Provided is an aminimide compound that is excellent in penetration and has excellent curability and storage stability. An aminimide compound represented by the following formula (1), (2) or (3):

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wherein each R.sub.1 independently represents a hydrogen atom, or a monovalent or n-valent organic group having 1 to 15 carbon atoms and optionally having a hydroxy group, a carbonyl group, an ester bond, or an ether bond; R.sub.2 and R.sub.3 each independently represent an unsubstituted or substituted alkyl group having 1 to 12 carbon atoms, aryl group, aralkyl group, or heterocyclic ring having 7 or less carbon atoms in which R.sub.2 and R.sub.3 are linked to each other; each R.sub.4 independently represents a hydrogen atom, or a monovalent or n-valent organic group having 1 to 30 carbon atoms and optionally containing an oxygen atom; and n represents an integer of 1 to 3.

A glycidyl amine epoxy resin(s) and a process for production of glycidyl amine epoxy resin(s) are disclosed. The glycidyl amine epoxy resin(s) is/are free from Bisphenol A (BPA) and Bisphenol F (BPF) and are based on AMES negative amine precursors.

A curable epoxy system useful in the production of composites capable of being used in various industries, including, for example, the aerospace industry. In particular, the present disclosure relates to a curable epoxy system comprising (i) an epoxy component selected from bisphenol C diglycidyl ether, one or more derivatives of bisphenol C diglycidyl ether, and combinations thereof, and (ii) 9,9-bis(4-amino-3-chlorophenyl)fluorene.

A curable epoxy system useful in the production of composites capable of being used in various industries, including, for example, the aerospace industry. In particular, the present disclosure relates to a curable epoxy system comprising (i) an epoxy component selected from bisphenol C diglycidyl ether, one or more derivatives of bisphenol C diglycidyl ether, and combinations thereof, and (ii) 9,9-bis(4-amino-3-chlorophenyl)fluorene.

A curing agent component is useful for a multicomponent epoxide resin composition. An epoxide resin composition produced using the curing agent component, wherein the curing agent component includes, as a curing agent, at least one Mannich base and an amine that is reactive with respect to epoxide groups, as well as at least one polyphenol from the group of novolac resins as an accelerant. The Mannich base can he obtained by reacting a phenolic compound selected from phenol, styrenated phenol, catechol, resorcinol, hydroquinone, hydroxyhydroquinone, phloroglucinol, pyrogallol, o-cresol, m-cresol, p-cresol and bisphenols, with an aldehyde or an aldehyde precursor and an amine having at least two active hydrogen atoms in the molecule which are bonded to a nitrogen atom. The novolac resin is contained in the curing agent component in a proportion of 5-30 wt. %, based on the organic proportions of the curing agent component.

A new adhesive composition comprising a cycloaliphatic-based epoxy composition, which is particularly suitable for use as a structural adhesive in anchoring applications.

A new adhesive composition comprising a cycloaliphatic-based epoxy composition, which is particularly suitable for use as a structural adhesive in anchoring applications.

The present disclosure provides a curing agent comprising a polyetheramine, a tertiary amine substantially free of an aromatic tertiary amine and glycerin. The curing agent may be combined with an epoxy resin to form a curable composition which is capable of being applied to a substrate and cured to form a cured article.

The present disclosure provides a curing agent comprising a polyetheramine, a tertiary amine substantially free of an aromatic tertiary amine and glycerin. The curing agent may be combined with an epoxy resin to form a curable composition which is capable of being applied to a substrate and cured to form a cured article.

A hardener for epoxy resins includes at least one amine of the formula (I) and an amine-functional adduct of at least one polyoxyalkylene polyamine and a diepoxide. The hardener enables transparent epoxy resin compositions of high clarity, which are free of toxic diluents such as nonylphenol, upon curing show a low heat generation but still cure fast and reliably and have a high robustness against yellowing. Such epoxy resin compositions are particularly suitable as casting resin for the manufacturing of transparent articles with a glass-like appearance.