PROCESS ADDITIVE FOR RUBBER MIXTURES Russian patent published in 2010 - IPC C08K13/06 C08L9/00 C08K5/09 C08K5/05 C08K3/22 

FIELD: chemistry.

SUBSTANCE: invention relates to a process additive for rubber mixtures based on carbon-chain rubber. The additive contains components in form of a product of reacting plant oil production wastes, which are an organic-mineral composition containing 11-47 wt % diatomites and zinc oxide in the presence of triethanolamine and ionol, zinc stearate in amount of 5.0-20.0 wt % and, optionally, technical carbon or silicon-acid filler in amount of 15-25 wt %. This additive has the consistence of a dustless powder which does not cake during storage, is easy to apportion when weighing during production and has low cost.

EFFECT: addition of the disclosed additive to rubber mixtures improves their rheological and processing properties which enables their processing using pressure-die casting methods.

3 cl, 10 ex, 3 tbl