Class 106/31.23 - Erasable composition

Subclass of Class 106 - Compositions: coating or plastic
Definition: Compositions which have the ability to be removed (erased).
No. of patents: 32
Last issue date: 10/27/2009

Number	Title	Issue Date
7608139	Erasable image forming material An erasable image forming material is provided, which includes a binder resin, and a color former and a developer dispersed in the binder resin. The color former is amorphous. ...	10/27/2009
7276465	Erasable image forming material An erasable image forming material includes a color former, a developer, and a binder resin, the color former containing Crystal Violet Lactone and a specific fluorane compound can enhance light fastness as well as heat decolorizing performance. ...	10/02/2007
7163575	Water-based, resin-free and solvent-free eradicable ball-pen inks Improved combination eradicable ball-pen and re-write inks are disclosed. The combination eradicable and re-write ball-pen inks disclosed include water, glycerol, one or more acids and an eradicable dye. Glycerol is present in an amount greater than the water conten...	01/16/2007
7083665	Highlightable marking composition, method of highlighting the same, highlightable marking composition kit, and highlighted marking composition complex A highlightable ink including a colored pigment and an eradicable colorant; a kit including the highlightable ink and an eradicator solution; an ink complex including a colorless or substantially colorless eradicable dye selected from the group consisting of diarylm...	08/01/2006
6908505	Thermochromic compositions of color formers and lewis acids Thermochromic compositions that include combinations of at least one color former and at least one Lewis acid in a polymer mixture are disclosed. The thermochromic compositions reversibly change appearance from substantially transparent to substantially non-transpar...	06/21/2005
6905539	Black eradicable ink, methods of eradication of the same, eradicable ink kit, and eradicated ink complex A shear-thinning eradicable ink including water, a dye selected from the group consisting of diarylmethane derivatives, triarylmethane derivatives, methine dyes, and a solvent, wherein the ink has a shear-thinning index in the range of about 0.35 to about 1.0; a kit...	06/14/2005
6331579	Aqueous correction fluids Correction fluids are provided which include a cationic stain blocking agent, an opacifying pigment and water. Preferred opacifying pigments include an alumina treated titanium dioxide and a clay. The new correction fluids have improved bleed resistance a...	12/18/2001
6326332	Decolorable material and method for decoloring the same A decolorable material contains a color former, a developer, a matrix material, and a decolorant capable of physically or chemically adsorbing the developer, the developer having a molecular weight of 120 to 210. The material is capable of forming a clear...	12/04/2001
6248692	Erasable image forming material An erasable image forming material includes a color former, a developer, and a decolorizer and is erasable by contact with an erase solvent. Free energy ଱ required for the decolorizer and the developer to form a complex and free energy ଲ requi...	06/19/2001
6203603	Erasable image forming material An erasable image forming material includes a color former, a developer, a binder resin, and a polymer decolorizer having an electron donating group capable of physically or chemically adsorbing the developer. This polymer decolorizer is, e.g., a polymer ...	03/20/2001
6090192	Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same A reversible thermosensitive composition including a coloring agent and a developer and capable of assuming a colored state and a discolored state depending upon the thermal hysteresis thereof. The developer is a phenol compound represented by the formula...	07/18/2000
6063173	Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same A reversible thermosensitive coloring composition is provided, which contains (a) an electron-donating coloring compound; and (b) an electron-accepting compound, which is an aromatic carboxylic acid compound comprising at least one hydrocarbon group, whic...	05/16/2000
6008156	Heat sensitive color developing material and heat sensitive element using the same A thermal-sensitive color developing material containing metal particles and a matrix substance where the size of the metal particles irreversibly increase at room temperature due to cohesion, and a thermal-sensitive element using the thermal-sensitive co...	12/28/1999
6001159	Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same A reversible thermosensitive coloring composition contains an electron-donating coloring compound and an electron-accepting compound, and is capable of reversibly assuming a color-developed state or a decolorized state depending upon the the temperature o...	12/14/1999
5972837	Reversible thermal-recording composite and rewritable reversible thermal-recording sheet and card using the same A reversible thermal-recording composite capable of exerting great performance for repeated use and yielding good printing quality at higher coloring concentrations is provided, wherein the coloring and fading reaction of a leuco dye with a coloring and f...	10/26/1999
5925693	Aqueous correction fluids Correction fluids are provided which include a cationic stain blocking agent, an opacifying pigment and water. Preferred opacifying pigments include an alumina treated titanium dioxide and a clay. The new correction fluids have improved bleed resistance a...	07/20/1999
