Fluorescent tracer dyes

Details Fluorescent tracer dyes Fluorescent tracer dyes

C - Chemistry, Metallurgy

09

B

C09B 57/08 (2006.01) C09B 67/22 (2006.01) C09K 5/10 (2006.01) C09K 5/20 (2006.01) C10M 133/40 (2006.01) C10M 171/00 (2006.01)

Patent

CA 2299080

A dye composition has the formula: (see formula I) where R1 and R2 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.

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