The present invention is directed to the use as a reactive component in the curing of compositions based on epoxy resins of a functionalized α-angelica lactone (XOMAL) having the general formula: ##STR00001##
wherein: R.sup.a is a C.sub.1-C.sub.30 alkyl, C.sub.3-C.sub.30 cycloalkyl, C.sub.6-C.sub.18 aryl or C.sub.2-C.sub.12 alkenyl group.

A surfactant comprising the reaction product of: (a) an epoxidised carboxylic acid ester; and (b) a compound including at least one reactive alcohol and/or amino functional group.

The present disclosure relates to a method for manufacturing an ultra-low-temperature, fast-curable epoxy resin and a powder coating composition comprising a resin manufactured thereby and, specifically, to a method for manufacturing an ultra-low-temperature, fast-curable epoxy resin and a powder coating composition comprising a resin manufactured thereby, wherein the epoxy resin is curable in conditions of 110-130° C./10 min and thus can be used even in a material, of which the temperature is difficult to raise or which is sensitive to heat.

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 fluorine-containing ether compound of the present invention is represented by the following General Formula (1). (In the General Formula (1), X is a trivalent atom or a trivalent atom group, A is a linking group including at least one polar group, B is a linking group having a perfluoropolyether chain, and D is a polar group or a substituent having a polar group at the end.)
[Chem. 1]
XA-B-D).sub.3  (1)

An epoxy resin includes a reaction product between an epoxy compound and a compound having a naphthalene structure and a functional group that is reactive with an epoxy group.

Disclosed are a modified epoxy resin immobilized enzyme, a preparation method therefor and an application thereof. Herein, the preparation method includes the following steps: modifying an epoxy resin, adding a polyethyleneimine to a modified epoxy resin for further modification, and then adding an enzyme to be immobilized and a glutaraldehyde for immobilization, to obtain the modified epoxy resin immobilized enzyme. The epoxy resin is modified, the polyethyleneimine is added to the modified epoxy resin for the further modification, and an aldehyde group in the resin and an amino group in the polyethyleneimine are covalently bound to each enzyme, then it is activated by the bifunctional reagent glutaraldehyde.

A method of making a functionalized fluorinated monomer for use in making oligomers and polymers that can be used to improve surface properties of polymer-derived systems, such as coatings. The method of making a functionalized fluorinated monomer includes reacting at least one fluorinated nucleophilic reactant, such as a fluorinated alcohol, with at least one compound containing at least one epoxide group. Other methods include reaction of a fluorinated alcohol with a cyclic carboxylic anhydride. In another embodiment, a method includes reacting a fluorinated mesylate, tosylate or triflate with an amine, alkoxide or phenoxide. In other embodiments, the method includes reacting a fluorinated alcohol with an alkyl halide, or reacting a fluorinated alkyl halide with an amine. The functionalized fluorinated monomers may be used as intermediates and reacted to modify the functional groups thereon. Further, the functionalized fluorinated monomers may be reacted to form polymers or oligomers, or with polymers or oligomers having functional groups to modify the polymer or oligomer through the functional group thereon.

An epoxy resin includes a reaction product between an epoxy compound and a compound having a naphthalene structure and a functional group that is reactive with an epoxy group.

The present invention relates to a modifier comprising benzyl alcohol-based alkoxylates for curable compositions comprising at least one epoxy resin and a hardener, which are obtained by reacting benzyl alcohol with alkylene oxides, the benzyl alcohol-based alkoxylates having at least one ethoxy fragment.