EPOXY RESIN SYSTEMS Russian patent published in 2021 - IPC C08L63/00 C08G59/36 C08G59/56 C08G59/68 C08K5/53 C09K21/14 C08J5/24 

FIELD: resins.

SUBSTANCE: invention relates to two variants of an epoxy resin system for use in manufacture of items. The system essentially consists of a) an epoxy resin mixture consisting essentially of an epoxy resin constituting an aromatic epoxy resin based on aromatic compounds selected from the group consisting of bisphenol F, bisphenol A, 1,1-bis(4-hydroxyphenyl)ethane, 1,1-dichloro-2,2-bis(4-hydroxyphenyl)ethene, phenolic novolaks, phenolic resins or combinations thereof, a first curing agent selected from the group of polyarylenealkylphosphonate, polyarylene arylphosphonate and combinations thereof, an optional monofunctional epoxy additive and an additive selected from the group consisting of an additional phosphorus compound, a diluting agent and combinations thereof, and b) a second hardening agent selected from the group consisting of a compound with an imidazole group, a compound with a condensed imidazole ring, an amine and combinations thereof.

EFFECT: proposed system allows to produce composite materials and interiors applicable in the aerospace field.

12 cl, 4 tbl, 4 ex