| 摘要 |
A moulded plastic closure cap (1) having sealing fins (7) to engage the rim of a container (6) has its seal improved by a coating (10) of a material softer than the material of the closure cap. Preferred materials for the coating include plastisol resins such as polyvinyl chloride homopolymers and copolymers of vinyl chloride, particularly vinyl acetate- vinyl chloride copolymers. <IMAGE> |
