摘要:
Disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a binder, and a propellant selected from the group consisting of hydrazine; cyclic amines; ureas; carboxylic acids; sulfonic acids; aldehydes; ketones; hydrocarbons; esters; phenols; amides; imides; halocarbons; urethanes; ethers; sulfones; sulfamides; sulfonamindes; phosphites; phosphonates; phosphates; alkyl sulfines; alkyl acetates; and sulfur dioxide. Also disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a propellant, and a binder selected from the group consisting of rosin esters; polyamides; dimer acid amides; fatty acid amides; epoxy resins; fluid paraffin waxes; fluid microcrystalline waxes; Fischer-Tropsch waxes; polyvinyl alcohol resins; polyols; cellulose esters; cellulose ethers; polyvinyl pyridine resins; fatty acids; fatty acid esters; poly sulfonamides; benzoate esters; long chain alcohols; phthalate plasticizers; citrate plasticizers; maleate plasticizers; sulfones; polyvinyl pyrrolidinone copolymers; polyvinyl pyrrolidone/polyvinyl acetate copolymers; novalac resins; natural product waxes; mixtures of linear primary alcohols and linear long chain amides; and mixtures of linear primary alcohols and fatty acid amides. In one embodiment, the binder comprises a liquid crystalline material.
摘要:
Disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a binder, and a propellant selected from the group consisting of hydrazine; cyclic amines; ureas; carboxylic acids; sulfonic acids; aldehydes; ketones; hydrocarbons; esters; phenols; amides; imides; halocarbons; urethanes; ethers; sulfones; sulfamides; sulfonamides; phosphites; phosphonates; phosphates; alkyl sulfides; alkyl acetates; and sulfur dioxide. Also disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a propellant, and a binder selected from the group consisting of rosin esters; polyamides; dimer acid amides; fatty acid amides; epoxy resins; fluid paraffin waxes; fluid microcrystalline waxes; Fischer-Tropsch waxes; polyvinyl alcohol resins; polyols; cellulose esters; cellulose ethers; polyvinyl pyridine resins; fatty acids; fatty acid esters; poly sulfonamides; benzoate esters; long chain alcohols; phthalate plasticizers; citrate plasticizers; maleate plasticizers; sulfones; polyvinyl pyrrolidinone copolymers; polyvinyl pyrrolidone/polyvinyl acetate copolymers; novalac resins; natural product waxes; mixtures of linear primary alcohols and linear long chain amides; and mixtures of linear primary alcohols and fatty acid amides. In one embodiment, the binder comprises a liquid crystalline material.
摘要:
A layered photoresponsive imaging member comprised of a photogenerating layer, and in contact therewith a hole transporting layer comprised of fluorene charge transport polyesters of the following formulas: ##STR1## where A, B, Z are independently selected from a group of bifunctional groups; R is an alkyl or aryl group; Ar is an aryl or substituted aryl group; x and y are mole fractional numbers wherein x is greater than 0, and the sum of x and y is equal to 1.0; and n represents the number of repeating segments.
摘要:
Disclosed is an improved toner composition comprised of pigment particles and amorphous ternary copolycarbonate resin particles of the formula ##STR1## wherein R is an aliphatic hydrocarbon, n is a number of from about 4 to about 8, x is a number of from about 0.8 to about 0.95, y is a number of from about 0.05 to about 2, z represents the degree of polymerization, Ar.sub.1 is an aromatic substituent, and Ar.sub.2 is an aromatic substituent.
摘要:
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.A second embodiment comprises conducting a bead suspension polymerization process utilizing the suspension agent system formed in situ to limit the amount of fine particles of less than about 100 microns produced during the process comprising: providing a reaction medium suitable for conducting the polymerization in the reaction system; utilizing a suspension agent system which is appropriate for forming polymer beads having a desired size and for minimizing fine particle formation; adding at least one polymerizable monomer compound to the resulting reaction medium having the suspension agent system dispersed therein; effecting polymerization of the monomer in the reaction medium to form the beads of the polymer; and separating resin particles from the reaction followed by optional washing and drying.
摘要:
A process for forming a copolymer of styrene and butadiene is disclosed including providing an aqueous phase comprising an aqueous mixture comprising water, styrene monomer, butadiene monomer, a suspension stabilizing agent, and a chain propogating amount of one or more free radical polymerization initiators, the ratio of the styrene monomer and the butadiene monomer being between about 80:20 and about 95:5 by weight, the weight proportion of water to the combination of styrene monomer and butadiene monomer being between about 0.8:1 and about 2:1 and a vapor phase comprising an inert gas and butadiene monomer, heating the aqueous phase and the vapor phase to a temperature between about 50.degree. C. and about 130.degree. C. at a pressure between about 20 psi and about 140 psi, removing butadiene monomer from the vapor phase after at least about 75 percent by weight of the butadiene monomer and the styrene monomer in the aqueous phase are converted to a copolymer and prior to conversion of more than about 98 percent by weight of the butadiene monomer and the styrene monomer to a copolymer in the aqueous phase, and heating the aqueous phase at a temperature between about 50.degree. C. and about 130.degree. C. at a pressure between about 20 psi and about 140 psi until at least about 90 percent by weight of the styrene monomer and butadiene monomer are copolymerized to form an aqueous suspension of discrete copolymer particles.
摘要:
Thermotropic liquid crystalline polymers represented by the formulas as illustrated in FIGS. 1 and 2 wherein m, n, and o represent the number of monomer segments present; and x, y, and z are independently selected from the group consisting of alkyl, substituted alkyl, alkylene, and substituted alkylene.
摘要:
A toner composition comprised of resin particles and polymeric dye components of the following formula: ##STR1## wherein A is selected from the group consisting of alkylene and arylene; B is selected from the group consisting of ##STR2## wherein R is selected from the group consisting of an alkylene group, an arylene group and a polyether group; and n represents a number of from 2 to about 100.
摘要:
A process for the purification of polycarbonates or copolymers thereof containing titanium catalyst residues, which comprises mixing a polycarbonate or copolymers thereof with a solvent; adding to the formed solution mixture a complexing component; admixing the resulting mixture with water; and subsequently separating the polycarbonate or copolymer product therefrom.