LATENT CATALYST FOR THE ACCELERATION OF THE CURING OF MIXTURES OF PHENOLFORMALDEHYDE AND EPOXY RESINS AND METHOD OF ITS MANUFACTURE Russian patent published in 2019 - IPC B01J3/00 C08G8/04 C08G8/28 C08L61/10 

FIELD: chemical industry.

SUBSTANCE: invention describes a latent catalyst for accelerating the curing of a mixture of phenol-formaldehyde resole or novolac resins with epoxy resins, which is a product of the reaction between a strong organic acid selected from the group including benzenesulfonic acid and p-toluenesulfonic acid, and an organic amine, selected from the group including m-phenylenediamine, p-phenylenediamine, p-diaminodiphenylmethane, p-diaminodiphenyloxide. Method for making a latent catalyst is also disclosed.

EFFECT: latent catalyst accelerates the curing of a mixture of phenol-formaldehyde resole or novolac resins with epoxy resins, as well as increased strength.

6 cl, 1 dwg, 2 tbl