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.

Abstract: Curing agent for epoxy resins, consisting of A) 1%-99% by weight of an adduct obtainable by reacting a1) a polyethylene polyamine having up to six nitrogens in the molecule with a2) a monoglycidyl ether, the adduct of a1) and a2) preferably being isolated by removal of the excess polyethylene polyamine, and B) 99%-1% by weight of an adduct obtainable by reacting b1) a diamine or polyamine with b2) styrene, and also curable compositions further comprising an epoxide compound, and the use of these curable compositions for producing moldings and sheetlike structures, and also for applications in the adhesives and sealants sector and for epoxy-resin mortars.

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.

Abstract: Curing agent for epoxy resins, comprising A) 1-99 wt % of an adduct obtainable by reaction of a1) a polyethylene polyamine having up to five nitrogen atoms in the molecule, with a2) a monoglycidylether, wherein the adduct of a1) and a2) is isolated by removing the excessive polyethylene-polyamine, and B) 99-1 wt % of an amine compound having at least two reactive amine hydrogen atoms in the molecule, as well as curable compositions additionally comprising an epoxy compound and the use of said curable compositions for the preparation of moulded articles and sheet materials, as well as for applications in the field of adhesives and sealing compounds.

Abstract: Special amine compositions comprising a) 30-70% by weight of a polyetherdiamine of the general formula (I) in which n is from 10 to 70, b) 3-30% by weight of a monoamine of the general formula R1—NH2, in which R1 is the straight-chain or branched, saturated or preferably unsaturated radical of a hydrocarbon having 5 to 22 carbon atoms or of a monofunctional polyetheramine having a molecular weight of up to 400 g/mol and c) 3-30% by weight of a di- or triamine and d) 5-40% by weight of an alkylphenol of the general formula (II) in which R2 is the straight-chain, branched or cyclic, saturated or unsaturated radical of a hydrocarbon having 5 to 14 carbon atoms, and curable epoxy resin compositions comprising these special amine compositions, the use of which results in thermosets which have a low degree of crosslinking, are resilient even at low temperatures and are resistant to chemical compositions, and the production of shaped articles and coatings using these curable compositions.

Abstract: Curing agent for epoxy resins, comprising A) 1-99 wt % of an adduct obtainable by reaction of a1) a polyethylene polyamine having up to five nitrogen atoms in the molecule, with a2) a monoglycidylether, wherein the adduct of a1) and a2) is isolated by removing the excessive polyethylene-polyamine, and B) 99-1 wt % of an amine compound having at least two reactive amine hydrogen atoms in the molecule, as well as curable compositions additionally comprising an epoxy compound and the use of said curable compositions for the preparation of moulded articles and sheet materials, as well as for applications in the field of adhesives and sealing compounds.

Abstract: Curing agents for epoxy resins, consisting of A) a polyaminoamide adduct obtainable by reacting a1) a polyaminoamide containing imidazoline groups and prepared from a1-1) a polyethylenepolyamine having 3 or more nitrogen atoms in the molecule, and a1-2) a monofunctional fatty acid, with a2) a monofunctional, aromatic epoxide compound, and also curable compositions further comprising an epoxide compound, and the use of these curable compositions for producing mouldings and sheetlike structures, and also for applications in the adhesives and sealants sectors and for epoxy resin mortars, matrix resins, tooling resin or as coating materials, particular for wet concrete.

Abstract: Polyurea spray system containing a polyisocyanate, a polyamine and an imidazoline-containing polyaminoamide as chain extender, suitable for use as internal coating of drinking water pipelines and storage tanks.

Abstract: The present invention relates to adducts obtainable by reaction of: A) an amine compound containing 2 or more than 2 amino groups: with B) a polyalkylene glycol monoglycidyl ether of general formula (I), in which R independently of one another (for n>1), is an —H or —CH, radical, and n=1 to 50, characterized in that the reaction ratio of components A) and B) is selected in such a way that the resultant adduct contains 2 or more than 2 amine hydrogen groups: to curable compositions based on these adducts with epoxy resins, and to the use of these curable compositions as casting resin, adhesive, matrix resin, tooling resin or as coating composition, in particular for self-flowing coatings.

Abstract: A curable composition comprising a) an epoxy resin having on average more than one epoxide group per molecule and b1) an alkyldipropylenetrimine of general formula (I) and/or b2) an adduct of an alkyldipropylenetrimine of general formula (I) with b3) an epoxide compound having on average at least one epoxide group per molecule in which R is hydrocarbon radical 8 to 22 carbon atoms, and the use of this composition for mineral and metallic substrates.

Abstract: Curable mixtures based on epoxy resins and amine hardeners, if required additionally using solvents, water, plasticisers, UV stabilisers, colourants, pigments, fillers, which mixtures contain as accelerator at least one compound of general formula (I), wherein R1, R2, R3, R4 are each independently of one another H or an unbranched or branched alkyl radical containing 1 to 15 carbon atoms, and n is 0 to 10.

Abstract: The invention relates to curable compositions comprising a) an epoxy resin, b) an aminic curing agent and c) a curing accelerator, which comprise as curing accelerator c) at least one or more than one compound selected from c1) a compound of formula (I) wherein R1 and R2 are each independently of the other a hydrocarbon radical having from 1 to 12 carbon atoms, c2) a reaction product of a compound of formula (I) with formaldehyde, and c3) a reaction product of a compound of formula (I) with formaldehyde and a phenolic compound, in an amount of from 0.1 to 25% by weight, based on the sum of components a), b) and c), and to a process for the production of cured products using those compositions.

Abstract: The invention relates to Mannich bases prepared using alkyldipropylenetriamines and to addition compounds (adducts) of alkyldipropylenetriamines with acrylonitrile and ethylene oxide or propylene oxide, and to products obtained therefrom by the further addition of epoxy compounds having on average at least one epoxy group per molecule, and to the use of such products as hardeners for curable epoxy resin systems.

Abstract: The invention relates to curable mixtures based on epoxy resins and aminic hardeners and cure accelerators, and, optionally solvents, plasticisers, UV stabilisers, dyes, pigments and/or fillers, wherein there is used as cure accelerator from 1 to 20% by weight, based on epoxy resin, of at least one heterocyclic compound of the general formula (I) wherein R1, R2 and R3, which may be the same or different, are —(CH2)a—N—[(CH2)b—CH3]2 radicals in which a=2 or 3 and b=0 or 1.