Industrial Technology Research Institute

Yung-Chan Lin

Chien-Ming Chen

Chih-Hsiang Lin

Shyue-Ming Jang

Sheng-Lung Chang

Jen-Chun Chiu

Cheng-Han Hsieh

Tz-Bang Du

Bor-Wen Chen

Mao-Lin Hsueh

Yi-Zhen Chen

Hsiao-Chun Yeh

En-Nan Liu

An elastomer is provided, which is a product of reacting Clactam, poly(Calkylene glycol), Cdiacid, and multi-ester aliphatic monomer. The Clactam and the poly(Calkylene glycol) have a weight ratio of 20:80 to 80:20. The total weight of the Clactam and the poly(Calkylene glycol) and the weight of the Cdiacid have a ratio of 100:0.5 to 100:10. The total weight of the Clactam and the poly(Calkylene glycol) and the weight of the multi-ester aliphatic monomer have a ratio of 100:0.01 to 100:5.

Elastomer

A polyurethane urea composition and a preparation method thereof are provided. The method includes mixing and reacting an urea and an amine compound to obtain a polyurea oligomer, and mixing and reacting the polyurea oligomer and a cyclic carbonate compound to obtain a polyurethane urea composition having a repeating unit represented by formula I:&#x2014;R&#x2014;U&#x2014;U&#x2014;U&#x2014;R&#x2014;, wherein &#x2003;&#x2003;[formula I]  

Polyurethane urea composition and preparation method thereof

Disclosed is a flame retardant agent, including a nitrogen-based lignin formed by reacting 1 part by weight of lignin, 0.8 to 2.4 parts by weight of a nitrogen-containing compound, and 0.3 to 0.9 parts by weight of an aldehyde under an alkaline condition. The flame retardant agent can be added to thermoplastic or thermosetting resins to form flame retardant materials.

Flame retardant agents and flame retardant materials comprising the same

A method for fabricating a high specific surface area mesoporous alumina is disclosed, which includes the following steps: (a) providing a water solution containing an aluminum salt and a fluoro-surfactant; (b) adding concentrated hydrochloric acid to adjust the PH value of the solution to about 6.0 to 8.0; (c) aging the solution at 70&#xb0; C. to 110&#xb0; C. for 12 to 20 hours; (d) washing the precipitate with water; (e) washing the precipitate with an organic solvent; (f) drying the precipitate; and (g) sintering the precipitate in a furnace of 500&#xb0; C. to 1000&#xb0; C.

Method for fabricating a high specific surface area mesoporous alumina

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Hsinchu, Taiwan

Yung-Chan Lin