Agfa-gevaert

Agfa Gevaert Nv

Umicore

Showa Denko K.k.

Agfa Graphics Nv

Jan Gilleir

Stijn Put

Ivan Hoogmartens

Nicolas Marx

Luc H Leenders

Masataka Takeuchi

Ingrid E Geuens

Carlo A Uyttendaele

Kris Driesen

Kris Viaene

Dirk Van Genechten

Geert De Roover

Johan August Loccufier

Joan T Vermeersch

Luc J Vanmaele

Herman J Uytterhoeven

Geert H Defieuw

Geert Deroover

Paul J Coppens

Huub Van Aert

Yvan K Gilliams

Delphine Longrie

Dirk Franky Kokkelenberg

Nobuaki Ishii

Dan V Goia

Dirk Cyriel Quintens

Ludo Van Rompuy

Werner Krafft

Hendrik E Kokelenberg

Willem Mues

Ronny De Clercq

Pierre R De Roo

Augustin Meisters

Hartwig Andries

Jean-Sébastien Bridel

Hirokazu Murata

Robert Cyriel Van Haute

Arihiro Muto

Wim Mues

Arihiro Mutoh

John I Njagi

Horst Friedel

Powder comprising particles comprising a matrix material and silicon-based domains dispersed in this matrix material, whereby the matrix material is carbon or a material that can be thermally decomposed to carbon, whereby either part of the silicon-based domains are present in the form of agglomerates of silicon-based domains whereby at least 98% of these agglomerates have a maximum size of 3 &#x3bc;m or less, or the silicon-based domains are not at all agglomerated into agglomerates.

Powder, electrode and battery comprising such a powder

Powder comprising particles comprising a matrix material and silicon-based domains dispersed in this matrix material, whereby either part of the silicon-based domains are present in the form of agglomerates of silicon-based domains whereby at least 98% of these agglomerates have a maximum size of 3 &#x3bc;m or less, or the silicon-based domains are not at all agglomerated into agglomerates.

A production method for a composite of fine particles (A) and carbon particles (B), including the steps of: mixing fine particles (A) formed of a substance comprising at least one kind of Si, Sn, Al, Ge and In; and molten pitch, to obtain a mixture (); pulverizing the mixture () to obtain a pulverized product (); dry-mixing the pulverized product () and carbon particles (B) to obtain a mixture (); and firing the mixture (), followed by pulverization; or including the steps of: adding carbon particles (B) to the mixture (), followed by dry mixing and pulverizing, to obtain a pulverized product (); and firing the pulverized product (), followed by pulverization.

Method for producing composite, and negative electrode material for lithium ion battery

This invention relates to a negative electrode material for lithium-ion batteries comprising silicon and having a chemically treated or coated surface influencing the zeta potential of the surface. The active material consists of particles or particles and wires comprising a core comprising silicon, wherein the particles have a positive zeta potential in an interval between pH 3.5 and 9.5, and preferably between pH 4 and 9.5. The core is either chemically treated with an amino-functional metal oxide, or the core is at least partly covered with OSiHgroups, with 1&#x3c;x&#x3c;3, 1&#x2264;y&#x2264;3, and x&#x3e;y, or is covered by adsorbed inorganic nanoparticles or cationic multivalent metal ions or oxides.

Positively charged silicon for lithium-ion batteries

A color pigment containing, based upon the total weight of the pigment, at least 70.0 weight % of a first compound COP according to Formula (I): wherein one of Rand Ris hydrogen and the other one of Rand Rrepresents &#x2014;COOR; Rand Rrepresent methyl; Ris selected from the group consisting of: with C* representing the point of attachment of Rto the nitrogen in Formula (I); and having a pigment surface including between 2.0 and 30.0 weight %, based upon the total weight of the pigment of a second compound according to Formula (I), wherein &#x2014;R, R, R, Rand Rhave the same meaning as above with the exception that at least one of Rand Rrepresents hydrogen. Also, methods of preparation of the pigment and non-aqueous pigment dispersions.

Yellow pigments and non-aqueous pigment dispersions

A method has been disclosed for preparing a co-precipitated microcrystalline dye dispersion, the absorption spectrum of which exceeds the summoned spectra of individually dispersed dyes, which comprises, as consecutive preparation steps: adding to one vessel, an amount of at least one pentamethine oxonol-type barbituric acid filter dye having ionizable sites in its molecular structure; adding thereto an aqueous alkaline solution in an amount sufficient to completely dissolve the said filter dye while stirring the solution thus formed; adding in another vessel, to an amount of at least one pyrrole type filter dye, an amount of water, followed by adding of an aqueous alkaline solution and a surfactant; followed, after having completely dissolved (under stirring conditions) the said pyrrole type filter dye, by adding to the solution thus formed in the other vessel, the solution formed in the one vessel; adding an aqueous acidic solution up to a pH of less than 3.0; adding an aqueous alkaline solution up to a pH in the range from 4.0 up to 5.5; followed by adding a binder in order to make the dispersion thus obtained ready-for-coating in a filter dye layer on a support, suitable for use as antihalation undercoat layer between said support and a light-sensitive layer or as a backing layer of said material, or as layer covering the light-sensitive layer, thus providing safelight protection.

