| abstract |
The present invention provides a partially crystalline fluororesin having a low melting point, excellent adhesion to other materials, and a low fuel permeation rate. The invention relates to 80-95 mol% tetrafluoroethylene units; 5-20 mol% of the following general formula (1) CF 2 = CF-Rf 1 (1) (Wherein Rf 1 represents —CF 3 or —ORf 2 , Rf 2 represents a perfluoroalkyl group having 1 to 5 carbon atoms), and a repeating unit derived from an ethylenically unsaturated monomer represented by When, An ethylenically unsaturated monomer unit as an optional component other than the repeating unit derived from 0 to 5 mol% of the tetrafluoroethylene unit and the ethylenically unsaturated monomer represented by the general formula (1); Including A partially crystalline fluororesin having at least one adhesive functional group selected from the group consisting of a carbonyl group, an amino group, an oxazolyl group, a glycidyl group, an epoxy group, and a hydroxyl group. [Selection figure] None |