| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a partial crystalline fluororesin with excellent adhesion property with the other material and a small fuel permeation speed. <P>SOLUTION: The partial crystalline fluororesin contains a tetrafluoroethylene unit, a repetition unit derived from an ethylenically unsaturated monomer represented by general formula (1): CX<SP>1</SP>X<SP>2</SP>=CX<SP>3</SP>CF<SB>2</SB>X<SP>4</SP>(1) (wherein, X<SP>1</SP>, X<SP>2</SP>and X<SP>3</SP>are the same or different and are each H, F or C; and X<SP>4</SP>represents F or Cl, provided that at least one of X<SP>1</SP>, X<SP>2</SP>and X<SP>3</SP>is H), and an ethylenically unsaturated monomer unit as an optional component other than the tetrafluoroethylene unit and the repetition unit derived from the ethylenically unsaturated monomer represented by general formula (1). In the fluororesin, the tetrafluoroethylene unit and the ethylenically unsaturated monomer unit represented by general formula (1) are 80-100 mol% relative to the whole monomer unit in total, and the ethylenically unsaturated monomer unit as the optional component is 20-0 mol%. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
