Optical lenses prepared from crosslinkable acrylic compositions

Details Optical lenses prepared from crosslinkable acrylic compositions Optical lenses prepared from crosslinkable acrylic compositions

1981-04-13

1983-03-15

Lowe, James B.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

264 11, 264 14, 523106, 526301, 526321, C08F 2238

Patent

active

043768008

ABSTRACT:
An optical lens having an absorbance of less than about 0.1 for visible radiation of a wavelength in the range of from about 400 to about 600 nanometers is prepared from a crosslinkable acrylic composition. The composition consists essentially of an acrylic monomer and an acrylated urethane oligomer and exhibits a shrinkage upon curing of less than about 0.4%. The lens is prepared by introducing the crosslinkable composition into a lens-forming means and curing it until it is substantially crosslinked.

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patent: 4092173 (1978-05-01), Novak et al.
patent: 4166088 (1979-08-01), Neefe
patent: 4227980 (1980-10-01), Pregitzer et al.

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