Multistage polymerization process with independently adjustable radiation sources
Abstract
Abstract EMULSIONS AND SOLUTIONS OF MONOMER ARE CATALYTICALLY POLYMERIZED BY IRRADIATION BY CIRCULATING A MONOMER CONTAINING PROCESS STREAM THROUGH A RADIATION FIELD IN A FIRST STAGE, REMOVING THE HEAT OF POLYMERIZATION WHILE MAINTAINING TEMPERATURE CONTROL, FEEDING FROM THE FIRST STAGE INTO A SECOND PROCESS STAGE WHICH IS SIMILAR IN OPERATION TO THE FIRST STAGE BUT WITH A HIGHER PROPORTION OF POLYMER, AND OPERATING THE SECOND STAGE AT A PREDETERMINED TEMPERATURE, AND CONTINUING THE STEPS OF IRRADIATION, UNDER CONDITIONS OF GOOD TEMPERATURE CONTROL UNTIL THE REACTION IS COMPLETED OR SUBSTANTIALLY COMPLETED. THE VOLUME OF REACTANTS EXPOSED TO THE RADIATION FIELD OR THE RADIATION DOSE TO WHICH THE VARIOUS PROCESS STREAMS ARE EXPOSED IS ADJUSTED TO CONTROL THE POLYMER CONTENT OF EACH STAGE AND PROVIDE FOR A STEADY FLOW OF REACTANTS THROUGH THE SYSTEM.
Inventors
- 👤 Jackson A Ransohoff
Bibliographic Details
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