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.

An epoxy compound including a 5-membered aromatic heterocyclic ring represented by Formula 1 or Formula 2, a composition prepared using the epoxy compound, a semiconductor device prepared using the epoxy compound, an electronic device prepared using the epoxy compound, an article prepared using the epoxy compound, and a method of preparing the article:
E1-(M1).sub.a1-(L1).sub.b1-M3-(L2).sub.b2-(M2).sub.a2-E2  Formula 1
E1-(M1).sub.a1-(L1).sub.b1-M3-(L2).sub.b2-(M2).sub.a2-(L5).sub.b5-A-(L6).sub.b6-(M4).sub.a3-(L3).sub.b3-M6-(L4).sub.b4-(M5).sub.a4-E2  Formula 2 wherein in Formulae 1 and 2, M1, M2, M3, M4, M5, M6, L1, L2, L3, L4, L5, L6, E1, E2, a1, a2, a3, a4, b1, b2, b3, b4, b5, and b6 are the same as those defined in the detailed description.

A crosslinking composition includes a compound having at least two functional groups that are each independently represented by Chemical Structure (I): ##STR00001##
X is an oxygen, sulfur, or nitrogen; R.sup.1 is an alkyl group, an aryl group, or an alkylaryl group; R.sup.2, R.sup.3, and R.sup.4 are each independently an alkyl group, an aryl group, an alkylaryl group, or a hydrogen; R.sup.5 is an alkyl group, an aryl group, an alkylaryl group, or a hydrogen; z is 0 when X is oxygen or sulfur and z is 1 when X is nitrogen; and when a double bond is formed between a carbon atom bonded to R.sup.3 and an adjacent nitrogen, m is 0, and when a single bond is formed between the carbon atom bonded to R.sup.3 and the adjacent nitrogen, m is 1.

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.

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.

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.

To provide a photopolymerization sensitizer which will not cause problems of dusting or coloring of a cured product by bleeding of additives such as the photopolymerization sensitizer on the surface e.g. by blooming at the time of photo-curing or during storage of the cured product, and which imparts a practically sufficient photo-curing rate. An oligomer of a 9,10-bis(substituted oxy)anthracene compound having repeating units represented by the following formula (1): ##STR00001##
wherein n represents a repetition number and is from 2 to 50, each of X and Y which may be the same or different, is a hydrogen atom, a C.sub.1-8 alkyl group or a halogen atom, and A is a bivalent substituent.

A composite structure comprising a resinous component that is adhered to a surface of a metal component is provided. The resinous component is formed from a polymer composition that comprises a polyarylene sulfide, inorganic fibers, and an impact modifier. The inorganic fibers have an aspect ratio of from about 1.5 to about 10.

The invention relates to an impregnation resin mixture and to the use thereof. In one embodiment, an impregnation resin mixture includes a) at least one epoxide resin component selected from the group consisting of polyepoxides based on bisphenol A and/or F, and advancement resin produced therefrom, based on epoxidized halogenated bisphenols and/or epoxidized novolaks and/or polyepoxide esters based on phthalic acid, hexahydrophthalic acid, or based on terephthalic acid, epoxidized polyaddition products from dicyclopentadiene and phenol or cycloaliphatic compounds, b) as reactive diluents, 2 to 30 wt. % lactones with respect to the sum of the epoxy resin components, c) BCI3 and/or BCI3 complexes and/or a compound selected from the group of imidazoles and d) optionally additional additives, wherein the impregnation resin mixture does not contain any carboxylic acid anhydrides.

The present disclosure provides a side chain liquid crystal epoxy monomer (S-LCEM) and a preparation method thereof, and a side chain liquid crystal epoxy resin (S-LCER) with high intrinsic thermal conductivity, and belongs to the technical field of epoxy resin materials. There are biphenyl mesogenic groups with strong rigidity in a molecular structure of the S-LCEM provided in the present disclosure and there are also flexible connections among chain segments, which promotes the ordered arrangement of S-LCEM molecular chains during a curing process. The highly-ordered arrangement of such mesogenic units is conducive to the formation of a local crystalloid structure, so that a heat flow is transferred along a direction of the ordered molecular chain, which effectively inhibits the scattering of phonons in the S-LCER with high intrinsic thermal conductivity and greatly improves the intrinsic thermal conductivity of the S-LCER with high intrinsic thermal conductivity.