging instrument
Blade sharpening assembly
Method of operating a data transmission network
Single point modulator having a PLL circuit
Methods and apparatus for parsing extensible markup language (XML) data streams
Dresser
Golf glove holder