Durable, anti-fouling, crosslinked zwitterionic coatings that are grafted to the surface of a substrate through covalent bonding are disclosed. When exposed to a light source, zwitterionic monomers react with a crosslinker and with activated radicals at the surface of the substrate, simultaneously forming the crosslinked zwitterionic coating and anchoring it to the surface of the substrate. Photomasking techniques can be used to micropattern the zwitterionic coatings. The zwitterionic coatings can be applied to a variety of substrates, including medical devices and systems.

Abstract: Forming an object of the present invention is a compound of general formula (I) as identified in the present description, a use of the compound of general formula (I) as a biofouling reducing agent, as an antifouling agent and/or fouling release agent, and a composition comprising said compound, a cross-linkable polymer, and preferably hydrophobic silica nanoparticles.

Described herein are anti-microbial and UV-protective biological devices and extracts produced therefrom. The biological devices include microbial cells transformed with a DNA construct containing genes for producing proteins such as, for example, zinc-related protein/oxidase, silicatein, silaffin, and alcohol dehydrogenase. In some instances, the biological devices also include a gene for lipase. Methods for producing and using the devices are also described herein. Finally, compositions and methods for using the devices and extracts to kill microbial species or prevent microbial growth and to reduce or prevent UV-induced damage or exposure to materials, items, plants, and human and animal subjects are described herein. Also disclosed are biological devices producing polyactive carbohydrates and carbo sugars, as well as compositions and articles incorporating both extracts from these devices and the anti-microbial and UV-protective extracts.

The invention relates to a curable coating composition comprising at least one glycidyl carbamate (GC) resin, at least one amphiphilic GC-functional prepolymer, and at least one curing agent. The invention also relates to a method of making the curable coating compositions. The invention also relates to an article of manufacture comprising the curable coating composition of the invention and a method of making such article. The invention also relates to a fouling-release (FR) coating system and an anti-coating system, each of which comprises the curable coating compositions of the invention, methods of applying the FR coating systems and anti-coating systems to substrates, and methods for reducing or preventing biofouling or icing of a surface exposed to an aqueous environment using the FR coating systems.

A matte clear anti-fouling anti-corrosion surface coating and uses thereof, and a matte clear anti-fouling anti-corrosion surface layer and a matte clear anti-fouling anti-corrosion metal, wherein the matte clear anti-fouling anti-corrosion surface coating comprises: a fluorine-modified polysilazane and a solvent, wherein the content of the fluorine-modified polysilazane is approximately 5-80% by weight based on the total weight of the matte clear anti-fouling anti-corrosion surface coating. Accordingly, the coating can be applied to a corrosion-prone metal sheet or a corrosion-prone metal plate with a protective priming coat (a coated object). The coating is stain repellent, hydrophobic, anti-graffiti, corrosion resistant, clear, matte clear, resistant to temperature changes, resistant to impact, and tough among other characteristics, and is capable of not changing the original color or gloss of the coated object; the coating can be cured at room temperature for direct uses outdoors, and/or can be heated and cured for uses in factories. Additionally, the coating can also be applied directly on a surface of a metal that is not susceptible to rusting, wherein the coating can be applied directly after the addition of a matting agent, or without the addition of a matting agent and the coating can still be matte clear as described above.

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.

The present invention relates to a coating composition with 10 to 100% by weight of a non-fluorinated compound mixture, which comprises at least one compound b and at least one compound a, c, or d: a) alkali metal salt of poly(meth)acrylic acid, alkali metal salt of poly(meth)acrylic acid copolymer, ammonium compound or amine salt of poly(meth)acrylic acid, ammonium compound or amine salt of poly(meth)acrylic acid copolymer, or mixtures thereof; b) silicone polyether, alkali metal salt of silicone polyether carboxylate, ammonium compound or amine salt of silicone polyether carboxylate, or mixtures thereof; c) salt of hydrolyzed α-olefin/maleic anhydride copolymer, salt of esterified α-olefin/maleic anhydride copolymer, α-olefin/maleic anhydride copolymer amic acid resin or salt thereof, or mixtures thereof; or d) polycarboxylate calcium sequestrants or mixtures thereof. Such coatings exhibit improved soil and stain cleaning performance.

The present invention relates to the provision of an aqueous emulsion composition for producing a film showing slippery properties containing hydrophobically modified cellulose fibers and at the same time improving water resistance and durability of the film. Since the emulsion composition of the present invention is capable of forming a film having slippery properties, which can be utilized on various surfaces, for example, those in the fields of coatings for ships and bridges, cosmetics, and the like.

A (meth)acrylic copolymer of the present invention includes at least one constituent unit (A) selected from the group consisting of a constituent unit (A1) having at least one structure (I) represented by Formula (1), Formula (2), or Formula (3), a constituent unit (A2) containing a triorganosilyloxycarbonyl group, and a constituent unit (A3) having at least one structure (III) represented by Formula (4) or Formula (5), a constituent unit (B) derived from a specific polysiloxane block-containing polymerizable monomer (b), and a constituent unit (C) derived from a macromonomer (c).

A coating composition may include a modified polyvinyl alcohol resin (A) having an ethylene unsaturated group in a side chain thereof. Examples of the modified polyvinyl alcohol resin (A) include those including a structural unit represented by formula (II) or (III). Substrates in various technical fields such as the resin molding field, automobile/railway/aircraft/ships-related field, medical product field, food field, agriculture/gardening field, electrical field, and construction field can be coated with such a coating composition.