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
System and method of interfacing co-processors and input/output devices via a main memory system
Method and structure for forming ETSOI capacitors, diodes, resistors and back gate contacts
Secure provisioning of a portable device using a representation of a key
Automatic detection of image degradation in enhanced vision systems
Pre-primed roofing membrane
High performance strained source-drain structure and method of fabricating the same
Electrode composition with enhanced performance characteristics
  Randomly Featured Patents
Power steering system
Diffuser aspiration for a tip turbine engine
Multicylinder heat engines
Method and apparatus for recording analog video signal in compressed digital format
Memory banks with pipelined addressing and priority acknowledging and systems and methods using the same
Method and apparatus for pre-computing and using multiple placement cost attributes to quantify the quality of a placement configuration within a partitioned region
Method for local oxidation of silicon employing two oxidation steps
Combined climate-controlled kennel supporting enclosure and carrying kennel and associated method
Internal combustion engine fuel control system with fuel supply compensated for high-temperature re-starts
Methods and apparatus for avoiding inter-chassis redundancy switchover to non-functional standby nodes