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See detailProcess for depositing strong adherend polymer coating onto an electrically conductive surface
Bertrand, Olivier; Jérôme, Robert ULg; Gautier, Sandrine et al

Patent (2004)

Process for depositing by electrografting a strong adherent polymer coating onto an electrically conductive surface comprising the step of electrochemical grafting of an active monomer for forming a ... [more ▼]

Process for depositing by electrografting a strong adherent polymer coating onto an electrically conductive surface comprising the step of electrochemical grafting of an active monomer for forming a primer coating P onto the surface and having as general formula: X0 (meth)acrylate wherein X is either part of a preformed polymer or is an intermediate agent for polyaddition reaction or is an anchoring group for attachment of a molecule having at least one complementary reactive group. Such process allows formation of new primer by one-step electro-grafting of a macromonomer. Such process also allows further modification of an initial electrografted polymer to increase the coating thickness by the grafting-from technique. Such process also allows to graft onto the primer coating compounds like functional polymer, peptide, protein, oligonucleotide, dyes, drugs, anti-bacterian compounds. [less ▲]

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See detailProcess for depositing strong adherend polymer coating onto an electrically conductive surface
Bertrand, Oliver; Jérôme, Robert ULg; Gautier, Sandrine et al

Patent (2004)

Process for depositing by electrografting a strong adherent polymer coating onto an electrically conductive surface comprising an electrochemical grafting at the surface of an active monomer for forming a ... [more ▼]

Process for depositing by electrografting a strong adherent polymer coating onto an electrically conductive surface comprising an electrochemical grafting at the surface of an active monomer for forming a primer coating P onto said surface and having as general formula: X0 (meth)acrylate wherein X is either part of a preformed polymer or is an intermediate agent for polyaddition reaction or is an anchoring group for attachment of a molecule having at least one complementary reactive group. Such process allows formation of new primer by one-step electro-grafting of a reactive polymer called macromonomer.; Such process also allows further modification of an initial electrografted polymer (called primer coating) to increase the coating thickness by the so-called grafting-from technique i.e. polymerization of a second monomer or to introduce other types of polymers(also called top coating) via covalent attachment between the primer and the top coating through the X ester group by the so called grafting onto technique. Such process also allows to graft onto the primer coating compounds like functional polymer, peptide, protein, oligonucleotide, dyes, drugs, anti-bacterian compounds. [less ▲]

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See detailProcess for depositing strong adherend polymer coating onto an electrically conductive surface
Bertrand, Olivier; Jérôme, Robert ULg; Gautier, Sandrine et al

Patent (2002)

Detailed reference viewed: 43 (2 ULg)
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See detailProcess for preparing electromagnetic interference shileding materials
Thomassin, Jean-Michel ULg; Jérôme, Christine ULg; Detrembleur, Christophe ULg et al

Patent (2012)

The present invention relates to a process for preparing an electromagnetic interference shielding material, or a precursor thereof, comprising a first polymer matrix and carbon conductive loads, said ... [more ▼]

The present invention relates to a process for preparing an electromagnetic interference shielding material, or a precursor thereof, comprising a first polymer matrix and carbon conductive loads, said process comprises the steps of: (a) Forming a reaction mixture comprising carbon conductive loads and a polymerizable medium said polymerizable medium comprising one or more monomers dissolved in a solvent, (b) Exposing the reaction mixture to polymerization conditions to polymerize said polymerizable medium and thus form a polymer, and (c) Forming a precipitate or an agglomerate of an electromagnetic interference shielding material made of less than 50 wt.% carbon conductive loads dispersed in the first polymer matrix formed in step (b), characterized in that, said polymer is insoluble in said solvent and in that a fraction of the polymer chains thus formed are grafted on part of the surface of the carbon conductive loads. [less ▲]

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See detailProcess for preparing electromagnetic interference shileding materials
Thomassin, Jean-Michel ULg; Jérôme, Christine ULg; Detrembleur, Christophe ULg et al

Patent (2012)

The present invention relates to a process for preparing an electromagnetic interference shielding material, or a precursor thereof, comprising a first polymer matrix and carbon conductive loads, said ... [more ▼]

The present invention relates to a process for preparing an electromagnetic interference shielding material, or a precursor thereof, comprising a first polymer matrix and carbon conductive loads, said process comprises the steps of: (a) Forming a reaction mixture comprising carbon conductive loads and a polymerizable medium said polymerizable medium comprising one or more monomers dissolved in a solvent, (b) Exposing the reaction mixture to polymerization conditions to polymerize said polymerizable medium and thus form a polymer, and (c) Forming a precipitate or an agglomerate of an electromagnetic interference shielding material made of less than 50 wt.% carbon conductive loads dispersed in the first polymer matrix formed in step (b), characterized in that, said polymer is insoluble in said solvent and in that a fraction of the polymer chains thus formed are grafted on part of the surface of the carbon conductive loads. [less ▲]

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See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg et al

Patent (1998)

This process is characterized by the fact that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature that can be as low as 0 DEG C ... [more ▼]

This process is characterized by the fact that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature that can be as low as 0 DEG C., in the presence of an initiation system including: at least one compound generating radicals, other than bromofluorene, and at least one catalyst consisting of a complex of palladium in the 0 oxidation state, denoted by the following formula (I): Pd(0)L1L2L3L4 in which each of L1, L2, L3 and L4, which are identical or different, denotes a ligand which may be a chiral ligand, which is chosen from PRR'R'', P(OR)(OR')(OR''), NRR'R'', ORR', SRR', SeRR', AsRR'R'', SbRR'R'', where each of R, R' and R'' independently denotes a C1-C14 alkyl group, optionally substituted, or an optionally substituted aromatic group, it being possible for at least two of these ligands to be joined to one another by one or more divalent radicals. [less ▲]

