Tsrc Corporation

Other

Chi-Ta Tsai

Fu Lin

Chi-Chen Hsieh

Hui-Kai Lin

Bo-Han Lin

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 R, R, Rare each independently selected from a group consisting of oxygen-containing C-Cgroup and nitrogen-containing C-Cgroup, the oxygen-containing C-Cgroup has a carbon atom directly connected to oxygen atom of the alkoxysilane, the nitrogen-containing C-Cgroup has a nitrogen atom directly connected to oxygen atom of the alkoxysilane, and Ris selected from a group consisting of C-Cof alkyl, alkenyl, aryl, and alkoxy.

Conjugated diene rubber modified with polar alkoxysilane, method and composition thereof

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 R, R, Rare each independently selected from the group consisting of C-Cof alkyl and C-Cof alkenyl groups and C-Cof aromatic group, and Ris selected from the group consisting of C-Cof alkyl, C-Cof alkenyl, C-Cof alkoxy groups and C-Cof aromatic group; and (b) adding a second modifier having a structural formula (II) after (a),HO&#x2014;R&#x2014;Y&#x2003;&#x2003;(II)wherein Ris selected from the group consisting of C-Cof alkylene, C-Cof alkenylene, C-Cof alicyclic groups and C-Cof aromatic group, and Y is selected from the group consisting of oxygen-containing C-Cgroup and nitrogen-containing, C-Cgroup, wherein Y has the oxygen atom or the nitrogen atom directly connected to a carbon atom of R.

Modified conjugated diene rubber, method and composition thereof

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.

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Kaohsiung, Taiwan

Chi-Ta Tsai