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:
Mar. 29, 2005
Filed:
Jul. 16, 2002
Collin W. Cross, Houston, TX (US);
Zen-yu Chang, Hockessin, DE (US);
S. Blake Pruett, Montgomery, TX (US);
Alan E. Goliaszewski, Woodlands, TX (US);
Collin W. Cross, Houston, TX (US);
Zen-Yu Chang, Hockessin, DE (US);
S. Blake Pruett, Montgomery, TX (US);
Alan E. Goliaszewski, Woodlands, TX (US);
Betzdearborn, Inc., Trevose, PA (US);
Abstract
The present invention relates to additives for enhancing the lubricity of hydrocarbon fuel oils, the inventive additive composition including one or more of the reaction products of (i) an alkylated polyamine and (ii) urea or isocyanate, or the salt adducts of these reaction products. More particularly, the present invention provides for a process for improving the lubricity of hydrocarbon fuel oils, which are low in inherent lubricity due to treatment to reduce sulfur and aromatic components for improved emissions.