Oligourethanacrylates and methods for their manufacture

• Main Authors: KOLOMAZOV, BORIS I, KEFELI, TAMARA Y, ALTSHULER, JUDIF M, VARLAMOVA, NINA V, EFIMOV, ALEXEI V, STRONGIN, GRIGORY M, BERLIN, ALFRED A
• Format: Patent
• Language: English
• Published: 10.02.1981
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A method for preparing oligourethanacrylates having the general formula +TR where is a radical of a telogen; X is H, CH3 or a halide; R is a radical of glycol, bis-phenol, amino alcohol; R' is a radical of polyamine: R'' is a radical of polyol; R'' is R' if the telogen contains R''' is R'' if telogen contains-N(Y)H group; Y is a substitute at the nitrogen atom in the telogen selected from the group consisting of a hydrogen atom and an aryl radical; n is the number characterizing the degree of polycondensation of the oligourethanacrylate equal to zero, unity, or a whole number greater than unity, consisting in carrying out a reaction of an non equilibrium polycondensation of chloroformiates of polyols with polyamines and telogens, which are chloroformates of monoesters of alkyleneglycols and acids of the acrylic series, chloroformates of monoesters of bis-phenols and acids of the acrylic series, monoaminoalkyl esters of acids of the series, N-substituted monoaminoalkyl esters of acids of acrylic series, in a medium of organic solvents or in a system water-organic solvent, in the presence of acceptors of hydrogen chloride which is liberated in the reaction.