| 摘要 |
<p>A dye composition has the formula: <CHEM> where R<1> and R<2> are the same or different and are selected from (A) C2-C12 alkyloxyalkyl, and (B) C9-12alkyl, (A) comprising from about 30 to 80 mole % of the R groups, (B) comprising 20 to about 70 mole % of the R groups. The dye composition is useful as a fluorescent tracer in refrigerant lubricants of the polyol ester types used in non-Freon refrigerants.</p> |
