Solvent

Details Solvent Solvent

2011-08-30

2011-08-30

Choi, Ling-Siu (Department: 1761)

Compositions

Solvents

C252S069000, C510S108000, C510S201000, C510S215000, C510S342000

Reexamination Certificate

active

08007687

ABSTRACT:
An organic solvent which is very useful in paints is made up primarily of n-butyl acetate, n-heptane, methyl ethyl ketone, methyl isobutyl ketone, acetone and a light hydrotreated petroleum distillate. The solvent typically has a closed cup flash point of about 50 to 75° F. The petroleum distillate typically has a boiling range from 230 to 320° F., a closed cup flash point from 35 to 75° F. and a kauri-butanol value not less than 25. A mixture of 8-carbon and 9-carbon hydrocarbons which are typically primarily paraffins or cycloparaffins typically makes up the vast majority of the petroleum distillate.

REFERENCES:
patent: 2002/0010117 (2002-01-01), McDonald
patent: 2007-031493 (2007-02-01), None
Apr. 8, 2009 letter from attorney of record concerning admitted prior art based on public use (“Boville Solvent No. 1”).

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