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WO/2000/049466A1 |
An image forming apparatus having a photosensitive drum, such as a copier, a facsimile device, a laser printer, an electrophotography printer comprising LEDs, or a word processor. A silencer formed of pellets for molding a vibration-damp...
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WO/2000/045225A1 |
Charge transport layers comprise a hydrazone charge transport compound, savinyl yellow and an antioxidant. Dual layer photoconductors comprise the charge transport layer in combination with a substrate and a charge generation layer.
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WO/2000/037529A1 |
A polyester carbonate copolymer resin having a number-average molecular weight (Mn) of 10,000 to 700,000 which is obtained by copolymerizing (D) 99.9 to 90 wt.% polyester carbonate with (E) 0.1 to 10 wt.% monomer having a double bond cap...
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WO/2000/026727A1 |
The invention described in the specification provides an improved coating for an electrophotographic photoconductor printing system. In particular, a blend of polycarbonate-A and polycarbonate-Z binders according to formula (I), wherein ...
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WO/2000/023525A1 |
Azo compounds represented by formula (I), which are diamide type azo compounds derived from 2-hydroxynaphthalene-3,6-dicarboxylic acid and in which at least one of the amides is aliphatic. Various uses of the compounds are also provided.
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WO/2000/023446A1 |
The invention relates to core-extended perylene bisimides of formula (I) and (II), wherein R?1¿ and R?2¿ independently represent unsubstituted or substituted C¿1?-C¿24?alkyl, C¿1?-C¿24?cycloalkyl or C¿6?-C¿10?aryl and A?1¿ and A...
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WO/2000/022483A1 |
An organic photoreceptor that includes: (a) a charge transport compound having formula (1), where n is an integer between 2 and 6, inclusive; R?1¿ and R?2¿, independently, are an alkyl group, a cycloalkyl group, or an aryl group, or R?...
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WO/2000/021690A1 |
The invention describes techniques for the electrostatic printing of functional materials configured as liquid toners (50) on glass substrates (26) in a non-contact mode. The toners are patterned by a sensitized electrostatic printing pl...
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WO/2000/009343A1 |
An electrostatic gravure printing method wherein use is made of paper with a water content of 4-6 % and a surface resistivity of 1.0x10?9¿-9.0x10?9¿ $g(V)/$m(c) under the environment of 23±1 °C and 50±2 % RH. This method can thus li...
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WO/2000/005628A1 |
Charge generation layers for photoconductors comprise a binder and a charge generation compound, wherein the binder comprises a blend of polyvinylbutyral polymer and at least one resin which improves at least one electrical characteristi...
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WO/2000/002093A1 |
An inorganic polysilazane(perhydropolysilazane), which upon burning in the air at 400 to 1,000 °C gives a high-purity dense silica (SiO¿2?) film excellent in electrical insulating properties, hardness, chemical corrosion resistance, an...
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WO/1999/064930A1 |
The invention relates to coating solutions, methods for producing a printing plate using these coating solutions, and printing plates produced in this manner. In particular, the invention relates to printing plates whose photosensitive l...
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WO/1999/062445A1 |
Electrographic recording elements suitable use as wallcoverings are disclosed. The element contains, in order: (a) a backside conductive layer; (b) a base; (c) a frontside conductive layer; and (d) a dielectric layer. The element has a w...
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WO/1999/056181A1 |
Photoconductors comprise a substrate, a charge transport layer and a charge generation layer, wherein the charge transport layer comprises binder and a first charge transport compound and the charge generation layer comprises binder, a c...
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WO/1999/056180A1 |
Methods of making a charge generation layer comprise premixing a charge generation compound, a charge transport compound and solvent to form a premix essentially free of polymeric binder, mixing the premix with at least one polymeric bin...
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WO/1999/048954A1 |
A biaxially oriented polyester film characterized by containing 0.0001 to 0.03 wt.% of fine silicone resin particles A which have an average particle diameter of 0.8 to 2.0 $g(m)m and at least 80 wt.% of which are made up of units repres...
