B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 11/00 (2006.01) B29C 31/04 (2006.01) B29C 33/06 (2006.01) B29C 35/08 (2006.01) B29C 37/00 (2006.01) B29C 39/24 (2006.01) B29C 39/36 (2006.01) B29C 39/42 (2006.01) C08F 8/30 (2006.01) C08F 216/06 (2006.01) G02B 1/04 (2006.01) B29C 33/30 (2006.01)
Patent
CA 2128915
A process and device for the manufacture of mouldings and mouldings manufacturedin accordance with that process Abstract In a process for the manufacture of mouldings, especially optical lenses, specifically contact lenses (CL), a starting material that is crosslinkable by the impingement of suitable energy is introduced into a mould (1) having a cavity (15), which mould is at least partially permeable to the energy concerned. The starting material is introduced into the cavity in a still at least partially uncrosslinked state, the mould cavity determining the shape of the moulding (CL) to produced. By means of impingement of the energy concerned, the starting material is crosslinked to an extent sufficient for it to be possible for the moulding (CL) to be released from the mould. The filling of the mould cavity is carried out in the starting material that is still at least partially in the uncrosslinked state. (Figs. 1A-C)
Borghorst Sharla
Golby John
Hagmann Peter
Herbrechtsmeier Peter
Kretzschmar Otto
Fetherstonhaugh & Co.
Novartis Ag
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