METHOD FOR PREPARING FLUOROALYKYL IODIDE TELOMER MIXTURE AND FLUORINE-CONTAINING (METH)ACRYLIC ESTER MIXTURE

PROBLEM TO BE SOLVED: To obtain a mixture of telomers having a degree n of polymerization of ≥k (k being any one integer of ≥3). SOLUTION: A fluoroalkyl iodide represented by the formula: RfI (wherein Rfis a 1-10C fluoroalkyl group) is reacted with tetrafluoroethylene to obtain a reaction mixture co...

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Bibliographic Details
Main Authors TANAKA YOSHINORI, TANAKA KUNITADA
Format Patent
LanguageEnglish
Published 30.09.2004
Edition7
Subjects
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Summary:PROBLEM TO BE SOLVED: To obtain a mixture of telomers having a degree n of polymerization of ≥k (k being any one integer of ≥3). SOLUTION: A fluoroalkyl iodide represented by the formula: RfI (wherein Rfis a 1-10C fluoroalkyl group) is reacted with tetrafluoroethylene to obtain a reaction mixture comprising a mixture of fluoroalkyl iodide telomers represented by the formula: Rf(CF2CF2)nI having a degree n of polymerization of ≥1, and this mixture is subjected to a distillation process and separated into a fraction comprising a mixture of fluoroalkyl iodide telomers having a degree n of polymerization of ≤(k-1) and a fraction comprising a mixture of fluoroalkyl iodide telomers having a degree n of polymerization of ≥k to obtain the latter fraction as a product. COPYRIGHT: (C)2004,JPO&NCIPI
Bibliography:Application Number: JP20030061495