FUNCTIONALISED NITRILE RUBBERS AND THE PRODUCTION THEREOF

摘要

Preparing functionalized nitrile rubber, comprises contacting nitrile rubber with a metathesis catalyst comprising a complex catalyst based on a metal of 6th or 8th subgroup, with at least one carbene-like ligand that is bonded to the metal, in presence of at least one functionalized olefin comprising propene derivative (I) or butene derivative (II). Preparing functionalized nitrile rubber, comprises contacting nitrile rubber with a metathesis catalyst comprising a complex catalyst based on a metal of 6th or 8th subgroup, with at least one carbene-like ligand that is bonded to the metal, in presence of at least one functionalized olefin comprising propene derivative of formula (H 2C=CH-CH 2-X) (I) or butene derivative of formula (Y1-CH 2-CH=CH-CH 2-Z) (II). X : OR1, O-(CH 2-CH 2-O) n-R2, O-(CH 2-CH(CH 3)-O) n-R3, O-C(=O)-R4, 6-18C aryl (substituted by at least one group OR5) or NH-C(=O)-OR6; R1-R12 : H, 1-18C alkyl, 7-24C aralkyl, phenyl, naphthyl or fluorenyl; n : 1-20, preferably 1-6; and Y1, Z : OR7, O-(CH 2-CH 2-O) n-R8, O-(CH 2-CH(CH 3)-O) n-R9, O-C(=O)-R10, 6-18C aryl (substituted by at least one group OR11) or NH-C(=O)-OR12. Independent claims are also included for: (1) the functionalized nitrile rubber comprising repeating units that are derived from at least one conjugated diene and at least one alpha ,beta -unsaturated nitrile, and contains end groups X or Y1 and Z, where the carbon-carbon double bonds of the polymerized diene monomers are optionally partially or completely hydrogenated; (2) a vulcanizable mixture comprising (i) at least one above functionalized nitrile rubber, (ii) at least one crosslinking agent or crosslinking system, and optionally (iii) at least one further rubber additive; (3) producing vulcanizates, comprising crosslinking the above vulcanizable mixture by increasing the temperature, preferably in a molding process, using injection molding; (4) vulcanizate based on the functionalized nitrile rubber; and (5) block copolymers containing at least one block based on the functionalized nitrile rubber.