Method of preparing co-precipitated microcrystalline dye dispersions and layers coated therewith in materials

A substantially light-insensitive thermographic recording material substantially exclusive of cationic surfactants in which at least one non-cationic surfactant is present, the thermographic recording material comprising a support and a thermosensitive element containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith and a binder, wherein all the non-cationic surfactants present in the thermographic recording material together have a non-fluoro-halide ion concentration of 1500 ppm or less; and a process for the production thereof.

Substantially light-insensitive thermographic recording materials with improved stability

A photothermographic recording material comprising a support and a photo-addressable thermally developable element comprising photosensitive silver halide in catalytic association with a substantially light-insensitive organic silver salt, an organic reducing agent for the substantially light-insensitive organic silver salt in thermal working relationship therewith and a water-soluble or water-dispersible binder, characterized in that the substantially light-insensitive organic silver salt is a silver salt of an organic carboxylic acid, the photo-addressable thermally developable element further comprises a non-ionic or anionic surfactant and the photo-addressable thermally developable element is coatable from an aqueous medium and is capable of producing stable images without a wet-processing step; a process for producing the photothermographic recording material and a photothermographic recording process therefor.

Photothermographic recording material coatable from an acqueous medium

A recording material including a support and a thermosensitive element comprising a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a hydrophobic polymer, a binder and optionally photosensitive silver halide in catalytic association with the substantially light insensitive organic silver salt, wherein the thermosensitive element includes a non-heat-responsive separate organic phase containing the hydrophobic polymer and the organic reducing agent; a process for producing the recording material; and a (photo)thermographic recording process therefor.

Thermographic recording material coatable with improved stability

According to the present invention there is provided a thermosensitive imaging element for obtaining a lithographic printing plate comprising on a hydrophilic surface of a support a layer comprising an organic metallic salt and in the same or an adjacent layer an organic reducing agent and a compound capable of converting light into heat, said organic metallic salt being reducible on heating by said reducing agent to an ink-accepting compound or to a compound which can react with a hydrophobizing agent to an ink-accepting compound, characterized in that said layer comprising an organic metallic salt comprises a hydrophobic binder in an amount between 0.00 g/m.sup.2 and 0.25 g/m.sup.2 and a hydrophilic binder in an amount between 0.00 g/m.sup.2 and 5.00 g/m.sup.2.

Heat sensitive imaging element and a method for producing lithographic

A recording material comprising at least one thermosensitive element, comprising a substantially light-insensitive organic silver salt and an organic reducing agent therefor in thermal working relationship therewith, on a support, characterized in that an outermost layer of said recording material comprises at least one solid lubricant having a melting point below 150.degree. C. and at least one liquid lubricant in a binder, wherein at least one of said lubricants is a phosphoric acid derivative. The outermost layer of the recording material in contact with the heat source during the thermal image forming process may be the outermost layer of the thermosensitive element, a protective layer applied to the thermosensitive element or a layer on the opposite side of the support to the thermosensitive element.

Thermographic recording material with improved slip properties

The present invention provides an imaging element comprising on a hydrophilic base a light-sensitive layer containing polyvinyl alcohol hydrolyzed to at least an extent of 95% by weight, a cationic surfactant and a diazo resin and/or a diazonium salt characterized in that the light-sensitive layer comprises metal-free phthalocyanine. The present invention also provides a method for obtaining an imaging element as defined in any of the claims 1 to 6 by

Diazo based imaging element containing hydrolysed polyvinyl alcohol and

A method is described for preparing a concentrated dispersion of a photographically useful compound ready-for-use in coating solutions of hydrophilic colloid layers of a silver halide photographic material, wherein said compound has at least one ionisable acid site on its molecule, the said method comprising the steps of deprotonising and solubilising the said compound in alkaline medium; microprecipitating the said compound and milling the microprecipitated compound obtained, coating the said dispersion of a photographically useful compound in non-light-sensitive and/or light-sensitive hydrophilic layers of a silver halide photographic material, wherein milling proceeds during and/or after the microprecipitating step.

Method of preparing dispersions of photographically useful compounds

Growing community of inventors

Mortsel, Belgium

Jan Gilleir