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WO/1999/047586A1 |
The invention relates to a process for the production of spherical, polyester particles, wherein the particle size can be exactly adjusted in the range of 1 to 200 $g(m)m and a particle size distribution with a span (=d90-d10/d50)$m(F)1....
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WO/1999/045074A1 |
There is disclosed a crystalline form of a titanyl phthalocyanine characterised by having an XRD pattern showing a maximum peak at a Bragg angle (2$g(u)±0.2°) of about 27.3° and further diffraction peaks in decreasing order of intensi...
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WO/1999/045595A2 |
The invention relates to a device for detecting electromagnetic radiation, characterised in that it has i) a photoactive layer consisting of a semiconductor with a band gap of over 2.5 eV, ii) a dye which is applied to the semiconductor ...
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WO/1999/041643A1 |
Photoconductors comprise a substrate, a charge transport layer, and a charge generation layer. The charge transport layer comprises binder and a charge transport compound comprising at least one of a hydrazone, aromatic amine, or substit...
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WO/1999/032537A1 |
There is described a polymeric material comprising at least one repeat unit, the or each (if more than one) repeat unit consisting substantially of a moiety of Formula (1) in which: Y?1¿ represents, independently if in different repeat ...
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WO/1999/023096A1 |
Disclosed are compounds of Formula (I) as shown in Fig 1(b), wherein: M is selected from: a metal atom; a metal compound; 2H whereby one H is bonded to each of the two nitrogen atoms depicted as being bonded to M (positions 29 and 31 sho...
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WO/1999/020596A1 |
An organic electroluminescent device having high efficiency and long lifetime, which contains a specific amine represented by general formula (1) as the hole transport material or the luminescent material, wherein R¿1? to R¿20? are eac...
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WO/1999/001798A1 |
An electrophotographic photoreceptor comprising a conductive support and a thin organic film formed thereon, wherein the organic film contains a compound represented by general formula (1): (wherein R?1¿ is a noncyclic or cyclic saturat...
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WO/1998/059261A1 |
Filmless photon imaging sensor plates (20) which are particularly effective in medical radiology and industrial applications including, but not limited to high resolution mammography. The sensor plates (20) provide rapid production of hi...
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WO/1998/056513A1 |
A process for making a two-component plasma-deposited photo-oxidizable organosilicon film on a substrate from a silicon donor and an organic precursor. Subjecting selected areas of the film to photo-oxidation allows selective etching of ...
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WO/1998/045760A2 |
This invention discloses novel surface release layers on temporary image receptors particularly suited to the requirements of liquid electrographic (both electrophotographic and electrostatic) printing on a variety of receptors. The inve...
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WO/1998/045761A1 |
The invention is textured surface release layers for dielectric substrates used in liquid electrostatic imaging processes. The invention also includes means of providing textured release surfaces for dielectric substrates, and a method o...
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WO/1998/044391A1 |
The invention is textured surface release layers for photoreceptors used in liquid electrophotography. The release surface is preferably directionally textured in the image processing direction. The invention also includes means of provi...
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WO/1998/041580A1 |
A novel condensed azo compound obtained by using 2-hydroxynaphthalene-3,6-dicarboxylic acid, amide, or bisamide of its ester as a coupler. It is excellent in water, chemical, solvent and heat resistances, etc.
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WO/1998/040793A1 |
A method of processing a photoconductor comprising: providing a photoconductor having a base layer and a photoconductive layer; bending the photoconductor with the photoconductive layer facing outward without subjecting the photoconducto...
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WO/1998/038551A1 |
An electrophotographic photoreceptor comprising a conductive base and formed thereon a single photosensitive layer containing a stilbene derivative (hole-transporting agent) represented by general formula (1) and an electron-transporting...
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WO/1998/037964A1 |
Composites which include a polymer having natural free volume therein and an inorganic or organic material disposed in the natural free volume of the polymer are disclosed. In addition, methods for making a composite are described. A pol...
