摘要:
The present invention relates to a process for dewatering a slurry comprising microfibrillated cellulose wherein the process comprises the following steps of, providing a slurry comprising microfibrillated cellulose and liquid, subjecting the slurry to an electric field inducing the liquid of the slurry to flow and separating the liquid from the microfibrillated cellulose. The invention also relates to microfibrillated cellulose dewatered according to the process.
摘要:
Improved charge transport material comprises the formula: where M comprises a metallocenyl group; Y comprises a functional group selected from the group consisting of a metallocenyl group, a hydrazone group, an azine group, a reactive ring group, an ethylenically unsaturated group, and combinations thereof; R1 and R2 comprise, each independently, H, an organic group, or an organometallic group; and X is a bond, O, S, an aminylene group, a sulfonyl group, an organic linking group, or a combination thereof.
摘要翻译:改进的电荷传输材料包括下式:其中M包括金属茂基; Y包括选自茂金属基,腙基,吖嗪基,反应性环基,烯属不饱和基团及其组合的官能团; R 1和R 2各自独立地包含H,有机基团或有机金属基团; 并且X为键,O,S,亚氨基,磺酰基,有机连接基或其组合。
摘要:
An improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where X comprises a linking group; R1 and R1′ comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic group; and R2, R3, R2′, and R3′ comprise, each independently, an arylamine group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, imaging methods, and methods of forming the charge transport material are described.
摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport compound having the formula where R1 and R2 are, independently, hydrogen, an alkyl group, an alkaryl group or an aryl group; X is an aromatic group; Y is an (N,N-disubstituted)arylamine; Z is (CH2)m group where m is an integer between 0 and 30 where one or more of the methylene groups is optionally replaced by O, S, C═O, O═C—O, O═C—NR3, sulfoxide, sulfate, phosphate, an aryl group, urethane, urea, NR4 group, CHR5 group, or CR6R7 group where R3, R4, R5, R6, and R7 are, independently, H, hydroxyl, thiol, an amine group, an alkyl group, an alkaryl group, a heterocyclic group, or an aryl group, and E is a bond, O, S, C═O, NR8, CR9R10 group, a hetrocyclic group, or an aromatic group where R8, R9, and R10 are, independently, H, an alkyl group, an alkaryl group, or an aryl group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.
摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where Ar comprises an aromatic group; X comprises a bond or a linking group; and R1, R2, R3, R4, and R5 comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, a heterocyclic group, or a part of a ring group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.
摘要:
A photoreceptor with good mechanical and physical properties is provided with an overcoat layer comprising a copolymer of an α,β-ethylenically unsaturated carboxylic acid and an α,β-ethylenically unsaturated monomer wherein the weight percent of the α,β-ethylenically unsaturated carboxylic-acid is at least 25% up to 99% of the copolymer. The copolymer may comprise an α,β-ethylenically unsaturated carboxylic acid and an α,β-ethylenically unsaturated monomer wherein the copolymer has an acid value of at least 150 mg KOH/g the copolymer. The copolymer may be present in a blend with a second polymer or copolymer comprised of units derived from a second α,β-ethylenically unsaturated monomer that is different from the an α,β-ethylenically unsaturated carboxylic acid and/or the α,β-ethylenically unsaturated monomer. The copolymer or the copolymer blend may be present in a layer that is crosslinked or crosslinkable, the crosslinking being effected through a distinct crosslinking agent that reacts with group(s) on the an α,β-ethylenically unsaturated carboxylic acid or the α,β-ethylenically unsaturated monomer.
摘要:
The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: —providing a slurry comprising cellulose and liquid, —subjecting the slurry to an electric field inducing the liquid of the slurry to flow, —separating the liquid from the cellulose thus obtaining a liquid depleted slurry, —adding a washing liquid, such as an organic solvent, to the liquid depleted slurry—subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and—separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.
摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where Ar is an aryl group; X comprises a bond or a linking group; R1, R2, and R3 each comprise H, a carboxyl, an amino group, a halogen, an alkyl group, an acyl group, an alkoxy group, an alkylsulfanyl group, an alkenyl group, an alkynyl group, a heterocyclic group, an aromatic group, or a part of a ring group; R4 comprises H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic group; and R5, R6, R7, and R8 each comprise an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, a heterocyclic group, or a part of a ring group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.
摘要翻译:改进的有机光感受器包括在导电衬底上的导电衬底和光电导元件,光电导元件包括:(a)具有下式的电荷传输材料其中Ar是芳基; X包含键或连接基团; R 1,R 2,R 3和R 3各自包含H,羧基,氨基,卤素,烷基,酰基 烷氧基,烷基硫烷基,烯基,炔基,杂环基,芳族基或环基的一部分; R 4包括H,烷基,烯基,炔基,芳基或杂环基; R 5,R 6,R 7和R 8各自包含烷基,链烯基 ,炔基,芳基,杂环基或环基的一部分; 和(b)电荷产生化合物。 描述相应的电子照相设备和成像方法。
摘要:
Improved charge transport material comprises the formula: where M comprises a metallocenyl group; Y comprises a functional group selected from the group consisting of a metallocenyl group, a hydrazone group, an azine group, a reactive ring group, an ethylenically unsaturated group, and combinations thereof; R1 and R2 comprise, each independently, H, an organic group, or an organometallic group; and X is a bond, O, S, an aminylene group, a sulfonyl group, an organic linking group, or a combination thereof.
摘要翻译:改进的电荷传输材料包括下式:其中M包括金属茂基; Y包括选自茂金属基,腙基,吖嗪基,反应性环基,烯属不饱和基团及其组合的官能团; R 1和R 2各自独立地包含H,有机基团或有机金属基团; 并且X为键,O,S,亚氨基,磺酰基,有机连接基或其组合。
摘要:
Improved charge transport materials having the formula: where R1, R2, R3, R4, R5, and R6 comprise, each independently, H or an organic group; and Y comprises an aromatic group, such as an aryl group and an aromatic heterocyclic group. The methods of using the charge transport materials in organophotoreceptors, electrophotographic imaging apparatuses, and electrophotographic imaging processes are also described.
摘要翻译:具有下式的改进的电荷传输材料:其中R 1,R 2,R 3,R 4,R R 5和R 6各自独立地包含H或有机基团; Y包括芳基,例如芳基和芳族杂环基。 还描述了在有机光感受器,电子照相成像设备和电子照相成像过程中使用电荷传输材料的方法。