...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7288347 | Method of applying spot varnish to xerographic image and emulsion aggregation toners for use therein A method of forming a xerographic image having at least one portion with a gloss different from a gloss of another portion of the xerographic image includes xerographically forming a toner image on a surface of a substrate and forming a finish over the toner image a... | 10/30/2007 |
| 7052730 | Document security processes A process for generating on a substrate, such as a document, a security mark comprised of a glossy ink containing a colorant. ... | 05/30/2006 |
| 7049042 | Toner processes A process for the preparation of toner by, for example, mixing a colorant, a latex, and a coagulant comprising cationic wax dispersion to provide, for example, a toner composition of high gloss images. ... | 05/23/2006 |
| 7041425 | Toner processes A process including blending a latex emulsion of resin, water, and an ionic surfactant, a colorant dispersion comprised of a colorant, water, and an ionic surfactant; and a wax dispersion comprised of wax, water and an ionic surfactant, heating the resulting mixture... | 05/09/2006 |
| 7037633 | Toner processes A process involving heating a mixture of a colorant dispersion, a latex emulsion, and an optional wax dispersion in the presence of a coagulant containing a metal ion, a base, and an organic sequestering agent, and wherein said heating involves a first heating and a... | 05/02/2006 |
| 6984480 | Toner processes A process comprising heating a mixture of colorant and latex in the presence of a coagulant and a silicate salt, and wherein said heating comprises a first heating equal to or below about the glass transition temperature of a polymer contained in said latex, and a s... | 01/10/2006 |
| 6942954 | Toner processes A toner process involving the heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, and a second latex containing a resin free of crosslinking in the presence of a coagulant to p... | 09/13/2005 |
| 6899987 | Toner processes A process for the preparation of toner by, for example, mixing a latex with a colorant mixture comprised of colorant, an ionic surfactant, and a polytetrafluoroethylene; adding a coagulant; heating the resulting mixture below about the glass transition temperature (... | 05/31/2005 |
| 6767684 | Toner processes A toner process involving mixing a colorant dispersion comprising an acicular magnetite dispersion and a colorant dispersion with a latex, a wax dispersion, a crosslinked resin, and a coagulant. ... | 07/27/2004 |
| 6673505 | Toner coagulant processes A process for the preparation of a toner by mixing a colorant, a latex, optionally a wax and a polyamine salt coagulant to form toner size aggregates, wherein the polyamine salt is then neutralized or converted to an amide or hydrolyzed to an acid by the ... | 01/06/2004 |
| 6673500 | Document security processes A process comprising applying a toner security mark on a document generated by xerographic means, and which mark possesses white glossy characteristics, and wherein said toner is comprised of a waterborne polymer resin and a colorant, and optionally a sec... | 01/06/2004 |
| 6664017 | Document security processes A process comprising applying a toner security mark on a document generated by xerographic means and which mark possesses white glossy characteristics, and wherein said toner is comprised of a polymer and a colorant.... | 12/16/2003 |
| 6656658 | Magnetite toner processes A toner process comprising heating an acidified dispersion of an acicular magnetite, a carbon black colorant dispersion, an optional wax dispersion, and an acicular latex.... | 12/02/2003 |
| 6656657 | Toner processes A toner process comprising mixing an acidified dispersion of an acicular magnetite with an anionic latex, an anionic carbon black dispersion, and an anionic wax dispersion.... | 12/02/2003 |
| 6627373 | Toner processes An emulsion aggregation process for the preparation of a magnetite toner, and where the magnetite can function as a negatively charged coagulant to facilitate aggregation of a basic cationic latex, a cationic carbon black dispersion and a cationic wax dis... | 09/30/2003 |
| 6617092 | Toner processes An emulsion aggregation process for the preparation of a magnetite toner, and where the magnetite can function as a coagulant.... | 09/09/2003 |
| 6582873 | Toner coagulant processes A toner process including, for example, mixing a latex with a colorant wherein the latex contains resin and an ionic surfactant, and the colorant contains a surfactant and a colorant; adding a polyaluminum chloride; affecting aggregation by heating; addin... | 06/24/2003 |
| 6576389 | Toner coagulant processes A process for the preparation of toner by, for example, mixing a colorant, a latex, a wax and a dual coagulant mixture comprising water solubilized silica with an alumina coating referred to as aluminized silica and a polyaluminum chloride to provide, for... | 06/10/2003 |
| 6562541 | Toner processes A process for the preparation of toner by, for example, mixing a latex with a colorant mixture comprised of colorant, an ionic surfactant, and a polytetrafluoroethylene; adding a coagulant; heating the resulting mixture below about the glass transition te... | 05/13/2003 |
| 6541175 | Toner processes A process involving, for example, providing or generating an emulsion latex comprised of sodio sulfonated polyester resin particles by adding with shearing to the latex a colorant dispersion comprising from about 20 to about 50 percent of a predispersed c... | 04/01/2003 |
| 6500597 | Toner coagulant processes A process for the preparation of chemical toner by mixing a colorant, a latex, optionally a wax, and a first coagulant of, for example, a polyaluminum sulfosilicate and a second cationic coagulant of, for example, a benzylalkonium chloride.... | 12/31/2002 |
