polyvinyl acetate is a polymerization by VAC and ethanoic acid,It can ... used as basic material of chewing gum, bubble gum :polyvinyl acetate (food grade)which is a polymerization by VAC and ethanoic ... and taste, toughness and thermoplastic is good2)Viscosity (10% ethyl acetate liquild) , 20°C, mPa.S:1.0~4.03)Softening ...