Capsules or cover for container or bottle, has apron and head in shrinkable thermoplastic material that has mixture of two thermoplastic materials having specific glass transition temperature ranges

摘要

The capsule has an apron (12) and a head (11) in shrinkable thermoplastic material. The material has a mixture of two thermoplastic materials. One of the materials has a glass transition temperature equal to 40 degree Celsius. The other material has the glass transition temperature lower than 10 degree Celsius. The mixture has 50 percentage volume of former material and 10 to 50 percentage volume of latter material. An independent claim is also included for a method of manufacturing capsules or cover.