Xerox Corporation

Robert A Nelson

Thomas R Hoffend

Robert J Gruber

Carol A Fox

Timothy J Fuller

Shadi L Malhotra

Thomas W Smith

Robert D Bayley

Michael K Georges

Kathleen M McGrane

Lupu Alexandru

William M Prest, Jr

Suresh K Ahuja

Raymond A Yourd, Iii

Paul D Szabo

William J Dale

James R Paxson

Water bottle holder/dispenser

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.

Unsaturated polyesters with vinyl side chains

A toner composition comprised of resin particles selected from the group consisting of a semicrystalline polyolefin and copolymers thereof which a melting point of from about 50.degree. C. to about 100.degree. C., and pigment particles.

Toner and developer compositions with semicrystalline polyolefin resins

A free radical suspension polymerization process for obtaining crosslinked styrene butadiene ternary copolymers which comprises the polymerization of styrene monomers, butadiene monomers, and crosslinking components in the presence of a surfactant, a stabilizer, and a first and second initiator; and wherein the aforementioned components are present in an aqueous phase; heating the resulting aqueous mixture at a temperature of from about 50.degree. C. to about 110.degree. C.; thereafter heating the mixture at a temperature of from about 110.degree. C. to about 150.degree. C.; followed by cooling and isolating the desired product.

Processes for the preparation of crosslinked copolymers

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

Toner compositions with release additives therein

A positively charged toner composition comprised of resin particles exhibiting a peak value molecular weight in each of the molecular weight regions of from about 5,000 to about 80,000, and from about 100,000 to about 2,000,000; a wax component with a weight average molecular weight of from about 500 to about 10,000; and a charge enhancing additive selected from the group consisting of alkyl pyridinium halides, organic sulfonates, organic sulfates, distearyl dimethyl ammonium methyl sulfate, behenyl trimethyl ammonium methyl sulfate, and distearyl methyl ethyl ammonium ethyl sulfate.

Positively charged toner compositions

This invention is directed to an improved positively charged toner composition comprised of (1) a styrene butadiene copolymer plasticizer blend, containing from about 92 percent by weight to about 97 percent by weight of styrene butadiene copolymer, and from about 3 percent by weight to about 8 percent by weight of plasticizer, the styrene butadiene copolymer having a weight average molecular weight of from about 45,000 to about 155,000, and a molecular weight distribution of about 7, the copolymer further containing from about 85 percent by weight of styrene to about 93 percent by weight of styrene, and from about 7 percent by weight of butadiene to about 15 percent by weight of butadiene, (2) pigment particles, and (3) a charge enhancing additive.

Styrene butadiene plasticizer toner composition blends

Dispersion polymerization process for producing colored toner particles comprising admixing a colorant with a monomer to form an oil soluble organic phase, admixing a polymerization initiator with the organic phase, admixing the organic phase with an aqueous phase containing a suspending agent and an inorganic salt therein under polymerization conditions to form a suspension, polymerizing the suspension under continuous agitation to provide polymer particles containing the colorant and having a particle size in the range of from about 1 micron to about 100 microns, and recovering the polymer particles. The inorganic salt inhibits polymerization in the aqueous phase. Developer compositions and processes for developing electrostatic latent images are also disclosed.

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Webster, NY, United States of America

Robert A Nelson