- 专利标题： Continuous process for the production of alfin polymers by polymerization of alfin monomers in an organic solvent and for recovering and recycling solvent
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申请号： US3640980D申请日： 1967-10-04
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公开(公告)号： US3640980A公开(公告)日： 1972-02-08
- 发明人: BABA THEODORE B
- 申请人： NAT DISTILLERS CHEM CORP
- 专利权人： Nat Distillers Chem Corp
- 当前专利权人： Nat Distillers Chem Corp
- 优先权： US67289567 1967-10-04
- 主分类号： C08C2/02
- IPC分类号： C08C2/02 ; C08F2/00 ; C08F6/00 ; C08F36/04 ; C08D5/00
摘要：
A CONTINUOUS PROCESS FOR THE PREPARATION OF ALFIN POLYMERS IS PROVIDED, EFFECTING THE POLYMERIZATION OF THE MONOMER BY AN ALFIN CATALYST IN THE PRESENCE OF A MOLECULAR WEIGHT MODERATOR, TREATING THE ALFIN POLYMER REACTION MIXTURE WITH A SMALL AMOUNT CARBON DIOXIDE TO CONVERT ORGANOMETALLIC COMPOUNDS TO ORGANIC ACID SALTS, EXTRACTING THE ACID SALTS WITH WATER AND SEPARATING UNREACTED MONOMER, VOLATILE LOW POLYMER AND SOLVENT, AND THEREAFTER PURIFYING SOLVENT AND RECYCLING IT AND OPTIONALLY THE MONOMER FOR REUSE, AND WASHING AND DRYING THE ALFIN POLYMER.
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