Patent Number: 6,170,172

Title: Device and method for curing an adhesive between two layers of an information carrier

Abstract: A device and method cures an adhesive by means of UV radiation in an inert-gas atmosphere. The adhesive is interposed as an adhesive layer between two superposed layers of a disc-shaped optical information carrier. The device includes a UV source, a supply for an inert gas, and a holder for holding the information carrier in a centered position with respect to a centering axis. The inert-gas supply has discharge openings for inert gas, situated in a circular zone around the centering axis, at a distance from the centering axis which substantially corresponds to the radius of the peripheral edge of the information carrier, so that inert gas flows past the peripheral edge during curing. As a result locally present oxygen which would interfere with curing is expelled.

Inventors: Vromans; Petrus H. G. M. (Eindhoven, NL), Martis; Remberto L. T. (Eindhoven, NL), Brugel; Paulus W. J. (Eindhoven, NL)

Assignee: U.S. Philips Corporation

International Classification: B29C 65/00 (20060101); B29C 65/48 (20060101); B29C 65/52 (20060101); B29D 17/00 (20060101); G11B 23/00 (20060101); G11B 7/26 (20060101); B29C 35/08 (20060101); F26B 003/00 ()

Expiration Date: 01/09/2018