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US 2006/0186371 A1Published application
Heat exchange fluid with coloring agent
OwnerRoy Perloveinventor
Life of this patent
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Abstract
A heat transfer fluid, such as an antifreeze composition, is colored with a dye which may be one or more of Acid Yellow 5 and Acid Yellow 3. The composition may further include other dyes.
Claims17
A heat transfer composition comprising:
- a polyhydric alcohol;
- and
- a first dye component comprising one or more of Acid Yellow 5 and Acid Yellow 3.
A method of preparing a heat transfer fluid, said method comprising the steps of:
- providing a polyhydric alcohol;
- providing a dye component, said dye component comprising one or more of Acid Yellow 5 and Acid Yellow 3;
- mixing said first dye component with said polyhydric alcohol;
- providing a corrosion inhibitor;
- and
- mixing said corrosion inhibitor with said polyhydric alcohol.
3 more elements
A heat transfer composition comprising:
- an alkylene glycol;
- a corrosion inhibitor;
- a first dye component comprising one or more of Acid Yellow 5 and Acid Yellow 3;
- optionally, a second dye component comprising a Red Xanthene dye;
- and
- optionally, water.
3 more elements
Dependencies are inferred from the claim text.