Patent · US Expired

Encapsulant composition

US5137851A · kind A · utility

2Cited by

5References

5Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Jacob Hormadaly · Wilmington, US
Barry Edward Taylor · Youngstown, US

Key dates

Filing date	Jun 11, 1991
Grant date	Aug 11, 1992
Priority date	—
Expiry date	Jun 11, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C10/0054
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A crystallizable glass composition comprising PbO and/or Bi.sub.2 O.sub.3, ZnO, B.sub.2 O.sub.3, Cr.sub.2 O.sub.3, SnO.sub.2 and optionally SiO.sub.2 and/or Al.sub.2 O.sub.3, having an optical density parameter .gtoreq.1.6.

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