Continuous process for the production of alfin polymers by polymerization of alfin monomers in an organic solvent and for recovering and recycling solvent
Abstract
Abstract A CONTINUOUS PROCESS FOR THE PREPARATION OF ALFIN POLYMERS IS PROVIDED, EFFECTING POLYMERIZATION OF THE MONOMER BY AN ALFIN CATALYST IN THE PRESENCE OF A MOLECULAR WEIGHT MODERATOR, TREATING THE ALFIN POLYMER REACTION MIXTURE WITH AN ORGANIC ESTER TO CONVERT SODIUM ACETYLIDES AND SODIUM CYCLOPENTADIENES TO ACETYLENIC CYCLOPENTADIENIC ALCOHOLS SEPARATING UNREACTED MONOMER, VOLATILE LOW POLYMER, ALCOHOLS AND SOLVENT, THEREAFTER PURIFYING SOLVENT AND RECYCLING IT AND OPTIONALLY THE MONOMER FOR REUSE, AND WASHING AND DRYING THE ALFIN POLYMER. IN THE PROCESS OF THE INVENTION, MOLECULAR WEIGHT OF THE POLYMER IS CONTROLLED BY ADJUSTMENT OF THE PROPORTION OF MOLECULAR WEIGHT MODERATOR. NO OTHER MODIFICATION OF REACTION CONDITIONS, PROPORTIONS OF CATALYST, AND OTHER PROCESS VARIABLES IS NECESSARY.
Inventors
- 👤 Theodore B Baba
Bibliographic Details
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