B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 11/00 (2006.01) B29C 39/02 (2006.01) B29C 69/00 (2006.01)
Patent
CA 2144165
This invention relates to a method of manufacturing a contact lens which has a first section formed from a first material and a second section formed from a second material. The method includes the use of a casting mould (1) which has an end wall (3) that is inwardly displaced into the space defined within the mould to define a receptive well (S, T) into which material can be cast to be cured/polymerised to form a lens button (B). The method further includes: casting a first monomer material into the receptive well of the casting mould and polymerising/curing the monomer material ; and machining the article formed by the above casting into a contact lens (CL) wherein the first monomer material includes a polymerisable material which has a penetrating-like action with respect to the material from which the casting mould is formed that acts to bond the mould and the cured/ polymerised material together.
Gandhi Khushroo
Thakrar Ashok R.
Fetherstonhaugh & Co.
Novartis Ag
Pilkington Visioncare Inc.
LandOfFree
A method of manufacturing a contact lens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with A method of manufacturing a contact lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A method of manufacturing a contact lens will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1386996