| 摘要 |
<p>To enable compressible surface coatings (20) to be applied to injection moulded articles during the moulding stage the coating is placed and retained in the mould space, to occupy a defined area of the surface of the mould space. Molten plastics is introduced into the mould space (13) at a relatively low pressure and gas injection is used to pressurize the plastics. Various ways of retaining the coating in position in the mould are described.</p> |
