RUBBER BLENDS CONTAINING SILICIC ACID AND COMPRISING ADDITIVES CONTAINING SULPHUR
申请人:LANXESS Deutschland GmbH
公开号:US20150133581A1
公开(公告)日:2015-05-14
The present invention relates to a silica-containing rubber mixture produced from at least one rubber, one sulphur-containing alkoxysilane, one crosslinking agent, one filler, and optionally further rubber auxiliary products and from 0.1 to 15 phr of a polysulphide additive of the formula (I)
A-S—(S)
x
—S—Y—S—(S)
x
—S-A (I)
where
x is 0, 1 or 2,
Y is an aliphatic, cycloaliphatic or aromatic group that is optionally substituted or else comprises heteroatoms and
A is an optionally substituted hydroxyethyl, carboxyaryl, hydroxyaryl, carboxyalkyl or thionamide moiety,
and comprises from 0.1 to 15 parts by weight, based on 100 parts by weight of rubber used, of 1,6-bis(N,N-dibenzylthiocarbamoyldithio)hexane (CAS No.: 151900-44-6).