DIALLYL ETHER OF 4-CHLOROPHTHALIC ACID AS A MONOMER FOR PRODUCTION OF THERMOSETTING POLYMERS OF INCREASED FIRE RESISTANCE AND METHOD FOR ITS PRODUCTION Russian patent published in 2021 - IPC C07C69/80 C07C67/10 

FIELD: chemistry.

SUBSTANCE: invention relates to the production of a new chlorine-containing organic compound – di(1,2-propenyl carboxylate)4-chloro-benzene as a monomer for the synthesis of thermosetting polymers, as well as a method for its preparation. Allyl ether of 4-chlorophthalic acid is claimed as a monomer for the production of thermosetting polymers, as well as a method for obtaining diallyl ether of 4-chlorophthalic acid by treating 4-chlorophthalic acid with allybromide at molar ratios of components 1:4÷1:10 at temperatures of 40-50°C. The object of the invention is to expand the range of monomers with reactive terminal allyl groups and polymers obtained on their basis with a predetermined set of necessary properties, operating under the influence of various external conditions.

EFFECT: invention makes it possible to obtain thermosetting polymers with high values of fire, heat and thermal resistance, maintaining good dielectric characteristics in a wide range of temperatures and frequencies, well soluble in conventional organic solvents and processed on existing serial technological equipment.

2 cl, 1 tbl, 4 ex