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| Number | Title | Issue Date |
| 7390844 | Polymer particle stabilized by dispersant and method of preparation The present invention discloses a water dispersible polymer particle stabilized by a hydrophobically capped oligomeric acrylamide dispersant. The present invention also discloses a heterogeneous method for forming polymer particles comprising providing a water immis... | 06/24/2008 |
| 7059714 | Ink printing method utilizing stabilized polymeric particles The present invention discloses an ink printing method including the steps of: a) providing an ink printer that is responsive to digital data signals; b) loading said printer with an image-recording element includi... | 06/13/2006 |
| 7033716 | Two-stage milling process for preparing cocrystals of titanyl fluorophthalocyanine and titanyl phthalocyanine, and electrophotographic element containing same An amorphous mixture consisting essentially of TiOFPc and TiOPc and containing more than 75 weight percent of substantially chlorine-free TiOPc is produced by forming a mixture of crude crystalline TiOFPc and crude crystalline, substantially chlorine-free TiOPc that... | 04/25/2006 |
| 7026084 | Cocrystals containing high-chlorine titanyl phthalocyanine and low concentration of titanyl fluorophthalocyanine, and electrophotographic element containing same In a process for forming an amorphous TiOPc/TiOFPc pigment mixture containing a low concentration of TiOFPc, a mixture containing phthalonitrile and titanium tetrachloride is subjected to reaction conditions effective to form lightly chlorine-substituted crude cryst... | 04/11/2006 |
| 6866902 | Ink recording element containing stabilized polymeric particles An ink recording element is described comprising a support having thereon at least one image-receiving layer comprising polymeric particles in a polymeric binder, wherein the polymeric particle is stabilized by a hydrophobically-capped oligomeric acrylamide dispersa... | 03/15/2005 |
| 6780942 | Method of preparation of porous polyester particles The present invention relates to a method of forming porous particles comprising preparing a mixture of an organic phase and an aqueous phase comprising an unsaturated polyester, a water immiscible organic solvent, at least one organic-soluble ethylenically unsatura... | 08/24/2004 |
| 6779885 | Ink jet printing method An ink jet printing method having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element having a support having thereon an image-receiving layer of porous polymeric particle... | 08/24/2004 |
| 6726991 | Porous polymer particles and method for preparation thereof Core/shell particles having a core of a porous polymer and a shell of an inorganic colloid, the inorganic colloid having a median diameter of less than about 0.07 μm, and the core/shell particles having a median diameter of less than about 50 μm. ... | 04/27/2004 |
| 6677004 | Ink jet recording element An ink jet recording element having a support having thereon an image-receiving layer of porous polymeric particles in a polymeric binder, the porous polymeric particles being prepared in the presence of an anionic or cationic dispersant, and the image-re... | 01/13/2004 |
| 6554419 | Ink jet printing method An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an inkjet recording element comprising a support having thereon an image-receiving layer comprising porous ... | 04/29/2003 |
| 6541103 | Ink jet recording element An ink jet recording element comprising a support having thereon an image-receiving layer comprising porous polymeric particles in a polymeric binder, the porous polymeric particles having the formula: .paren open-st.A.paren close-st.x.paren open-st... | 04/01/2003 |
| 6528147 | Ink jet printing method An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising an opaque support having thereon an image-receiving layer comprising... | 03/04/2003 |
| 6492006 | Ink jet recording element An ink jet recording element comprising a support having thereon an image-receiving layer comprising at least about 70% by weight of porous polymeric particles in a polymeric binder, the porous polymeric particles having a core/shell structure comprising ... | 12/10/2002 |
| 6475602 | Ink jet recording element An ink jet recording element comprising an opaque support having thereon an image-receiving layer comprising porous polymeric particles in a polymeric binder, the porous polymeric particles having a median diameter of less than about 1 μm and having a de... | 11/05/2002 |
| 6440539 | Ink jet printing method An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon an image-receiving layer comprising at leas... | 08/27/2002 |
| 6380280 | Ink jet recording element An ink jet recording element comprising a support having thereon an image-receiving layer comprising at least about 80% by weight of non-porous polymeric particles in a polymeric binder, the non-porous polymeric particles having a core/shell structure com... | 04/30/2002 |
