Polymers, elastomeric compounds, and products thereof,...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/30 (2006.01) C08C 19/44 (2006.01) C08F 2/38 (2006.01) C08F 4/48 (2006.01) C08L 47/00 (2006.01)

Patent

CA 2224399

A method of terminating a living polymer comprising the step of reacting with a living polymer a terminator defined according to formula (I) (see fig. I) where Z is a halogen atom; R1 is selected from the group consisting of organic groups containing from 1 to about 12 carbon atoms and a bridging bond; each R2 is independently selected from the group consisting of hydrogen, organic groups containing from 1 to about 12 carbon atoms, and a bridging bond; each R3 is independently selected from the group consisting of hydrogen and organic groups containing from 1 to about 12 carbon atoms; a is an integer from 4 to about 16; and b is an integer from 0 to about 12; and optionally including a bridge, formed by the selection of two of said bridging bonds, the bridge having0 to about 6 carbon atoms between the bridging ring members. Also provided are a vulcanizable composition of matter, a vulcanizate and a tire comprising the functionalized polymers of the present invention.

Méthode pour terminer une chaîne de polymère vivant comportant une étape de réaction entre un polymère vivant et un groupe terminal conforme à la formule (I) (voir la fig. I) où Z est une halogène; R1 est choisi parmi un groupe constitué de groupements organique contenant de 1 à environ 12 atomes de carbone et d'un lien de pontage; chacun des groupes R2 est choisi de façon indépendante parmi un groupe constitué de l'hydrogène, de groupements organiques contenant de 1 à environ 12 atomes de carbone et d'un lien de pontage; chacun des groupe R3 est choisi de façon indépendante parmi un groupe constitué de l'hydrogène et de groupes organiques contenant de 1 à environ 12 atomes de carbone; a est un entier de 4 à environ 16 et b est un entier de 0 à environ 12, pouvant comporter un pont, formé par la sélection de deux desdits liens de pontage, ce pont ayant de 0 à environ 6 atomes de carbone entre les éléments de l'anneau de pontage. L'invention porte aussi sur des compositions vulcanisables, un vulcanisat et des pneumatiques fabriqués à partir de ces polymères à fonctions.

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