| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: fluoro-copolymer contains a repeating unit (a) based on tetrafluoroethylene, a repeating unit (b) based on perfluoro(methyl vinyl ether) and a repeating unit (c) based on perfluoro(polyvinyl ether) in molar ratio (a)/(b)/(c) ranging from 40 to 70/from 3 to 57/from 3 to 57. ^ EFFECT: excellent low-temperature characteristics, heat and chemical resistance. ^ 12 cl, 1 tbl, 6 ex |
