| 摘要 |
PURPOSE:To obtain titled composition of improved processability without impairing transparency and flexibility, by incorporating specific ethylene-vinyl acetate copolymer in a polymer derived from suspension graft polymerization of vinyl chloride to swelled ethylene-vinyl acetate copolymer. CONSTITUTION:(A) 100pts.wt. of a polymer prepared by suspension graft polymerization, in an aqueous medium, of (i) 5-200pts.wt. of vinyl chloride or monomer mixture consiting mainly of the same to (ii) while keeping a swelled state, 100pts.wt. of ethylene-vinyl acetate copolymer with a vinyl acetate content 1-60 (pref. 5-50)wt% is kneaded together with stabilizer etc. being sufficiently melted and then gelled followed by incorporation of (B) 1-99(pref. 5-99)pts.wt. of ethylene-vinyl acetate copolymer with a vinyl acetate content 10-50wt% thus obtaining the objective flexible vinyl chloride resin composition free from plasticizer. |
