METHOD OF PRODUCING WATER AND OIL REPELLENT AGENT Russian patent published in 2009 - IPC C08L33/08 C08L33/10 C08F220/10 C08F220/22 C08F220/24 C08F214/18 C08F2/24 D06M15/263 

Abstract RU 2349614 C2

FIELD: chemistry.

SUBSTANCE: proposed method of producing a water and oil repellent agent involves emulsification of (a) 15-85 wt % perfluoroalkylethylacrylate, (b1) 5-65 wt % 2-ethylhexylmethacrylate and (b2) 1-40 wt % benzyl methacrylate in the presence of (c) a cation surface active substance of the polyethylene oxide adduct type, or neutralised organic acid compound of an amine, with polyethylene oxide chains, and (d) compounds based on polypropylene glycol, with molecular weight 300-3000, or hexylene glycol, with subsequent copolymerisation reaction in the presence of a polymerisation initiator, and mixing the obtained aqueous dispersion with (e) blocked isocyanate.

EFFECT: satisfactory water and oil repellent for synthetic and natural fibre.

5 cl, 22 ex, 5 tbl

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RU 2 349 614 C2

Authors

Sagava Tosimasa

Tatsu Kharujosi

Dates

2009-03-20Published

2005-05-27Filed