| 摘要 |
PROBLEM TO BE SOLVED: To obtain a film which is excellent in practical adhesiveness and odor barrier properties by compounding a polytrimethylene terephthalate resin with a specified amt. of a compd. selected from among 8-22C fatty acid glycerides, sorbitan fatty acid esters, rosin esters, and polyterpene resins. SOLUTION: A polytrimethylene terephthalate resin obtd. from a dicarboxylic acid component contg. at least 90 mol.% terephthalic acid and a diol component contg. 55-100 mol.% propanediol, a compd. of formula I, etc., is compounded with 1-10 wt.% at least one compd. selected from among compds. of formulas II and III, 8-22C fatty acid glycerides, sorbitan fatty acid esters, rosin esters, and polyterpene resins, thus giving the objective compsn. A wrap film obtd. by forming the compsn. has a tensile modulus of 3,000-15,000 kg/cm<2> at an average thickness of 2-50μm. In the above formulas, l is 0-3; m is 1-2; n is 2-4; and R is an alkyl residue of an 8-22C fatty acid. |
