Abstract: Unsaturated linear polymers have repeating units of a reaction product of a first monomer, a second monomer, a third monomer and optionally a fourth monomer. The linear polymers have a glass transition temperature ranging from about 52.degree. C. to about 61.degree. C. The first monomer should have a weight average molecular weight less than 200. The second monomer may be a dicarboxylic acid or diester which is different than the third monomer. A concentration of second residues of the polymer, derived from the second monomer, ranges from about 3 wt. % to about 15 wt. %, based on the total weight of the polymer. The third monomer is an aromatic dicarboxylic acid or an ester thereof. In the polymer, a concentration of third residues, derived from the third monomer, ranges from about 40 wt. % to about 55 wt. %, based on the total weight of the polymer. The fourth monomer is a diol having a higher molecular weight than the first monomer.

Abstract: Low fix temperature toner resins are fabricated by a reactive melt mixing process wherein polymer resins are cross-linked at high temperature and high shear. The resins are particularly suitable for high speed fusing, show excellent offset resistance and wide fusing latitude and superior vinyl offset properties.

Abstract: A reactive melt mixing process for preparing toner resin, comprising: melting a reactive base resin, thereby forming a polymer melt; adding to said polymer melt a free radical initiator compound and optionally a vinyl monomer compound to form a second melt; and heating and mixing under high shear said second melt with optional addition of a vinyl monomer compound to form a partially crosslinked and partially gelled toner resin.

Abstract: A reactive melt mixing process for the preparation of a toner resin comprising the steps of(a) melt mixing a base resin with a matrix resin containing a crosslinking agent, thereby forming a polymer melt; and(b) crosslinking said polymer melt under high shear to form a crosslinked toner resin.

Abstract: Low fix temperature toner resins are fabricated by a reactive melt mixing process wherein polymer resins are cross-linked at high temperature and high shear. The resins are particularly suitable for high speed fusing, show excellent offset resistance and wide fusing latitude and superior vinyl offset properties.

Abstract: A low melt toner resin with low minimum fix temperature and wide fusing latitude contains a linear portion and a cross-linked portion containing high density cross-linked microgel particles, but substantially no low density cross-linked polymer. The resin may be formed by reactive melt mixing.

Abstract: A toner composition comprised of resin, pigment particles, and a distearyl dimethyl ammonium hexafluorophosphate charge enhancing additive.

Abstract: A low melt toner resin with low minimum fix temperature and wide fusing latitude contains a linear portion and a cross-linked portion containing high density cross-linked microgel particles, but substantially no low density cross-linked polymer. The resin may be formed by reactive melt mixing.

Abstract: A toner composition comprised of resin particles, pigment particles, and a polysalt charge enhancing additive of the following formula ##STR1## wherein X is an aromatic substituent.

Abstract: A toner composition comprised of resin particles, pigment particles, and a charge enhancing additive as represented by the following formula ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of alkyl, and R.sub.3 is an aromatic group, and m represents the number of repeating segments.

Abstract: A toner composition comprised of resin particles, pigment particles, and a charge enhancing additive as represented by the following formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are idependently selected from the group consisting of alkyl and aryl.

Abstract: A toner composition comprised of resin particles, pigment particles, and a tertiary amine hydrogen ammonium triflate charge enhancing additive.

Abstract: A toner composition comprised of resin, pigment, and a nonionic fluorosurfactant charge enhancing additive.

Abstract: A charge generating layer for an electrophotographic imaging member is provided containing trigonal selenium and phthalocyanine photoconductive particles dispersed in a film forming polymer binder. The film forming polymer binder may be a styrene butadiene copolymer having a weight percent styrene to butadiene content of about 85:15 to about 95:5 and a glass transition temperature range of about 50.degree. C. to about 60.degree. C. A process for producing the homogeneous dispersion of photoconductive particles includes separately milling the trigonal selenium particles and the phthalocyanine particles to approprite particle sizes, and dispersing the separately milled particles in the film forming polymer binder.

Abstract: Disclosed is a toner composition comprised of resin particles, pigment particles, and a wax component comprised of polymeric alcohols of the formulaCh.sub.3 (CH.sub.2).sub.n CH.sub.2 OHwherein n is a number of from about 30 to about 300.

Abstract: A toner composition comprised of particles of a polyester with siloxane block segments therein, which particles have incorporated therein release additives.

Abstract: An electrophotographic imaging process which comprises the formation of a latent image on a photoconductive imaging member; thereafter developing the image with a toner composition comprised of resin particles, pigment particles, and a sulfur containing organopolysiloxane wax; subsequently transferring the developed image to a suitable substrate; and permanently affixing the image thereto, wherein there result images with an absence of unwanted toner spots thereon.

Abstract: Toner compositions comprised of resin particles, pigment particles, and as a charge enhancing additive inner salts wherein the negative charge center is covalently attached to the positive charge center. Also disclosed are developer compositions comprised of the aforementioned toner components and carrier particles, which compositions are particularly useful for the development of the electrostatic latent images. Additionally, there can be selected for the toner and developer compositions mixtures of charge enhancing additives including mixtures of the aforementioned inner salts and second charge enhancing additives such as quaternary ammonium compounds.

Abstract: This invention is generally directed to electrostatographic carrier compositions comprised of a core, containing from about 0.004 weight percent to about 10 weight percent of a polymerized organoalkyoxysilane coating, wherein the monomers to be polymerized are selected from the group consisting of organoalkoxysilane monomers of the following formulas:R--Si--(OR.sub.1).sub.3,and ##STR1## wherein R.sub.1 is an alkyl group containing from about 1 to about 6 carbon atoms, and R, R.sub.2, and R.sub.3, are independently selected from the group consisting of alkyl groups, substituted alkyl groups, aromatic groups, and substituted aromatic groups. Developer compositions containing such carrier particles, and including therein toner resins, as well as methods of imaging utilizing such compositions are also embraced within the present invention.

Abstract: Disclosed in the present application are toner compositions comprised of resin particles, pigment particles, and a sulfate charge enhancing additive selected from the group consisting of distearyl dimethyl ammonium methyl sulfate, and behenyl trimethyl ammonium methyl sulfate.