FLUORINE-CONTAINING RUBBER-BASE RUBBER MIXTURE Russian patent published in 2005 - IPC

FIELD: rubber industry.

SUBSTANCE: invention relates to the development of fluorine-containing rubber-base rubber mixture used in preparing rubber-technical articles with capacity to work at temperature up to 200°C in oils and fuels medium. Method involves preparing rubber mixture of the following composite, mas. p.p.: fluorine-containing rubber, 90-97; acrylate rubber, 3-10; blocked diamine of the formula: [H₂N-R₁-R-R₂-NH₂] MCl as a vulcanizing agent wherein R₁ and R₂ mean cyclic or aromatic hydrocarbon radicals; R means aliphatic hydrocarbon radical; M means alkaline metals, 2-10; technical carbon, 10-30; vulcanization activating agent, 3-5; acceptor of halogen-hydrocarbons, 3-6, and stearic acid, 1-2. Invention provides enhancing heat stability, resistance against corrosion, to reduce viscosity and to improve technological properties in processing.

EFFECT: improved and valuable properties of rubber mixture.

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