Tsrc Corporation

Chih-Kuang Tsai

Fu Lin

Chi-Chen Hsieh

Shun-An Liu

Jing-Cherng Tsai

Yen-Hsian Li

Ming-Cheng Chiu

Tsung-Yuan Wang

A hydrogenation catalyst composition for hydrogenating a polymer of conjugated diene is provided. The polymer of conjugated diene is a homopolymer of conjugated diene or a copolymer of conjugated diene and vinyl aromatics. The hydrogenation catalyst composition includes: (a) a titanium compound, (b) a compound of formula (II), where Ris C&#x2dc;Calkyl, alkenyl, amine, ether, ketone or ester groups, Rand Rare C&#x2dc;Calkyl or alkenyl groups, Rand Rare C&#x2dc;Calkyl, alkenyl, amine, ether, ketone or ester groups, n and m are integrals, 1&#x2266;n&#x2266;3, 1&#x2266;m&#x2266;3, and (c) alkyl aluminum.

Hydrogenation catalyst composition and hydrogenation method thereof

A coupled copolymer is provided. The coupled copolymer is coupled by reacting a silane coupling agent with a copolymer, where the copolymer is polymerized by a conjugated diene monomer and a vinyl aromatics monomer, and the silane coupling agent has an alkenyl group and a alkoxy group, and has a chemical Formula (I) as follows: 

Coupled polymers and manufacturing method thereof

A terminating agent and a method for preparing an anionic polymer are provided. The terminating agent includes a carbohydrate, which is a solid substantially insoluble in a solvent and is used for terminating an anionic polymerization of a polymer. Another aspect of the method includes steps which provide an initiator for initiating an anionic polymerization, adding a terminating agent for terminating the anionic polymerization and forming a complex, wherein the terminating agent is a carbohydrate, and an alkali metal ion is removed by a solid-liquid separation process.

Terminating agent for anionic polymerization

A catalyst composition and a method for hydrogenating a polymer having a conjugated diene are provided. The catalyst composition includes (a) a first composition having one of a bis(cyclopendienyl, fluorenyl, indenyl and derivatives thereof) titanium compound and a mixture thereof; (b) a second composition having one selected from the group consisting of a first compound of a formula (II), a second compound of a formula (III) and a mixture thereof: wherein the formula (II) has a chain structure, the formula (III) has a cyclic structure, the R is C&#x2dc;Calkyl, the Xand Xare ones selected from the group consisting of C&#x2dc;Calkyl, C&#x2dc;Ccycloalkoxy, aryl, C&#x2dc;Calkyl aryl and carbonyl, and n&#x3e;1 and m&#x3e;2; and (c) a third composition having an organic metallic compound.

Catalyst composition and method for hydrogenating a polymer having a conjugated diene

A process for hydrogenation of an unsaturated polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (a) a titanium compound; (b) a compound represented by formula (II) or formula (III): wherein Lis a Group IVA element, Lis a Group IVA element, Ris C&#x2013;Calkyl or C&#x2013;Ccycloalkyl, Ris C&#x2013;Calkyl or C&#x2013;Ccycloalkyl, and X, X, and Xcan be the same or different and are C&#x2013;Calkyl, C&#x2013;Calkoxy, C&#x2013;Ccycloalkoxy, phenyl, or phenoxy; and (c) a trialkylaluminum compound.

Hydrogenation catalyst composition and process for hydrogenation of conjugated diene polymer

A process for hydrogenation of a conjugated diene polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (I) a titanium compound; (II) a compound represented by formula (II):wherein L is a Group IVB element, R is C-Calkyl or C-Ccycloalkyl, X can be the same or different and is C-Calkyl, C-Calkoxy, C-Ccycloalkoxy, halogen, or carbonyl; and (III) a trialkylaluminum compound.

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Chih-Kuang Tsai