5922115	Decolorizable ink and printer Decolorizable ink consisting of an ink composition dispersed in a solvent, the ink composition comprising a color former, a developer and a decolorizer, wherein the color former and developer are in a colored state by interaction between them and the deco...	07/13/1999
5919404	Reversible thermochromic compositions A reversible thermochromic composition comprising as essential components (a) an electron-donating color-developing organic compound, (b) at least one electron-accepting compound selected from alkoxyphenol compounds represented by Formula I: ##STR1##...	07/06/1999
5916357	Eradicable inks An eradicable ink contains an essentially non-aqueous solvent and a colorant, dissolved in the solvent, that changes color if contacted with a sulfite or an amine. Moreover, a water soluble colorant containing a counterion hydrophilic can be converted int...	06/29/1999
5900445	Erasable ink composition containing a polymer dye obtained from ethylenic monomers and marking instrument containing same An erasable ink composition contains a water-insoluble polymeric dye obtained by copolymerizing ethylenically unsaturated monomers at least one of which possesses a dye moiety covalently bonded thereto. The ink is intended for use in any of a variety of m...	05/04/1999
5880176	Fluorescent marking composition and fluorescent mark formed by said composition A fluorescent marking composition containing particles of an organic material which has a glass transition temperature of at least 30° C. and an average particle size of at least 30 nm, and emitting fluorescence in a visible light range, or absorbing inf...	03/09/1999
5868821	Thermally reversible color forming composition and thermally reversible recording medium using the thermally reversible color forming composition A thermally reversible color forming composition which includes an electron-donating chromophoric compound and an electron-accepting compound, by which formation and deletion of a color image may be carried out by adjusting thermal energy applied to the c...	02/09/1999
5756561	Erasable ink composition containing a graft-polymerized dye An erasable ink composition contains a water-insoluble polymeric dye obtained by the graft polymerization of a preformed water-insoluble polymer with a dye monomer possessing at least one ethylenically unsaturated site. The ink is intended for use in any ...	05/26/1998
5738910	Printing process for enabling repeated use of printing paper A printing process for enabling repeated use of printing paper by printing with ink of diluted iodine tincture solution on the printing paper with starch component exposed on the surface, or by printing letters with paste contained iodine starch and apply...	04/14/1998
5403810	Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same A reversible thermosensitive coloring composition containing a coloring agent, a color developer and a guanidine derivative, the coloring composition capable of assuming a color development state when heated at a predetermined color development temperatur...	04/04/1995
5290346	Ink for printer An ink for an ink jet printer capable of decoloring a recorded image or changing a color of the recorded image to thereby save resources, improve economy, and improve functionality. As a coloring composition of the ink, an organoboron salt of cyanine dye ...	03/01/1994
4720301	Reversible heat sensitive recording composition A new reversible heat sensitive recording composition for erasable recording is disclosed which is used as a recording or marking material that is capable of erasure at a specific temperature so that coloring or decoloring can be controlled to occur at de...	01/19/1988
4557618	Ink and eraser of the ink Colored ink comprising a developer having a phenolic hydroxyl group, an electron-donating colorless dye which develops a color by the action of the developer, and a solvent which does not inhibit a color developing reaction. Handwriting written in this co...	12/10/1985
4441928	Ink composition An ink composition containing an indicator of phthalein series colored by the conjoint use of an inorganic weakly basic substance and an organic amine. This ink composition shows a clear tint and possesses good stability so that it is free of fading on st...	04/10/1984
4252845	Graphic arts ink and eradicator combination An ink and eradicator system for use in the graphic arts comprising an ink containing a dye which is reducible to a colorless form in combination with a volatile acid and a non-volatile organic acid, dissolved to an aqueous solvent; and an ink eradicator ...	02/24/1981
4227930	Ball point pen, ink, and its eradicator system Disclosed is a ball point ink pen, its ink and its eradicator. The ink is carried at one end of the pen and the eradicator portion is carried at the other. If an error is made, the pen can be reversed and the eradicator used to neutralize the ink. The ink...	10/14/1980
4030934	Coloring composition for line- or pattern- drawing elements A coloring composition for line- or pattern-drawing elements which comprises as a base material thereof one or more acidic sublimating substances such as benzoic acid, salicylic acid and phthalic acid. Lines and/or patterns drawn with the coloring composi...	06/21/1977

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Class 106/31.23 - Erasable composition