摘要:
A process for the preparation of polymers which comprises dissolving an emulsifier in a solvent, followed by heating the mixture formed; adding to the mixture an alkali persulfate initiator dissolved in a solvent; subsequently adding monomer thereto, which monomer is not miscible with said solvent, and wherein the monomer is added after a period of time of from about 1 second to about 60 minutes has elapsed after the addition of said dissolved initiator; and thereafter effecting polymerization.
摘要:
Disclosed is a liquid developer composition comprising a liquid vehicle, a charge control additive, and toner particles containing pigment particles and a resin selected from the group consisting of polyolefins, halogenated polyolefins, and mixtures thereof. Preferred resins include poly-.alpha.-olefins and chlorinated polypropylenes. The resin is soluble in the liquid vehicle at elevated temperatures and insoluble in the liquid vehicle at ambient temperatures. Also disclosed is a liquid developer composition comprising a liquid vehicle, pigment particles, a charge control additive, and a resin selected from the group consisting of polyolefins, halogenated polyolefins, and mixtures thereof, wherein the resin is soluble in the liquid vehicle at elevated temperatures and insoluble in the liquid vehicle at ambient temperatures, and wherein the liquid developer is prepared by dissolving the resin in the liquid vehicle at temperatures of from about 80.degree. C. to about 120.degree. C., subsequently adding the pigment particles to the resulting solution, attriting the resulting mixture for from about 20 minutes to about 75 minutes, cooling the mixture to ambient temperature over a period of from about 1 hour to about 3 hours with continuous mixing, and subsequently adding to the mixture the charge control additive.
摘要:
An electrophotographic imaging member includes a substrate, a photogenerating layer, and an optional overcoating layer, where the photogenerating layer includes a chemically functionalized carbon nanotube material.
摘要:
Nano-sized phthalocyanine pigment particles include a phthalocyanine chromogen structure as the main component, and a substituted soluble metal-phthalocyanine dye as a minor component that is associated non-covalently with the phthalocyanine chromogen structure, wherein the presence of one or more sterically bulky substituents on the substituted soluble metal-phthalocyanine dye limits an extent of pigment particle growth and aggregation, to afford nano-sized pigment particles.
摘要:
Disclosed is a compound of the formula and dimers thereof, wherein R, R′, X, (Y)m, and (Z)n are as defined herein. The compounds are useful as colorants, particularly in applications such as phase change inks.
摘要:
Disclosed is a compound of the formula and dimers thereof, wherein R, R′, X, (Y)m, and (Z)n are as defined herein. The compounds are useful as colorants, particularly in applications such as phase change inks.
摘要:
Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R2, X and Z are as described herein.
摘要:
Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R′, X, (Y)m; and (Z)n are as defined herein.