发明名称 |
METHOD OF OXIDATION OF TETRAFLUOROETHYLENE TO PEROXIDE SIMPLE PERFLUOROPOLYETHER PRODUCING |
摘要 |
FIELD: chemical technology. SUBSTANCE: invention relates to peroxide simple perfluoropolyethers synthesized by oxidation of tetrafluoroethylene. Oxidation of perfluoroethylene is carried out at temperature from 100 C to 40 C in the absence of UV-irradiation but in the presence of chemical initiating agent taken among fluorine and alkylhypofluorites comprising above three carbon atoms under pressure from 0 to 15 relative bars and in the presence of solvent comprising hypofluorite onle or 8 mole % of hypofluorite of total solvent amount in reaction mixture. Invention ensures to synthesize perfluoropolyethers exhibiting the higher molecular mass with optimal value of peroxide number. EFFECT: improved method of synthesis, valuable properties of products. 14 cl, 11 ex
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申请公布号 |
RU2194725(C2) |
申请公布日期 |
2002.12.20 |
申请号 |
RU19970102618 |
申请日期 |
1997.02.13 |
申请人 |
AUSIMONT S.P.A. |
发明人 |
MARCHIONNI DZHUZEPPE;GUARDA P'ER ANTONIO |
分类号 |
C07C409/16;C08F114/26;C08G65/00;(IPC1-7):C08G65/00 |
主分类号 |
C07C409/16 |
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