Patent · US Expired

Method for manufacturing glass frit

US4021253A · kind A · utility

32Cited by
1References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 5, 1974
Grant dateMay 3, 1977
Priority date
Expiry dateApr 5, 1994

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S376/916
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A method of manufacturing a glass frit for use in the manufacture of uniform glass microspheres to serve as containers for laser fusion fuel to be exposed to laser energy which includes the formation of a glass gel which is then dried, pulverized, and very accurately sized to particles in a range of, for example, 125 to 149 micrometers. The particles contain an occluded material such as urea which expands when heated. The sized particles are washed, dried, and subjected to heat to control the moisture content prior to being introduced into a system to form microspheres.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.