Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1985-02-19
1987-07-14
Lowe, James
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
264 14, 264 21, 264 26, 524284, 524555, 524556, 524577, 524773, 524776, 524804, 524808, 524827, 524832, 524836, 524916, B29D 1100
Patent
active
046803360
ABSTRACT:
A method for forming shaped hydrogel articles such as soft contact lenses wherein hydrophilic monomers are mixed with an inert diluent prior to polymerization, and the diluent is replaced with water following the polymerization. Diluents yielding optically clear hydrogels with good mechanical properties are selected on the basis of their viscosity and their Hanson cohesion parameters relative to the cohesion parameters of the polymeric component of the hydrogel.
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Kindt-Larsen Ture
Larsen Hans O.
Eberhardt Wayne R.
Lowe James
Vistakon, Inc.
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