FORFARANDE SAMT MEDEL FOR FRAMSTELLNING AV VARMSMELTKOMPOSITIONER AV VAX OCH EN ETEN-VINYLACYLAT-SAMPOLYMER

摘要

Hot melt compositions are produced by preparing a concentrate of wax and copolymer, irradiating the concentrate to produce an irradiated concentrate and then diluting the irradiated concentrate with additional quantities of wax to obtain the hot melt composition. The improved three step method permits the incorporation of copolymers having higher molecular weights in the hot melt composition; it was also found that the copolymers are more readily dissolved in the wax. The copolymers used are the ethylene-vinyl acylate and ethylene-alkyl acrylate copolymers.