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
Apparatus, system, method, and computer program product for registering the time and location of weapon firings
Data processing in intra-site handover
Knob
Previewing effects applicable to digital media content
Process for preparing fondaparinux sodium and intermediates useful in the synthesis thereof
Alert notification distribution tool
Method and system for authenticating a mobile terminal in a wireless communication system
  Randomly Featured Patents
Vehicular lamp and method of manufacturing same
Surface modified organic inorganic hybrid glass, protecting group induced alcohol or its derivative and producing method thereof
Polyester filament having excellent antistatic properties and process for preparing the same
Paintball munition chamber and paintball gun utilizing the same
Row crop rogue vehicle
Pliers with movable joint
Olefinic process for preparing aryl-substituted aliphatic carboxylic esters
Surge-pressure removing system for back-pressure in injection cylinder
Optical assembly
Thread winding safety device of a sewing machine