PROCESS FOR THE PRODUCTION OF SHAPED OBJECTS OF ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENES

    公开(公告)号:US20240375325A1

    公开(公告)日:2024-11-14

    申请号:US18683192

    申请日:2022-07-11

    Abstract: A process for the production of a shaped object, including: (a) providing a mould including a cavity formed to produce an object of a desired shape; (b) heating the mould to a temperature of ≥145° C.; (c) supplying an ultra-high molecular weight polyethylene (UHMWPE) material into the mould; (d) closing the mould with a punch counterpart having such shape as to fit together with the mould cavity to form the shape of the desired object; (e) applying a compaction pressure through the punch to the material that is present in the mould, whilst maintaining the mould temperature, for such a compaction time that the material fuses to form the desired shape; (f) releasing the compaction pressure and removing the shaped object from the mould at a temperature of ≥145° C.; and (g) cooling the shaped object to a temperature of below the melting temperature of the UHMWPE material.

Patent Agency Ranking