| 摘要 |
Crosslinked organosilicon polysulfide compounds (I) are new. Crosslinked organosilicon polysulfide compounds of formula (R4R5R6Si-X3-((S) y-Y1) m-(S) y-X4-SiR7R8R9) (I) are new. X3, X4 : alkylene; Y1 : aliphatic-, cycloaliphatic- or aromatic group (all divalent, all optionally substituted and all optionally contain heteroatoms); y : 1-6; m : 0-20; R4-R9 : -OH, -O-M, alkyl, alkoxy, phenyl, phenoxy or -O-R5R6Si-X3-((S) y-Y1) m-(S) y-X4-SiR7R8R9 (Ia), where (Ia) is optionally connected with further groups (Ia) through at least one -Si-O-Si- unit; and M : alkali- and alkaline earth metal ion. Independent claims are also included for: (1) use of (I) as a reinforcing additive for silicic acid-containing rubber; (2) a mixture comprising (I) and at least one organosilicon compound of formula (R1R2R3Si-X1-(S) x-X2-SiR1R2R3) (II); (3) a silicic acid-containing rubber mixture comprising (I) or the above mixture as an additive; (4) vulcanizates and rubber moldings obtainable by vulcanization of the above silicic acid-containing rubber mixture; and (5) preparing (I). R1-R3 : 1-6C alkoxy, preferably OCH 3or ethoxy; X1, X2 : 1-6C alkylene, preferably 2-3C alkylene; and x : 1-6, preferably 2-4. |
