| abstract |
An improvement in barrier properties of films and molded articles containing an organic polymer is achieved by incorporation therein of fluorochemicals, fluoropolymers or mixtures thereof, wherein said fluorochemicals or fluoropolymers contain greater than 40% fluorine by weight and exhibit less than 20% weight loss at 165° C., as measured by thermogravimetric analysis at 20° C. per minute in air. The films and molded articles in accordance with the present invention exhibit improved vapor and chemical barrier properties. |