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See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg et al

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

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See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

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See detailProcess for radical controlled polymerization or copolymerization of (meth)acryl and vinyl monomers and thus prepared (co)polymers
Lecomte, Philippe ULg; Dubois, Philippe; Jérôme, Robert ULg et al

Patent (1998)

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low ... [more ▼]

A process for a radical-controlled polymerisation or co-polymerisation of (meth)acrylic and/or vinylic monomers is effected en masse, solution, emulsion or suspension at a temperature which may be as low as 0 degrees C, in the presence of a system comprising (i) a radical generator compound other than bromofluorene; and (ii) a catalyst consisting of a Pd complex of degree of oxidation zero, corresponding to formula Pd(0)L<1>L<2>L<3>L<4> (I), where L<1>-L<4> = ligand (possibly chiral) chosen from PRR<1>R<2>, P(OR)(OR<1>)(OR<2>), NRR<1>R<2>, ORR<1>, SRR<1>, SeRR<1>, AsRR<1>R<2> and SbRR<1>R<2>; and R, R<1>, R<2> = 1-14C alkyl (optionally substituted) or aromatic (optionally substituted), at least two of the ligands being capable of interconnecting with one or more bivalent radicals. [less ▲]

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See detailProcess for the preparation of a catalyst and its use for the conversion of chloroalkanes into alkenes containing less chlorine
Delhez, Patrice; Heinrichs, Benoît ULg; Pirard, Jean-Paul ULg et al

Patent (2000)

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes ... [more ▼]

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes including the metals of group VIII and Ib and difunctional complexing compounds including an electron-donor group and a hydrolysable group is hydrolysed in order to form a gel. Process for the conversion of chloroalkanes into alkenes containing less chlorine by means of hydrogen, using such a catalyst. [less ▲]

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See detailProcess for the synthesis for alkoxy amines and their use in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2004)

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered ... [more ▼]

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III), in a water-containing medium to form a reaction product and an aqueous phase, (2) removing of the aqueous phase, and (3) (adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process. [less ▲]

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See detailA process for the synthesis of alkoxyamines and their use in controlled radical polymerization
Detrembleur, Christophe ULg; Gross, Thomas; Meyer, Rolf-Volker

Patent (2003)

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) (See formulas I and II) is disclosed. The process entails (1) reacting of an oxidizing agent (A ... [more ▼]

A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) (See formulas I and II) is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III), (See formula III) in a water-containing medium to form a reaction product and an aqueous phase , (2) removing of the aqueous phase, and (3) adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process. [less ▲]

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See detailProcess for the synthesis of nucleotide-6-deoxy-D-xylo-4-hexulosen
Marquardt, Ruediger; Hoersch, Brigitte; Seiffert-Stoeriko, Andreas et al

Patent (1999)

Detailed reference viewed: 7 (0 ULg)
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Peer Reviewed
See detailProcess Integration Techniques in the Development of New Energy Technologies : Application to the Isothermal Gas Turbine
Dumont, Marie-Noëlle ULg; Marechal, Francois; Kalitventzeff, Boris ULg

(1998, August)

Cogeneration is one of the key technologies for CO2 reduction in the process industry. A good integration of the cogeneration system and the process is necessary to obtain the maximum energy saving. This ... [more ▼]

Cogeneration is one of the key technologies for CO2 reduction in the process industry. A good integration of the cogeneration system and the process is necessary to obtain the maximum energy saving. This requires the possibility of adapting the design parameters of the cogeneration system to better suit the process requirements. The isothermal gas turbine is a new concept combining partial oxidation and staged combustion inside a gas turbine to reach electrical efficiencies as high as 58%. The use of steam in the catalytic burner allows to expand steam directly in the gas turbine in such a way that the mechanical power production is increased. The flue gases composition and temperature are therefore modified. New flow sheets for combined cycles will be presented as well as their adaptation to different steam to carbon ratios. When using isothermal gas turbine as a cogeneration system, the steam flowrate allows adapting the flue gases of the turbine in order to match at best the process requirements. The conceptual design of the isothermal gas turbine integration has been performed using the « Effect Modeling and Optimization » concept that is based on process integration techniques. This serves as a first step to identify the major flow rates to be considered for the technology. The final configuration of the integrated technology has been evaluated afterwards using process simulation. [less ▲]

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Peer Reviewed
See detailProcess mineralogy and automated phase identification in mixed copper ores at Kansanshi (Zambia)
Kottgen; Bastin, David ULg; Dufrane, Florent et al

Conference (2010)

Detailed reference viewed: 15 (0 ULg)
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Peer Reviewed
See detailProcess monitoring using a combination of data driven techniques and model based data validation
Duchesne, Arnaud; Heyen, Georges ULg; Mack, Philippe et al

in Revista de Chimie (2007), 58(4), 423-426

Process monitoring is made difficult when measurements are subjected to errors, since pertinent information is hidden in the measurement noise. To address this issue, one can use model based data ... [more ▼]

Process monitoring is made difficult when measurements are subjected to errors, since pertinent information is hidden in the measurement noise. To address this issue, one can use model based data validation, or rely on statistical techniques to analyze large historical data sets (data mining). An industrial case study is presented here, where a model based approach (data validation) is compared to data driven techniques. [less ▲]

Detailed reference viewed: 65 (7 ULg)