COMPOSITIONS COMPRISING CYCLIC OLEFINS AND THERMALLY CONDUCTIVE FILLER AND ADHESION PROMOTER

• Main Authors: SHAABAN, Ahmad, PEREZ, Mario A, LIN, Binhong
• Format: Patent
• Language: English; French
• Published: 20.10.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

A composition is described comprising a cyclic olefin; a ring opening metathesis polymerization catalyst; thermally conductive particles, and an adhesion promoter silicon-containing moieties. The thermally conductive particles are selected such that the composition after curing has a thermal conductivity of greater than 1W/M*K. In one embodiment, the thermally conductive particle comprises a combination of smaller and larger thermally conductive particles. Also described are coated substrates, methods of bonding and articles. L'invention concerne une composition comprenant une oléfine cyclique ; un catalyseur de polymérisation par métathèse avec ouverture de cycle ; des particules thermoconductrices et un promoteur d'adhérence contenant des fragments contenant du silicium. Les particules thermoconductrices sont sélectionnées de telle sorte que la composition après durcissement présente une conductivité thermique supérieure à 1W/M*K. Dans un mode de réalisation, la particule thermoconductrice comprend une combinaison de particules thermoconductrices plus petites et plus grosses. L'invention concerne également des substrats revêtus, des procédés de collage et des articles.