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. 28, 2014
Filed:
Nov. 16, 2009
Barbara Haviland Minor, Elkton, MD (US);
Thomas J. Leck, Hockessin, DE (US);
Donald Bernard Bivens, Kennett Square, PA (US);
Akimichi Yokozeki, Wilmington, DE (US);
Barbara Haviland Minor, Elkton, MD (US);
Thomas J. Leck, Hockessin, DE (US);
Donald Bernard Bivens, Kennett Square, PA (US);
Akimichi Yokozeki, Wilmington, DE (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises 2,3,3,3-tetrafluoropropene (HFC-1234yf) and at least one hydrocarbon. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, and aerosol propellants.