Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Process and apparatus for continuous polycondensation










Image Number 3 for United States Patent #7431893.

An apparatus for continuously producing polyester comprises three single reactors, i.e. a single esterification reactor (first reactor), a single initial polymerization reactor (second reactor) and a single final polymerization reactor (third reactor or final polymerizer), where at least one of the first reactor and the second reactor is free from an external stirring power source, or the third reactor is a horizontal, one-shaft-type, low speed rotation type reactor. Necessary number of reactors for the esterification and polycondensation reactions can be a minimum and necessary stirring power consumption for the reaction can be a minimum, and thus polyester polymers of good quality can be efficiently produced at a minimum energy cost in a necessary minimum reactor structure.








 
 
  Recently Added Patents
Wafer level package and fabrication method
Isolated Australian coral reef fluorescent proteins and cell-based kinase or phosphatase platforms for cancer drug development
Stackable clothes drying apparatus
High performance actuator motor
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
Semiconductor device and method of manufacturing the same
Method and apparatus for sharing virtual workspaces
  Randomly Featured Patents
Bathtub assistance apparatus
Key input device combined with key display unit and digital appliance having the same
Synthesis of 2H- and 13C-substituted dithanes
Eyeglasses
Method and apparatus of uniform nozzle liquid application by way of vehicle
Method and apparatus for identifying and characterizing errant electronic files
Bundle turning units for use with conveyors
Door cartridge having a door latch mounting assembly
Process for molding composite bipolar plates with reinforced outer edges
Child safety seat for vehicles