A self-healing, scratch resistant slippery surface that is manufactured by wicking a chemically-inert, high-density liquid coating over a roughened solid surface featuring micro and nanoscale topographies is described. Such a slippery surface shows anti-wetting properties, as well as exhibits significant reduction of adhesion of a broad range of biological materials, including particles in suspension or solution. Specifically, the slippery surfaces can be applied to medical devices and equipment to effectively repel biological materials such as blood, and prevent, reduce, or delay coagulation and surface-mediated clot formation. Moreover, the slippery surfaces can be used to prevent fouling by microorganisms such as bacteria.

An electronic device, according to various embodiments, may comprise: an outer housing comprising a front plate facing a first direction, a rear plate facing a direction opposite to the front plate, and a side member for surrounding a space between the front plate and the rear plate, wherein the side member protrudes toward the space and includes a protrusion having a first surface facing the first direction; an opaque layer disposed in the space so as to be parallel with the front plate and including a first portion located between the first surface and the front plate, wherein the first portion includes a second surface facing the first surface; an adhesiveness improvement layer formed on the second surface of the opaque layer and having a repetitive pattern; and a waterproof layer disposed between the adhesiveness improvement layer and the first surface and attached to the adhesiveness improvement layer and the first surface. Other various embodiments may be possible.

The present invention relates to a film-forming dispersion comprising a functionalized polyamide and water.

A coating composition, coated article and method for coating an article are provided. The composition is a coating composition that includes a polyurethane binder system further including a first resin component and a second resin component with a significant difference in hydroxyl numbers and crosslinked with an isocyanate. The composition, when applied to and cured on an article, imparts optimal antifingerprint, antireflecting, tactile, chemical agent-resistant, and self-healing effects to the coated article.

A functional polymer including at least two different types of side chains, having the general formula (1),

##STR00001##

wherein A is an at least monosubstituted alkylene or arylene group; B is an amide, ester or ether group and n is 0 or 1; F is selected from: an ester, secondary amine, amide, ether, thio ether, thio ester, and may be the same or different for the different side chains; D is a side chain intended to reversible bind to a substrate or has a coating function; E is a side chain intended to irreversible bind to a substrate, the side chain E and polymer includes 1 to 10 different side chains D and 1 to 10 different side chains E, but at least one of each, and includes a plurality of each type, whereby the different types of side chains are randomly or regularly distributed in the polymer.

A process and composition for coating a pipe and a pipe support includes mixing a cellulose acetate, a plasticizer, and an oil together so as to form a solid mixture, heating the solid mixture so as to form a liquid state, covering an area of the joinder of the pipe and the pipe support with the liquid state, and drying the liquid state on the area of the joinder. An ethylene-based polymer stabilizer is added to the mixture of the cellulose acetate, the plasticizer and the oil. The oil migrates by gravity from the liquid state from the covered pipe into an area of contact between the pipe and the pipe support. The liquid state is applied around the outer diameter of the pipe and over the outer surface of the pipe support underlying the outer diameter of the pipe.

An antifouling structure of the present invention includes: a non-volatile liquid; a microporous structure layer retaining the non-volatile liquid; and a base with the microporous structure layer on a surface of the base. A surface roughness (Rz) of the microporous structure layer and a film thickness (T) of the non-volatile liquid satisfy Rz<T. The automobile part with an antifouling structure of the present invention includes the above-described antifouling structure.

The present application discloses molecularly well-defined antibiofouling and polyionic coatings, materials and methods of use.

In certain embodiments, the invention is directed to apparatus comprising a liquid-impregnated surface, said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin, and methods thereof. In some embodiments, one or both of the following holds: (i) 0<0.25, where is a representative fraction of the projected surface area of the liquid-impregnated surface corresponding to non-submerged solid at equilibrium; and (ii) S.sub.ow(a)<0, where S.sub.ow(a) is spreading coefficient, defined as .sub.wa.sub.wo.sub.oa, where is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid.

A self-healing, scratch resistant slippery surface that is manufactured by wicking a chemically-inert, high-density liquid coating over a roughened solid surface featuring micro and nanoscale topographies is described. Such a slippery surface shows anti-wetting properties, as well as exhibits significant reduction of adhesion of a broad range of biological materials, including particles in suspension or solution. Specifically, the slippery surfaces can be applied to medical devices and equipment to effectively repel biological materials such as blood, and prevent, reduce, or delay coagulation and surface-mediated clot formation. Moreover, the slippery surfaces can be used to prevent fouling by microorganisms such as bacteria.