Abstract: Elastomeric polyolefin-based ionomers and methods for making same. The ionomers can include a copolymer comprising: C2-C60 ?-olefin monomer units; optional C2-C60 ?-olefin comonomer units different than the monomer units; optional diene units; and about 0.1 wt % to about 20 wt % metal alkenyl units, based on the weight of the copolymer, wherein the metal alkenyl units have the formula —R(A?)—, wherein R is an alkyl group containing 2 to 10 carbon atoms, and A? is an anionic group. The copolymer can further include one or more metal cations derived from the group consisting of alkali metals, alkaline earth metals, group 3-12 metals, group 13-16 metals, and combination(s) thereof. The ionomer has a glass transition temperature of ?60° C. to 5° C., and a weight average (Mw) of 50 to 5,000 kg/mol.

Abstract: An apparatus for printing a multicolor image on a sheet movable along a sheet path in a process direction. The apparatus includes a first printhead mounted at a first location along the sheet path and containing a first type ink for printing a first portion of the image on the sheet in which the first type ink has a surface tension greater than 40 dynes/cm at room temperature. The apparatus also includes a set of secondary printheads mounted along the sheet path and separated a small gap from the first printhead. The set of secondary printheads each contains a secondary type ink for printing a secondary portion of the multicolor image on the sheet, and each of the secondary type ink has a surface tension less than 40 dynes/cm at room temperature.

Abstract: A multi-color ink-jet printer in which a first partial image is created on a recording medium, and then a second partial image is created on the same recording medium after the first partial image is substantially dried. The first partial image comprises an ink which dries at a slower rate than that of the second partial image. In one embodiment, means are provided for heating the recording medium prior to the creation of the second partial image.

Abstract: Disclosed is an ink composition comprising an aqueous liquid vehicle and pigment particles having attached to the surfaces thereof a polymerized vinyl aromatic salt. In one embodiment, the polymeric vinyl aromatic salt is chemically grafted to the surfaces of the pigment particles; in another embodiment, the polymeric vinyl aromatic salt is adsorbed onto the surfaces of the pigment particles. Preferably, the modified pigment particles have an average particle diameter of less than about 1 micron. The ink composition is suitable for applications such as ink jet printing processes, particularly thermal ink jet printing processes. Images generated with ink compositions of the present invention are sharp, waterfast, lightfast, and of high optical density, exhibiting no feathering, and can be electrically conductive.

Abstract: Disclosed are novel silylated hydroxyl squaraine compositions, novel deuterated hydroxyl squaraine derivatives, and processes for the preparation thereof. More specifically, there is disclosed a process for the preparation of photoconductive hydroxyl squaraine pigment compositions useful as visible and near infrared photoconductor materials comprising (1) effecting functionalization of the hydroxyl squaraine in an organic solvent system wherein the hydroxyl group therein are silylated, and (2) subjecting the resulting silylated products to hydrolysis enabling conversion to purified squaraine compositions, or conversion to deuterated hydroxyl squaraine derivatives. The hydroxyl squaraine compositions obtained are useful, for example, as photogenerating pigments in layered imaging members.

Abstract: An electrophotographic imaging member is disclosed comprising a charge generation layer, a contiguous charge transport layer comprising an aromatic amine or hydrazone charge transport molecule in a continuous polymeric binder phase, and a cellulosic hole trapping material located on the same side of the charge transport layer as the charge generation layer, the cellulosic hole trapping material being free of electron withdrawing groups and having the structural formula ##STR1## wherein R is independently selected from the group consisting of hydrogen and a substituted or unsubstituted group selected from the group consisting of an alkyl group containing 1 to 20 carbon atoms, a hydroxyalkyl group containing 1 to 20 carbon atoms, a hydroxyether group containing 1 to 20 carbon atoms and an aminoalkyl group containing 1 to 20 carbon atoms, and n is the number of cellulose repeating units from 1 to 3,000. A process for using this electrophotographic imaging member is also disclosed.

Abstract: An improved infrared sensitive flash fusible colored toner composition comprised of (1) resin particles, (2) pigment particles selected from the group consisting of cyan, magenta, yellow, blue, red and green, and (3) additives selected from the group consisting of vanadyl phthalocyanines, naphthalocyanines, and the quaternary ammonium salts selected from the group consisting of 1,1',3,3,3',3 hexylmethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine perchlorate, 5,5'-dichloro-11-diphenylamine-3,3'-diethyl-10,12-ethylenethiatricarbocyan ine perchlorate, 1,1',3,3,3',3'-hexamethylindotricarbocyanine perchlorate, and 3,3'-di(3-acetoxypropyl)-11-diphenylamine-10,12-ethylene-5,6,5',6'-dibenzo thiatricarbocyanine perchlorate.