FIELD: chemistry.
SUBSTANCE: separating organosilicon O/W type microemulsion consists of 80-40 wt % water and a dispersed phase containing polydiorganosiloxane of general formula R1Si(CH3)2O[Si(CH3)2O]x[Si(CH3)R2O]ySi(CH3)2R1 where R'-CH3, C2H3, OH; R2 - alkyl C1-C14, CH2CH2CF3, C6H5, (CH2)3OCH2(CF2)4H; x=30-1000, y=0-350, in amount of 10-30 wt % and an emulsifying agent - polyoxyalkylene polyorganosiloxane block-copolymer of general formula R3Si(CH3)2O[Si(CH3)2O]m[SiCH3R4O]n[SiCH3R2O]pSi(CH3)2R3 where R2 has the same value as above, R3-CH3, C8H17, C12H25, CH2CH2CF3, C6H5; m=10-50, n=50-5, p=3-10; R4-(CH2)3O[CH2CH2O]a[CH(CH3)CH2O]bR5; where R5-H, CH3, C4H9; a=0-25, b=25-0, in amount of 10-30 wt %.
EFFECT: obtaining a separating organosilicon microemulsion with longer service life of the emulsion in diluted form for efficiently conducting different processes.
1 dwg, 11 ex
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Authors
Dates
2012-05-10—Published
2010-10-19—Filed