Patent ID: 9518174
Filing Date: 2016-12-13
CPC Classification: B60C,C08K,C08L

Claim Text:
1. A rubber compound production method comprising a first mixing step wherein at least one cross-linkable unsaturated-chain polymer base, an accelerant, silica, and a silane bonding agent in the alkoxymercaptoalkyl-silane class are mixed together; and a following mixing step wherein a curing system comprising at least sulphur and accelerants is added and mixed to the compound being produced; and wherein, in said first mixing step, 0.2 to 5 phr of said accelerant in said first mixing step, and 0.5 to 6 phr of a zinc salt of a fatty acid with a carbon atom number of C8 to C24 are added; said accelerant being from the group consisting of benzothiazyl-cyclohexyl-sulphenamide (CBS), benzothiazole disulphide (MBTS), N-tert-butyl-2- benzothiazylsulphenamide (TBBS), 2- mercaptobenzothiazole (MBT), zinc salts of 2-mercaptobenzothiazole (ZMBT), benzothiazyl-2-dicyclohexyl-sulphenamide (DCBS), diphenylguanidine (DPG), triphenylguanidine (TPG), diorthotolyl guanidine (DOTG), o-tolylbiguanidine (OTBG), ethylene thiourea (ETU) and their mixtures.