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
High purity diphenyl sulfone, preparation and use thereof for the preparation of a poly(aryletherketone)
Performance apparatus and electronic musical instrument
Method and system for associating a cell-sector with time-dependent location parameters
High pressure refolding of protein aggregates and inclusion bodies
System and method for associating financial transaction data with user's project data
Moulded tie strips
Secure data entry device
  Randomly Featured Patents
Turbine airfoil with endwall horseshoe cooling slot
Certain 2-substituted-2,3-dihydro-5-benzofuranol esters of certain sulfonic acids
Spectrum-based adaptive canceller of acoustic echoes arising in hands-free audio
Complex band-pass filter for use in digital radio receiver and complex band-pass .DELTA.-.SIGMA. AD modulator using the same
Integrated power module for hybrid and fuel cell vehicles
Todopropargylsulphamides, microbicidal compositions and use
Method of searching information site by item keyword and action keyword
High bandwidth split bus
System for selectively enabling data tables
Distributed circular geometry power amplifier architecture