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
EpCAM as a reprogramming factor for non-pluripotent cells
Method, preprocessor, speech recognition system, and program product for extracting target speech by removing noise
Semiconductor device and fabrication method
Digital media content distribution
Method for encoding signal, and method for decoding signal
Magnetic storage apparatus
Coordinate locating method and apparatus
  Randomly Featured Patents
Object inspection and/or modification system and method
Frame supporting mechanism for centrifugal honey extractors
Portable convertible ice cooled serving table
Peptide-based immunization therapy for treatment of atherosclerosis
Techniques for shuffling video information
Housing for an electronic game apparatus
Die draft optimizing system
High-pressure discharge lamp, especially sodium vapor lamp
License document interchange format for license management system
Method for integrating pre-fabricated chip structures into functional electronic systems