Industrial Technology Research Institute

Chien-Pang Wu

Jyh-Horng Wu

Chia-Hao Li

Cheng-Hsing Fan

Ming-Tsong Leu

Kuo-Chen Shih

Hsi-Hsin Shih

Chun-Yen Chen

Chuh-Yung Chen

Shih-Jung Tsai

Li-Cheng Jheng

Chi-Yuan Hung

Yao-Zu Wu

Yao-Tsu Wu

Disclosed is a method for manufacturing a film. 50 wt % to 85 wt % of a first polyester and 50 wt % to 15 wt % of a second polyester are dried and mixed to form a mixture. The first polyester is polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or combinations thereof. The second polyester is copolymerized of 1 part by mole of terephthalic acid, m parts by mole of 1,4-cyclohexanedimethanol (1,4-CHDM), n parts by mole of 1,3-cyclohexanedimethanol (1,3-CHDM), and o parts by mole of ethylene glycol (EG). m+n+o=1, 0&#x2264;o&#x2264;0.4, 0.6&#x2264;m+n&#x2264;1, and 0.06&#x2264;n/m&#x2264;1.31. The mixture is melted and blended to form a polyester composition, which is extruded to form a sheet. The sheet is then biaxially stretched to obtain a film. The biaxially stretched film is then treated with a thermal setting.

Polyester composition, electronic device, and method of forming film

A copolymer is provided, which includes a chemical structure of: R is Calkylene group. T is a terminal group including Calkyl group, Ccycloalkyl group, or Caromatic group. l is 0.05 to 0.3, m is 0.1 to 0.2, n is 0.5 to 0.8, l+m+n=1, x is 40 to 100, and o is 10 to 120. An epoxy resin composite is also provided, which includes 100 parts by weight of epoxy resin and 1 to 20 parts by weight of toughness enhancer such as the above copolymer.

Copolymer and epoxy resin composite

An extended film and a manufacturing method thereof are provided. The extended film includes a poly(lactic acid) and a block copolymer, wherein the block polymer includes a first block, a second block and a third block that connected with each other by chemical bonds. The extended film is formed by steps of mixing poly(lactic acid) and the block copolymer to form a mixture, compressing the mixture to form a board body and extending the board body to form an extended film, thereby forming an extended film having properties of high thermal-resistance and high transparency, the film thus obtained is applicable for packaging use.

Extended film and the manufacturing method thereof

An enterosoluble and intestinal-enzyme-biodegradable material is provided. The enterosoluble and intestinal-enzyme-biodegradable material includes a modified amylopectin, wherein at least one of hydrogen atoms is replaced by &#x2014;CO&#x2014;(CH)&#x2014;COOH (n is 2-4) and the modified amylopectin has an acid value of 35-180 mg KOH/g. The disclosure also provides a method for preparing an enterosoluble and intestinal-enzyme-biodegradable material.

Enterosoluble and intestinal-enzyme-biodegradable materials and method for preparing the same

A polyester film is described, including a first polyester and a second polyester. The weight ratio of the first polyester to the second polyester ranges from 1:1 to 1:3. The glass transition temperature of the first polyester is higher than 140&#xb0; C. and that of the second polyester is lower than 140&#xb0; C.

Polyester film and method of fabricating the same

Growing community of inventors

Xiushui Shiang, Taiwan

Chien-Pang Wu