Abstract: Provided is a transparent thermoplastic composition including 70 to 95% by weight of a copolymer of ethylene and of an ethylenic monomer carrying a polar functional group and 5 to 30% by weight of a peroxide, where the copolymer includes from 20 to 45% by weight of the ethylenic monomer carrying a polar functional group. The composition may be used for crosslinking polymers.

Abstract: A semi-conductive crosslinked layer produced from a polymer composition includes at least one polymer A having at least one epoxy function. A cross-linking agent B includes at least one reactive function that can react with the epoxy function of said polymer A in order to allow the cross-linking of said polymer A. The polymer composition also has an electrically conductive filler having a specific surface area BET of at least 100 m2/g according to the ASTM standard D 6556.

Abstract: An electric device has a cross-linked layer obtained from a polymer composition that includes at least one polymer having at least one epoxy function. The polymer composition also has a non-polymer compound as a cross-linking agent including at least one reactive function that can react with the epoxy function of the polymer in order to allow the polymer to be cross-linked.

Abstract: The present invention relates to an electrical device (1, 20, 30) comprising a cross-linked layer (3, 4, 5) obtained on the basis of a cross-linkable polymer composition comprising a polymer material and particles with polyhedric structure, characterized in that the particles have a melting point of at most 200° C.

Abstract: The invention relates to an electrical device (1, 20, 30) comprising a semi-conductive cross-linked layer (3, 4, 5, 21, 22, 23, 31, 32) produced from a polymer composition comprising: at least one polymer A comprising at least one epoxy function, and a cross-linking agent B comprising at least one reactive function that can react with the epoxy function of said polymer A in order to allow the cross-linking of said polymer A, characterised in that the polymer composition also comprises an electrically conductive filler having a specific surface area BET of at least 100 m2/g according to the ASTM standard D 6556.

Abstract: The invention relates to an electric device (1, 20, 30) comprising a cross-linked layer (3, 4, 5, 21, 22, 23, 31, 32) obtained from a polymer composition including at least one polymer comprising at least one epoxy function, characterised in that the polymer composition also comprises a non-polymer compound as a cross-linking agent including at least one reactive function that can react with the epoxy function of the polymer in order to allow the polymer to be cross-linked.

Abstract: The invention relates to an electrical device (1,20,30) comprising a cross-linked layer (3, 4, 5, 21, 22, 23, 31, 32) produced from a polymer composition comprising: at least one polymer A comprising at least one epoxy function; and a cross-linking agent B comprising at least one reactive function that can react with the epoxy function of said polymer A in order to allow the cross-linking of said polymer A. The device is characterised in that the polymer composition also comprises a compound C comprising: at least one aromatic group; and a reactive group that can physically interact with the hydroxyl function formed by the opening of said epoxy function during the cross-linking of polymer A.

Abstract: invention relates to a transparent master mixture that includes an ethylene copolymer ethylene monomer having a polar function (a) and a peroxide (b), characterized in that said composition includes, by weight, from 5 to 30% of (b); from 70 to 95% of (a); and in that the copolymer (a) includes from 20 to 45 wt % of ethylene monomer having a polar function. The invention also relates to a method for producing a master mixture composition including an organic peroxide. The method makes it possible to produce a composition useful for cross-linking of polymers.

Abstract: The invention relates to a transparent master mixture that includes an ethylene copolymer and an ethylene monomer having a polar function (a) and a peroxide (b), characterized in that said composition includes, by weight, from 5 to 30% of (b); from 70 to 95% of (a); and in that the copolymer (a) includes from 20 to 45 wt % of ethylene monomer having a polar function. The invention also relates to a method for producing a master mixture composition including an organic peroxide. The method makes it possible to produce a composition useful for cross-linking of polymers.

Abstract: The present invention relates to a mixture including at least O,O-tert-butyl-O-(2-ethylhexyl) monoperoxycarbonate and at least O,O-tert-amyl-O-2-ethylhexyl monoperoxycarbonate, where the O,O-tert-amyl-O-2-ethylhexyl monoperoxycarbonate is present in the mixture in an amount of from 0.001% to 45% by weight relative to the total weight of the mixture. The invention also relates to a crosslinkable composition that includes such a peroxide mixture and an elastomer; and to uses of the crosslinkable composition and mixture.

Abstract: A cross-linking system which includes at least; one organic peroxide having a half-life of one hour at any temperature selected in the range from 80 DEG C. to 115 DEG C., and a cross-linking coagent, the half-life of said peroxide being measured by dissolving the peroxide in n-dodecane having a concentration of 0.2 mol/l. Said system enables, when added to a polymer, quick cross-linking of said polymer. The system is in particular suitable for encapsulating photovoltaic modules; in particular, the system can be used to improve the productivity of the method for manufacturing said modules.

Abstract: The invention relates to a transparent master mixture that includes an ethylene copolymer and an ethylene monomer having a polar function (a) and a peroxide (b), characterized in that said composition includes, by weight, from 5 to 30% of (b); from 70 to 95% of (a); and in that the copolymer (a) includes from 20 to 45 wt % of ethylene monomer having a polar function. The invention also relates to a method for producing a master mixture composition including an Organic peroxide. The method makes it possible to produce a composition useful for cross-linking of polymers.

Abstract: The present invention relates to a mixture including at least O,O-tert-butyl-O-(2-ethylhexyl) monoperoxycarbonate and at least O,O-tert-amyl-O-2-ethylhexyl monoperoxycarbonate, where the O,O-tert-amyl-O-2-ethylhexyl monoperoxycarbonate is present in the mixture in an amount of from 0.001% to 45% by weight relative to the total weight of the mixture. The invention also relates to a crosslinkable composition that includes such a peroxide mixture and an elastomer; and to uses of the crosslinkable composition and mixture.