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| Number | Title | Issue Date |
| 7419759 | Photoresist composition and method of forming a pattern using the same The photoresist composition of the present invention includes a solvent mixture, a resin, a photo acid generator, and a quencher, the solvent mixture comprising a first solvent containing an ether compound and a second solvent having a polarity stronger than the fir... | 09/02/2008 |
| 7303858 | Photoacid generating polymer, its preparation method, top anti-reflective coating composition comprising the same, method of forming a pattern in a semiconductor device, and semiconductor device Disclosed herein is a photoacid generating polymer represented by Formula 1 below: wherein R1 is a C1-10 hydrocarbon or a C1-10 hydrocarbon in which the hydrogen atoms are wholly ... | 12/04/2007 |
| 7144671 | Adjuvants for negatively charged toners Negative liquid electrographic toner compositions are provided comprising a liquid carrier having a Kauri-Butanol number less than about 30 mL and a plurality of negatively charged toner particles dispersed in the liquid carrier. The toner particles comprise a polym... | 12/05/2006 |
| 7118842 | Charge adjuvant delivery system and methods A system for printing a liquid toner is provided comprising a liquid electrographic toner composition comprising a liquid carrier having a Kauri-Butanol number less than about 30 mL and a plurality of charged toner particles dispersed in the liquid carrier, wherein ... | 10/10/2006 |
| 7070900 | Adjuvants for positively charged toners Positive liquid electrographic toner compositions are provided comprising a liquid carrier having a Kauri-Butanol number less than about 30 mL and a plurality of positively charged toner particles dispersed in the liquid carrier. The toner particles comprise a polym... | 07/04/2006 |
| 6211287 | Particle formation process and marking materials thereof A process for the preparation of resin particles comprising: adding a mixture of at least one free radical reactive monomer continuously to a heated aqueous solution of a water soluble free radical initiator and a water soluble salt to form latex emulsion part... | 04/03/2001 |
| 6146803 | Polymer blend liquid toner compositions In a liquid toner for use in imaging processes which comprises pigmented polymer particles, at least one charge director and a hydrocarbon liquid toner carrier, the polymer is a blend of at least two distinct polymer components, the blend being characteri... | 11/14/2000 |
| 6114076 | Reactive melt mixing processes A reactive melt mixing process for the preparation of a low fix temperature toner resin, comprising: (a) mixing a reactive base resin, an initiator, and a polyester with amine functionality, and (b) crosslinking the resulting polymer melt under high shear to f... | 09/05/2000 |
| 6011119 | Resin composition for electrophotographic toner, and toner A resin composition is provided for an electro-photographic toner. The composition comprises 5 to 95 parts by weight of a high molecular weight vinyl copolymer polymer and 95 to 5 parts by weight of a low molecular weight vinyl copolymer. The former ethyl... | 01/04/2000 |
| 5945246 | Process for producing a toner for electrophotography The toner for electrophotography contains a binder resin, wherein the binder resin has a condensation polymerization-type resin for forming a matrix and an addition polymerization-type resin for forming a dispersed domain. The dispersed domain with a cros... | 08/31/1999 |
| 5866290 | Toner and developer compositions A toner composition comprised of a polyester resin with hydrophobic end groups, colorant, optional wax, optional charge additive, and optional surface additives.... | 02/02/1999 |
| 5853939 | Toner for electrostatic image development The present invention relates to a toner for electrostatic image development comprising: a lubricant having a DSC determined endothermic peak at 50°-130° C., with the half value width of said endothermic peak being not more than 15° C., and represented... | 12/29/1998 |
| 5830979 | Polyester resin for electrophotography toner, process for preparing the same, and an electrophotographic toner comprising the same A polyester resin for a toner, wherein a maximum molecular weight is in a range of 1×103 to 8×103, Mw/Mn is in a range of 20 to 200, a proportion of component having a molecular weight of 1×105 or less is comprised at a... | 11/03/1998 |
