Cleaning and liquid contact with solids – Processes – Oils – grease – tar – or wax removal – by dissolving
Patent
1996-01-29
1998-02-24
Soderquist, Arlen
Cleaning and liquid contact with solids
Processes
Oils, grease, tar, or wax removal, by dissolving
134 4, 134 251, 134 34, 134 38, B08B 700, B08B 920
Patent
active
057208255
ABSTRACT:
This invention relates to a method for cleaning bituminous asphalt- and tar-coated equipment, using combinations of alkyl esters with terpene cosolvents and/or surfactants. The specific invention is the use of ester solvents in combination with terpene solvents, optionally with emulsifiers and other additives. The combination of the two is found surprisingly to exhibit the excellent solvency of terpene solvents, but with the slower evaporating rate and higher flashpoint properties of ester solvents.
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Chemtek, Incorporated
Soderquist Arlen
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