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:
Nov. 01, 2011
Filed:
Dec. 17, 2008
Ajit Ramchandra Pradhan, Walnut Creek, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Nancy J. Bertrand, Lafayette, CA (US);
David C. Kramer, San Anselmo, CA (US);
Allan G. Hee, Albany, CA (US);
Max I. Chang, Singapore, SG;
Ajit Ramchandra Pradhan, Walnut Creek, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Nancy J. Bertrand, Lafayette, CA (US);
David C. Kramer, San Anselmo, CA (US);
Allan G. Hee, Albany, CA (US);
Max I. Chang, Singapore, SG;
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A method for predicting properties of lubricant base oil blends, comprising the steps of generating an NMR spectrum, HPLC-UV spectrum, and FIMS spectrum of a sample of a blend of at least two lubricant base oils and determining at least one composite structural molecular parameter of the sample from said spectrums. SIMDIST and HPO analyses of the sample are then generated in order to determine a composite boiling point distribution and molecular weight of the sample from such analysis. A composite structural molecular parameter is applied, and the composite boiling point distribution and the composite molecular weight to a trained neural network is trained to correlate with the composite structural molecular parameter composite boiling point distribution and the composite molecular weight so as to predict composite properties of the sample. The properties comprise Kinematic Viscosity at 40 C, Kinematic Viscosity at 100 C, Viscosity Index, Cloud Point, and Oxidation Performance.