Patent ID: 6329481
Filing Date: 2001-12-11
Classification: C08F

Abstract:
ECTFE and ETFE ethylene fluoro-containing copolymers, optionally in the presence of one or more comonomers, the total amount of which is comprised between 0.1 and 10% by moles, having a viscosity between 10.sup.2 and 10.sup.5 Pa.sec with shear rates of 1 sec.sup.-1 measured at the temperature of about 30.degree.-50.degree. C. higher than the second melting temperature, and having a rheologic curve in the diagram shear viscosity/shear-rate having a slope higher than 200, calculated as ratio between the viscosity in Pa.sec and the shear-rate in sec.sup.-1 in the shear-rate range comprised between 1 and 10 sec.sup.-1, said curve having a processability zone with shear-rate values higher than 10 s.sup.-1.