Optical: systems and elements – Lens
Reexamination Certificate
2008-12-31
2010-12-07
Boykin, Terressa M (Department: 1796)
Optical: systems and elements
Lens
C359S107000, C428S411100, C428S412000, C502S150000, C528S176000, C528S190000, C528S193000, C528S194000, C528S271000, C528S272000
Reexamination Certificate
active
07848025
ABSTRACT:
Disclosed herein is a camera lens comprising a thermoplastic composition comprising a poly(aliphatic ester)-polycarbonate copolymer comprising soft block ester units derived from an alpha, omega C6-20aliphatic dicarboxylic acid or derivative thereof, a dihydroxyaromatic compound, and a carbonate source, wherein the thermoplastic composition has a melt volume rate of 13 to 25 cc/10 min at 250° C. and under a load of 1.2 Kg and a dwell time of 6 minutes, according to ASTM D1238-04, and wherein the camera lens has an effective lens area of 0.5 to 100 mm2. A method of making the camera lens, and a camera lens comprising a thermoplastic composition comprising a redistribution product of a poly(aliphatic ester)-polycarbonate, are also disclosed.
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ASTM D 1238-04, Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer, published Dec. 1, 2004, 14 pages.
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Hatano Akira
Hoeks Theodorus Lambertus
Karlik Dennis
Kuriki Ken
Malinoski Jon M.
Boykin Terressa M
Cantor & Colburn LLP
Sabic Innovative Plastics IP B.V.
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