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:
Nov. 25, 1986
Filed:
Dec. 20, 1985
Applicant:
Inventors:
George H Beall, Big Flats, NY (US);
Robert C Doman, Painted Post, NY (US);
Linda R Pinckney, Corning, NY (US);
Assignee:
Corning Glass Works, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
501-3 ;
Abstract
A family of synthetic mica glass-ceramic compositions is disclosed based on a modified sodium fluoromontmorillonoid stoichiometry. These are spontaneously crystallizable glass-ceramics which are composed of 50-62% SiO.sub.2, 20-28% MgO, 5-15% Na.sub.2 O, and 8-13% F. The method comprises supplying excess fluoride during melting to devise a synthetic mica having sodium fluoromontmorillonoid or a solid solution on the talc axis as the dominant crystal phase.