The present disclosure relates to a tie-coat composition comprising one or more binder polymers obtainable by copolymerizing a mixture of ethylenically unsaturated monomers, wherein the tie-coat composition provides a tie-coat with good dry adhesion, freshwater adhesion and saltwater adhesion to topcoats based on resins with condensable silane groups such as polydiorganosiloxane resins with hydrolysable groups or organic resins with terminal and/or pendant alkoxysilyl groups. The present disclosure further relates to a process for controlling aquatic fouling on a surface of a man-made object comprising applying such tie-coat composition and a topcoat composition, and to a substrate coated with a tie-coat layer deposited from such tie-coat composition and a topcoat layer.

The invention provides a waterborne fouling release coating composition comprising (a) an aqueous polysiloxane-based binder emulsion, wherein said emulsion comprises polysiloxane-based binder droplets having an average droplet size of 4 to 1000 n; and (b) at least one pigment or filler; wherein the coating composition comprises at least 10 wt % water relative to the total weight of L the composition as a whole.

The invention provides a waterborne fouling release coating composition comprising (a) an aqueous polysiloxane-based binder emulsion, wherein said emulsion comprises polysiloxane-based binder droplets having an average droplet size of 4 to 1000 n; and (b) at least one pigment or filler; wherein the coating composition comprises at least 10 wt % water relative to the total weight of L the composition as a whole.

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.

A method for forming a multilayer coating film, comprising the following steps (1) to (5): (1) producing a first aqueous base coating composition comprising combining an acrylic resin dispersion (A) having a core/shell structure and a melamine resin (B), (2) applying the first aqueous base coating composition onto a surface of an object to form an uncured first aqueous base coating film, (3) applying a second aqueous base coating composition onto the uncured first aqueous base coating film to form an uncured second aqueous base coating film, (4) applying a clear coating composition onto the uncured second aqueous base coating film to form an uncured clear coating film, and (5) heat-curing the uncured first aqueous base coating film, the uncured second aqueous base coating film, and the uncured clear coating film obtained in steps (2) to (4) at a time to form the multilayer coating film.

Described herein is a polyester-polyurethane-poly(meth)acrylic hybrid dispersion obtainable by esterifying at least one polyurethane containing carboxyl groups, the at least one polyurethane having an acid number of more than 200 mg KOH/g to 400 mg KOH/g and at least one or more terminal carboxyl groups; with at least one polyester containing hydroxyl groups, the polyester having a hydroxyl number of 50 mg KOH/g to 300 mg KOH/g, to obtain a polyester-polyurethane; followed by polymerizing ethylenically unsaturated monomers at least including (meth)acrylic monomers by radical polymerization in the presence of the polyester-polyurethane where one or more solvents are present and/or employed, thereby obtaining the polyester-polyurethane-poly(meth)acrylic hybrid dispersion.

A resin composition includes a polymer resin, a fluoride resin, and a radical polymerization initiator, where the polymer resin includes at least one selected from an epoxy siloxane-based compound, a (meth)acrylate monomer, and a tetrahydrofurfuryl acrylic acid.

The present invention provides a multi-layer coating system comprising: (a) a first coating layer formed from a first coating composition; and (b) a second coating layer applied directly over at least a portion of the first coating layer and formed from a second coating composition. The present invention further provides a substrate coated with the multi-layer coating system.

The present invention provides a multi-layer coating system comprising: (a) a first coating layer formed from a first coating composition; and (b) a second coating layer applied directly over at least a portion of the first coating layer and formed from a second coating composition. The present invention further provides a substrate coated with the multi-layer coating system.