Synthetic closure

摘要

The invention relates to a closure for removable insertion into a container having an opening forming a neck and to a method of forming such a closure involving applying a surface coating layer to a closure blank the coating comprising a slip agent for providing lubrication during removal and insertion of the closure and an adhesion promoter selected from the group consisting of a compounds comprising at least four amine groups with at least two amine groups being selected from primary and secondary amine groups and b organo-functional coupling agents the adhesion promoter bonding the slip coating to the cylindrical surface of the closure blank.