| 6416920 | Toner coagulant processes A process for the preparation of toner by, for example, mixing a colorant, a latex, optionally a wax and a water solubilized silica with an alumina coating or an aluminized silica as a coagulant.... | 07/09/2002 |
| 6352810 | Toner coagulant processes A process for the preparation of toner comprising mixing a colorant, a latex, and a polyamine followed by aggregation and coalescence, and wherein said process is accomplished in the presence of an oxidizing agent.... | 03/05/2002 |
| 6268102 | Toner coagulant processes A process for the preparation of toner comprising mixing a colorant, a latex, optionally a wax and a polyaluminum sulfosilicate.... | 07/31/2001 |
| 6210853 | Toner aggregation processes A process for the preparation of toner including (i) gerating by emulsion polymerization in the presence of an initiator a first resin latex emulsion; (ii) generating by polycondensation a second resin latex optionally in the presence of a catalyst; (iib)... | 04/03/2001 |
| 6190820 | Toner processes A process for the preparation of toner by, for example (i) generating by emulsion polymerization in the presence of an initiator a first resin latex emulsion; (ii) generating in the presence of an oil soluble initiator by solution polymerization a second resin... | 02/20/2001 |
| 6132924 | Toner coagulant processes A process for the preparation of toner comprising mixing a colorant, a latex, and two coagulants, followed by aggregation and coalescence.... | 10/17/2000 |
| 6130021 | Toner processes A process involving the mixing of a latex emulsion containing resin and a surfactant with a colorant dispersion containing a nonionic surfactant, and a polymeric additive and adjusting the resulting mixture pH to less than about 4 by the addition of an ac... | 10/10/2000 |
| 6120967 | Sequenced addition of coagulant in toner aggregation process A process for the preparation of a toner composition includes (i) forming a resin latex dispersion of a resin in an aqueous ionic surfactant solution from a latex utilizing an ionic surfactant and optionally a nonionic surfactant; (ii) preparing a pigment... | 09/19/2000 |
| 5994020 | Wax containing colorants A toner process which comprises mixing (i) a colorant dispersion, and a (ii) a nonionic surfactant, an ionic surfactant or mixtures thereof, with (iii) a latex comprised of resin and a mixture of anionic surfactant and a nonionic surfactant; (iv) heating the result... | 11/30/1999 |
| 5981651 | Ink processes A process comprising (1) polymerizing an organic phase of monomer in the presence of a carboxylic acid, an oil soluble chain transfer agent, and a partially water soluble chain transfer agent; and which polymerizing is accomplished in the presence of (2) ... | 11/09/1999 |
| 5977210 | Modified emulsion aggregation processes A process for the preparation of ink compositions comprising the emulsion polymerization of monomer, water, surfactant, and initiator with stirring and heating to provide a latex; mixing therewith a pigment dispersion of pigment particles, water, and cati... | 11/02/1999 |
| 5936008 | Ink jet inks containing toner particles as colorants An ink for ink jet printing includes a liquid vehicle comprising water and toner particles with a colorant dispersed in or associated with the toner particles. The ink composition combines the print quality advantages of xerographic printing with the econ... | 08/10/1999 |
| 5863698 | Toner processes A process for the preparation of toner comprising mixing a colorant containing a surfactant and a latex emulsion, and wherein the latex emulsion contains resin and a nonionic hydrolyzable surfactant, and wherein said surfactant is of the Formulas (I) or (... | 01/26/1999 |
| 5766818 | Toner processes with hydrolyzable surfactant A process for the preparation of toner by mixing a colorant dispersion and a latex emulsion, and wherein the latex emulsion contains resin and a surfactant, wherein the surfactant is, for example, of the Formulas (I) or (II) ##STR1## wherein R | 06/16/1998 |
| 5744520 | Aggregation processes A process for the preparation of polymer compositions which comprises mixing a conductive component with an anionic polymeric latex containing a polymer; adding a cationic surfactant, or flocculant whereby the aggregation of the latex particles and the co... | 04/28/1998 |
| 5683847 | Toner aggregation latex processes A process comprising: (i) preparing a pigment dispersion, which dispersion is comprised of a pigment, a cationic surfactant, and optionally a charge control agent; (ii) shearing said pigment dispersion with a latex comprised of water, resin, a counterionic or ... | 11/04/1997 |
| 5679724 | Submicron particles for ink jet inks An ink for ink jet printing includes an emulsifiable polymer resin and a pigment, and may be made by: (a) combining (1) an emulsion of an emulsifiable polymer resin in an anionic medium with (2) a pigment and a cationic surfactant; and (b) aggregating par... | 10/21/1997 |
| 5650252 | Toner grafting processes A process for the preparation of toner comprising: (i) preparing a pigment dispersion, which dispersion is comprised of a pigment, an ionic surfactant, and optionally a charge control agent; (ii) shearing said pigment dispersion with a latex or emulsion blend ... | 07/22/1997 |
| 5604076 | Toner compositions and processes thereof A process for the preparation of toner compositions comprising: (i) preparing a latex or emulsion resin comprised of a polyester core encapsulated within a styrene based resin shell by heating said polyester emulsion containing an anionic surfactant with a mix... | 02/18/1997 |