| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: described is a polymer composition formed from molten mass, containing: (a) non-fluorinated polymer formed from molten mass; and (b) fluoropolymer obtained from copolymerisation (1) from 20% to 30% of total weight of vinylidene fluoride; (2) one or more fluorinated monomers which are not vinylidene fluoride, and (3) one or more modifiers which are selected from (i) olefins containing a bromine or iodine atom bonded to the carbon atom of the olefin double bond, (ii) olefins of formula (IV): XaÇè2C = CXa-Rf-(Xb)r (IV), where each Xa can independently represent hydrogen, fluorine, chlorine, Rf represents a perfluoroalkylene group, perfluorooxyalkylene group or perfluoropolyester group; Xb represents Br or I or r equals 1, 2 or 3, and (iii) a mixture of these substances; also content of one or more modifiers is not more than 1 wt %, is sufficient for formation of a long, branched chain of a fluoropolymer without formation of gel, where the composition contains 0.005-50 wt % fluoropolymer, the non-fluorinated polymer being that, which does not contain fluorine atoms or contains fluorine atoms with ratio of fluorine atoms to carbon atoms less than 1:1, the fluoropolymer has a fluorinated chain in which the ratio of fluorine atoms to carbon atoms is at least equal to 1:1. Also described is a polymer fusible additive composition for use as an additive during extrusion of non-fluorinated polymer. ^ EFFECT: increased effectiveness of the composition. ^ 10 cl, 12 ex, 8 tbl |
