Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-01-12
1995-02-21
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
623 6, 524506, 524862, 525100, 525903, 525937, 528 15, 528 31, A61F 216, C08L 8305, C08K 310
Patent
active
053915909
ABSTRACT:
New compositions useful as the optics of intraocular lenses, in particular injectable intraocular lenses, are disclosed. In one embodiment, such compositions comprise polymer mixtures derived from the polymerization, for example, cross-linking, of curable components in precursor mixtures. These precursor mixtures comprise curable component comprising: (A) an unsaturation functional (vinyl group-containing) polyorganosiloxane component, (B) an organosilicon component including silicon-bonded hydride groups which react with the unsaturation functional groups included in (A) during the polymerization, and (C) an effective amount of a platinum group metal-containing catalyst component; and a polymer component which is substantially non-functional. The viscosity of the polymer component is greater than the viscosity of the curable component.
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Christ F. Richard
Gerace John D.
Allergan Inc.
Merriam Andrew E. C.
Michl Paul R.
Peterson Gordon L.
Uxa, Jr. Frank J.
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