Fluorocopolymer

   
   

A fluorocopolymer which comprises (A) polymerized units based on tetrafluoroethylene, (B) polymerized units based on ethylene and (C) polymerized units based on itaconic anhydride or citraconic anhydride, wherein the molar ratio of (A)/(B) is from 20/80 to 80/20, and the molar ratio of (C)/((A)+(B)) is from 1/10000 to 5/100, and which has a volume flow rate of from 1 to 1000 mm.sup.3 /sec. The fluorocopolymer is excellent in the fuel barrier properties and in the adhesive properties to a non-fluorinated polymer.

Un fluorocopolymer que abarca (a) polimerizó las unidades basadas en el tetrafluoroethylene, (b) las unidades polimerizadas basadas en el etileno y (c) las unidades polimerizadas basadas en el anhídrido itacónico o el anhídrido citraconic, en donde el cociente molar de (A)/(B) es a partir la 20/80 a 80/20, y el cociente molar de (C)/((A)+(B)) es a partir la 1/10000 a 5/100, y que tiene un caudal de volumen a partir de 1 a 1000 mm.sup.3 /sec. El fluorocopolymer es excelente en las características de la barrera del combustible y en las características adhesivas a un polímero no-fluorado.

 
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