Process for forming a coated layer on a toric surface of an...

Details Process for forming a coated layer on a toric surface of an... Process for forming a coated layer on a toric surface of an...

2005-06-02

2009-12-15

Vargot, Mathieu D. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

C264S002500, C427S162000

Reexamination Certificate

active

07632432

ABSTRACT:
The invention concerns a process for forming at least one coating layer on a toric surface of an optical article which comprises: providing an optical article1having a toric surface comprising a first principal meridian with a lower radius of curvature r and a second principal meridian with a higher radius of curvature R (r<R) and a periphery2; depositing on the toric surface at least two drops2a, 2bof the liquid curable composition, each within one of two opposite sectors S1, S2centered on the first principal meridian of lower radius of curvature r and having an apex angle up to 40°; applying pressure on said pre-measured amount of liquid curable composition to cause said liquid curable composition to spread over the toric surface of the optical article; curing the liquid curable composition; and recovering an optical article coated with at least one coating layer.

REFERENCES:
patent: 4680998 (1987-07-01), Council, Jr.
patent: 6562466 (2003-05-01), Jiang et al.
patent: 2003/0017340 (2003-01-01), Jiang et al.
patent: 2005/0140033 (2005-06-01), Jiang et al.
U.S. Appl. No. 10/417,525, filed Apr. 17, 2003, Weber.
Office Action issued in U.S. Appl. No. 10/861,580, mailed Mar. 11, 2008.

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