A group of polyfunctional oxetane-based compounds having a structure as represented by general formula (I) or a product obtained by a reaction between a compound of general formula (I) and epichlorohydrin, an ester compound, or an isocyanate compound. When these polyfunctional oxetane-based compounds are used as cation polymerizable monomers in combination with an epoxy compound, the curing speed is high, and the cured product has highly excellent hardness, flexibility, adherence, and heat resistance.

A group of polyfunctional oxetane-based compounds having a structure as represented by general formula (I) or a product obtained by a reaction between a compound of general formula (I) and epichlorohydrin, an ester compound, or an isocyanate compound. When these polyfunctional oxetane-based compounds are used as cation polymerizable monomers in combination with an epoxy compound, the curing speed is high, and the cured product has highly excellent hardness, flexibility, adherence, and heat resistance.

Provided herein is a hardener composition comprising (a) a first adduct comprising a reaction product of a liquid epoxy resin and isophorone diamine; (b) a second adduct comprising a reaction product of a liquid epoxy resin and m-xylylenediamine; and (c) an accelerator component comprising methanesulfonic acid.

Methods for manufacturing a pouch-type battery cell include disposing one or more electrode pairs between a first aluminum pouch layer and a second aluminum pouch layer, sealing the first pouch layer and the second pouch layer to form a peripheral seal joining the first pouch layer and the second pouch layer to form a pouch with an outer edge encasing the anode and the cathode, applying a photocatalytic polymer coating precursor to the outer edge of the pouch, and photo-curing the photocatalytic polymer coating precursor to form a conformal edge coating. The photocatalytic polymer coating precursor includes one or more photo-initiators, one or more acrylates, and one or more polyamines. The polyamines can include tertiary amines including α-CH functional groups, diamines represented by the formula H2N—R—NH2, wherein R represents saturated and unsaturated aliphatic moieties, and N,N′-(2,2-dimethylpropylidene) hexamethylenediamine. The photo-initiators can include Diphenyl(2,4,6-trimethylbenzoyl) phosphine oxide, 2,2-Dimethoxy-2-phenylacetophenone, and p-tert-butylphenyl 1-(2,3)-epoxy)propyl ether.

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.

Phenalkamine epoxy curing agent for outdoor top coat application A novel Mannich reaction based phenalkamine for outdoor application which includes a) para substituted phenol reaction product with polyamine and aldehyde, b) adduct with epoxy resin containing two glycidyl groups. Phenalkamine produced is diluted with an inert solvent. The top coat shows good ultra violet radiation stability, low colour, colour and gloss retention, low viscosity with excellent corrosion resistance. The two-pack epoxy resin paint composition based on Phenalkamine curing agent for outdoor application has very good adhesion as undercoat and very good over coating performance as top coat.

The present invention is directed to a curable composition including: an isocyanate-functional prepolymer; an epoxy-containing component present in an amount of at least 10 percent by weight of the composition; and a latent curing agent having an ability to react with at least one of the isocyanate-functional prepolymer and the epoxy-containing component upon exposure to an external energy source. The present invention is also directed to methods of making the compositions, methods of coating a substrate, methods of adhering substrates and coated substrates.

A method for recycling matrix residues includes steps of degrading a target epoxy to form matrix residues, collecting the matrix residues, and adding the matrix residues into a polymer-forming formulation. Characteristically, the polymer-forming formulation includes multifunctional anhydride monomers and polyfunctional co-reactant monomers.

A one-component thermosetting epoxy resin composition includes at least one epoxy resin A having on average more than one epoxide group per molecule, at least one latent hardener B for epoxy resins, at least one impact modifier D, at least one physical or chemical blowing agent E and fibrous anhydrous magnesium oxysulfate MOS. Thermally expandable epoxy resin compositions have improved adhesion, especially on metal substrates.

Provided is a method for producing a polymer, comprising: a first step for synthesizing a crude polymer by reacting a monomer containing a pyrimidinetrione structure, an imidazolidinedione structure, or a triazinetrione structure, in an organic solvent in the presence of a quaternary phosphonium salt or quaternary ammonium salt; and a second step for precipitating and separating a purified polymer by mixing a poor solvent with the crude polymer-containing solution obtained in the first step.