Patent No. U.S. 7,029,524 B2
Day-Glo Color Corp. has received a
patent for an aqueous aerosol spray
composition for marking a surface. It is
comprised of 0-50% by weight water; 5-
50% by weight of a solvent selected
from the group consisting of a C6 to C15
aliphatic solvent, an aromatic solvent
comprising 10 or fewer carbon atoms,
an ether, and an alcohol, or a combination
of the solvents; 0.1-4% by weight of
an emulsifier having a hydrophile to
lipophile balance of from 1.8-16.7,
wherein the emulsifier is a sorbitan
derivative; 0-3% surfactant; a marking
agent; 0-0.4% by weight of a corrosion
inhibitor; 0-10% by weight of an
antifreeze agent; 0-50% by weight of
an inorganic filler; and 10-45% by
weight of a propellant; wherein the
marking composition lacks or contains
only trace amounts of an alkydbased
drying oil, polyvinylpyrrrolidone,
polyvinyl alcohol or a combination
thereof; and wherein the mark
formed by the marking composition
is removable from the surface by rubbing
with a dry cloth, or washing
with water, or both.