摘要:
Disclosed is a heterophase ink composition comprised of a water insoluble polymer dispersed in a liquid medium, the polymer containing therein an oil soluble dye, and a nonionic stabilizer permanently attached thereto.
摘要:
A process for the preparation of liquid developer compositions containing dyed polymer particles with an average diameter of from about 2 to about 6 microns, which particles are dispersed in an oil base, charge control additives, and stabilizers thereby permitting image transfer efficiencies exceeding 80 percent, which comprises formulating polymer particles by dispersion polymerization in a mixture comprised of a first oil base solvent, and a second solvent with a higher volatility than said first solvent, and further containing an amphipathic steric stabilizer; thereafter dyeing the product resulting; followed by removal of the more volatile second solvent; and subsequently adding to the dyed product a charge control additive.
摘要:
An improved process for obtaining colored toner compositions by dispersion polymerization which comprises providing a monomer solution with stabilizer therein, polymerizing the resulting mixture, adding thereto a dye solution comprised of an organic solvent having dissolved therein oil soluble dyes, causing the dye solution to diffuse into the polymer particles, and subsequently separating the resulting toner particles, wherein the stabilizer is permanently attached to the toner polymer particles.
摘要:
Disclosed is an improved process for the preparation of polymer particles which comprises (1) providing a solvent medium having dispersed therein steric stabilizers, monomers, and initiator compounds; (2) subsequently adding thereto a crosslinking compound; (3) affecting polymerization of the resulting mixture by heating; and (4) thereafter separating the particles formed.
摘要:
Disclosed is a dispersion polymerization process for affecting the preparation of particles which comprises dissolving in a suitable solvent a mixture of at least two first monomer components including at least one second monomer having covalently attached thereto a dye moiety, subsequently adding to the reaction mixture a polymerization initiator, thereafter affecting polymerization of the reaction mixture by heating, and separating the product particles therefrom.
摘要:
Disclosed is an improved toner composition comprised of colored dyes and resin particles, having irreversibly anchored thereto stabilizer generated by the reaction of a stabilizer selected from the group consisting of hydroxy celluloses, poly(acrylic acids), poly(vinyl butyral), and poly(vinyl pyridines), with an alkyl halide, an alcohol, or a carboxylic acid.
摘要:
Dry monodispersed polymeric particles, a stabilized dispersion of such and a method for making are described. The dispersion comprises a polar dispersion medium having dispersed therein monodispersed particles comprising a thermoplastic resin core substantially insoluble in the dispersion medium formed from a styrene or butylmethacrylate containing monomer or mixtures thereof and having irreversibly anchored thereto, a nonionic amphipathic steric stabilizer comprising a graft copolymer having a portion formed from a styrene or butylmethacrylate containing monomer or mixture thereof and a portion formed from hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxybutyl methyl cellulose, hydroxypropyl methyl cellulose, ethyl cellulose or cellulose propionate. The stable dispersion is made by dissolving the nonionic cellulose ether in the polar dispersion medium and in the presence of a free radical initiator adding styrene or butylmethacrylate containing monomer a mixture thereof thereto, and permitting polymerization to take place.
摘要:
The present inventive concepts provide metal etchant compositions and methods of fabricating a semiconductor device using the same. The metal etchant composition includes an organic peroxide in a range of about 0.1 wt % to about 20 wt %, an organic acid in a range of about 0.1 wt % to about 70 wt %, and an alcohol-based solvent in a range of about 10 wt % to about 99.8 wt %. The metal etchant composition may be used in an anhydrous system.
摘要:
The invention provides polymers, methods of preparing polymers, and compositions that include polymers, wherein said polymers include a plurality of two-carbon repeating units in a polymer chain, wherein one or more of the two-carbon repeating units of the polymer chain have a substituent that is covalently bonded to a semifluorinated alkyl ethoxy moiety, and the semifluorinated alkyl ethoxy moiety is attached to the polymer chain substituent through an ester, amide, ketone, carbamate, amine, or other suitable linking group. The polymers can be used to provide antifouling coatings.
摘要:
The invention provides novel polymers, including triblock polymers, as well as methods of preparing the polymers, and compositions that include such polymers. The polymers can include at least three blocks, the first block that includes poly(styrene), the second block that includes a random arrangement of poly(ethylene) and poly(butylene), and a third block that includes functionalized poly(isoprene). Units of the functionalized poly(isoprene) block can include hydroxyl groups and one or more ether linked side chains comprising R1, R2, R3, R4, R5, R6, as defined herein, or a combination thereof. The polymers can be used to provide antifouling coatings, for example, for marine ship hulls.