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The paper presents experimental results obtained in determining the chemical composition of the base material- heat affected zone ? filler material in reworking by ultrasonic welding field. The work shows the curve of the concentration of carbon, nickel, chromium, molybdenum, iron, tungsten, silicon and cobalt in the resulted material couple. There are presented differences between reworking in ultrasonic field and common welding process. The analysis of the results obtained and presented in the paper shows the fo...

High performance environmentally friendly aqueous adhesive nanodispersions for shoe manufacture were obtained by improving the polychloroprene adherence by chemical grafting of polychloroprene latex DISPERCOLL C 84 with methyl methacrylate in the presence of benzoyl peroxide as initiator. Grafting is demonstrated by the absence of monomer and polmethylmethacrylate in dispersions, decreasing of intensity of some bands assigned to polychloroprene as well as broadening and splitting of its C-C stretching band due to ...