| 5792583 | Toner for developing electrostatic latent image The present invention provides a toner for developing an electrostatic latent image comprising:a colorant; and binder resin including a low-molecular component having a weight-average molecular weight from 3,000 to 15,000 which is obtained by gel permeati... | 08/11/1998 |
| 5780195 | Toner resin compositions A toner resin composition and a method of making the same are disclosed. The toner resin composition comprises a polyester resin formed from a reaction between a polybasic acid or anhydride and a polyhydric alcohol, and a polyfunctional epoxy resin which ... | 07/14/1998 |
| 5750301 | Toner for a two-component type developer The invention provides toner for a two-component type developer containing toner particles including a binder resin and magnetic powder dispersed in the binder resin. The binder resin in the toner is prepared from a composition including at least one of (... | 05/12/1998 |
| 5741617 | Toner for developing electrostatic images A toner for developing electrostatic images, which comprises a binder resin, a colorant and a wax composition, characterized in that the wax composition has a molecular weight distribution as measured by GPC, having a maximum in the region of molecular we... | 04/21/1998 |
| 5714296 | Graft copolymers and colorless, transparent electrophotographic toners thereof A graft copolymer of recurring units of (C6 -C18)alkyl (meth)acrylate (A), vinylpyridine (B), glycidyl (meth) acrylate (C), and glycidyl (meth) acrylate units esterified with (meth)acrylic acid (D) onto which polymeric side chains of... | 02/03/1998 |
| 5712074 | Toner for developing electrostatic latent image A toner for developing an electrostatic latent image including a binder resin, a colorant, and a modified polysiloxane having the general formula (1): ##STR1## In the above general formula, R1 to R4, which may be identical ... | 01/27/1998 |
| 5679489 | Electrostatic image developing toner The present invention provides an electrophotographic toner free of metal such as chromium. A novel electrostatic image developing toner is provided, comprising as a charge-controlling agent one or more selected from the group consisting of compounds repr... | 10/21/1997 |
| 5665507 | Resin-coated carrier for electrophotographic developer A magnetic particle brush developing carrier used for electrostatic latent image developing is disclosed, comprising a magnetic particle having a surface coating comprising two kinds of fluoro-type resins, with one of the resins having a higher critical s... | 09/09/1997 |
| 5658704 | Toner processes A process for the preparation of toner comprised of i) flushing pigment into a sulfonated polyester resin, and which resin has a degree of sulfonation of from between about 0.5 and about 2.5 mol percent based on the repeat unit of the polymer; ii) dispersing t... | 08/19/1997 |
| 5641602 | Block copolymer containing binder composition and electro photographic toner composition derived therefrom Intermediate binder composition for use in toner compositions, comprising (a) a block copolymer comprising one predominantly poly(monovinyl aromatic) block per molecule and one predominantly poly(conjugated diene) block per molecule, the latter blocks bei... | 06/24/1997 |
| 5629123 | Toners for use in developing electrostatic images A toner for developing electrostatic images is disclosed which comprises a coloring agent, a styrene homopolymer or copolymer with a vinyl monomer or monomers, and polypropylene in an amount between about 0.02 and 40 parts by weight per 100 parts by weigh... | 05/13/1997 |
| 5629122 | Toner for developing electrostatic image and image forming method Disclosed is a toner for developing an electrostatic image. The toner comprises a binder resin and a wax, and the value of weight average molecular weight/number average molecular weight (Mw/Mn) of the wax is not more than 1.5.... | 05/13/1997 |
| 5597673 | Toner for developing electrostatic latent image A toner comprising a binder resin, a colorant, and a charge controlling agent comprising (a) a specific iron-containing azo dye and (b) a copolymer of a styrene monomer and/or an acrylic monomer with a sulfonic acid group-containing acrylamide, wherein th... | 01/28/1997 |
| 5580691 | Toner for a two-component type developer The invention provides toner for a two-component type developer containing toner particles including a binder resin and magnetic powder dispersed in the binder resin. The binder resin in the toner is made of a composition including a low molecular weight ... | 12/03/1996 |
