FIELD: polymer materials.
SUBSTANCE: invention relates to the technology of producing thin fibers. A thin fiber is formed from a composition or coated with a composition containing an epoxy and a polymer component. The polymer component contains a polymer containing 4-vinylpyridine. The epoxy is at least difunctional. The polymer containing 4-vinylpyridine and the epoxy react without increasing the temperature of the composition above 80°С. The invention also relates to a filter medium containing fine fibers.
EFFECT: filtration efficiency of the filter medium is maintained after soaking in ethanol and hot water.
21 cl, 14 dwg, 1 tbl, 7 ex
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