A self-emulsifying epoxy composition is prepared by the components comprising an epoxide adduct a) and an epoxide compound b), the solid content of the self-emulsifying composition has a smaller particle size. The self-emulsifying epoxy composition can be used to prepare the coating composition which has favorable anti-corrosion-performance.

A conductive coating material is disclosed including at least (A) 100 parts by mass of a binder component including a solid epoxy resin that is a solid at normal temperature and a liquid epoxy resin that is a liquid at normal temperature, (B) 500 to 1800 parts by mass of metal particles that have a tap density of 5.3 to 6.5 g/cm.sup.3 with respect to 100 parts by mass of the binder component (A), (C) 0.3 to 40 parts by mass of a curing agent that contains at least one imidazole type curing agent with respect to 100 parts by mass of the binder component (A), and (D) 150 to 600 parts by mass of a solvent with respect to 100 parts by mass of the binder component (A).

A conductive coating material is disclosed including at least (A) 100 parts by mass of a binder component including a solid epoxy resin that is a solid at normal temperature and a liquid epoxy resin that is a liquid at normal temperature, (B) 500 to 1800 parts by mass of metal particles that have a tap density of 5.3 to 6.5 g/cm.sup.3 with respect to 100 parts by mass of the binder component (A), (C) 0.3 to 40 parts by mass of a curing agent that contains at least one imidazole type curing agent with respect to 100 parts by mass of the binder component (A), and (D) 150 to 600 parts by mass of a solvent with respect to 100 parts by mass of the binder component (A).

A negative type photosensitive resin composition containing an epoxy group-containing resin; a metal oxide; and a cationic polymerization initiator (I). The cationic polymerization initiator (I) contains one or more of a compound represented by Formula (I1) and a compound represented by Formula (I2). In Formula (I1), R.sup.b01 to R.sup.b04 represent an aryl group which may have a substituent or a fluorine atom. In Formula (I2), R.sup.b05 represents a fluorinated alkyl group which may have a substituent or a fluorine atom. A plurality of R.sup.b05's may be the same as or different from one another. q represents an integer of 1 or greater, and Q.sup.q+'s each independently represent a q-valent organic cation. ##STR00001##

A negative type photosensitive resin composition containing an epoxy group-containing resin; a metal oxide; and a cationic polymerization initiator (I). The cationic polymerization initiator (I) contains one or more of a compound represented by Formula (I1) and a compound represented by Formula (I2). In Formula (I1), R.sup.b01 to R.sup.b04 represent an aryl group which may have a substituent or a fluorine atom. In Formula (I2), R.sup.b05 represents a fluorinated alkyl group which may have a substituent or a fluorine atom. A plurality of R.sup.b05's may be the same as or different from one another. q represents an integer of 1 or greater, and Q.sup.q+'s each independently represent a q-valent organic cation. ##STR00001##

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.

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.

Provided is an icephobic coating composition comprising an epoxy resin comprising poly(phenyl glycidyl ether)-co-formaldehyde and a curing agent; a fluoro-substituted poly(alkyl siloxane) resin; and a solvent mixture comprising a first solvent with Hansen solubility parameters of 14≤δ.sub.D≤17, 6≤δ.sub.P≤13, and 4≤δ.sub.H≤8; and a second solvent with Hansen solubility parameters of 16≤δ.sub.D≤19, 4≤δ.sub.P≤9, and 11≤δ.sub.H≤15. Further provided is a coated filter comprising a porous medium having an upstream surface and a downstream surface, in which at least the upstream surface has a coating formed from the coating composition. Coated articles and methods of forming coated articles and inhibiting ice formation also are described.