C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/548 (2006.01) C08J 3/20 (2006.01) C08K 3/36 (2006.01)
Patent
CA 2528942
The invention relates to a coupling agent for an elastomeric composition comprising a reinforcing filler. The inventive coupling agent comprises a combination of the following: between 10 and 90 % of a mixture of poly(alkyl phenol) polysulphides having formula (I), wherein R is an alkyl radical comprising between 1 and 20 carbon atoms, n and n' are two integers of between 1 and 8 and p is an integer of between 0 and 50; and between 10 and 90 % bis-triethoxysilylpropyl tetrasulphide. The invention also relates to the vulcanisable elastomeric composition comprising a reinforcing filler, for which the coupling agent is used. The invention further relates to a moulded article which is obtained by forming and heating the aforementioned composition.
Agent de couplage consistant en une combinaison de : 10 à 90 % d'un mélange de polysulfures de poly(alkyl phénol) de formule (I) dans laquelle : R est un radical alkyle comprenant de 1 à 20 atomes de carbone, n et n' sont deux entiers compris entre 1 et 8, p est un entier compris entre 0 et 50 ; et de 10 à 90%, de tétrasulfure de bis-triethoxysilylpropyle. Composition élastomérique vulcanisable comprenant une charge renforçante le mettant en .oelig.uvre. Article moulé obtenu par mise en forme et chauffage de la composition.
Arkema
Arkema France
Robic
LandOfFree
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