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
24.08.2016
Patent
Elektronische Ressource
Deutsch
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 |