Chang Chun Petrochemical Co., Ltd.

Shih Yuan Su

Chih Chieh Liang

Wen Hsin Lin

Hou Hsi Wu

The instant disclosure relates to saponified pellets of an ethylene-vinyl ester based copolymer as well as a film and a multilayer structure formed therefrom. The saponified pellets of an ethylene-vinyl ester based copolymer has an ethylene content of 24-35 mole %, and the pellets have a turbidity of less than 300 NTU when dissolved in a 60% (w/w) methanol aqueous solution; or the pellet has an ethylene content of 36-48 mole %, and the pellets have a turbidity of less than 200 NTU when dissolved in a 80% (w/w) methanol aqueous solution. The present invention controls the amount of aggregates by controlling the turbidity of the saponified pellets of an ethylene-vinyl ester based copolymer dissolved in methanol aqueous to reduce the amount of gel produced after film formation.

Ethylene vinyl ester based copolymer saponified pellets and film containing the same

Provided is an ethylene-vinyl alcohol copolymer composition having improved oxygen barrier properties, wherein the ethylene-vinyl alcohol copolymer composition comprises an ethylene-vinyl alcohol copolymer; and a manganese content of about 0.01 ppm to 0.49 ppm.

Ethylene-vinyl alcohol copolymer composition with improved oxygen barrier properties

The instant disclosure relates to ethylene vinyl alcohol copolymer resin composition and/or pellets thereof including one or more fluorine-containing micro-particles. The ethylene vinyl alcohol copolymer resin compositions and/or pellets thereof may have a melting pressure of 1.7 to 7.0 MPa at a shear rate of 20 sand a melting point temperature of 190&#xb0; C. EVOH films formed from the EVOH may have a Charpy impact strength of at least 2.3 KJ/maccording to ISO 179-1 at 23&#xb0; C. and an elongation at break of at least 17.8% according to ISO 527-2 at 23&#xb0; C.

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Taipei, Taiwan

Shih Yuan Su