Abstract: A carrier comprised of a core and thereover a polymer generated from the reaction of a component containing amine groups and a component containing epoxy groups.

Abstract: A composition comprised of a core and thereover a polymer of (1) polystyrene/alkyl methacrylate/dialkylaminoethyl methacrylate, (2) polystyrene/alkyl methacrylate/alkyl hydrogen aminoethyl methacrylate, (3) polystyrene/alkyl acrylate/dialkylaminoethyl methacrylate, or (4) polystyrene/alkyl acrylate/alkyl hydrogen aminoethyl methacrylate.

Abstract: A carrier comprised of a core and a polymer coating of (1) styrene/monoalkylaminoalkyl methacrylate or (2) styrene/dialkylaminoalkyl methacrylate.

Abstract: A carrier comprised of a core and thereover a polymer of (1) methylmethacrylate and a monoalkyl aminoalkyl methacrylate, or (2) a polymer of methylmethacrylate and dialkylaminoalkyl methacrylate.

Abstract: A carrier comprised of a core and thereover a polymer of styrene, an olefin and a dialkylaminoalkyl methacrylate.

Abstract: A carrier comprised of a core and a polymer coating containing a quaternary ammonium salt functionality.

Abstract: A toner composition comprised of a polyester resin with hydrophobic end groups, colorant, optional wax, optional charge additive, and optional surface additives.

Abstract: A toner composition comprised of a polyester resin with hydrophobic end groups, pigment, optional wax, optional charge additive, and optional surface additives.

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: A solution polymerization process for producing an organic polymer from styrene and at least one other polymerizable monomer comprising providing a liquid reaction medium suitable for conducting said polymerization, wherein the reaction medium contains styrene and a polymerizable monomer other than styrene; and, anionically polymerizing styrene and monomer, thereby forming random copolymer chains, wherein the total quantity of said styrene used in said polymerization is at least 50% by weight based on the total weight of styrene and other polymerizable monomers used in the polymerization. A second embodiment comprises a copolymer made by the above-described method.

Abstract: A low fix temperature toner having improved blocking performance comprises colorant and toner resin. The toner resin comprises the reaction product of (1) a diacid, diester or anhydride, (2) a diol and (3) a vinyl monomer compound having separate polyester and vinyl polymer domains with separate T.sub.g 's.

Abstract: A process for the preparation of a crosslinked polyester which comprises the reaction of a diol or a mixture of diols and a diacid, a mixture of diacids or their diesters and a polyhydric alcohol monomer to provide a polyhydroxy functional polyester resin precursor, and subsequently reacting said polyhydroxy functional polyester precursor resin with a dianhydride or diepoxy functional crosslinking component.

Abstract: Modified unsaturated linear polymers have at least a first residue, a second residue and an acid residue. The first, second and acid residues correspond to a first, second and acid monomers used to prepare the polymers. The first monomer may be a diacid, anhydride, diacid ester or mixture thereof. The second monomer may be a diol or glycol. The acid monomer may be an aromatic dicarboxylic acid, different than the first monomer. The first residue is present in a concentration not less than about 7.5 mole % and the acid residue is present in a concentration ranging between 2.5 mole % and 12.5 mole %, based on the total mole monomer ratio of the polymer. The polymers have a glass transition temperature ranging from about 54.degree. C. to about 64.degree. C.

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: 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: An improved process for producing resin particles by a bead suspension polymerization reaction, and a polymer formed by the process wherein the process comprises: providing a liquid reaction medium suitable for conducting the polymerization; forming a suspension agent system in the reaction medium by an in situ interaction of at least two components in the reaction medium, for example, certain water soluble metal halides and polyvinylacetate derived polymers; adding at least one polymerizable monomer compound to the resulting reaction medium having the suspension agent system dispersed therein; and effecting polymerization of the monomer in the reaction medium to form low ash content beads of the polymer.

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.