Importance

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Abstract

The present invention relates to an amine curable epoxy resin composition comprising: (A) epoxy resin component comprising: 8-31 wt % of diglycidyl ether of bisphenol A, 3-14 wt % of diglycidyl ether of bisphenol F, 1-5 wt % of monoglycidylether, 0.6-5 wt % of alkylsulphonic phenyl ester, 0.16-1 wt % of wetting and dispersing agent, 0.16-1 wt % of defoamer, and 5-40 wt % of barium sulfate; (B) hardener component comprising: 3-18 wt % of first amine based composition, and 2-12 wt % of second amine based composition, wherein the first amine based composition comprises N,N′-bis(3-aminomethylbenzyl)-2-hydroxytrimethylenediamine represented by the following formula (I) and m-xylylenediamine, and the second amine based composition comprises the reaction products of m-xylylenediamine and styrene represented by the following formula (II) and m-xylylenediamine, wherein A is phenylene, and each of R₁, R₂ and R₃ independently represents hydrogen or phenylethyl; wherein the sum of each component content is 100 wt %, and each weight percentage is based on the total weight of the amine curable epoxy resin composition. The invention also relates to use of the amine curable epoxy resin composition as primer, topcoat and screeds for application on concrete.

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First Claim