The present invention provides a resin composition comprising: (A) 100 parts by weight of epoxy resin; (B) from 10 to 80 parts by weight of benzoxazine resin; (C) from 10 to 50 parts by weight of dicyclopentadiene phenol resin; and (D) from 0.5 to 5 parts by weight of amine hardener; wherein the resin composition is free of diallyl bisphenol A (DABPA).

The present invention provides a resin composition containing an epoxy compound A having a specific structure having an aromatic ring, and having an epoxy equivalent in the range of from 500 to 10,000 g/eq, and an epoxy compound B having an epoxy equivalent in the range of from 100 to 300 g/eq, and a bonding agent containing the resin composition. Further, the present invention provides a cured product containing resin particles and a matrix resin, wherein the resin particles are a cured product of an epoxy compound A having a specific structure having an aromatic ring, and having an epoxy equivalent in the range of from 500 to 10,000 g/eq, and the matrix resin is a cured product of an epoxy compound B having an epoxy equivalent in the range of from 100 to 300 g/eq, and a laminate having a substrate and the cured product.

An epoxy resin composition including A) at least one epoxy compound, and B) a hardener composition including B1) from 0.1%-100% by weight of 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine, and B2) from 99.9%-0% by weight of at least one further diamine and/or polyamine, where the stoichiometric ratio of the epoxy groups of A) and the number of active hydrogen atoms of the functional groups of B) varies from 1:2 to 2:1.

The invention relates to a composition comprising components a), b) and c), to a process for the preparation thereof, and to the use thereof. In one embodiment, a composition is provided which comprises the following components a), b) and c): a) from 75 to 99.5% by weight of a polymer based on epoxide compounds, from 0.5 to 25% by weight of at least one polyhydric alcohol, and optionally additives, b) from 80 to 99% by weight of a curing agent which is suitable for curing the polymer based on epoxide compounds, from 1 to 20% by weight of a polycaprolactone-polysiloxane block copolymer, optionally an accelerator, and optionally additives, and c) optionally an accelerator.

A thermally or photo curable adhesive composition containing a bisphenol F epoxy resin and a bisphenol A epoxy resin in a ratio between 2 and 10. The composition further contains at least one epoxy acrylate component and a rubber modified bisphenol. The adhesive composition is applicable by a melt or liquid coating technique and undergoes curing upon exposure to heat or radiation, showing improved viscoelastic properties and suitable to provide a cured product having superior durability.

An epoxy resin obtained by a reaction of an epoxy resin monomer having a mesogen backbone and having two glycidyl groups in one molecule with a divalent phenol compound having, as substituents, two hydroxyl groups on one benzene ring, in which a number average molecular weight in gel permeation chromatographic measurement is from 600 to 2,500.

A primer for forming a primer layer on the surface of a substrate having surface free energy of 50 mN/m or higher, the primer including a liquid crystalline epoxy compound and a curing agent.

Provided is a method for degrading epoxy resins by enzymatic route, in particular by adding an epoxy resin in a solvent followed by treatment with a glutathione S-transferase. A method for recycling a composite material comprising epoxy resin as well as the use of glutathione 5-transferase and eventually para-hydroxybenzoate hydroxylase for degrading epoxy resins are also provided.

This invention relates to a composition comprising a semisolid epoxy resin containing a curative dispersed therein. The curative has a particle size such that at least 90% of the particles have a size below 25 pm at ambient temperature of 21° C., wherein the composition further comprises a diluent containing a particulate filler. The composition is used as matrix in prepregs. The use of the diluent increases peel strength of the composition when brought into contact with metal or wood substrate.

A method of preparing a composition for a one-package (1 K) waterborne non isocyanate polyurethane epoxy hybrid coating includes providing a cyclic carbonate; combining the cyclic carbonate with an internal emulsifier and a diamine to thereby obtain a non-isocyanate polyurethane (NIPU) prepolymer; subjecting the NIPU prepolymer to chain extension by combining the NIPU prepolymer with an epoxy resin, to thereby obtain a chain extended NIPU polymer; subjecting the chain extended NIPU polymer to neutralization by combining the chain extended NIPU polymer with a neutralizing agent, to thereby obtain a neutralized NIPU polymer; and dispersing the neutralized NIPU polymer in water to thereby provide a waterborne NIPU liquid dispersion.