Abstract: A process for fusing a toner image to a substrate includes applying to a fuser member a replenishable layer containing a controlled amount of a wicking agent; the fuser member surface sites reactive to binding with Si--H functional groups included in an organopolysiloxane. The wicking agent have an organopolysiloxane having Si--H functional groups and at least about 1.times.10.sup.-6 weight percent of a metal compound that is effective for promoting reaction between the reactive sites on the fuser member surface and the Si--H functional groups of the organopolysiloxane. The toner image is contacted with a substrate at a temperature sufficient to fuse the toner image to the substrate.

Abstract: This invention provides a release agent consisting of a blend of poly(organosiloxane) fluid and phenol-functionalized poly(organosiloxane) fluid which when used at elevated temperatures does not produce insoluable or undesirable by-products or gellation. The release agent is particularly suited for application to a fuser member for fusing toner images to a receiver.

Abstract: Toner fusing members having a surface layer comprising a substrate coated with a fluorocarbon-silicone polymeric composition are obtained by concurrently curing a fluorocarbon copolymer, a nucleophilic fluorocarbon-curing agent and a heat-curable polyfunctional polymethylsiloxane polymer.

Abstract: Toner fusing rolls having an oil barrier layer composed of a substrate coated with a fluorocarbon-silicone polymeric composition which is obtained by concurrently curing a fluorocarbon copolymer, a nucleophilic fluorocarbon-curing agent and a heat-curable polyfunctional poly(C.sub.1-6 alkyl)phenylsiloxane polymer.

Abstract: Toner fusing members coated with cured epoxy-substituted organopolysiloxane compositions are obtained. Such epoxy-substituted organopolysiloxanes are obtained by hydride-addition of a hydride-substituted organopolysiloxane with an unsaturated epoxy compound.

Abstract: Toner fusing members coated with melamine-cured phenolic polysfloxanes compositions are obtained. Such a phenolic polysiloxane is obtained by hydride-addition of a hydride-substituted polysiloxane with an alkenyl substituted phenol.

Abstract: Toner fusing members with improved properties are formed with an outer layer comprising a melamine-cured block polyurethane coating composition. Such a (A-B).sub.n' block polyurethane is formed by polycondensation of a diisocyanate, an organopolysiloxane diol and a C.sub.2-20 diol.

Abstract: A green bead composite for the manufacture of magnetic carrier particles for electrophotography is disclosed. The composite comprises a synthetic polyester or polyurethane as the binder for metal oxide and other metal salt particles. The dried, nonmagnetic green beads are prepared by a spray-drying process. The green beads so prepared are suitable for the production of magnetic carrier particles for electrophotographic development.

Abstract: Toner fusing rolls with improved properties are formed with an outer layer comprising an addition-cured silicone elastomer. Such as elastomer is formed by crosslinking hydride substituted organopolysiloxanes and polyimides substituted with unsaturated hydrocarbon radicals.

Abstract: Toner fusing members with improved properties are formed with an outer layer comprising a melamine-cured polyurethane coating composition. Such a polyurethane is formed by polycondensation of a diisocyanate, and a polysiloxane diol containing units of 2,2-bis(4-hydroxyphenyl) hexafluoropropane.

Abstract: Toner fusing members coated with melamine-cured polyester-amide compositions are obtained wherein the polyester-amide component is a copolymer of one or more organic dicarboxylic acids with 2,2-bis(4-hydroxyphenyl)hexafluoropropane and an aminoalkyl-terminated organopolysiloxane.

Abstract: A dry toner image is embedded in a thermoplastic layer on a receiving sheet by pressing a ferrotyping web against the image in the presence of sufficient heat to soften the layer. Preferably, the layer is preheated and the web and image are pressed together by a pair of hard rollers to a pressure in excess of 100 pounds per square inch.A curl preventing layer opposite thermoplastic layer does not offset on a backing roller because it has a melting point above the temperature of the process.

