A method includes using at least one salt (S) selected from the salts of nitric acid, salts of nitrous acid, salts of halogens or salts of trifluoromethanesulfonic acid as an accelerator in a multi-component epoxy resin compound for the chemical fastening of construction elements and/or anchoring means. Another method includes the chemical fastening of construction elements and anchoring elements, such as anchor rods, anchor bolts, rods, sleeves, reinforcing bars, screws and the like in boreholes in various substrates.

A liquid epoxy resin composition is provided. In preferred embodiments, the liquid epoxy resin composition is free of bisphenol A, bisphenol F, and bisphenol S, including epoxides thereof, and is useful in preparing a polyether polymer having utility in coating compositions, including, e.g., coating compositions for use on food or beverage containers.

Compounds can be used as catalysts, particularly in ring-opening polymerization reactions, including ring-opening co-polymerization (ROCOP) reactions, or in isocyanate trimerization reactions. The compounds have the formula L-M-X.sub.n, where L is a pyridyl-bis(iminophenolate) ligand, M is a metal ion, X is a co-ligand to balance the charge of the compound, and n is an integer from 0 to 7. The compounds can be prepared by base condensation of a pyridyl-diamine compound with an aldehyde or ketone.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

A method involves using at least one salt (S) selected from the salts of nitric acid, salts of nitrous acid, salts of halogens, or salts of trifluoromethanesulfonic acid, as an accelerator in a multi-component epoxy resin compound for the chemical fastening of construction elements and/or anchoring elements. Another method involves the chemical fastening of construction elements and anchoring elements, such as anchor rods, anchor bolts, rods, sleeves, reinforcing bars, screws, and the like in boreholes in various substrates.

Solvent free epoxy systems are disclosed that can include a hardener compound H comprising: a molecular structure (R.sub.1—(Y.sup.1)n), wherein R.sub.1 is an ionic moiety, Y.sup.1 is a nucleophilic group, n is a between 2 and 10; and an ionic moiety A acting as a counter ion to R.sub.1; and an epoxy compound E comprising: a molecular structure (R.sub.2—Z.sup.1)n), wherein R.sub.2 is an ionic moiety, Z.sup.1 comprises an epoxide group, n is a between 2 and 10, and an ionic moiety B acting as a counter ion to R.sub.2. In embodiments, the epoxy compound E and/or the hardener H is comprised in a solvent-less ionic liquid. The systems can further include accelerators, crosslinkers, plasticizers, inhibitors, ionic hydrophobic and/or super-hydrophobic compounds, ionic hydrophilic compounds, ionic transitional hydrophobic/hydrophilic compounds, biological active compounds, and/or plasticizer compounds. Polymers made from the disclosed epoxy systems and their methods of use are described.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

The present disclosure relates to materials for photoinitiated cationic ring-opening polymerization (ROP). The present disclosure also relates to uses of the materials, e.g., in 3D printing.

The present invention relates to compositions (self-thermally) curable on demand under the triggering action of UV-visible to near-infrared irradiation of moderate intensity, method of using same for accelerated photopolyaddition of cyclic ether-amine resins or ultrafast dark curing of cyclic ether-amine resins, and articles obtained by such method. The invention also relates to a resin casting, film or coated substrate, and an adhesive layer or bonding agent, comprising acyclic ether-amine resin obtained by an accelerated curing process according to the invention. The invention additionally relates to the use of a composition of the invention for increasing the delamination strength of laminated composite materials.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.