Title:
樹脂組成物及び熱収縮性フィルム
Document Type and Number:
Japanese Patent JP5627496
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a heat shrinkable film excellent in transparency, heat shrinkability, natural contractility, low temperature elongation and solvent resistance, having preferable balance of physical properties, and recyclability.SOLUTION: This resin composition comprises a hydrogenated block copolymer (I) satisfying the following (1) to (6) and a polypropylene-based resin (II), in the weight ratio (I)/(II) of 75/25 to 60/40, and has specific gravity of 0.97 or less; (1) the content of a vinyl aromatic hydrocarbon is 60-80 mass%, the content of a conjugated diene is 40-20 mass%; (2) a block copolymer (A) mainly comprising the conjugated diene is contained; (3) the vinyl-bonding amount before hydrogenation is 75 mass% or more; (4) a random copolymer block (B) of the vinyl aromatic hydrocarbon and the conjugated diene is contained; (5) the content of the vinyl aromatic hydrocarbon in the random copolymer block (B) is 85-98 mass%; and (6) the rate of hydrogenation of the hydrogenated block copolymer (I) is 60% or more.
Inventors:
森藤 一夫
星 進
星 進
Application Number:
JP2011026144A
Publication Date:
November 19, 2014
Filing Date:
February 09, 2011
Export Citation:
Assignee:
旭化成ケミカルズ株式会社
International Classes:
C08L53/02; B32B27/30; C08J5/18; C08K5/00
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Kazuhiko Naito
Toshifumi Onuki
Kazuhiko Naito