Abstract: A method of forming modified conjugated diene rubber includes (a) reacting an alkali metal ion-containing conjugated diene rubber with a first modifier having a structural formula (I), wherein R1, R2, R3 are each independently selected from the group consisting of C1-C12 of alkyl and C2-C12 of alkenyl groups and C6-C12 of aromatic group, and R4 is selected from the group consisting of C1-C12 of alkyl, C2-C12 of alkenyl, C1-C12 of alkoxy groups and C6-C12 of aromatic group; and (b) adding a second modifier having a structural formula (II) after (a), HO—R5—Y??(II) wherein R5 is selected from the group consisting of C1-C12 of alkylene, C2-C12 of alkenylene, C3-C12 of alicyclic groups and C6-C12 of aromatic group, and Y is selected from the group consisting of oxygen-containing C1-C12 group and nitrogen-containing, C1-C12 group, wherein Y has the oxygen atom or the nitrogen atom directly connected to a carbon atom of R5.

Abstract: A modified conjugated diene rubber is disclosed. A method for producing the modified conjugated diene rubber includes providing an alkali metal ion-containing conjugated diene rubber; and reacting the alkali metal ion-containing conjugated diene rubber with an alkoxysilane to generate the modified conjugated diene rubber, the alkoxysilane being of the structural formula: wherein R1, R2, R3 are each independently selected from a group consisting of oxygen-containing C2-C12 group and nitrogen-containing C3-C12 group, the oxygen-containing C2-C12 group has a carbon atom directly connected to oxygen atom of the alkoxysilane, the nitrogen-containing C1-C12 group has a nitrogen atom directly connected to oxygen atom of the alkoxysilane, and R4 is selected from a group consisting of C3-C12 of alkyl, alkenyl, aryl, and alkoxy.

Abstract: A process for producing conjugated diene rubber and its composite includes polymerizing a conjugated diene or a conjugated diene and a vinyl aromatic hydrocarbon in a hydrocarbon solution by anionic polymerization to obtain conjugated diene rubber containing alkali metal in the polymer chain end reacting with at least one organic silane compound to become a modified conjugated diene rubber. After or during the modified conjugated diene rubber contacting with large amount of water, solvent and water content are removed from the modified conjugated diene by applicable hot sources, wherein coupling ratio of modified conjugated diene rubber is less than 40%, coupling ratio of modified conjugated diene rubber after contact with water is at least 50% The conjugated diene rubber and composite exhibit storage stability.

Abstract: A modified conjugated diene rubber is disclosed. A method for producing the modified conjugated diene rubber includes providing an alkali metal ion-containing conjugated diene rubber; and reacting the alkali metal ion-containing conjugated diene rubber with an alkoxysilane to generate the modified conjugated diene rubber, the alkoxysilane being of the structural formula: wherein R1, R2, R3 are each independently selected from a group consisting of oxygen-containing C2-C12 group and nitrogen-containing C3-C12 group, the oxygen-containing C2-C12 group has a carbon atom directly connected to oxygen atom of the alkoxysilane, the nitrogen-containing C1-C12 group has a nitrogen atom directly connected to oxygen atom of the alkoxysilane, and R4 is selected from a group consisting of C3-C12 of alkyl, alkenyl, aryl, and alkoxy.

Abstract: A process for producing conjugated diene rubber and its composite includes polymerizing a conjugated diene or a conjugated diene and a vinyl aromatic hydrocarbon in a hydrocarbon solution by anionic polymerization to obtain conjugated diene rubber containing alkali metal in the polymer chain end reacting a with at least one organic silane compound to become a modified conjugated diene rubber. After or during the modified conjugated diene rubber contacting with large amount of water, solvent and water content are removed from the modified conjugated diene by applicable hot sources, wherein coupling ratio of modified conjugated diene rubber is less than 40%, coupling ratio of modified conjugated diene rubber after contact with water is at least 50% The conjugated diene rubber and composite exhibit storage stability.