Abstract: A negative-working photoresist composition comprising, in admixture, (a) dye-loaded or dye-precursor-loaded polymeric particles individually covered with a layer of gelatin that is covalently bonded thereto and (b) a radiation-sensitive dichromate is useful in the preparation of continuous tone dyed imaging elements such as color filter arrays for use in solid state color image sensing devices.

Abstract: A device for fusing and fixing electrophotographic toner powder to a receiver sheet and a method for using the same. The device comprises a first fusing member, such as a fusing roll, having a resilient surface for pressure contact with thermoplastic toner on the receiver sheet. A second member, which can be a non-resilient pressure roll, presses the toner into contact with the resilient surface. The device also is designed to heat the toner. The fusing member has a layer of an elastomeric, amorphous silarylene-siloxane alternating or random copolymer which is thermally stable, has good wear resistance, and good thermal conductivity and exhibits little or no swelling when contacted with poly(dimethylsiloxane) release oils.

Abstract: Novel polycarbonate latex compositions comprising 0.1 to 30 mole percent of recurring units containing a carboxyl or a tertiary amine acid addition salt component are disclosed.The latex compositions are made by:(a) preparing a polycarbonate comprising from about 0.1 to 30 mole percent of recurring units having a carboxyl or a tertiary amine acid additon component;(b) dissolving the polycarbonate in a water miscible solvent having a boiling point below about 100.degree. C.;(c) blending the solution of (b) with water; and(d) removing the water-miscible solvent.

Abstract: Novel polycarbonate latex compositions comprising 0.1 to 30 mole percent of recurring units containing a carboxyl or a tertiary amine acid addition salt component are disclosed.The latex compositions are made by:(a) preparing a polycarbonate comprising from about 0.1 to 30 mole percent of recurring units having a carboxyl or a tertiary amine acid addition component;(b) dissolving the polycarbonate in a water miscible solvent having a boiling point below about 100.degree. C.;(c) blending the solution of (b) with water; and(d) removing the water-miscible solvent.

Abstract: Improved fluorescent labels comprise a fluorescent rare earth chelate incorporated into a polymeric particle derived from a loadable latex. The polymer comprises: (a) from about 50 to about 96 weight percent of recurring units derived from a hydrophobic ethylenically unsaturated polymerizable monomer, (b) from about 2 to about 30 weight percent of recurring units derived from a nonionic hydrophilic ethylenically unsaturated polymerizable monomer, and (c) from about 2 to about 20 weight percent of recurring units derived from an anionic ethylenically unsaturated polymerizable monomer containing at least one solubilizing group. The labels of this invention have greatly improved stability in aqueous solutions and do not prematurely agglomerate during storage. They can be attached to any of a variety of physiologically reactive species to provide labeled species, and are particularly useful in specific binding assays.

Abstract: Herein are disclosed polyurethane elastomers comprising a charge-control agent of the formula: ##STR1## The elastomers are useful in making shaped articles.

Abstract: Novel polycarbonate latex compositions comprising 0.1 to 30 mole percent of recurring units containing a carboxyl or a tertiary amine acid addition salt component are disclosed.The latex compositions are made by:(a) preparing a polycarbonate comprising from about 0.1 to 30 mole percent of recurring units having a carboxyl or a tertiary amine acid addition component;(b) dissolving the polycarbonate in a water miscible solvent having a boiling point below about 100.degree. C.;(c) blending the solution of (b) with water; and(d) removing the water-miscible solvent.

Abstract: Improved fluorescent labels comprise a fluorescent rare earth chelate incorporated into a polymeric particle derived from a loadable latex. The polymer comprises: (a) from about 50 to about 96 weight percent of recurring units derived from a hydrophobic ethylenically unsaturated polymerizable monomer, (b) from about 2 to about 30 weight percent of recurring units derived from a nonionic hydrophilic ethylenically unsaturated polymerizable monomer, and (c) from about 2 to about 20 weight percent of recurring units derived from an anionic ethylenically unsaturated polymerizable monomer containing at least one solubilizing group. The labels of this invention have greatly improved stability in aqueous solutions and do not prematurely agglomerate during storage. They can be attached to any of a variety of physiologically reactive species to provide labeled species, and are particularly useful in specific binding assays.