Abstract

It is provided an electrode for a lithium-ion battery comprising an active layer comprising a linear styrene–ethylene/butylene-styrene (SEBS) copolymer as a binder which is characterized by having a melt flow rate (MFR) measured at 230 °C and 2.16 kg load from 4 to 220 g/10 min; a molecular weight of less than 100,000 g/mol, particularly from 50,000 g/mol to 100,000 g/mol and; a styrene content from 10 to 20 wt. %. It is also provided a process for the preparation of the electrode, which can be a cathode or an anode, and a Li-ion battery comprising the electrode.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a process for the functionalization of a rubber polymer comprising reacting the rubber polymer with at least one source of nitrene or carbene, in the presence of a catalyst of formula TpxAg, wherein Tpx represents a hydrotris(pyrazolyl)borate ligand. This process leads to selective rubber functionalization without secondary reactions such as chain scission or cross linking and produces functionalized rubbers with improved compatibilization properties. The invention also refers to the polymer produced therefrom and to uses of said polymer.

IPC Classes  ?

• C08F 212/08 - Styrene
• C08L 21/00 - Compositions of unspecified rubbers
• C08C 19/00 - Chemical modification of rubber

Abstract

The present disclosure relates to a piezoresistive ink composition for sensors production. This ink, change linearly their electrical resistivity with an applied deformation and can easily recover when the external applied stress is released. The composition comprises flexible polymers as thermoplastic elastomers from the styrene-butadiene-styrene family (SBS, SEBS or others), nanostructures of carbon or metal, polar solvents and dispersive agents. With this ink, the user can print the sensor with any desired geometry and use different printing techniques, including drop casting, spray, screen and inkjet printing.

IPC Classes  ?

• C09D 11/106 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C09D 11/30 - Inkjet printing inks
• C09D 11/52 - Electrically conductive inks
• H01L 41/08 - Piezo-electric or electrostrictive elements

Abstract

New hydrogenated styrenic block copolymers, in particular styrene-ethylene/butylene-styrene copolymers (SEBS copolymers), with improved performance in thermoplastic elastomer compositions (TPE compositions), process for preparing said hydrogenated styrenic block copolymers, reprocessable TPE-S compositions made thereof, method for producing an article from said reprocessable TPE-S compositions and articles made of said reprocessable TPE-S compositions, in particular suitable for medical applications.

IPC Classes  ?

• C08F 8/04 - Reduction, e.g. hydrogenation
• C08F 297/02 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
• C08K 5/00 - Use of organic ingredients
• C08K 5/01 - Hydrocarbons
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes

Abstract

New hydrogenated styrenic block copolymers, in particular styrene-ethylene/butylene-styrene copolymers (SEBS copolymers), with improved performance in thermoplastic elastomer compositions (TPE compositions), process for preparing said hydrogenated styrenic block copolymers, reprocessable TPE-S compositions made thereof, method for producing an article from said reprocessable TPE-S compositions and articles made of said reprocessable TPE-S compositions, in particular suitable for medical applications.

IPC Classes  ?

• C08F 8/04 - Reduction, e.g. hydrogenation
• C08F 297/02 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
• C08K 5/01 - Hydrocarbons
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
• C08K 5/00 - Use of organic ingredients

Abstract

The present invention relates to a segmented block copolymer composition based on diblock and/or triblock copolymers of vinyl aromatic monomer and hydrogenated butadiene blocks and thermoplastic polyurethane blocks which are linearly bonded by N or O atoms, and its procedure of obtainment based on reactive extrusion. Furthermore, the present invention relates to a thermoplastic composition, a laminate structure and a polyurethane foam, with improved properties, comprising the segmented block copolymer composition.

IPC Classes  ?

• C08F 297/04 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
• B32B 27/00 - Layered products essentially comprising synthetic resin
• C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
• C08G 18/66 - Compounds of groups , , or
• C08G 18/69 - Polymers of conjugated dienes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/08 - Processes
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

Abstract

The present invention relates principally to polymers that comprise at least one aromatic alkenyl monomer, at least one conjugated diene monomer, and at least one monomer that contains silyl hydride groups, which are characterized in that said polymers are hydrogenated and preferably functionalized by means of hydrosilylation reactions between the silyl hydride groups in the polymer chain and the multiple bonds of any alkene or alkyne compound. In addition to the products described, this invention comprises the methods for the synthesis thereof and the uses thereof, especially as hot-melt adhesives, in plastics impact modification, and in chain-extension reactions with a view to obtaining new materials, inter alia.

IPC Classes  ?

• C08C 19/02 - Hydrogenation
• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08C 19/44 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
• C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
• C08F 297/04 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes

Abstract

Functionalised multiarm polymers comprising the reaction product of a coupling agent and a polymer synthesised through anionic polymerisation. Furthermore, the invention relates to the method of obtainment thereof and the different uses thereof, particularly as hot melt adhesives.

IPC Classes  ?

• C08F 8/00 - Chemical modification by after-treatment
• C08F 8/04 - Reduction, e.g. hydrogenation

Abstract

The present invention relates to an elastomeric thermoplastic composition characterized in that it has compression resistance at temperatures between 20.degree.C and 100.degree.C, comprising hydrogenated styrene-butadiene block copolymers, and to the copolymers that form said composition. Furthermore, the present invention relates to a product that has been obtained by means of the moulding or extrusion of the composition described above.

IPC Classes  ?

• C08F 8/04 - Reduction, e.g. hydrogenation
• C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes

Abstract

The invention relates to a thermoplastic elastomer composition characterised in that it has a resistance to compression at temperatures of between 20 and 100ºC, comprising hydrogenated styrene-butadiene block copolymers, and to the copolymers that form said composition. In addition, the invention relates to a product obtained by means of moulding or extrusion of the aforementioned composition.

IPC Classes  ?

• C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
• C08F 8/04 - Reduction, e.g. hydrogenation

Abstract

Homogeneous catalyst based on titanium compounds of (R1Cp)(R2Cp)Ti (PhOR3)2 type, in which Cp is a cyclopentadienyl group, R1 and R2 are identical or different (C3-C10) alkyl radicals, Ph is a phenyl group and OR3 is an alkoxy group. Furthermore, the invention relates to the use of said catalyst in a method for the hydrogenation of double bonds of unsaturated compounds, preferably polymers and/or copolymers of conjugated dienes, under mild reaction conditions.

IPC Classes  ?

• B01J 31/22 - Organic complexes
• C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond