Silicic acid-containing rubber mixture comprises at least one rubber, a sulfur-containing alkoxysilane, a crosslinker, a filler, optionally further rubber auxiliary products, 0.1-15 pts. wt. a polysulfide additive (I), based on 100 pts. wt. rubber, and 0.1-15 pts. wt. 1,6-bis(N,N-dibenzylthio-carbamoyldithio)hexane, based on 100 pts. wt. rubber. Silicic acid-containing rubber mixture comprises at least one rubber, a sulfur-containing alkoxysilane, a crosslinker, a filler, optionally further rubber auxiliary products, 0.1-15 pts. wt. a polysulfide additive of formula (A-S-(S) x-S-B1) (I), based on 100 pts. wt. rubber, and 0.1-15 pts. wt. 1,6-bis(N,N-dibenzylthio-carbamoyldithio)hexane, based on 100 pts. wt. rubber. x : 0-4; A : R1O-C(=O)-(CH(R6)) y-CH(R2)-, benzoic acid moieties of formula (Ia) or phenol moieties of formula (Ib); B1 : R4O-C(=O)-(CH(R7)) z-CH(R3)-, benzoic acid moieties of formula (Ia) or phenol moieties of formula (Ib); R1-R4, R6-R7 : H, 1-6C alkyl, 5-6C cycloalkyl, 6-10C aryl, -CH 2-OR5, -CH 2-CH 2-OR5, -NHR5, -COR5, -COOR5 or -CH 2COOR5; R5 : H, 1-6C alkyl, 5-6C cycloalkyl, 6-10C aryl or 1-6C acyl; and y, z : 0-2. Independent claims are also included for: (1) preparing the silicic acid-containing rubber mixture by a mixing process with several mixing steps, comprising mixing at least one rubber, at least one hydroxy group-containing oxidic filler, at least one sulfur-containing alkoxysilane, at least one vulcanization additive, at least one rubber additive, at least one polysulfide additive, and 1,6-bis(N,N-dibenzyl-thiocarbamoyldithio)hexane in first mixing step; and (2) an additive mixture comprising (I) and 1,6-bis(N,N-dibenzylthio-carbamoyldithio)hexane. [Image].
KIESELSÄUREHALTIGE KAUTSCHUKMISCHUNGEN MIT SCHWEFELHALTIGEN ADDITIVEN
RUBBER BLENDS CONTAINING SILICIC ACID AND COMPRISING ADDITIVES CONTAINING SULPHUR
MÉLANGES DE CAOUTCHOUCS CONTENANT DE L'ACIDE SILICIQUE ET RENFERMANT DES ADDITIFS SOUFRÉS
2016-08-24
Patent
Electronic Resource
German
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS , Acyclische oder carbocyclische Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |