Use of polyorganosiloxanes in processing and vulcanising rubber

摘要

Use of a polyorganosiloxane with at least three siloxane units comprising at least one organic component R1, as an additive in the processing of rubber, is claimed, where R1 comprises at least one carbon-carbon multiple bond and the presence of at least one hydrocarbon fraction with a chain length of 5-50 carbon atoms in the polyorganosiloxane is excluded. Independent claims are also included for: (1) a master-batch comprising at least one rubber and at least one polyorganosiloxane; (2) a mixture comprising at least one solid support material and at least one polyorganosiloxane; (3) vulcanization of rubber, comprising carrying out peroxide vulcanization of vulcanization mixture, which comprises at least one peroxide-crosslinkable rubber, at least one peroxide vulcanizing agent and at least one polyorganosiloxane; and (4) a vulcanized rubber produced by the above mentioned method.