ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER AND SYNTHESIS METHOD THEREOF Russian patent published in 2012 - IPC C08F210/02 C08F214/26 C08F2/06 C08F2/38 C08F4/32 B65D1/00 B65D65/02 H01B3/44 

FIELD: chemistry.

SUBSTANCE: ethylene/tetrafluoroethylene copolymer has content of chlorine atoms of not more than 70 parts per million(ppm) and copolymerisation ratio (molar ratio) of polymerised structural units based on tetrafluoroethylene/polymerised structural units based on ethylene ranging from 40/60 to 70/30. Said copolymer contains polymerised structural units based on one more copolymerisable monomer as an optional component in amount of 0.1-10 mol %, in terms of all polymerisable structural units on the whole, and has volume flow rate ranging from 0.01 to 1000 mm³/s.

EFFECT: obtaining thermally stable ethylene/tetrafluoroethylene copolymer having low content of chlorine atoms.

9 cl, 2 ex