Abstract: Power module comprising a power semiconductor die and at least one substrate comprising an insulating layer in contact with a metallized connection surface of said die and at least one conductive path on a conductive layer on a face of the insulating layer opposite to the metallized connection surface of the die and wherein said insulating layer comprises vias filled with conductive material to provide connecting pads between said metallized connection surface of said die and said conductive path, and wherein said vias are arranged with a decreasing density from at least one hot spot position of said metallized connection surface when the die is in operation to a peripheral area of said metallized connection surface.

Abstract: A power module having a first integrated power board having a first positive terminal, a first power semiconductor die, a first middle point terminal, a second power semiconductor die and a first negative terminal, a second integrated power board having a second positive terminal, another first power semiconductor die, a second middle point terminal, another second power semiconductor die and a second negative terminal, a PCB busbar having opposite first face and second face and having power conductive tracks and connection pads, on both said first face and said second face, wherein said first integrated power board has its first positive terminal, first middle point terminal and first negative terminal connected to connection pads on said first face, wherein said second integrated power board has its first positive terminal, first middle point terminal and first negative terminal connected to further connection pads on said second face.

Abstract: Power module comprising a power semiconductor die and at least one substrate comprising an insulating layer in contact with a metallized connection surface of said die and at least one conductive path on a conductive layer on a face of the insulating layer opposite to the metallized connection surface of the die and wherein said insulating layer comprises vias filled with conductive material to provide connecting pads between said metallized connection surface of said die and said conductive path, and wherein said vias are arranged with a decreasing density from at least one hot spot position of said metallized connection surface when the die is in operation to a peripheral area of said metallized connection surface.

Abstract: The present invention concerns a linear amplifier for providing a sinusoidal waveform to a load, characterized in that the linear amplifier is composed of an asymmetric amplifier and a H-bridge module, the asymmetric amplifier comprises at least one transistor that amplifies a full wave rectified sinus signal that is transformed by the H bridge module into a sinewave signal that is provided to the load.

Abstract: A power module (1) is disclosed, comprising: first and second substrates (10), each substrate patterned layer of electrically conductive material (12), a plurality of pre-packed power cells (20), positioned between the substrates, each cell comprising: an electrically insulating core (21) embedding at least one power die (22), and two external layers (23) of electrically conductive material on opposite sides of the electrically insulating core (21), said external layers being respectively connected to each patterned layers of the substrates, wherein each external layer of a pre-packed power cell comprises a contact pad (230) connected to a respective contact (220) of the power die through connections arranged in the electrically insulating core (21), said contact pad having a surface area greater than the surface area of the power die electrical contact to which it is connected.

Abstract: A polyester polyol of formula produced by a first polycondensation (a) of a sugar alcohol Z in C3 to C8 and two diacids Y and Y? which are the same or different in C4 to C36, and a second polycondensation (b) of the product produced in (a) with two diols X and X? which are the same or different in C2 to C12, the polymer including such a polyester polyol. Also, a method for producing the polyester polyols and the use thereof in foams, adhesives, coatings or elastomers of polyurethane or polyisocyanurate.

Abstract: A rigid foam or a composition allowing a rigid foam to be obtained, including a polyester polyol or a polymer including a polyester polyol, the polyester polyol being obtained by a first polycondensation (a) of a C3 to C8 sugar alcohol Z and two identical or different C4 to C36 diacids Y and Y? and a second polycondensation (b) of the product obtained in (a) with two identical or different C2 to C12 diols X and X?.

Abstract: The invention relates to an electrical power assembly (1), comprising: a power die (10), having at least two electrical contacts (11), an electrically insulating core (20), wherein the power die is embedded in the electrically insulating core, and two layers (30) of electrically conductive material on opposite main surfaces of the electrically insulating core, characterized in that the electrical power assembly comprises at least one open cavity (40) extending from an electrical contact (11) of the power die, through the electrically insulating core and the layer (30) of electrically conductive material located on the same side of the power die than the electrical contact, such that the open cavity has a bottom (41) formed by an area of the electrical contact of the power die.

Abstract: A power module (1) is disclosed, comprising: first and second substrates (10), each substrate patterned layer of electrically conductive material (12), a plurality of pre-packed power cells (20), positioned between the substrates, each cell comprising: an electrically insulating core (21) embedding at least one power die (22), and two external layers (23) of electrically conductive material on opposite sides of the electrically insulating core (21), said external layers being respectively connected to each patterned layers of the substrates, wherein each external layer of a pre-packed power cell comprises a contact pad (230) connected to a respective contact (220) of the power die through connections arranged in the electrically insulating core (21), said contact pad having a surface area greater than the surface area of the power die electrical contact to which it is connected.

Abstract: A polyester polyol of formula produced by a first polycondensation (a) of a sugar alcohol Z in C3 to C8 and two diacids Y and Y? which are the same or different in C4 to C36, and a second polycondensation (b) of the product produced in (a) with two diols X and X? which are the same or different in C2 to C12, the polymer including such a polyester polyol. Also, a method for producing the polyester polyols and the use thereof in foams, adhesives, coatings or elastomers of polyurethane or polyisocyanurate.

Abstract: A flexible or semi-flexible foam, or a composition making it possible to obtain a flexible or semi-flexible foam, including a polyester polyol or a polymer comprising a polyester polyol. The polyester polyol is obtained by a first polycondensation (a) of an alcohol sugar Z in C3 to C8 and of two identical or different diacids Y and Y? in C4 to C36 and a second polycondensation (b) of the product obtained in (a) with two identical or different diols X and X? in C2 to C12.

