| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mirror surface decorative sheet having contamination resistance and chemical resistance, permitting selection of an extrusion lamination method with high production efficiency, and having high clarity and flexibility at the same time without concern over hydrolysis. <P>SOLUTION: A transparent olefin resin layer of the mirror surface decorative sheet contains a copolymer whose main raw material is propyrene and which is made of at least two kinds of olefins including ethylene and/or α olefin of 3-20C other than propylene. Shore hardness A of the copolymer is 65-90, the density is 860-875 kg/m<SP POS="POST">3</SP>, the glass transition temperature is -35 to -25°C, and the melting point is 130-170°C. The copolymer has a network-like crystal, and the lamella of the crystal has a folding structure of 100 nm or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
