Great Eastern Resins Industrial Co., Ltd.

Chang Chun Plastics Co., Ltd.

Ching Hsuan Lin

Shenghong A Dai

Kuen-Yuan Hwang

An-Pang Tu

Ping-Chieh Wang

Kevin Liao

Chun Yu Tseng

Jung-Yang Yang

Wei Ming Nien

Wen Chen Pan

The present invention relates to a phosphinated poly(2,6-dimethy phenylene oxide)oligomer, specifically an unsaturated group-containing phosphinated poly(2,6-dimethy phenylene oxide)oligomer, and processes for producing the same. A thermoset produced from the unsaturated group-containing phosphinated poly(2,6-dimethy phenylene oxide)oligomers according to the present invention exhibits flame retardancy and has a low dielectric constant and dissipation factor and a high glass transition temperature.

Phosphinated poly(2,6-dimethyl phenylene oxide) oligomers and thermosets thereof

Method for producing flexographic printing plates from a photopolymerizable flexographic printing plate with a dimensionally stable support, photopolymerizable, relief-forming layer(s), and a digitally imagable layer. The method comprises (a) producing a mask by imaging the digitally imagable layer, (b) exposing the flexographic printing plate with a plurality of UV-LEDs on a UV-LED strip through the mask with actinic light, and photopolymerizing the image regions of the layer, and (c) developing the photopolymerized layer. In the UV-LED strip or in a separate strip, at least one ultrasonic sensor is arranged for determining the thickness of the flexographic printing plate for exposure. Depending on the measured thickness of the flexographic printing plate, the exposing of the flexographic printing plate is controlled in respect of: (i) number of exposure steps, exposure intensity, energy input per exposure step, duration of the individual exposure steps, and/or overall duration of exposure.

Multi-functional carbamate having soft-segments, polyisocyanate obtained via subsequent non-phosgene synthesis methods, urethane prepolymer and elastomeric urethane having soft-segments derived therefrom, and preparation method thereof

The present invention is directed to a process for preparing amides or polyamides by replacing isocyanate starting materials of a catalyzed thermal reaction with aromatic carbamates. Through the catalyzed thermal process involving a non-isocyanate precursor of the present invention, efficiency for producing amides or polyamides can be significantly improved, and the impure side products produced from a side reaction of isocyanate can be greatly curtailed. Hence, amides or polyamides of high purity and yield can be achieved. The invention also relates to a process for preparing aromatic carbamates, the new non-isocyanate precursors for amides or polyamides.

Method for producing amides or polyamides by using aromatic carbamates by way of isocyanates as precursors through catalyzed thermal processes and method for producing aromatic carbamate precursors from aromatic amines

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Taichung, Taiwan

Ching Hsuan Lin