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. 02, 2018
Filed:
May. 12, 2017
Nch Corporation, Irving, TX (US);
J. Andrew Waynick, Lantana, TX (US);
NCH Corporation, Irving, TX (US);
Abstract
An overbased calcium magnesium sulfonate grease composition and method of manufacture comprising both overbased calcium sulfonate and overbased magnesium sulfonate in a ratio range of 60:40 to 100:1. The grease is made according to any known method for making an overbased calcium sulfonate grease by using the overbased magnesium sulfonate in addition to the overbased calcium sulfonate. A portion of the magnesium sulfonate may be added prior to conversion and another portion after conversion, with or without one or more delay periods between the addition of water or other reactive ingredient and the addition of magnesium sulfonate. The grease can be made using calcium hydroxyapatite and/or added calcium carbonate as calcium containing bases for reacting with complexing acids, a non-aqueous converting agent delay method, added alkali metal hydroxide, or any combination thereof. The grease has a high dropping point and reduced thickener yield.