Disclosed is a composition including controlled release particles, wherein each of the controlled release particles includes: (a) a core including at least one hydrophobic active ingredient; and (b) a wall at least partially surrounding the core and including the reaction products of: (i) an organofunctional silane; (ii) an epoxy; (iii) an amine; (iv) an isocyanate; (v) an epoxide curing agent; wherein the controlled release particles are effective to retain the at least one hydrophobic active ingredient upon exposure to water and effective to release the at least one hydrophobic active ingredient in response to friction. A method for preparing the composition is also disclosed.

Described herein is a process for preparing a polyurethane-polyisocyanurate compound by mixing a) at least one polyisocyanate; b) a mixture (M); c) at least one compound including one or more epoxide groups; d) at least one aliphatic polyol (P1) having a high weight average molecular weight; e) at least one polyol (P2) having a low weight average molecular weight; f) at least one compatibilizer; and, optionally, g) fillers and further additives to form a reaction mixture (RM); and reacting the mixture (RM) to give the polyurethane-polyisocyanurate compound. Also described herein are a polyurethane-polyisocyanurate compound obtainable by the process and a method of using the polyurethane-polyisocyanurate compound for producing bodywork components for vehicles.

The present invention relates to a thermally conductive polyurethane adhesive composition having excellent mechanical properties as well as improved performance after aging and a method of manufacturing the same. Further, the present invention relates to method of manufacturing an article comprising the thermally conductive polyurethane adhesive composition and articles obtainable by the described method.

The invention discloses a composition for fiber surface treatment and a process for treating a fiber. The fiber surface treatment composition of the invention includes maleic anhydride polymer, epoxy resin, blocked isocyanate, curing agent, rubber latex, solvent and optional filler. The fiber treated by the invention has excellent adhesion effects, reaching or even exceeding the adhesion level of RFL treatment.

A method for preparing a thermoplastic polyoxazolidone, the method including catalytically reacting one or more aromatic diisocyanates and one or more diepoxides, wherein the one or more diepoxides comprise one or more 2-phenylpropane-1,3-diol diglycidyl ether derivatives. The one or more diepoxides further contain one or more diglycidyl ethers of aromatic diols.

A molecularly resilient and high-energy transferable material and method of reinforcing and strengthening substrates with the same. The material includes aliphatic polyurea moieties coated on the surface of a pre-curing or curing epoxy, that may or may not compose a fiber reinforced epoxy (F/E) layer, constituting an isophorone diisocyanate amine (IDA) epoxy-surface modification (reaction) to form an interfacial epoxy-polyurea hybridized-matrix (IEPM) material between the epoxy (that may reside on an F/E layer) and a cured polyurea layer. Through its unique set of molecular vibrational properties, which are designed into the IEPM by controlling the thermodynamic IPA reaction, the chemically bonded and molecularly resilient (regenerative) IEPM material incorporates significant fracture toughness, loss modulus (material damping), and reduced elastic modulus into structural substrates and high-tenacity fibers to which it is adhered.

There is provided a photocurable adhesive which is capable of reducing the amount of gas discharged from the cured product. A photocurable adhesive is formulated to be curable by laser light irradiation, The photocurable adhesive contains an epoxy adhesive component, and a light-absorbing component configured to generate heat by laser light irradiation. The epoxy adhesive component contains a cyanate ester resin (A), epoxy resin (B), latent amine curing agent (C), and ion scavenger (D)

A process for producing thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), wherein the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and wherein the process comprises step (α) of placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture, and adding the diisocyanate compound (A), the bisepoxide compound (B) and the compound (D) in step (β) to the mixture resulting from the step (α). The invention is also related to the resulting thermoplastic polyoxazolidinone.

A molecularly resilient and high-energy transferrable material and method of reinforcing and strengthening substrates with the same. The material includes aliphatic polyurea moieties coated on the surface of a pre-curing or curing epoxy, that may or may not compose a fiber reinforced epoxy (F/E) layer, constituting an isophorone diisocyanate amine (IDA) epoxy-surface modification (reaction) to form an interfacial epoxy-polyurea hybridized-matrix (IEPM) material between the epoxy (that may reside on an F/E layer) and a cured polyurea layer. Through its unique set of molecular vibrational properties, which are designed into the IEPM by controlling the thermodynamic IDA reaction, the chemically bonded and molecularly resilient (regenerative) IEPM material incorporates significant fracture toughness, loss modulus (material damping), and reduced elastic modulus into structural substrates and high-tenacity fibers to which it is adhered.

The invention relates to a curable two- or multi-part composition with (a) optionally an at least bifunctional epoxy-containing compound; (b) an at least bifunctional nitrogen-based curing agent suitable for epoxy curing; (c) a radiation-curable hybrid compound having both one or more radiation-curable methacrylate groups and one or more epoxy groups; (d) a radical photoinitiator; (e) optionally an accelerator for epoxy curing, and (f) optionally further additives. In addition, the invention relates to a method for the bonding, casting, molding or coating of substrates using the composition.