Patents Assigned to Akerna Inc.
  • BLOCK COPOLYMER OIL RETURN AGENTS
    Publication number: 20110006248
    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.
    Type: Application
    Filed: February 18, 2009
    Publication date: January 13, 2011
    Applicant: Akerna Inc.
    Inventors: Brett L. Van Horn, Christopher A. Bertelo, Scott C. Schmidt, Noah E. Macy, George J. Papakonstantopoulos