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:
Oct. 23, 2007
Filed:
Nov. 03, 2006
William E. Horsfall, Corning, NY (US);
Ronald L. Stewart, Big Flats, NY (US);
William E. Horsfall, Corning, NY (US);
Ronald L. Stewart, Big Flats, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
The present invention relates to glass, glass-ceramic materials, lamp reflectors and processes for making them. The glass material has a composition, by weight of the total composition, comprising 56-67% SiO; 9-22% AlO; 3.4-3.8% LiO; 1.8-2.6% ZnO; 1.5-2.5% MgO; 3.3-5% TiO; 0-2.5% ZrO; 1.5-3% BO; 0-6% PO; 0-0.6% F; less than 500 ppm Fe; and components resulting from effective amount of at least one refining agent. The glass-ceramic material of the present invention contains β-spodumene solid solution as the predominant crystalline phase, and can be obtained by proper thermal treatment of the glass-ceramic material.