The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
申请公布号
US8426657(B2)
申请公布日期
2013.04.23
申请号
US201113241540
申请日期
2011.09.23
申请人
LECK THOMAS J.;SATURNO THOMAS FRANK;BELL GREGORY A.;E I DU PONT DE NEMOURS AND COMPANY
发明人
LECK THOMAS J.;SATURNO THOMAS FRANK;BELL GREGORY A.