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WO/1998/037120A1 |
A polycarbonate comprising repeating units (1) represented by general formula (1), a polycarbonate molding produced by molding the polycarbonate, and an electrophotographic photoreceptor having a photosensitive layer which has a surface ...
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WO/1998/032799A1 |
Perylene-3,4:9,10-tetracarboxylic acid imides of general formula (I), including their optical antipodes and their mixtures, in particular their racemates, wherein R?1� to R?14� are identical or different and are hydrogen or a radical...
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WO/1998/026879A1 |
A method for forming electrographic imaging elements (10) comprising a uniform dielectric layer (16) is disclosed. The method comprises coating a conductive coating composition containing polymerizable precursors onto a base (12), curing...
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WO/1998/024002A1 |
A method of protecting an electrostatic image on a substrate, wherein, an electrostatic image is formed on the substrate, and protected by applying an amphipathic liquid toner on the electrostatic image by electrostatic means, and fixing...
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WO/1998/017728A1 |
Novel bisazo compounds prepared by coupling a 2-hydroxynaphthalene-3,6-dicarboxylic acid derivative with a compound having two diazo groups in the molecule at a mole ratio of 2:1; and a process for the preparation thereof. The compounds ...
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WO/1998/015875A1 |
To form a high-resolution highly stable image by using an image forming technique including gray scale expression. On the assumption that the image is formed by an electrophotography process including gray scale expression, the relation ...
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WO/1998/010005A1 |
A resin composition comprising 5 to 70 % by weight of an aromatic polyester moiety (A) comprising a polycondensate moiety composed mainly of an aromatic dicarboxylic acid residue and an aromatic diol residue, 10 to 75 % by weight of a po...
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WO/1998/009197A1 |
A layer-built electrophotography photosensitive element comprising a conductive support, a carrier generating layer formed on the conductive support and containing an organic carrier generating substance, and an electron transporting car...
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WO/1998/007075A1 |
A seamless belt has a layer-built structure of at least two layers. The elasticity of the outer layer of the seamless belt is larger than the elasticity of the inner layer. With this constitution, the seamless belt which is difficult to ...
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WO/1998/007074A1 |
This invention provides a process for electrographically imaging a plurality of substrates heretofore not usable in such a system. While prior art dielectric substrates could be used in the present process, the specific parameters outlin...
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WO/1998/006012A1 |
A toner image is formed on an electrophotograph photosensitive body by a developing means in which toner powder is stored. The toner image is transferred onto a transfer material and the image is outputted. The toner powder which remains...
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WO/1998/000762A1 |
A durable polymeric optical coating for a metal substrate comprising a polymeric binder and an additive selected from a polyhydroxyflavone, a polyhydroxy benzoic acid derivative or a hydroxy or polyhydroxy naphthoic acid or a mixture the...
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WO/1997/050020A1 |
Electrostatic or electrographic recording material comprising a microporous synthetic thermoplastic polymer as a sheet-like base material, having a content of at least 20 wt.%, based on the total weight of the base material, of finely di...
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WO/1997/046916A1 |
A hole transporting material having a structure represented by general formula (1) or (2) and being excellent in film forming and hole transporting properties. In formula (1) R1's represent each a hydrogen atom or an alkyl group, provide...
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WO/1997/042550A1 |
An electrographic imaging element (10) useful for forming colored images is described. The element contains an imaging layer structure (12) and a support structure (14). The support structure (14) contains an electrically conductive poly...
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WO/1997/040181A1 |
Method for specific detection of one or more analytes in a sample. The method includes specifically associating any one or more analytes in the sample with a scattered-light detectable particle, illuminating any particle associated with ...
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WO/1997/039045A1 |
A conjugated polymer containing structural units of formula (I) in which: D, E, F1, G are the same or different -CR1R1-, -O-, -S-, -NR3- or a chemical bond; Ar1, Ar2 are carbo or heterocyclene; U1, V1 are the same or different -CR5=CR6-,...
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