Abstract: A rigid foam or a composition allowing a rigid foam to be obtained, including a polyester polyol or a polymer including a polyester polyol, the polyester polyol being obtained by a first polycondensation (a) of a C3 to C8 sugar alcohol Z and two identical or different C4 to C36 diacids Y and Y? and a second polycondensation (b) of the product obtained in (a) with two identical or different C2 to C12 diols X and X?.

Abstract: Disclosed is a method for manufacturing an isocyanurate polyurethane-modified foam, called “PUIR,” including: a) providing an oil or oil mixture at least 50% by weight of the fatty acids having a carbon chain of C18 or more, the fatty acids having an overall iodine number Iiodine of at least 100 g of I2/100 g; b) epoxidating at least 50% of the double bonds in the oil to form the corresponding epoxides; and c) directly reacting, in situ, the epoxides that are obtained above with isocyanate or diisocyanate groups for obtaining corresponding oxazolidone derivatives, without passing through the intermediate formation of polyols obtained from epoxides, in the presence of at least one suitable catalyst and at least one expanding agent, so as to obtain the isocyanurate polyurethane-modified foam “PUIR.” Also disclosed are products, such as rigid insulation material, in particular as a material or panels of rigid insulation for roofing.

Abstract: The present invention relates to a polymerisable plasticiser formed by a hydrocarbon chain, one end of which bears more than one isocyanate function, said hydrocarbon chain comprising and/or being substituted by an aromatic ring and/or an aliphatic ring and/or said hydrocarbon chain is substituted by at least two hydrocarbon chains that can comprise an unsaturation, and the number of isocyanate functions being strictly greater than 1, preferably greater than 1.2, and, more preferably, grater than 1.5 but less than or equal to 2.2. The invention also relates to liquid polyurethane resin compositions and, in particular, stable, ready-to-use liquid polyurethane resin compositions comprising said plasticiser. The invention further relates to methods for replacing all or part of the exogenous plasticiser and/or solvent in a polyurethane resin by adding said polymerisable plasticiser.

Abstract: To provide an agent promoting secretion and/or suppressing decrease of adiponectin, and an eating and drinking product and a feed promoting secretion and/or suppressing decrease of adiponectin. Provided are an agent promoting secretion and/or suppressing decrease of adiponectin, and a eating and drinking product and a feed promoting secretion and/or suppressing decrease of adiponectin, having as an active component a culture supernatant of Streptococcus, Lactobacillus, Propionibacterium, yeast, Leuconostoc, and Lactococcus.

Abstract: The invention relates to polyurethane resin compositions and, in particular, stable, ready-to-use polyurethane resin compositions comprising: a masked polyisocyanate having formula (I), wherein B represents alkyl and A represents a group comprising a number of isocyanate functions of between 1.5 and 2.2, preferably between 1.5 and 2.1 and, more preferably, between 1.5 and 2; or a masked pre-polymer that is the product of a reaction between the above-mentioned masked polyisocyanate and a polyol having between 1.5 and 3 OH functions and a molecular mass of between 900 and 3,000 g/mol, in a ratio such that the number of NCO functions of the masked polyisocyanate in relation to the number of OH functions of the polyol is between 1.5 and 2.5 approximately; or a mixture of the aforementioned masked polyisocyanate and masked pre-polymer.

Abstract: A polyurethane resin composition comprising a prepolymer and a polymerizable plasticizer, and which may also comprise at least one constituent chosen from the group comprising: a masked polyisocyanate; a diluent; bitumen or a bituminous mixture; and mixtures thereof, and uses thereof.

Abstract: The invention relates to a diluent comprising: a polyisocyanate having a number of isocyanate functions strictly greater than 1 and less than or equal to 3.1; a bis-oxazolidine, and a catalyst, the amounts of bis-oxazolidine and of polyisocyanate having a number of isocyanate functions strictly greater than 1 and less than or equal to 3.1 being such that the molar ratio between the —NH functions of the bis-oxazolidine and the NCO functions is from 0.3 to 0.75; the —NH functions of the bis-oxazolidine being the —NH functions derived from the amine functions formed after opening of the bis-oxazolidine ring, said diluent not comprising any solvent or any exogenous plasticizer; to polyurethane resin compositions comprising said diluent and to the uses thereof.

Abstract: A polyurethane resin composition comprising a prepolymer and a polymerizable plasticizer, and which may also comprise at least one constituent chosen from the group comprising: a masked polyisocyanate; a diluent; bitumen or a bituminous mixture; and mixtures thereof, and uses thereof.

Abstract: The present invention relates to a polymerisable plasticiser formed by a hydrocarbon chain, one end of which bears more than one isocyanate function, said hydrocarbon chain comprising and/or being substituted by an aromatic ring and/or an aliphatic ring and/or said hydrocarbon chain is substituted by at least two hydrocarbon chains that can comprise an unsaturation, and the number of isocyanate functions being strictly greater than 1, preferably greater than 1.2, and, more preferably, grater than 1.5 but less than or equal to 2.2. The invention also relates to liquid polyurethane resin compositions and, in particular, stable, ready-to-use liquid polyurethane resin compositions comprising said plasticiser. The invention further relates to methods for replacing all or part of the exogenous plasticiser and/or solvent in a polyurethane resin by adding said polymerisable plasticiser.