Patent ID: 9580565
Date: 2017-02-28
CPC Classifications: C08G,C08J,C08L

Claim:
1. A semi-aromatic polyamide film comprising: 98 to 90% by mass of a semi-aromatic polyamide (A) including units of a dicarboxylic acid component that is 60 to 100 mol % of terephthalic acid and units of a diamine component that is 60 to 100 mol % of an aliphatic diamine having 9 carbon atoms; 2 to 10% by mass of a thermoplastic elastomer (B) having functional groups, and the total amount of (A) and (B) is 100% by mass, wherein the thermoplastic elastomer (B) having functional groups is an ethylene-α-olefin copolymer based thermoplastic elastomer modified with a dicarboxylic acid and/or a derivative of the dicarboxylic acid, the thermoplastic elastomer (B) is distributed in the film in a state in which an average minor axis of domains of the thermoplastic elastomer B is 0.01 to 1.0 μm and an average domain spacing of the thermoplastic elastomer (B) in a cross section in a lengthwise direction of the film is 0.1 to 1.5 μm, and the semi-aromatic polyamide film is stretched.