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US 5,288,160 AGranted
Aqueous permanent coloring composition
AssigneeBinney & Smith Inc.
InventorsJie Li, Christine R. Mott
Life of this patent
Estimating the term…
Abstract
An aqueous permanent coloring composition includes a pigment, an alkali soluble acrylic resin, a suspending agent, and a volatile pH regulant. The composition optionally includes a drying agent, an adhesion promoter, a color developer and/or a preservative. The composition is useful as a permanent ink or paint and has good fugitivity from skin.
Claims36
An aqueous permanent coloring composition comprising:
- (a) from about 0.1% to about 30% by weight of a pigment;
- (b) from about 0.1% to about 30% by weight of an alkali soluble acrylic resin;
- (c) from about 0.05% to about 7% of a suspending agent, wherein said suspending agent is formed by a molecule having a first end and a second end and having an embedded hydrophilic segment and a hydrophobic segment attached at each of said first end and said second end;
- and
- (d) a volatile pH regulant,
- said composition having a pH from about 8 to about 10, and said composition having a viscosity of about six centipoise or less.
3 more elements
An aqueous permanent coloring composition comprising:
- (a) from about 2% to about 10% by weight of a pigment having a mean particle size range from about 0.05 to about 0.5 microns;
- (b) from about 2% to about 10% by weight of an alkali soluble acrylic resin;
- (c) from about 0.1% to about 3% of a suspending agent, said suspending agent being formed by a molecule having a first end and a second end and having an embedded hydrophilic segment and a hydrophobic segment attached at each of said first end and said second end;
- and
- (d) a volatile pH regulant,
- said composition having a pH from about 8 to about 10.
3 more elements
An aqueous permanent coloring composition comprising:
- (a) from about 6% to about 8% by weight of a pigment having a mean particle size range from about 0.05 to about 0.5 microns;
- (b) from about 4% to about 8% b weight of an alkali soluble acrylic resin;
- (c) from about 0.1% to about 1% of a suspending agent, said suspending agent being formed by a molecule having a first end and a second end and having an embedded hydrophilic segment and a hydrophobic segment attached at each of said first end and said second end;
- (d) from about 2% to about 5% of an adhesion promoter;
- (e) optionally from about 0.05% to about 2% of a color developer;
- (f) from about 8% to about 10% of a drying agent;
- and
- (g) a volatile pH regulant,
- said composition having a pH of from about 8 to about 10, and said composition having a viscosity of about six centipoise or less.
6 more elements
A method of preparing an aqueous permanent ink composition comprising the steps of:
- (a) forming a first premix by admixing an alkali soluble acrylic resin dispersion with water and adding an amount of a pH regulant sufficient to adjust the pH of the resulting admixture within the range of from about 8 to about 10,
- (b) forming a second premix by admixing an aqueous pigment dispersion having a mean particle size range of from about 0.05 to about 2 microns with water;
- (c) admixing said first premix and said second premix forming a first admixture;
- (d) admixing a suspending agent in said first admixture of said first premix and said second premix forming a second admixture;
- (e) admixing water to said second admixture to form said composition.
2 more elements
A marking instrument containing an aqueous coloring composition, said composition comprising:
- (a) from about 0.1% to about 30% by weight of a pigment having a mean particle size range from about 0.05 to about 2.0 microns;
- (b) from about 0.1% to about 30% by weight of an alkali soluble acrylic resin;
- (c) from about 0.05% to about 7% of a suspending agent, wherein said suspending agent is formed by a molecule having a first end and a second end and having an embedded hydrophilic segment and a hydrophobic segment attached at each of said first end and said second end;
- and
- (d) a volatile pH regulant,
- said composition having a pH from about 8 to about 10, and said composition having a viscosity of about six centipoise or less.
3 more elements
An aqueous permanent coloring composition comprising:
- (a) from about 0.1% to about 30% by weight of a pigment;
- (b) from about 0.1% to about 30% by weight of an alkali soluble acrylic resin;
- (c) from about 0.05% to about 7% of hydrophobically modified polyurethane;
- and
- (d) a volatile pH regulant,
- said composition having a Ph from about 8 to about 10, and said composition having a viscosity of about six centipoise or less.
3 more elements
Dependencies are inferred from the claim text.