VINYLIDENE FLUORIDE-HEXAFLUOROPROPYLENE- -CONTAINING HARDENED COPOLYMERS Russian patent published in 2003 - IPC

FIELD: polymers. SUBSTANCE: invention relates to hardened fluoroelastomers, namely, copolymers of vinylidene fluoride and hexafluoropropylene. Copolymers comprise the following components: 60-85 mole % of vinylidene fluoride and 15-40 mole % of hexafluoropropylene and they are hardened by using 0.5-15 p. per 100 p. of copolymer and 0.005-5.0 p. per 100 p. of hardening copolymer and accelerating agents. Hardened copolymers are the high-stable spatial structure with residual compression deformation less 20%. Articles made on basis of copolymers exhibit excellent thickening properties measured at high temperature. Copolymers can be used for making industrial articles as, for example, laying, thickeners for shafts, hoses and laying with metallic inserts. EFFECT: improved properties of articles. 19 cl, 5 tbl, 3 ex