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:
Oct. 24, 1978
Filed:
Jul. 14, 1977
Kenneth A MacKenzie, Burlington, CA;
Abraham Verhoeff, Toronto, CA;
Shell Internationale Research Maatschap IIJ B.V., The Hague, NL;
Abstract
An improved method for preparing clay-based grease compositions is described whereby a clay containing pre-grease is prepared and a water phase separated from the clay-bearing pre-grease prior to the addition of an epoxide which is cured, e.g., simultaneously with the dehydration of the pre-grease. The grease compositions prepared in this manner show improved water resistance over those wherein the epoxide is added prior to separation of the water phase and the grease is also more responsive to the addition of conventional grease additives such as extreme pressure additives, anti-corrosion additives and anti-oxidants.