FIELD: chemistry.
SUBSTANCE: invention relates to technology of production of reinforcing filaments, namely, filaments in form of glass braids, covered with appret composition in form of water or water-free dispersion. Composition includes, at least one silane of general formula Si(R1)(R2)(R3)(R4), where - R1, R2 and R3 are selected from: -H (except R3), -Cl, -O-R5, -O-R6-O-R5, -O-(C=O)-R5, -O-R6-(C=O)-R5; R5 and R6 - radicals, in which main chain contains 1-4 atoms of carbon; - R4= -R7-NHR8; R7 - radical, branched with at least two side chains, and main chain contains from 2 to 6 atoms of carbon; R8 = -H, -R9-NH2, -R10-NH-R9-NH2; R9 - radical, containing from 1 to 12 atoms of carbon, or carbonyl; and R10 - radical, in which main chain contains from 1 to 6 atoms of carbon.
EFFECT: production of reinforcing filaments and composites, resistant to aggressive medium.
9 cl, 3 ex
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Authors
Dates
2008-10-20—Published
2003-03-26—Filed