Method of tagging and subsequently indentifying refrigerant lubr

Details Method of tagging and subsequently indentifying refrigerant lubr Method of tagging and subsequently indentifying refrigerant lubr

1995-06-30

1996-10-01

Willis, Jr., Prince

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

With lubricants, or warning, stabilizing or anti-corrosion...

252964, G01N 2164

Patent

active

055608558

ABSTRACT:
A polyol ester or poly-alkylene glycol lubricant is tagged by adding to the lubricant a chemical marker which is stable over the temperature cycling range of a refrigerant.
In testing for the presence of the marker, a sample of a lubricant is obtained, and the sample is diluted in a sufficient volume of an organic solvent such that subsequent admixture with an aqueous solution will not result in emulsification. The diluted sample is extracted with an aqueous solution appropriate for the marker. Simultaneous with or subsequent to extraction, a chromophoric reaction of the marker is induced, whereby a readily identifiable color is observable.

REFERENCES:
patent: 4209302 (1980-06-01), Orelup
patent: 4758366 (1988-07-01), Parekh
patent: 4904765 (1990-02-01), Derber
patent: 5149453 (1992-09-01), Parekh
patent: 5156653 (1992-10-01), Friswell et al.
patent: 5205840 (1993-04-01), Friswell et al.
patent: 5252106 (1993-10-01), Hallisy

Affiliated with

Also associated with

Rating

Method of tagging and subsequently indentifying refrigerant lubr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of tagging and subsequently indentifying refrigerant lubr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of tagging and subsequently indentifying refrigerant lubr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1500253