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:
Dec. 24, 1985
Filed:
Aug. 24, 1984
Shigeyuki Sato, Toyota, JP;
Mitsumasa Matsushita, Nagoya, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JP;
Abstract
Epoxy resin compositions including an epoxy resin, a hardener and an additive for forming a rust preventing film are provided. The additive is at least one selected from dithiophosphoric acids, dithiophosphoric acid derivatives, metal salts of dithiocarbamic acids and oxidized waxes. The composition may also include a secondary additive such as an organosilicon compound, an organoaluminum compound or an organotitanium compound for dithiophosphoric acid and/or dithiophosphoric acid derivative; an alkylarylsilsesquioxane silicone compound for a metal salt of dithiocarbamic acid; an alkylarylsilsesquioxane silicone compound, an organoaluminum compound, an organotitanium compound or an organotin compound for an oxidized wax. These epoxy resin compositions, when used as encapsulating materials, prevent moisture and impurities from penetrating into the surface of an encapsulated product because of the rust preventing film existing between the composition and the encapsulated product.