Polyester/polyphenylene ether blends

Details Polyester/polyphenylene ether blends Polyester/polyphenylene ether blends

C - Chemistry, Metallurgy

08

L

C08L 71/12 (2006.01) C08L 67/02 (2006.01)

Patent

CA 2136336

This invention relates to thermoplastic molding compositions comprising the following: (a) 5 to 95 % by weight of a polyester or a polyester, comprising: repeat units derived from terephthalic acid, ethylene glycol, and 1,4-cyclohexanedimethanol wherein the mole ratio of ethylene glycol to 1,4-cyclohexanedimethanol is from 66:34 to 98:2, said polyester having an I.V. of 0.3 dL/g to 1.2 dL/g, and (b) 5 to 95 % by weight of a polyphenylene ether. The compositions are useful for producing clear articles by injection molding or extrusion.

L'invention se rapporte à des compositions de moulage thermoplastique comprenant les constituants suivants: (a) 5 à 95 % en poids d'un polyester contenant: des unités de répétitions dérivées d'acide térephtalique d'éhylèneglycol, et de 1,4-cyclohexanediméthanol, le rapport molaire d'éhylèneglycol/1,4-cyclo-hexanediméthanol étant compris entre 66:34 et 98:2, ledit polyester présentant une viscosité inhérente de 0,3 dL/g à 1,2 dL/g, et (b) de 5 à 95 % en poids d'un polyphénylène éther. Ces compositions peuvent être utilisées pour produire des articles transparents par moulage par injection ou extrusion.

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