The object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a molded article, a laminated article, a hose for industrial use, a tube for industrial use, a fuel hose and a fuel tube comprising the thermoplastic polymer composition. Further object of the present invention is to provide a process for preparing a thermoplastic polymer composition. The thermoplastic polymer composition comprises a fluororesin (A) comprising a fluorine-containing ethylenic polymer (a) and a crosslinked fluororubber (B) in which at least a part of at least one kind of fluororubber (b) is crosslinked, and a weight ratio of the fluororesin (A) to the crosslinked fluororubber (B) is 85/15 to 40/60, a fuel permeation coefficient of a molded article obtained from the composition is not more than 40 g· mm/m2· day and a tensile modulus of elasticity of the molded article is not more than 400 MPa.
                            本发明的目的是提供一种热塑性聚合物组合物,这种组合物具有柔韧性,能够熔融成型,并具有优异的耐热性、耐
化学性和耐油性。本发明的另一个目的是提供一种模塑制品、层压制品、工业用软管、工业用管、燃料软管和燃料管,这些制品均由热塑性聚合物组合物构成。本发明的另一个目的是提供一种制备热塑性聚合物组合物的工艺。该热塑性聚合物组合物包括由含
氟乙烯聚合物(a)和交联
氟橡胶(B)组成的
氟树脂(A),其中至少一种
氟橡胶(b)的至少一部分被交联、
氟树脂(A)与交联
氟橡胶(B)的重量比为 85/15 至 40/60,由该组合物得到的模塑制品的燃料渗透系数不超过 40 克-毫米/平方米-天,模塑制品的拉伸弹性模量不超过 400 兆帕。