| 摘要 |
Hot-melt adhesives with good adhesion contain 20-100:80-0 blends of hydrolyzed (250%) 50-95:50-5 ethylene-vinyl acetate polymers (I) and/or their unsatd. aci-grafted derivs. with compatible resins, tackifiers, and optionally waxes. Thus, a blend of sapond. (90%) 72:28 I (Dumilan D-219, melt index 170 g/10 min) 35, C5 petroleum resin (Quinton 1500, softening point 100oC, acid no. ( 1, sapon no. 155-175, Br no. 55-70) 35, and paraffin wax (m.p. 66oC) 30 parts shows no phase sepn. at 20 or 160oC and forms a compatible molded sheet.
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