FIELD: chemistry.
SUBSTANCE: invention relates to composite abrasives and can be used in polishing or finishing metal surfaces in a wide range. The surface treatment article contains an organic matrix and binder. The binder contains a reaction product of a block polyurethane prepolymer and a mixture of aromatic amines. The aromatic amines include polymethylene polyanilines, characterised by functionality equal to or greater than 4.
EFFECT: invention enables surface treatment without contamination, improves product longevity and improves heat resistance.
15 cl, 2 ex
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