Industrial Technology Research Institute

Wen-Ling Lui

Chih-Hsiang Lin

Kung-Lung Cheng

Hsin-Ching Kao

Shih-Jung Tsai

Wei-Ling Lin

Woan-Shiow Tzeng

In-Mau Chen

Shu-Chen Lin

A thermal responsive, water soluble polymer. The polymer comprises the co-polymerization product of: (a) 5&tilde;95 wt % of N-isopropyl acrylamide (NIP); (b) 0.1&tilde;80 wt % of 1-vinyl-2-pyrrolidinone (VPD); and optionally, (c) 0.1&tilde;30 wt % of acrylic acid (AA). As the proportion of component (b) VPD increases, the Lower Critical Solution Temperature (LCST) and water solubility of the polymer increases. On the other hand, as the proportion of component (c) AA increases, the Lower Critical Solution Temperature (LCST) decreases and the COOH reactive groups increases, which impart high reactivity to the copolymer. By adjusting the proportion of the monomers, a broad range of LCST can be manipulated from about 20 to 80&deg; C.

Thermal responsive, water-soluble polymers

Cycloaliphatic polyimide, a method for producing the same, and its use

The present invention discloses a resin composition reclaimed from compact disk waste having improved mechanical characteristics. The resin composition in accordance with the present invention comprises (a) compact disk waste comprising polycarbonate (PC) as a primary component; and (b) a coupling agent containing two or more reactive functional groups. Optionally, the resin composition of the present invention may further comprise (c) an impact-resistant thermoplastic resin, engineering plastic grade PC or waste thereof, or recycled bottle grade PC.

Resin composition reclaimed from compact disk waste

Growing community of inventors

Ilan, Taiwan

Wen-Ling Lui