KR950014170A - Process for producing epoxy resin with high impregnation and high compatibility - Google Patents

Abstract

The present invention is a glycidyl ether type having a high impregnation with a pigment and a high compatibility with a solvent by transforming a glycidyl derivative produced by reaction with an aromatic compound containing active hydrogen reactive to epihalohydrin It relates to a method for producing an epoxy resin. In the modified method, a fixed amount of glycidyl derivatives having different equivalents are added to a predetermined equivalent of glycidyl derivatives to adjust the molecular weight distribution, and a predetermined amount of amines and an ester compound or salt thereof is added to the glycidyl derivatives. It is to provide an entirely new epoxy resin. When the existing glycidyl derivatives are applied in the downstream field, the development of new technology and environmental protection in the epoxy downstream field is not possible due to the impregnation and compatibility of the pigments and solvents used as the main raw materials and the narrow range of targets. There is a major technical obstacle in preparing a high solid type epoxy composition, which is one of the problems. In particular, the degree of impregnation and compatibility with pigments and solvents in the application of paints

A measure of how much less solvent is used, which is a major contributor to pollution. The present invention significantly improves the impregnation of the pigment and the compatibility of the solvent compared to the conventional glycidyl derivative, thereby reducing the viscosity of the existing composition and reducing the viscosity of at least 20% by weight of the solvent used in the existing epoxy resin application composition. The present invention provides an epoxy resin that can obtain a viscosity and can play a leading role in realizing various high-solid compositions in the field of epoxy downstream.

Description

Process for producing epoxy resin with high impregnation and high compatibility

Since this is an open matter, no full text was included.

Claims (5)

A method of at least modifying a glycidyl ether-based epoxy resin and using it to realize high impregnation for a pigment and high compatibility with a solvent in a glycidyl ether-based downstream application, comprising: (1) at least epoxy (2) To a glycidyl ether resin having an equivalent range of 525 to less than 590 g / eq, (2) an epoxy equivalent of 380 to 480 g by adding a glycidyl ether resin having an epoxy equivalent of less than 180 to 200 g / eq to less than 5 to 28% by weight. A method for producing a glycidyl ether resin of less than / eq. (3) A method of producing a modified glycidyl ether epoxy resin having an epoxy equivalent weight of 400 to less than 500 g / eq by adding an amine and an ester compound or salt at 3% by weight or less. A process according to claim 1, wherein in step (1) a glycidyl epoxy resin is used having an epoxy equivalent range of at least 525 to less than 590 g / eq. The process according to claim 1, wherein in step (2) a glycidyl epoxy resin having an epoxy equivalent range of at least 180 to less than 200 g / eq is used at less than 5 to 28 wt%. The method according to claim 1, wherein the glycidyl ether-based epoxy resin is transformed in step (3) using a complex compound of amines and esters or a salt thereof. The method according to claim 4, wherein the glycidyl ether-based epoxy resin is transformed using less than 3% by weight of the amines and ester-based complex compound or salt thereof in step (3). ※ Note The disclosure is based on the initial application.