摘要:
Methods are provided for preparing reactive silane ester compounds, such as aromatic reactive silane ester compounds. The methods include providing a carboxylic acid-containing starting material, reacting the carboxylic acid-containing starting material with a base to form a salt, and reacting the salt with a halo-alkylene-silane to form a reactive silane ester compound. Compositions prepared by these methods, protective layers that include hydrolysis and condensation products of such compositions, electrophotographic photoreceptors that include such protective layers, and image forming apparatus that include such electrophotographic photoreceptors are also provided.
摘要:
Exemplary embodiments provide compositions for erasable media and methods of forming polymers for erasable media. The method can include providing a first monomer, the first monomer including one or more alkoxylated bisphenols and adding at least one second monomer and a catalyst to the first monomer to form a mixture at a first temperature, the second monomer selected from the group consisting of an organic diacid, a dialkyl ester of the organic diacid, and combinations thereof. The method can also include melt condensing the mixture by increasing the temperature from the first temperature to a second temperature over a first amount of time to form one or more polymers, wherein the one or more polymers has an acid value in the range of about 0.1 mg-KOH to about 12 mg-KOH.
摘要:
A process comprising for example reacting a substituted or unsubstituted arylamine or a mixture thereof with a Vilsmeier reagent in a solvent system comprising acetonitrile as a sole solvent or a solvent system comprising acetonitrile and one or more solvents selected from toluene, xylene, chlorobenzene, dichlorobenzene, dichloromethane, 1,2-dichloroethane, or a combination thereof.
摘要:
Exemplary embodiments provide compositions for erasable media and methods of forming polymers for erasable media. The method can include providing a first monomer, the first monomer including one or more alkoxylated bisphenols and adding at least one second monomer and a catalyst to the first monomer to form a mixture at a first temperature, the second monomer selected from the group consisting of an organic diacid, a dialkyl ester of the organic diacid, and combinations thereof. The method can also include melt condensing the mixture by increasing the temperature from the first temperature to a second temperature over a first amount of time to form one or more polymers, wherein the one or more polymers has an acid value in the range of about 0.1 mg-KOH to about 12 mg-KOH.
摘要:
A process including reacting a substituted or unsubstituted arylamine or a mixture thereof with a Vilsmeier reagent in the presence of a weakly polar liquid.
摘要:
A process for preparing a high sensitivity titanyl phthalocyanine (TiOPc) pigment includes dissolving a Type I TiOPc in a suitable solvent, precipitating an intermediate TiOPc pigment by quenching the solution comprising the dissolved Type I TiOPc in a solvent system comprising an alcohol and alkylene chloride such as, for example, methylene chloride, and treating the intermediate TiOPc pigment with monochlorobenzene. The resultant TiOPc pigment, which is designated as a Type V TiOPc, is suitable for use as a charge generating material in a photoreceptor of an imaging device.