A heat-shrinkable shaped article of a vinyl chloride-based resin and a method for the preparation thereof.

摘要

The heat-shrinkable shaped article, e.g. films and tubes, having rigidity is prepared of a molding compound of a copolymeric polyvinyl chloride resin containing 1-30 % by weight of vinyl acetate instead of a homopolymeric polyvinyl chloride resin, optionally, plasticized with 10 % by weight or less of a plasticizer. The drawing work of the shaped article is performed at a temperature higher by 10 to 70 DEG C than the Clash-Berg heat-distortion temperature of the shaped article, The heat-shrinkable shaped article has excellent clarity and exhibits excellent behavior of shrinking by heating.