LIQUID OLIGOMER BASED ON MODIFIED DICYANOGEN ETHER OF DIPHENYLOL PROPANE Russian patent published in 2011 - IPC C08G73/06 

FIELD: construction.

SUBSTANCE: invention relates to the field of production of a liquid thermosetting oligomer on the basis of 2,2-bis(4-cyanatiphenyl)propane modified with a polysulfide rubber used as a filling or impregnation compound, and also a polymer base of a binder for structural glass-fibre plastics of electrotechnical purpose. A liquid oligomer is proposed based on dicyanogen ether of diphenyl propane produced by thermal oligomerisation of 2,2-bic(4-cyanatophenyl)propane (70-90 wt parts) in the presence of a modifying additive - a polysulfide rubber of thiocol II-NT (10-30 wt parts).

EFFECT: higher pot life and phase resistance of oligomer down to negative temperatures for increased reliability of polymer electric insulation.

1 cl, 1 tbl, 5 ex