Method of making articles of dissimilar polymer compositions
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United States of America Patent
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Oct 20, 1987
Grant Date -
N/A
app pub date -
Jun 5, 1985
filing date -
Jun 5, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Hybrid contact lenses and other composite polymeric articles of precise dimensions are made by placing a first monomer composition in a mold and irradiating and polymerizing a central portion only with ultraviolet radiation. Unpolymerized monomer is removed, a second monomer composition is placed in contact with the polymer formed from the first monomer composition and the latter is polymerized by ultraviolet irradiation or by other means to obtain a composite article which is then machined to form a hybrid lens.
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