| 5571652 | Encapsulated toner for heat-and-pressure fixing and method for producing the same The encapsulated toner for heat-and-pressure fixing which includes a heat-fusible core material containing at least a thermoplastic resin and a coloring agent, and a shell formed thereon so as to cover the surface of the core material is produced by a pro... | 11/05/1996 |
| 5571655 | Toner reactive melt mixing process Low fix temperature toners are fabricated by a two step melt mixing and reactive melt mixing process wherein there is initially prepared, for example, using a melt mixing device, a composite of pigment and resin, followed by crosslinking of the resin comp... | 11/05/1996 |
| 5565297 | Liquid developer compositions with oxygen containing copolymers A liquid developer comprised of a liquid, thermoplastic resin particles, a nonpolar liquid soluble charge director comprised of at least one oxygen containing group with from 1 to 5 oxygen atoms covalently bound to a quaternized ammonium nitrogen in an AB... | 10/15/1996 |
| 5556732 | Processes for preparing toners with selectable gloss A process for preparing low fix temperature toner resin mixture comprising melt blending a resin mixture comprised of a first polyester resin with a low gloss value, and a second polyester resin with a high gloss value, to form a toner resin mixture havin... | 09/17/1996 |
| 5521045 | Toner for a two-component-type magnetic developing agent having excellent spent resistance A toner in which a small amount of magnetic powder is disposed in a resin medium for fixing which comprises a cationic polar group-containing copolymer resin or a resin composition. A distinguished feature resides in that the toner does not contain a char... | 05/28/1996 |
| 5518851 | Toner The present specification discloses a toner for electrophotography. This toner comprises two or more kinds of binder resins, and is characterized in that the surface tension of each of the binder resins and the melt viscosity thereof, both at a temperature of ... | 05/21/1996 |
| 5491043 | Electrostatic toners with polyamine charge stabilizers An electrostatic toner contains a polymeric binder and as a charge stabilizer a polyamine whose average molecular weight is from 150 to 15,000 and wherein the nitrogen atoms are separated from each other by C1 -C13 - alkylene, which ... | 02/13/1996 |
| 5484679 | Liquid developer compositions with multiple block copolymers A negatively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, a charge adjuvant, pigment, and an ABA polymer charge director wherein A and B represent the polymer segments.... | 01/16/1996 |
| 5460915 | Charge controller, toner binder composition and electrophotographic toner A charge controller for an electrophotographic toner is disclosed which comprises a graft or block copolymer comprising: (a) a polymer moiety having an alkyl group containing 6-50 carbon atoms and a carboxyl group, said moiety being selected from the group con... | 10/24/1995 |
| 5455315 | Emulsion polymerization processes and toners thereof An in situ process for the preparation of resin particles comprising: preparing a seed particle latex by aqueous emulsion polymerization of a first mixture comprised of at least one monomer, an optional chain transfer agent, and a water soluble free radic... | 10/03/1995 |
| 5449719 | Two-step processes for the preparation of unsaturated polyesters A process for the preparation of an unsaturated polyester which comprises the first reaction of a phthalate and a glycol to provide a transesterified product, and subsequently a second reaction comprising reacting said product with an unsaturated dicarbox... | 09/12/1995 |
| 5427883 | Toner composition for electrophotography The present invention provides a toner composition mainly comprising a binder resin (D) which contains at least 20% by weight of an urethane-modified polyester resin (C) obtained by reacting a polyester resin (A) with an isocyanate compound (B) and whose ... | 06/27/1995 |
| 5422707 | Toner for developing electrostatic images, detachable apparatus, image forming apparatus and facsimile apparatus A toner for developing an electrostatic image, comprises a binder resin and a colorant. The toner has a glass transition temperature (Tg) of 65° C. or lower. The binder resin comprises a styrene-acrylic copolymer formed from at least a styrenic monomer a... | 06/06/1995 |
