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:
Jan. 07, 2014
Filed:
Feb. 18, 2009
Brett L. Van Horn, King of Prussia, PA (US);
Christopher A. Bertelo, Doylestown, PA (US);
Scott C. Schmidt, West Chester, PA (US);
Noah E. Macy, Royersford, PA (US);
George J. Papakonstantopoulos, King of Prussia, PA (US);
Brett L. Van Horn, King of Prussia, PA (US);
Christopher A. Bertelo, Doylestown, PA (US);
Scott C. Schmidt, West Chester, PA (US);
Noah E. Macy, Royersford, PA (US);
George J. Papakonstantopoulos, King of Prussia, PA (US);
Arkema Inc., King of Prussia, PA (US);
Abstract
The present invention relates to fluorine free polymeric oil-return agents that increase the miscibility of lubricants such as mineral oils and/or oxygenated lubricants with refrigerants in order to improve oil return and system performance of refrigeration systems. It was discovered that fluorine free block copolymers having a block compatible with the oil phase, and at least one block compatible with the refrigerant phase can effectively compatibilize lubricating oils with HFC and HFO refrigerants.