| 摘要 |
A closure structure (1) for closing containers, particularly wine bottles, comprises a substantially elongate cork body (2), a synthetic insert (3) attached on at least one end face (4) of the body (2) that is designed to be turned toward the inside of the s container to separate the cork body from the liquid contained therein. The synthetic insert (3) is an element made of an elastomeríc thermoplastic resin, which is thermoformed and co-molded directly on the body (2), with no intermediate layer being provided therebetween. The elastomeric thermoplastic resin is selected from the group comprising polyurethane, polyethylene, silicone, rubber, caoutchouc, polybutadiene or polypropylene materials. A particular elastomeric thermoplastic resin is a polyurethane having a Shore A hardness, according to ASTM D2240, of 60 to 80isand preferably of 65 to 75 and density, according to ASTM D792, of 0.80 to1.2kg/dm3. |
