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:
Aug. 11, 1992
Filed:
Jan. 31, 1991
Steven C Machuga, Schaumburg, IL (US);
Robert W Pennisi, Boca Raton, FL (US);
Stephanie Schauer, Rolling Meadows, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An improved encapsulant for an electronic component package is composed of an inorganic powder dispersed in a polycyanurate resin binder. The encapsulant is formed by applying a curing mixture of the powder and a liquid vehicle composed predominantly of a blend of one or more multifunctional cyanate ester compounds that are curable to form the binder. The blend includes a cyanate ester substituted bisphenol derivative compound having the formula ##STR1## wherein R.sub.1 and R.sub.2 are members of the group consisting of hydrogen, methyl and ethyl. Preferably, the blend includes a second cyantophenylene compound having the formula ##STR2## wherein R.sub.3 is a hydrocarbon chain including an aryl link.