Patents Assigned to Morton Internatioanl Inc.
  • Fluorescent tracer dyes
    Patent number: 6150306
    Abstract: A dye composition has the formula: ##STR1## where R.sup.1 and R.sup.2 are the same or different and are selected from (A) C.sub.2 -C.sub.12 alkyloxyalkyl, and (B) C.sub.9-12 alkyl, (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.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: November 21, 2000
    Assignee: Morton Internatioanl Inc.
    Inventor: Michael R. Friswell