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:
Jan. 07, 1992
Filed:
Jul. 31, 1990
Applicant:
Inventor:
Paul C Donohue, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
501 15 ; 264 63 ; 361320 ; 361321 ; 428403 ; 428426 ; 501 17 ; 501 20 ; 501 61 ; 501 76 ; 523210 ; 523214 ; 524317 ; 524381 ; 524383 ; 524405 ; 524432 ; 524434 ; 524560 ;
Abstract
An encapsulant composition comprising a lead zinc silicoborate glass which forms a crystalline phase of Zn.sub.2 SiO.sub.4 and ZnB.sub.2 O.sub.4 when it is fired at 650.degree.-800.degree. C.