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:
Sep. 01, 1981
Filed:
Jan. 14, 1980
Robert K Rosler, Toledo, OH (US);
Donald B Gore, Swanton, OH (US);
Malcolm N Riddell, Perrysburg, OH (US);
Earl R Hunt, Toledo, OH (US);
Plaskon Products, Inc., Toledo, OH (US);
Abstract
A flash resistant epoxy encapsulating composition and its process of manufacture. The composition comprises a blend of from about 15 to about 80 weight percent epoxy resin, from about 9 to about 82 weight percent filler, from about 0.01 to about 2 percent catalyst by weight of resin, from about 10 to about 50 percent hardener by weight of resin, from about 3 to about 12 percent flash retardant by combined weight of resin and hardener and up to about 1.5 weight percent lubricant. The cured blend physically consists essentially of particles intimately and entirely embedded in a matrix. The process comprises blending the components of the above blend followed by milling the resulting blend between the rolls of a differential roll mill equipped with plows where the rolls have different surface temperatures, the hotter of the rolls being near the melting temperature of the resin.