Abstract: An epoxy resin composition comprising(1) about 20 to about 80% by weight of a solid epoxy resin, and(2) about 80 to about 20% by weight of a solid resole-type phenolic resin having a softening point of about 70.degree. to about 90.degree. C., a gel time at 150.degree. C. of at least about 80 seconds and a methylol index of about 25 to about 45, said phenolic resin being a condensation product of 1 mol of a phenol with 1 to about 4 mols of an aldehyde.

Abstract: A method of inhibiting corrosion of metals comprising applying to a metal surface in an effective concentration a saturated aliphatic triamine of 9 carbon atoms having at each terminal position a primary amino group and being branched in the 4-position of the main chain Such specific triamines include 1,3,6-triaminomethylhexane and 1,2,3-triaminoethylpropane. Addition products and condensation products derived from these organic triamines are also effective. The present anti-corrosive agents show a remarkable rust preventive effect to metals even when used in a small amount and are non-toxic.

Abstract: A method of inhibiting corrosion of metals comprising applying to a metal surface in an effective concentration a saturated aliphatic triamine of 9 carbon atoms having at each terminal position a primary amino group and being branched in the 4-position of the main chain. Such specific triamines include 1,3,6-triaminomethylhexane and 1,2,3-triaminoethylpropane. Addition products and condensation products derived from these organic triamines are also effective. The present anti-corrosive agents show a remarkable rust preventive effect to metals even when used in a small amount and are non toxic.

Abstract: An epoxy resin aqueous composition of the room-temperature hardening type having improved rust preventive, anti-corrosive and weatherproof properties, which comprises an aqueous dispersion containingA. an epoxy resin having at least two epoxy groups per molecule, andB. a condensation product prepared by condensingI. a polyamine mixture of 4-aminomethyl-octamethylene-diamine and a polyalkylenepolyamine represented by the general formula (III)h.sub.2 n -- r -- nh -- (rnh).sub.n -- H (III)wherein R is a straight-chain alkylene group having 2 to 4 carbon atoms and n is 0 or an integer of 1 to 6, withIi. a reaction product ofA. an .alpha.,.beta. -unsaturated carboxylic acid or an ester thereof represented by the following general formula (I) or (II)y -- ch = cx -- y (i)y -- c .tbd.

Abstract: An epoxy resin composition having excellent curability comprising 100 parts by weight of an epoxy resin having at least two epoxy groups per molecule and about 1 to 300 parts by weight of an amide derivative of 4-aminomethyl-1,8-diaminooctane.