The present disclosure relates to the use of a composition for reducing or preventing colloids adhesion and/or fouling on a substrate, the composition comprising a copolymer having repeating units derived from one or more zwitterionic monomers and repeating units derived from one or more phosphorous acid monomers.

The present disclosure provides a self-healing coating composition precursor that includes a soft segment precursor, a hard segment precursor, and a diol. The present disclosure also provides self-healing coatings including the same for scratches and deep cracks and/or anti-fouling property, and methods of preparation and use thereof.

An aqueous precursor liquid for forming an anti-fouling heterophasic thermoset polymeric coating is provided. The precursor liquid includes a first fluorine-containing polyol precursor having a functionality >about 2 that forms a fluorine-containing polymer component defining a first phase in the coating. The precursor liquid also includes a second precursor that forms a second component present as a second phase. The first phase can be a continuous phase and the second phase can be a discrete phase, or the second phase can be the continuous phase and the first phase can be the discrete phase. The discrete phase includes a plurality of domains each having an average size of ≥to about 500 nm to ≤to about 25,000 nm. A crosslinking agent, water, and optional acid or base are also present. Methods of making anti-fouling heterophasic thermoset polymeric coatings with such precursors are also provided.

A method for improving the cleanability of an epoxy paint coat on a surface is provided. A paint composition, and its use in improving cleanability is also provided. A kit-of-parts comprising the components of the paint composition is also provided.

Durable polyurea copolymer coatings can be applied to surfaces that come in contact with fluids, such as biological fluids, thereby passivating the surface. Polyurea copolymer coating compositions comprise a reaction product of (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; and (b) a diisocyanate. Solutions containing polyurea copolymers, coated surfaces and methods are also described.

The present invention relates to greenhouse screens comprising strips of film material that are interconnected by a yarn system of longitudinal threads and transverse threads by means of a knitting, warp-knitting or weaving process to form a continuous product. At least 50% of the strips comprise a single- or multi-layer polyester film having a transparency of at least 92%, wherein the polyester film has a first and a second surface, wherein a permanent antifog coating has been applied to at least one of the first or second surfaces of the polyester film. The antifog coating comprises at least one water-soluble polymer, an inorganic hydrophilic material and a crosslinker, wherein the water-soluble polymer is a polyvinyl alcohol or a hydrophilic amorphous copolymer. Furthermore, the present disclosure relates to production processes of the coated polyester film and its use for the production of energy-saving screens having excellent antifogging effect in greenhouses.

The embodiments herein relate to a non-aqueous liquid foul release coating composition and process for controlling aqueous biofouling on man-made objects, including a curable resin system (A) comprising i) a curable polymer free of fluorine atoms and having a backbone selected from a polyurethane, a polyether, a polyester, a polycarbonate or a hybrid of two or more thereof, and having at least one terminal or pendant alkoxysilyl group and ii) optionally a curing agent and/or a catalyst; and (B) a marine biocide and/or a non-curable, non-volatile compound is selected from the group consisting of fluorinated polymers, sterols and sterol derivatives, and hydrophilic-modified polysiloxane oils, wherein the coating composition is essentially free of a curable polysiloxane, and wherein the coating composition is essentially free of non-curable polysiloxanes other than non-curable hydrophilic-modified polysiloxane oils.

The present invention relates to the field of nanotechnology, more particularly to a paint or coating composition that allows microbial corrosion in metal surfaces to be suppressed. The composition comprises a paint base formed by ethylene glycol monobutyl ether and nitrocellulose into which carbon nanotubes have been incorporated. Also disclosed is a method for preparing the paint or coating composition, a method for preventing or eliminating biocorrosion in surfaces exposed to aqueous environments, and lastly, the use of the paint or coating composition.

A composition is provided comprising (a) a polysilazane having a monovalent hydrocarbon group, (b) untreated metal oxide nanoparticles, metal oxide nanoparticles having a monovalent hydrocarbon group, or metal oxide nanoparticles having an alkylsilyl or alkoxysilyl group, and (c) an aprotic solvent. The composition has storage stability and is suitable for forming a film having water repellent, especially superhydrophobic properties.

Zwitterionic double network hydrogels, methods for making zwitterionic double network hydrogels, methods for using zwitterionic double network hydrogels, and articles made from and coated with zwitterionic double network hydrogels.