Rubber preparations

Rubber composition comprises at least one rubber, triacetin, and at least one filler comprising cellulose and/or cellulose derivative. Independent claims are also included for: (1) producing the rubber composition, comprising mixing rubber, triacetin, filler and optionally further additives in a mixing device at 20-200[deg] C, preferably 50-180[deg] C; (2) use of a mixture comprising cellulose and/or cellulose derivative and triacetin as an additive for rubber; and (3) producing of rubber vulcanizates, comprising vulcanizing the rubber composition.