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
Shoe
Intralevel conductive light shield
Parasitic element compensation circuit and method for compensating for the parasitic element
Methods and apparatus for performing multiple photoresist layer development and etching processes
Compatibility check
Transaction finance processing system and approach
DNA promoters and anthrax vaccines
  Randomly Featured Patents
Electrical connector assembly having protection partition
Machine for finishing ferrite magnetic pot cores
Microelectromechanical (MEMS) switching apparatus
Carbon dioxide corn germ oil extraction system
Method of increasing the gettering effect in the bulk of semiconductor bodies utilizing a preliminary thermal annealing step
Coffee roaster
Biplanar scarfed nacelle inlet
Hole punch device for selectively punching different arrays of holes in sheet material
Roller paint applicator for wrought iron railing
Malaria vaccines