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US006623827B2
(12) United States Patent (io) Patent No.: US 6,623,827 B2
Schottland et al. (45) Date of Patent: *Sep. 23,2003
(75) Inventors: Philippe Schottland, Evansville, IN
(US); Verghese Thomas, Evansville, IN
(US); Sharon S. Weis, Evansville, IN
(US); Steven R. Peak, Evansville, IN
(US)
(73) Assignee: General Electric Company,
Schenectady, NY (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 1 day.
This patent is subject to a terminal disclaimer.
(21) Appl. No.: 10/065,098
(22) Filed: Sep. 17, 2002
(65) Prior Publication Data
US 2003/0099806 Al May 29, 2003
Related U.S. Application Data
(63) Continuation of application No. 09/682,212, filed on Aug. 7, 2001, now Pat. No. 6,475,588.
(51) Int. CI. B32B 3/02
(52) U.S. CI 428/64.1; 428/64.4; 428/64.8;
430/270.11
(58) Field of Search 428/64.1, 64.4,
428/64.8, 913; 430/270.11, 495.1, 945;
369/283, 288
(56) References Cited
U.S. PATENT DOCUMENTS
(List continued on next page.)
OTHER PUBLICATIONS
Polymer Journal, Vol 22, No. 7, pp. 631-635 (1990).
U. S. patent application No. 09/683,346, filed on Dec. 17,
2001, "Colored Optical Discs and Methods for Making the
Same".
Primary Examiner—Elizabeth Mulvaney
(57) ABSTRACT
A colored optical disk and method for making the same are disclosed herein. In one embodiment, the optical disk comprises: a first fully reflective data layer, a first separating layer disposed on a top side of the first fully reflective data layer, a first semi-reflective data layer disposed on a side of the separating layer opposite the first fully reflective data layer, a first resin layer disposed on an upper side the first semi-reflective data layer opposite the separating layer, a second resin layer disposed on a bottom side of said first fully reflective data layer, wherein a reflectivity of the first fully reflective data layer and the first semi-reflective data layer is individually about 18 to about 30%, wherein a difference in the reflectivity between the first fully reflective data layer and the first semi-reflective data layer is less than or equal to about 5%; and wherein at least a portion of the optical disk comprises colorant.
