Abstract: The invention also relates to a process for synthesizing an ester-containing benzoxazine monomer of formula (1) comprising the following steps consisting of: c) reacting a phenolic acid derivative of formula (II), comprising at least one R*** group on the phenolic ring: wherein x is of from 0 to 1, and y=1-x, with a polyfunctional molecule or oligomer of formula (III) at a temperature of from 25° C. to 200° C., during 1 h-72 h, in the presence of a catalyst of Bronsted acid type, resulting in a phenol terminated oligomer or molecule (compound (IV)), and reacting the compound (IV) with a mixture of: an amino-alcohol of formula (V): a primary amine derivative of formula (VI), R**—NH2??(VI), and paraformaldehyde of formula (VII) at a temperature range of from 80° C. to 100° C.

Abstract: The present invention is directed to a rubber composition comprising 100 phr of one or more diene-based elastomers, 30 phr to 200 phr of a filler, and a benzoxazine which is the reaction of (i) a diphenol comprising two phenol groups and a bridge covalently connecting the two phenol groups, (ii) an aldehyde derivative, and (iii) an amine, wherein the bridge is connected to at least one of the phenol groups at a meta position of said at least one phenol group. The present invention is also directed to a rubber product comprising such a rubber composition and the use of such rubber products in tire components.

Abstract: The present invention is directed to a rubber composition comprising 100 phr of at least one diene-based rubber, 30 phr to 250 phr of at least one filler, and 1 phr to 40 phr of an epoxidized and aminated fatty acid ester, wherein the epoxidized and aminated fatty acid ester is obtained from the reaction of an epoxidized fatty acid ester with an aliphatic amine. Furthermore, the present invention is directed to a rubber product, such as a tire, comprising such a rubber composition.

Abstract: The present invention is directed to a copolymer of styrene and ?-methylstyrene comprising an alternating sequence of styrene and ?-methylstyrene residues, and a method to make the copolymer.

Abstract: The present invention is directed to a rubber composition comprising 100 phr of at least one diene-based rubber, 30 phr to 250 phr of at least one filler, and 1 phr to 40 phr of an epoxidized and aminated fatty acid ester, wherein the epoxidized and aminated fatty acid ester is obtained from the reaction of an epoxidized fatty acid ester with an aliphatic amine. Furthermore, the present invention is directed to a rubber product, such as a tire, comprising such a rubber composition.

Abstract: The present invention is directed to a rubber composition comprising 100 phr of one or more diene-based elastomers, 30 phr to 200 phr of a filler, and a benzoxazine which is the reaction of (i) a diphenol comprising two phenol groups and a bridge covalently connecting the two phenol groups, (ii) an aldehyde derivative, and (iii) an amine, wherein the bridge is connected to at least one of the phenol groups at a meta position of said at least one phenol group. The present invention is also directed to a rubber product comprising such a rubber composition and the use of such rubber products in tire components.

Abstract: The present invention is directed to a copolymer of styrene and ?-methylstyrene comprising an alternating sequence of styrene and ?-methylstyrene residues, and a method to make the copolymer.