The present invention relates to substrates comprising a crosslinked network of covalently attached antimicrobial and/or antibiofouling polymers. The crosslinked network of antimicrobial and/or antibiofouling polymers acts highly efficiently against pathogens, e.g. bacteria and fungi. Both the antimicrobial and the antibiofouling cross-linked polymer networks are preferably better resistant to mechanical damage than simple surface-immobilized polymer monolayers. The antimicrobial and/or antibiofouling polymers of the crosslinked network are preferably obtained by ring opening metathesis polymerization (ROMP) and exhibit a molecular weight of preferably more than 30,000 or even 100,000 g mol.sup.1. The crosslinked network of antimicrobial and/or antibiofouling polymers is preferably covalently attached to the surface of a substrate, e.g. an implant, a medical device, medical equipment or a (tissue-supporting) biomaterial, etc. The present invention is also directed to uses of crosslinked networks of antimicrobial and/or antibiofouling polymers as defined herein, e.g. for coating a surface of a substrate, and to methods therefore.

An anti-fouling coating is provided, containing a continuous matrix comprising a first component; a plurality of inclusions comprising a second component, wherein the first component is a low-surface-energy polymer having a surface energy, and the second component is a hygroscopic material containing one or more ionic species. The low-surface-energy polymer and the hygroscopic material are chemically connected ionically or covalently, such as in a segmented copolymer composition comprising fluoropolymer soft segments and ionic species contained within the soft segments. The continuous matrix and the inclusions form a lubricating surface layer in the presence of humidity. Coefficient-of-friction experimental data is presented for various sample coatings. The incorporation of ionic species into the polymer chain backbone increases the hygroscopic behavior of the overall structure. Improvement in lubrication enables material to be cleared from a surface using the natural motion of an automotive or aerospace vehicle.

Articles are provided comprising a substrate and a coating. The coating comprises a polyelectrolyte complex having surface roughness. The polyelectrolyte complex has a thickness of at least 10 micrometers and a roughness of at least 1 micrometer.

A composition for producing a tribological composite material includes at least one platelet-shaped solid-state lubricant, at least one type of inorganic, platelet-shaped pigment particles, at least one surface-active compound which possesses at least one hydrophilic group and at least one hydrophobic group, and a curable binder system comprising at least one organic polymer or oligomer having one or more functional groups, or a precursor thereof.

Coating compositions for the preparation of superhydrophobic (SH) and/or oleophobic (OP) surfaces that employ low amounts of volatile organic compounds are described. Also described are the resulting coatings/coated surfaces and methods of their preparation. Such coatings/surfaces have a variety of uses, including their ability to prevent or resist water, dirt and/or ice from attaching to a surface.

A coated article having a substrate coated with a layer of a sulfonate-functional coating, and methods of making and using.

Methods of forming a boat hull include applying an outer polymer layer onto a hull mold, the outer polymer layer being impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage. An inner polymer layer is applied onto the outer polymer layer, the inner polymer layer being impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage. One or more layers of fiberglass matting are applied on the inner polymer layer, the fiberglass matting being saturated with a polymer selected from one of a group of polymers comprising a vinyl ester polymer, a phthalic unsaturated polyester polymer, and an epoxy polymer.

Provided are a coating film including a base film and a coating layer disposed on the base film, wherein the coating layer has a water contact angle of 100? or more and a water contact angle after scratching of 98? or more, and a display device including the coating film. Also, provided is a coating composition for producing the coating layer.

Disclosed herein are carboxyl group containing perfluoropolyether compounds of formula (I): RfX.sup.1X.sup.2 (I), wherein the groups Rf, X.sup.1 and X.sup.2 are defined herein. Also disclosed are methods of preparing and using perfluoropolyether compounds.

The present invention relates to the use of alkyd resins for disinfecting purposes. It further relates to the use of alkyd resins for disinfecting purposes in antimicrobial surfaces, paints or coatings.