POLYARYL ETHER KETONES CROSS-LINKING Russian patent published in 2022 - IPC C08G65/48 C08G14/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to a group of inventions: a method of producing a polyaryl ether ketone (PAEK)-containing cross-linked moulded article; moulded article based on polyaryl ether ketones (PAEK); and article. This method includes steps of: preparing a mixture containing PAEK and a cross-linking agent; obtaining a moulded article from the mixture and heat treatment of the moulded article at a temperature at which PAEK is cross-linked, as a result of which a cross-linked moulded article is obtained. Cross-linking agent is a diaminophenyl compound representing a or compound. Moulded article contains a cross-linked matrix from PAEK. PAEK is cross-linked with a cross-linking agent L, which is a diphenyl residue of the compound or . PAEK is also linked to phenyl rings of the cross-linking agent by imine bonds. Product represents insulating products, adjusting washers, support rings, valves, connectors, insulators, carabineers, bearings, sleeves, glands and O-rings, pipes and pipelines, cables, windings and jackets, casings for electrical or chemical purposes.

EFFECT: development of a method of producing material based on RAEK, having high heat resistance and having high rigidity and high glass transition temperature at high temperatures.

12 cl, 2 dwg, 3 tbl, 2 ex