The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 1991
Filed:
Feb. 27, 1989
David P Gregg, Culver City, CA (US);
Kenneth L Keester, Pasadena, CA (US);
Del Mar Avionics, Irvine, CA (US);
Abstract
A process for manufacture of a second surface optically recordable disc having ultraviolet (UV) inhibiting characteristics is disclosed. A reflective lamina of aluminum, superimposed on a glass lamina substratum, is flow process produced by pyrolysis and precipitation of a lamina of aluminum from gasified triisobutyl aluminum onto a lamina web of silicate (amorphous glass) which is concomitantly pyrolized from tetraethoxy silane, with or without alkoxide additives, and precipitated upon a flowing body of molten tin to form a composite lamination sheet. To complete the process, an optically active lamina which is applied over the reflective lamina is embossed with optically transparent ultraviolet (UV) inhibiting polycarbonate, protective covers, the mating surface of which, may be, pregrooved and coded to form second surface optically active media. Covers with bonded lamination are then successively severed from the laminated sheet to yield independent second surface optically recordable media.