| 摘要 |
The process for producing mineral fillers with graft peroxy groups for polymers according to the present invention comprises treatment of mineral fillers, at a temperature of from 50 to 150 DEG C. under a pressure of from 1.33.102 to 4.105 Pa (lmmHg to 4 atm), with an organosilicon compound of the formula: R4-ySiXy or R'R3-zSiXz, wherein R is vinyl, allyl, norbornyl, X is chlorine, an alkoxy or acyloxy, y=1-3, z=1-2, R' is methyl, ethyl, propyl, whereafter the mineral filler containing graft unsaturated groups is separated from the reaction mixture, dried and ozonized with an ozone-oxygen mixture containing 4 to 6 vol.% of ozone at a temperature of from -40 DEG to +20 DEG C. The process for producing mineral fillers with graft peroxy groups for polymers is technologically simple and makes it possible to perform extending and grafting of a polymer at lower temperatures (50 DEG -140 DEG C.). |
