POLYPROPYLENE SHEET EXCELLENT IN SHAPE PROPERTIES

摘要

PROBLEM TO BE SOLVED: To provide a laminated sheet excellent in the shape imparting properties and dimensional stability of a molded product molded by thermal molding such as vacuum molding and also excellent in the surface properties of the molded product. SOLUTION: This polypropylene sheet is formed by laminating usual polypropylene (Y) and the following specific polypropylene compsn. (X) within a constant ratio range in the constitution of Y/X/Y. The specific polypropylene compsn. (X) consists of 0.01-5 pts.wt. of the following olefin (co)polymer (a) and 100 pts.wt. of the following polypropylene (b). The olefin (co)polymer has intrinsic viscosity [ηE] measured in tetralin at 135 deg.C of 15-100 dl/g. Polypropylene (b) is composed of a propylene homopolymer or a propylene/olefin copolymer containing 50 wt.% or more of a propylene polymer unit and the intrinsic viscosity [ηP] measured in tetralin at 135 deg.C is 0.2-10 dl/g.