| 摘要 |
<p>PURPOSE:To obtain a container with less absorption of biorelated substance, by forming the container or coating the surface of the container with an ethylene-vinyl alcohol copolymer of which ethylene ratio is in a specific range. CONSTITUTION:The ethylene-vinyl alcohol copolymer is a polymer which has both an ethylene structure and vinyl alcohol structure, and it is generally prepared by a saponification of an ethylene-vinyl acetate copolymer. This copolymer can be used for a die forming or extrusion. Also, it can be used as a coating material. For this reason, the container itself can be made of this copolymer. Also, a solution for which this copolymer is dissolved with a solvent, can be coated on the surface of a container which is made of some other material. This copolymer changes its material property depending on the structural ratio of both monomer components. For this reason, from the viewpoints of absorption property against biorelated substance and molding workability, a copolymer, of which ethylene ratio is in a range of 5-50 mol%, is applicable.</p> |
