Organofunctional silanes and their mixtures

Details Organofunctional silanes and their mixtures Organofunctional silanes and their mixtures

C - Chemistry, Metallurgy

07

F

C07F 7/18 (2006.01) C08G 77/28 (2006.01)

Patent

CA 2642992

Organofunctional silanes, inclusive of dimers and oligomers, are provided in which individual silanes possess both free and blocked mercaptan functionality or particular mixtures of the organofunctional silanes possess both free and blocked mercaptan functionality. The organofunctional silanes and silane mixtures are useful, inter alia, as coupling agents for elastomeric compositions, e.g., rubber formulations employed in the manufacture of tires, where they exhibit a desirable balance of low scorch and good performance properties.

L' invention concerne des silanes organofonctionnels comprenant des dimères et des oligomères, dans lesquels les silanes individuels possèdent à la fois une fonction mercaptan libre et une fonction mercaptan bloquée, ou des mélanges particuliers de ces silanes organofonctionnels possèdent à la fois une fonction mercaptan libre et une fonction mercaptan bloquée. Ces silanes et mélanges de silanes organofonctionnels peuvent être utilisés notamment comme agents de couplage dans des compositions élastomères, p. ex. des préparations de caoutchouc utilisées pour la fabrication de pneumatiques, dans lesquelles ils offrent un équilibre approprié entre caractéristiques de résistance au grillage et caractéristiques haute performance.

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