| 6376599 | Ink jet recording element An ink jet recording element comprising a support having thereon an image-receiving layer comprising non-porous polymeric particles in a polymeric binder, the non-porous polymeric particles being present in an amount of at least about 8 parts of particles... | 04/23/2002 |
| 6369152 | Ink jet printing method An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon an image-receiving layer comprising non-por... | 04/09/2002 |
| 6022656 | Bipolar electrophotographic elements A photoconductive element comprising an electrically conductive support and at least one active layer, said active layer comprising N-(p-(di-p-tolylamino)phenyl)-N'-(1,2-dimethylpropyl)-1,4,5,8-naphthalenet etracarboxylic diimide and one or more perylene d... | 02/08/2000 |
| 5952140 | Bipolar charge transport materials useful in electrophotography A bipolar charge transport material that is useful in electrophotography, said bipolar charge transport material N,N'-bis-p-(di-p-tolylamino)phenyl!-1,4,5,8-naphthalenetetracarboxylic acid having the structure: ##STR1##... | 09/14/1999 |
| 5766810 | Methods for preparing cocrystals of titanyl fluorophthalocyannes and unsubstituted titanyl phthalocyanine, electrophotographic elements, and titanyl phthalocyanine compositions Amorphous and cocrystallized unsubstituted titanyl phthalocyanine-titanyl fluorophthalocyanine compositions, preparation methods, and electrophotographic elements utilizing the compositions. The method has the steps of: admixing crude titanyl phthalocyani... | 06/16/1998 |
| 5629418 | Preparation of titanyl fluorophthalocyanines Titanyl fluorophthalocyanines, and electrophotographic elements, and a method for preparing titanyl fluorophthalocyanine having the steps of: dissolving titanyl fluorophthalocyanine in acid to form a solution; admixing the solution and water to precipitat... | 05/13/1997 |
| 5614342 | Methods for preparing cocrystals of titanyl fluorophthalocyanines and unsubstituted titanyl phthalocyanine, electrophotographic elements, and titanyl phthalocyanine compositions Cocrystallized titanyl phthalocyanine-titanyl fluorophthalocyanine compositions, preparation methods, and electrophotographic elements utilizing the compositions. The method has the steps of: admixing crude titanyl phthalocyanine and crude titanyl fluorop... | 03/25/1997 |
| 5358820 | Thermally assisted transfer process for transferring electrostatographic toner particles to a thermoplastic bearing receiver A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of less than 8 micrometers from the surface of an element to a receiver. The element comprises a conductive substrate an... | 10/25/1994 |
| 5334477 | Thermally assisted transfer process A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of less than 8 micrometers from the surface of an element to a receiver. The element comprises a conductive substrate an... | 08/02/1994 |
| 5204198 | Photoelectrographic elements utilizing nonionic sulfonic acid photogenerators The present invention relates to a photoelectrographic element having a conductive layer in electrical contact with an acid photogenerating layer which is free of photopolymerizable materials and contains an electrically insulating binder and a nonionic s... | 04/20/1993 |
| 5080989 | Photoconductive block copolymers Photoconductive polycarbonate block copolymers are provided containing alternate polycarbonate blocks and photoconductor blocks. The photoconductive blocks are copolymers of polyesters and/or polycarbonates with reactive photonconductors which are prefera... | 01/14/1992 |
| 4968571 | Electrophotographic recording elements containing a combination of photoconductive perylene materials An electrophotographic recording element comprising a combination of photoconductive perylene materials that are dispersed in a binder to form layers having excellent photosensitivity and resistance to abrasion. The materials are perylene-3,4,9,10-tetraca... | 11/06/1990 |
| 4423203 | Electrically photosensitive polymers containing vinylene-1,4-phenylene-imino-1,4-phenylene-vinylenearylene groups Disclosed are electrically photosensitive polymers in which recurring units contain vinylene-1,4-phenylene-imino-1,4-phenylene-vinylenearylene groups included in the polymer backbone. In one embodiment, the disclosed polymers are employed as the principal... | 12/27/1983 |
| 4414152 | Bis aryl-azo derivatives of 2,3-naphthalenediol Bis aryl-azo compounds of the formula ##STR1## wherein R1 is lower alkyl and R2 is fluoro or amino. The compounds are useful as neutral density pigments in electrophotographic developers and have good light stability.... | 11/08/1983 |
| 4414320 | Bis aryl-azo derivatives of 2,3-naphthalenediol and electrophotographic liquid developer compositions containing them Novel 1,4-bis aryl-azo derivatives of 2,3-naphthalenediol in which the aryl groups are substituted with alkoxy and with sulfonamide or fluorosulfonyl groups. These compounds are useful as neutral density pigments in electrophotographic developers and have... | 11/08/1983 |
