FIELD: rubber industry.
SUBSTANCE: invention relates to rubber compounds used in tire manufacture, in particular to rubber compounds for manufacturing low-hysteresis treads of fuel-sparing tires showing improved bite properties. Reduced-density curable polydiene-based rubber compound comprises precipitated silica extender, silane binders, and target additives, said silane binders rubber compound containing triethoxysilyl-propyl-mercaptobenzothiazole sulfide combined with bis[3-triethoxysilyl-propyl] tetrasulfide at ratio between 0.3 and 3.3 and in summary proportion to percentage of precipitated silica extender between 0.097 and 0.133.
EFFECT: reduced hysteresis in tread rubber at 60°C, enhanced hysteresis and bite properties at 0°C and simultaneously reduced residual compaction after repetitive deformations and increased wear resistance of rubber.
2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| BLOCKED MERCAPTOSILANE CROSS-LINKING AGENT FOR RUBBER MIXTURES WITH SILICIC ACID AND MINERAL FILLERS | 2004 |
|
RU2267493C2 |
| RUBBER MIXTURE | 2011 |
|
RU2502754C2 |
| RUBBER MIXTURE | 2016 |
|
RU2635803C1 |
| MODIFIER FOR SYNTHETIC CIS-1,4-POLYISOPRENE AND MODIFYING COMPOSITION | 2005 |
|
RU2296125C1 |
| AMINE ANTIOXIDANT FOR RUBBER | 2008 |
|
RU2385335C1 |
| RUBBER COMPOUND | 2022 |
|
RU2780874C1 |
| RUBBER COMPOSITION | 2017 |
|
RU2674192C1 |
| AMINE ANTIOXIDANT FOR RUBBER BASED ON N-2-ETHYLHEXYL- N'-PHENYL-n-PHENYLENEDIAMINE HAVING HIGH STABILITY AND METHOD OF IMPROVING STABILITY THEREOF | 2009 |
|
RU2406720C1 |
| RUBBER MIXTURE | 2011 |
|
RU2495888C2 |
| METHOD OF PRODUCING RUBBER FILLED WITH PRECIPITATED SILICA FILLER IN LIQUID PHASE | 2009 |
|
RU2433146C2 |
