Aqueous epoxy resin compositions
AssigneeHuntsman International LLC
InventorsAlwin Krotzek, Joerg Volle
Life of this patent
Estimating the term…
Abstract
Curable, aqueous epoxy resin composition, comprising a) an epoxy compound, b) an aminic curing agent which is an aqueous solution of a product from the reaction between i) an adduct between a polyamine and a liquid glycidyl ether which is not a glycidyl ether of a polyalkylene glycol, and ii) an epoxidized polyalkylene glycol, and c) from 0.5 to 15 wt.-%, based on the sum of the components b) and c), of a compound of the general formula (I) whereby R1=—H or —C4H9, and x=1, 2, 3 or 4, providing due to the presence of component c) an adjustable and recognizable end of pot life during application, for example coating, adhesive, as flooring, casting, tooling or encapsulating.
Claims9
Curable, aqueous epoxy resin composition, comprising
- a) an epoxy compound,
- b) an aminic curing agent which is an aqueous solution of a product from the reaction between i) an adduct between a polyamine and a liquid glycidyl ether consisting of glycidyl compounds based on bisphenol A and/or bisphenol F, and ii) an epoxidized polyalkylene glycol, and
- c) from 0.5 to 15 wt. %, based on the sum of the components b) and c), of a compound of the general formula (I)
- whereby
- R1=—H or —C4H9, and x=1, 2, 3 or 4.
A method for adjusting the pot life of an aqueous epoxy resin composition comprising adding to the composition a compound of the general formula (I)
- whereby
- R1=—H or —C4H9, and x=1, 2, 3 or 4 and wherein the composition includes
- a) an epoxy compound, and
- b) an aminic curing agent which is an aqueous solution of a product from the reaction between i) an adduct between a polyamine and a liquid glycidyl ether consisting of glycidyl compounds based on bisphenol A and/or bisphenol F, and ii) an epoxidized polyalkylene glycol.
Dependencies are inferred from the claim text.